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  • ASP.NET分页控件

    效果图

    这个在用户控件一用一次

    <%@ Register Assembly="Uni2Uni.ERP.Common" Namespace="Uni2Uni.ERP.Common.PageBar"
        TagPrefix="cc1" %>
    <cc1:PageBar ID="pageBar" runat="server" Mode="Post" />

    然后使用那个用户控件


    1. <uc1:PageBarControl ID="PageBarControl1" runat="server" />  
    2.   
    3.   
    4. PageBarControl1.PageBar.Click += new EventHandler(PagerChange);  
    5.           
    6.   
    7.         private void PagerChange(object sender, EventArgs e)  
    8.         {  
    9.             var queryEntity = ViewState["queryEntity"] as DamagedQueryEntity;  
    10.             GetPageData(queryEntity, false);  
    11.         }  
    12.   
    13.   
    14.  private void GetPageData(DamagedQueryEntity queryEntity, bool bFirst = true)  
    15.         {  
    16.             if (bFirst)  
    17.                 PageBarControl1.PageBar.CurrentIndex = 1;  
    18.             int totalCount;  
    19.             var list = bll.GetDamagedOrderPage(PageBarControl1.PageBar.CurrentIndex, PageBarControl1.PageBar.Size, out totalCount, queryEntity);  
    20.             this.PageBarControl1.PageBar.Total = totalCount;  
    21.             this.bindData.DataSource = list;  
    22.             this.bindData.DataBind();  
    23.         }  


     

    源码


    1. using System;  
    2. using System.Collections.Specialized;  
    3. using System.ComponentModel;  
    4. using System.Text;  
    5. using System.Text.RegularExpressions;  
    6. using System.Web.UI;  
    7. using System.Web.UI.HtmlControls;  
    8. using System.Web.UI.WebControls;  
    9.   
    10. [assembly: WebResource("Uni2Uni.ERP.Common.PageBar.PageBar.css", "text/css", PerformSubstitution = true)]  
    11.   
    12. namespace Uni2Uni.ERP.Common.PageBar  
    13. {  
    14.     public enum PageBarMode  
    15.     {  
    16.         Get,  
    17.         Post  
    18.     }  
    19.   
    20.     #region - PageBar -  
    21.   
    22.     /// <summary>  
    23.     /// 分页控件  
    24.     /// </summary>  
    25.     [ToolboxData("<{0}:PageBar runat="server" />")]  
    26.     [DefaultEvent("Click")]  
    27.     [DefaultProperty("Size")]  
    28.     public sealed class PageBar : WebControl, IPostBackEventHandler  
    29.     {  
    30.         #region - Properties -  
    31.   
    32.         #region = Total =  
    33.   
    34.         /// <summary>  
    35.         /// 总共有多少记录集合  
    36.         /// </summary>  
    37.         /// <value>The total.</value>  
    38.         [Category("Data"), Description("总共有多少记录集合")]  
    39.         public int Total  
    40.         {  
    41.             get  
    42.             {  
    43.                 object o = ViewState["Total"];  
    44.                 return o == null ? 0 : (int)o;  
    45.             }  
    46.             set { ViewState["Total"] = value; }  
    47.         }  
    48.   
    49.         #endregion  
    50.   
    51.         #region = CurrentIndex =  
    52.   
    53.         /// <summary>  
    54.         /// 当前使用的页面  
    55.         /// </summary>  
    56.         /// <value>The index of the current.</value>  
    57.         [Category("Data"), Description("当前使用的页面")]  
    58.         public int CurrentIndex  
    59.         {  
    60.             get  
    61.             {  
    62.                 object o = ViewState["CurrentIndex"];  
    63.                 int _currentindex = ((o == null) ? 0 : (int)o);  
    64.                 if (_currentindex == 0)  
    65.                 {  
    66.                     _currentindex = 1;  
    67.   
