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  • 重写的GridView，支持CheckBox选择，DataTable和List排序,SQL分页等

    重新封装了一个 GridView，支持如下功能：

    1. CheckBox选择记录，指定CheckBox的位置
    2. 支持List，DataSet,Datatable 排序
    3. 排序时在Header部分出现图标
    4. 封装了PageIndexChanged 和DataBind，不用每页都写。
    5. 支持SQL分页和ApsNetPager等分页控件。

    注： 没有加入很多的功能，因为本身需要的就是一个轻量级的GridView，产生近可能少的代码。

    另：选择高亮功能是用JQuery实现的，因此使用时需要JQuery的运行库。

    代码1 ： 辅助对象，实现Sort排序。（其实这部分功能可以用LINQ来做，会简单很多，当这个类已经用了很久了，懒得改了）

     1 using System;
     2  using System.Collections;
     3  using System.Collections.Generic;
     4 using System.Reflection;
     5 
     6 namespace xxWare.xxControls
     7 {
     8     public class Reverser<T> : IComparer<T>
     9     {
    10         private Type _type = null;
    11         private ReverserInfo info;
    12 
    13         /// <summary>   
    14         /// 构造函数   
    15         /// </summary>   
    16         /// <param name="type">进行比较的类类型</param>   
    17         /// <param name="name">进行比较对象的属性名称</param>   
    18         /// <param name="direction">比较方向(升序/降序)</param>   
    19         public Reverser(Type _type, string _name, string _direction)
    20         {
    21             this._type = _type;
    22             this.info.name = _name;
    23             this.info.direction = _direction.ToLower();
    24         }
    25 
    26         /// <summary>   
    27         /// 构造函数   
    28         /// </summary>   
    29         /// <param name="className">进行比较的类名称</param>   
    30         /// <param name="name">进行比较对象的属性名称</param>   
    31         /// <param name="direction">比较方向(升序/降序)</param>   
    32         public Reverser(string _className, string _name, string _direction)
    33         {
    34             try
    35             {
    36                 this._type = Type.GetType(_className, true);
    37                 this.info.name = _name;
    38                 this.info.direction