    68.                     if (string.IsNullOrEmpty(UrlFormatString) == false)  
    69.                     {  
    70.                         string url = Page.Request.Url.ToString();  
    71.                         string urlformat = string.Format(UrlFormatString, @"(d+)");  
    72.                         urlformat = urlformat.Replace("?", "\?");  
    73.                         urlformat = Regex.Replace(urlformat, "#.+$", string.Empty);  
    74.   
    75.                         Match m = Regex.Match(url, urlformat, RegexOptions.IgnoreCase);  
    76.   
    77.                         if (m.Success)  
    78.                         {  
    79.                             string value = m.Groups[1].Value;  
    80.                             if (string.IsNullOrEmpty(value) == false)  
    81.                             {  
    82.                                 _currentindex = int.Parse(value);  
    83.                             }  
    84.                         }  
    85.                     }  
    86.                     else  
    87.                     {  
    88.                         if (Page.Request.QueryString[QueryStringKey] != null)  
    89.                         {  
    90.                             int.TryParse(Page.Request.QueryString[QueryStringKey], out _currentindex);  
    91.                         }  
    92.                     }  
    93.                 }  
    94.                 return _currentindex;  
    95.             }  
    96.             set { ViewState["CurrentIndex"] = value; }  
    97.         }  
    98.   
    99.         #endregion  
    100.   
    101.         #region = Size =  
    102.   
    103.         /// <summary>  
    104.         /// 每个页面显示多少记录集合  
    105.         /// </summary>  
    106.         /// <value>The size.</value>  
    107.         [Category("Data"), Description("每个页面显示多少记录集合")]  
    108.         public int Size  
    109.         {  
    110.             get  
    111.             {  
    112.                 object o = ViewState["Size"];  
    113.                 return o == null ? 10 : (int)o;  
    114.             }  
    115.             set { ViewState["Size"] = value; }  
    116.         }  
    117.   
    118.         #endregion  
    119.   
    120.         #region = Displaysize =  
    121.   
    122.         /// <summary>  
    123.         /// 显示页脚,控件显示多少页面数  
    124.         /// </summary>  
    125.         /// <value>The displaysize.</value>  
    126.         [Category("Data"), Description("控件显示多少页面数")]  
    127.         public int Displaysize  
    128.         {  
    129.             get  
    130.             {  
    131.                 object o = ViewState["Displaysize"];  
    132.                 return o == null ? 10 : (int)o;  
    133.             }  
    134.             set { ViewState["Displaysize"] = value; }  
    135.         }  
    136.   
    137.         #endregion  
    138.   
    139.         #region = Unit =  
    140.   
    141.         /// <summary>  
    142.         /// 记录的单位  
    143.         /// </summary>  
    144.         /// <value>The unit.</value>  
    145.         [Category("Appearance"), Description("记录的单位")]  
    146.         public string Unit  
    147.         {  
    148.             get  
    149.             {  
    150.                 object o = ViewState["Unit"];  
    151.                 return o == null ? string.Empty : (string)o;  
    152.             }  
    153.             set { ViewState["Unit"] = value; }  
    154.         }  
    155.   
    156.         #endregion  
    157.   
    158.         #region = UrlFormatString =  
    159.   
    160.         [  
    161.             Category("Property"),  
    162.             Description("获取或设置 URL 显示格式。"),  
    163.             DefaultValue("")  
    164.         ]  
    165.         public string UrlFormatString  
    166.         {  
    167.             get  
    168.             {  
    169.                 object o = ViewState["UrlFormatString"];  
    170.                 return o == null ? string.Empty : (string)o;  
    171.             }  
    172.             set { ViewState["UrlFormatString"] = value; }  
    173.         }  
    174.   
    175.         #endregion  
    176.   
    177.         #region = QueryStringKey =  
    178.   
    179.         /// <summary>  
    180.         /// 传递值是使用的关键字  
    181.         /// </summary>  
    182.         /// <value>The query string key.</value>  
    183.         [Description("传递值是使用的关键字"), DefaultValue("page")]  
    184.         public string QueryStringKey  
    185.         {  
    186.             get  
    187.             {  
    188.                 object o = ViewState["QueryStringKey"];  
    189.                 return o == null ? "page" : (string)o;  
    190.             }  
    191.             set { ViewState["QueryStringKey"] = value; }  
    192.         }  
    193.   
    194.         #endregion  
    195.   
    196.         #region = 跳转的页数 =  
    197.         /// <summary>  
    198.         /// 跳转的页数  
    199.         /// </summary>  
    200.         [Browsable(true)]  
    201.         [Bindable(true, BindingDirection.TwoWay)]  
    202.         [DefaultValue("")]  
    203.         [Localizable(true)]  
    204.         [PersistenceMode(PersistenceMode.EncodedInnerDefaultProperty)]  
    205.         [Description("跳转的页数")]  
    206.         public string Text  
    207.         {  
    208.             get  
    209.             {  
    210.                 return ViewState["Text"] == null ? "" : ViewState["Text"].ToString();  
    211.             }  
    212.             set  
    213.             {  
    214.                 ViewState["Text"] = value;  
    215.             }  
    216.         }  
    217.         #endregion  
    218.   
    219.         #region = Format =  
    220.   
    221.         /// <summary>  
    222.         /// 数字格式化  
    223.         /// </summary>  
    224.         /// <value>The format.</value>  
    225.         [Description("数字格式化"), DefaultValue("")]  
    226.         public string Format  
    227.         {  
    228.             get  
    229.             {  
    230.                 object o = ViewState["Format"];  
    231.                 return o == null ? string.Empty : (string)o;  
    232.             }  
    233.             set { ViewState["Format"] = value; }  
    234.         }  
    235.   
    236.         #endregion  
    237.   
    238.         #region = NextPageImageUrl =  
    239.   
    240.         /// <summary>  
    241.         /// 下一页图片路径  
    242.         /// </summary>  
    243.         /// <value>The next page image URL.</value>  
    244.         [Description("下一页图片路径"), DefaultValue("")]  
    245.         public string NextPageImageUrl  
    246.         {  
    247.             get  
    248.             {  
    249.                 object o = ViewState["NextPageImageUrl"];  
    250.                 return o == null ? string.Empty : (string)o;  
    251.             }  
    252.             set { ViewState["NextPageImageUrl"] = value; }  
    253.         }  
    254.   
    255.         #endregion  
    256.   
    257.         #region = LastPageImageUrl =  
    258.   
    259.         private string _lastimage = string.Empty;  
    260.   
    261.         /// <summary>  
    262.         /// 上一页图片路径  
    263.         /// </summary>  
    264.         /// <value>The last page image URL.</value>  
    265.         [Description("上一页图片路径"), DefaultValue("")]  
    266.         public string LastPageImageUrl  
    267.         {  
    268.             get  
    269.             {  
    270.                 object o = ViewState["LastPageImageUrl"];  
    271.                 return o == null ? string.Empty : (string)o;  
    272.             }  
    273.             set { ViewState["LastPageImageUrl"] = value; }  
    274.         }  
    275.   
    276.         #endregion  
    277.   
    278.         #region = Mode =  
    279.   
    280.         [  
    281.             Category("Property"),  
    282.             Description("Pagebar的模式"),  
    283.             DefaultValue("")  
    284.         ]  
    285.         public PageBarMode Mode  
    286.         {  
    287.             get  
    288.             {  
    289.                 object o = ViewState["Mode"];  
    290.                 return o == null ? PageBarMode.Get : (PageBarMode)o;  
    291.             }  
    292.             set { ViewState["Mode"] = value; }  
    293.         }  
    294.   
    295.         #endregion  
    296.   
    297.         #region = ValidationGroup =  
    298.   
    299.         [Category("Behavior"), DefaultValue(""), Themeable(false), Description("PostBackControl_ValidationGroup")]  
    300.         public string ValidationGroup  
    301.         {  
    302.             get  
    303.             {  
    304.                 var text1 = (string)ViewState["ValidationGroup"];  
    305.                 if (text1 != null)  
    306.                 {  
    307.                     return text1;  
    308.                 }  
    309.                 return string.Empty;  
    310.             }  
    311.             set { ViewState["ValidationGroup"] = value; }  
    312.         }  
    313.   
    314.         #endregion  
    315.   
    316.         #region = CausesValidation =  
    317.   
    318.         /// <summary>  
    319.         /// 获取或设置一个值,该值指示在单击 LinkButton 控件时是否执行验证。   
    320.         /// </summary>  
    321.         /// <value><c>true</c> if [causes validation]; otherwise, <c>false</c>.</value>  
    322.         [Category("Behavior"), Themeable(false), Description("Button_CausesValidation"), DefaultValue(true)]  
    323.         public bool CausesValidation  
    324.         {  
    325.             get  
    326.             {  
    327.                 object obj1 = ViewState["CausesValidation"];  
    328.                 if (obj1 != null)  
    329.                 {  
    330.                     return (bool)obj1;  
    331.                 }  
    332.                 return true;  
    333.             }  
    334.             set { ViewState["CausesValidation"] = value; }  
    335.         }  
    336.   
    337.         #endregion  
    338.   
    339.         #region = Target =  
    340.   
    341.         /// <summary>  
    342.         /// Gets or sets the target.  
    343.         /// </summary>  
    344.         /// <value>The target.</value>  
    345.         [  
    346.             Category("Navigation"),  
    347.             TypeConverter(typeof(TargetConverter)),  
    348.             DefaultValue(""),  
    349.             Description("HyperLink_Target")]  
    350.         public string Target  
    351.         {  
    352.             get  
    353.             {  
    354.                 var text1 = (string)ViewState["Target"];  
    355.                 if (text1 != null)  
    356.                 {  
    357.                     return text1;  
    358.                 }  
    359.                 return "_self";  
    360.             }  
    361.             set { ViewState["Target"] = value; }  
    362.         }  
    363.   
    364.         #endregion  
    365.   
    366.         #endregion  
    367.   
    368.         #region - Event -  
    369.   
    370.         #region = OnClick =  
    371.   
    372.         private static readonly object EventClick = new object();  
    373.   
    374.         [Description("PageBar_OnClick"), Category("Action")]  
    375.         public event EventHandler Click  
    376.         {  
    377.             add { Events.AddHandler(EventClick, value); }  
    378.             remove { Events.RemoveHandler(EventClick, value); }  
    379.         }  
    380.   
    381.         #endregion  
    382.   
    383.         #endregion  
    384.   
    385.         #region = OnPreRender =  
    386.   
    387.         /// <summary>  
    388.         /// Raises the <see cref="E:System.Web.UI.Control.PreRender"></see> event.  
    389.         /// </summary>  
    390.         /// <param name="e">An <see cref="T:System.EventArgs"></see> object that contains the event data.</param>  
    391.         protected override void OnPreRender(EventArgs e)  
    392.         {  
    393.             base.OnPreRender(e);  
    394.   
    395.             string cssKey = "PageBarCss";  
    396.   
    397.             if (Page == null || Page.Header == null)  
    398.             {  
    399.                 return;  
    400.             }  
    401.             if (string.IsNullOrEmpty(CssClass))  
    402.             {  
    403.                 CssClass = "PageBar";  
    404.             }  
    405.             if (Page.Header.FindControl(cssKey) == null && CssClass == "PageBar")  
    406.             {  
    407.                 string css = Page.ClientScript.GetWebResourceUrl(GetType(), "Uni2Uni.ERP.Common.PageBar.PageBar.css");  
    408.                 var hl = new HtmlLink();  
    409.                 hl.ID = cssKey;  
    410.                 hl.Href = css;  
    411.                 hl.Attributes["type"] = "text/css";  
    412.                 hl.Attributes["rel"] = "stylesheet";  
    413.   
    414.                 //this.Page.Header.Controls.Add(hl);  
    415.   
    416.                 CssClass = "PageBar";  
    417.             }  
    418.         }  
    419.   
    420.         #endregion  
    421.   
    422.         #region = RenderContents =  
    423.   
    424.         /// <summary>  
    425.         /// Renders the contents of the control to the specified writer. This method is used primarily by control developers.  
    426.         /// </summary>  
    427.         /// <param name="writer"><see cref="T:System.Web.UI.HtmlTextWriter"></see> that represents the output stream to render HTML content on the client.</param>  
    428.         protected override void RenderContents(HtmlTextWriter writer)  
    429.         {  
    430.             base.RenderContents(writer);  
    431.   
    432.             #region - Valid -  
    433.   
    434.             if (IsEnabled == false)  
    435.             {  
    436.                 return;  
    437.             }  
    438.   
    439.             if (Size == 0 || Displaysize == 0)  
    440.             {  
    441.                 return;  
    442.             }  
    443.   
    444.             #endregion  
    445.   
    446.             if (Total > 0 && CurrentIndex > 0)  
    447.             {  
    448.                 double dPageCount = 1.0 * Total / Size;  
    449.                 int PageCount = Convert.ToInt32(Math.Ceiling(dPageCount)); //共多少页  
    450.   
    451.                 PostBackOptions options = GetPostBackOptions("{0}");  
    452.                 string srt = Page.ClientScript.GetPostBackEventReference(options, true);  
    453.   
    454.                 //---【新添加】  
    455.                 //只能输入正整数  
    456.                 string js = "<script type="text/javascript">var postbackstring="" + srt + "";var total=" + PageCount + "; function PositiveInteger(element, keyCode) {if (keyCode == 9 || keyCode == 116 || (keyCode >= 35 && keyCode <= 40)) {return true;}if ($(element).val().length == 0 && (keyCode == 96 || keyCode==48)){return false;}return (keyCode >= 96 && keyCode <= 105 || keyCode == 8 || (keyCode >= 48 && keyCode <= 57));}function validatePage(element){if($("#goPage").val()==""){alert("请输入跳转页数。");return false;}if($("#goPage").val()>total){alert("跳转页数不能大于总页数。");return false;}$(element).attr("href",postbackstring.replace("{0}",$("#goPage").val()));return true;}</script>";  
    457.                 writer.Write(js);  
    458.   
    459.                 if (CurrentIndex > PageCount)  
    460.                 {  
    461.                     CurrentIndex = PageCount;  
    462.                 }  
    463.   
    464.                 //总共2784主题  
    465.                 writer.Write(PageBarResource.Total);  
    466.                 //writer.Write("总共");  
    467.                 writer.Write(" ");  
    468.                 writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    469.                 writer.Write(Total.ToString(Format));  
    470.                 writer.RenderEndTag();  
    471.                 writer.Write(Unit);  
    472.                 writer.Write(", ");  
    473.   
    474.                 writer.Write(PageBarResource.Page);  
    475.                 //writer.Write("当前");  
    476.                 writer.Write(" ");  
    477.                 writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    478.                 writer.Write(CurrentIndex.ToString(Format));  
    479.                 writer.RenderEndTag();  
    480.                 writer.Write("/");  
    481.                 writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    482.                 writer.Write(PageCount.ToString(Format));  
    483.                 writer.RenderEndTag();  
    484.   
    485.                 if (PageCount > 1)  
    486.                 {  
    487.                     writer.Write(",");  
    488.                     int PagerGroup = Convert.ToInt32(Math.Ceiling(1.0 * PageCount / Displaysize)); //共多少页组  
    489.                     int CurrentGroup = (CurrentIndex - 1) / Displaysize + 1; //当前页组  
    490.   
    491.                     int displaystart = (CurrentGroup - 1) * Displaysize + 1;  
    492.                     int displayend = displaystart + Displaysize;  
    493.   
    494.                     if (displayend > (PageCount + 1))  
    495.                     {  
    496.                         displayend = PageCount + 1;  
    497.                     }  
    498.   
    499.                     #region 显示后三的算法----------【新添加】  
    500.                     ////显示后三的算法----------【新添加】  
    501.                     //if (PageCount > Displaysize && CurrentIndex > Displaysize - 3)  
    502.                     //{  
    503.                     //    displaystart = CurrentIndex - (Displaysize - 4);  
    504.                     //    displayend = CurrentIndex + 4;  
    505.                     //    if (displayend - 1 >= PageCount)  
    506.                     //    {  
    507.                     //        displayend = PageCount + 1;  
    508.                     //    }  
    509.                     //}   
    510.                     #endregion  
    511.   
    512.   
    513.                     //显示中间的算法----------【新添加】  
    514.                     if (PageCount > Displaysize && CurrentIndex >= Displaysize - ((Displaysize / 2) - 1))  
    515.                     {  
    516.                         displaystart = CurrentIndex - (Displaysize - (Displaysize / 2));  
    517.                         displayend = CurrentIndex + (Displaysize / 2);  
    518.                         if (displayend - 1 >= PageCount)  
    519.                         {  
    520.                             displayend = PageCount + 1;  
    521.                         }  
    522.                     }  
    523.   
    524.                     //首页-------【新添加】  
    525.                     if (CurrentIndex != 1)  
    526.                     {  
    527.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    528.                         LinkText("【首页】", 1, writer);  
    529.                         writer.RenderEndTag();  
    530.                     }  
    531.                     else  
    532.                     {  
    533.                         //---【新添加】  
    534.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    535.                         writer.Write("【首页】");  
    536.                         writer.RenderEndTag();  
    537.                     }  
    538.                     //上一页  
    539.                     if (CurrentIndex > 1)  
    540.                     {  
    541.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    542.                         if (string.IsNullOrEmpty(LastPageImageUrl))  
    543.                         {  
    544.                             LinkText(PageBarResource.Previous, CurrentIndex - 1, writer);  
    545.                             //LinkText("【上一页】", this.CurrentIndex - 1, writer);  
    546.                         }  
    547.                         else  
    548.                         {  
    549.                             LinkText(  
    550.                                 "<img alt="" + PageBarResource.Previous + "" src="" + LastPageImageUrl + "" />",  
    551.                                 CurrentIndex - 1, writer);  
    552.                             //LinkText("<img alt="" +"【上一页】" + "" src="" + this.LastPageImageUrl + "" />", this.CurrentIndex - 1, writer);  
    553.                         }  
    554.                         writer.RenderEndTag();  
    555.                     }  
    556.                     else    
    557.                     {  
    558.                         //---【新添加】  
    559.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    560.                         writer.Write("【上一页】");  
    561.                         writer.RenderEndTag();  
    562.                     }  
    563.   
    564.                     //上一组  
    565.                     if (CurrentGroup > 1 || displaystart != 1)  
    566.                     {  
    567.                         writer.AddAttribute(HtmlTextWriterAttribute.Title, "上"+Displaysize+"页");  
    568.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    569.                         int index = CurrentIndex - Displaysize;  
    570.                         if (index < 1)  
    571.                         {  
    572.                             index = 1;  
    573.                         }  
    574.                         LinkText("<<", index, writer);  
    575.                         writer.RenderEndTag();  
    576.                     }  
    577.                     else  
    578.                     {  
    579.                         //---【新添加】  
    580.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    581.                         writer.Write("<<");  
    582.                         writer.RenderEndTag();  
    583.                     }  
    584.                     string attr = string.Empty;  
    585.   
    586.                     //显示数字  
    587.                     for (int i = displaystart; i < displayend; i++)  
    588.                     {  
    589.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    590.                         if (i != CurrentIndex)  
    591.                         {  
    592.                             LinkText(i.ToString() + " ", i, writer);  
    593.                         }  
    594.                         else  
    595.                         {  
    596.                             //当前页  
    597.                             writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    598.                             writer.Write(i + " ");  
    599.                             writer.RenderEndTag();  
    600.                         }  
    601.                         writer.RenderEndTag();  
    602.                     }  
    603.   
    604.                       
    605.                     //下一组  
    606.                     if (displayend - 1 < PageCount)  
    607.                     {  
    608.                         writer.AddAttribute(HtmlTextWriterAttribute.Title, "下" + Displaysize + "页");  
    609.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    610.                         int index = CurrentIndex + Displaysize;  
    611.                         if (index > PageCount)  
    612.                         {  
    613.                             index = PageCount;  
    614.                         }  
    615.                         LinkText(">>", index, writer);  
    616.                         writer.RenderEndTag();  
    617.                     }  
    618.                     else  
    619.                     {  
    620.                         //---【新添加】  
    621.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    622.                         writer.Write(">>");  
    623.                         writer.RenderEndTag();  
    624.                     }  
    625.   
    626.                     //下一页  
    627.                     if (CurrentIndex < PageCount)  
    628.                     {  
    629.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    630.                         if (string.IsNullOrEmpty(NextPageImageUrl))  
    631.                         {  
    632.                             LinkText(PageBarResource.Next, CurrentIndex + 1, writer);  
    633.                             //LinkText("【下一页】", this.CurrentIndex + 1, writer);  
    634.                         }  
    635.                         else  
    636.                         {  
    637.                             LinkText("<img alt="" + PageBarResource.Next + "" src="" + NextPageImageUrl + "" />",  
    638.                                      CurrentIndex + 1, writer);  
    639.                             //LinkText("<img alt="" + "【下一页】" + "" src="" + this.NextPageImageUrl + "" />", this.CurrentIndex + 1, writer);  
    640.                         }  
    641.                         writer.RenderEndTag();  
    642.                     }  
    643.                     else  
    644.                     {  
    645.                         //---【新添加】  
    646.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    647.                         writer.Write("【下一页】");  
    648.                         writer.RenderEndTag();  
    649.                     }  
    650.   
    651.                     //尾页-------【新添加】  
    652.                     if (CurrentIndex != PageCount)  
    653.                     {  
    654.                         writer.RenderBeginTag(HtmlTextWriterTag.Span);  
    655.                         LinkText("【尾页】", PageCount, writer);  
    656.                         writer.RenderEndTag();  
    657.                     }  
    658.                     else  
    659.                     {  
    660.                         //---【新添加】  
    661.                         writer.RenderBeginTag(HtmlTextWriterTag.Label);  
    662.                         writer.Write("【尾页】");  
    663.                         writer.RenderEndTag();  
    664.                     }  
    665.   
    666.   
    667.                     //跳转---【新添加】  
    668.                     if (PagerGroup > 1)  
    669.                     {  
    670.                         writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");  
    671.                         writer.AddAttribute(HtmlTextWriterAttribute.Id, "goPage");  
    672.                         writer.AddAttribute(HtmlTextWriterAttribute.Value, Text);  
    673.                         writer.AddAttribute("onkeydown", "return PositiveInteger(this,event.keyCode);");  
    674.                         writer.AddStyleAttribute(HtmlTextWriterStyle.Height, "10px");  
    675.                         writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "40px");  
    676.                         writer.AddStyleAttribute(HtmlTextWriterStyle.Position, "relative");  
    677.                         writer.AddStyleAttribute(HtmlTextWriterStyle.Top, "4px");  
    678.                         writer.AddAttribute(HtmlTextWriterAttribute.Maxlength, PageCount.ToString().Length.ToString());  
    679.                         writer.RenderBeginTag(HtmlTextWriterTag.Input);  
    680.                         writer.RenderEndTag();  
    681.   
    682.                         writer.AddAttribute("onclick", "return validatePage(this);");  
    683.                         writer.AddAttribute(HtmlTextWriterAttribute.Href, "javascript:void(0)");  
    684.                         writer.RenderBeginTag(HtmlTextWriterTag.A);  
    685.                         writer.Write("【跳转】");  
    686.                         writer.RenderEndTag();  
    687.                     }  
    688.   
    689.                 }  
    690.             }  
    691.             else  
    692.             {  
    693.                 Visible = false;  
    694.             }  
    695.         }  
    696.   
    697.         #endregion  
    698.   
    699.         #region - LinkText -  
    700.   
    701.         private void LinkText(string text, int index, HtmlTextWriter write)  
    702.         {  
    703.             var strHtml = new StringBuilder();  
    704.             //href  
    705.             if (Mode == PageBarMode.Get)  
    706.             {  
    707.                 #region = 获取和解析当前的url =  
    708.   
    709.                 if (string.IsNullOrEmpty(UrlFormatString))  
    710.                 {  
    711.                     strHtml.Append(UrlHelper.Current.Path);  
    712.                     strHtml.Append("?");  
    713.                     NameValueCollection querys = Page.Request.QueryString;  
    714.   
    715.                     foreach (string s in querys.Keys)  
    716.                     {  
    717.                         if (s != QueryStringKey)  
    718.                         {  
    719.                             strHtml.AppendFormat("{0}={1}&", s, Page.Server.UrlEncode(querys[s]));  
    720.                         }  
    721.                     }  
    722.   
    723.                     strHtml.AppendFormat("{0}={1}", QueryStringKey, index);  
    724.                 }  
    725.                 else  
    726.                 {  
    727.                     strHtml.AppendFormat(UrlFormatString, index);  
    728.                 }  
    729.   
    730.                 #endregion  
    731.             }  
    732.             else  
    733.             {  
    734.                 PostBackOptions options = GetPostBackOptions(index.ToString());  
    735.   
    736.                 string js = null;  
    737.                 if (options != null)  
    738.                 {  
    739.                     js = Page.ClientScript.GetPostBackEventReference(options, true);  
    740.                 }  
    741.                 if (string.IsNullOrEmpty(js))  
    742.                 {  
    743.                     js = "javascript:void(0)";  
    744.                 }  
    745.                 strHtml.Append(js);  
    746.             }  
    747.   
    748.             //text  
    749.             write.AddAttribute(HtmlTextWriterAttribute.Href, strHtml.ToString());  
    750.             if (Mode == PageBarMode.Get)  
    751.             {  
    752.                 write.AddAttribute(HtmlTextWriterAttribute.Target, Target);  
    753.             }  
    754.             write.RenderBeginTag(HtmlTextWriterTag.A);  
    755.             write.Write(text);  
    756.             write.RenderEndTag();  
    757.         }  
    758.   
    759.         #endregion  
    760.   
    761.         #region - GetPostBackOptions -  
    762.   
    763.         private PostBackOptions GetPostBackOptions(string index)  
    764.         {  
    765.             var options1 = new PostBackOptions(this, index);  
    766.             options1.RequiresJavaScriptProtocol = true;  
    767.   
    768.             if (CausesValidation && (Page.GetValidators(ValidationGroup).Count > 0))  
    769.             {  
    770.                 options1.PerformValidation = true;  
    771.                 options1.ValidationGroup = ValidationGroup;  
    772.             }  
    773.             return options1;  
    774.         }  
    775.   
    776.         #endregion  
    777.   
    778.         #region - OnClick -  
    779.   
    780.         private void OnClick(EventArgs e)  
    781.         {  
    782.             var handler1 = (EventHandler)base.Events[EventClick];  
    783.             if (handler1 != null)  
    784.             {  
    785.                 handler1(this, e);  
    786.             }  
    787.         }  
    788.   
    789.         #endregion  
    790.   
    791.         #region IPostBackEventHandler Members  
    792.   
    793.         public void RaisePostBackEvent(string eventArgument)  
    794.         {  
    795.             if (CausesValidation)  
    796.             {  
    797.                 Page.Validate(ValidationGroup);  
    798.             }  
    799.   
    800.             int _currentindex;  
    801.             if (int.TryParse(eventArgument, out _currentindex))  
    802.             {  
    803.                 CurrentIndex = _currentindex;  
    804.             }  
    805.   
    806.             OnClick(EventArgs.Empty);  
    807.         }  
    808.   
    809.         #endregion  
    810.     }  
    811.   
    812.     #endregion  
    813. }  


     

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  • 原文地址:https://www.cnblogs.com/web100/p/aspnet-PageBar.html
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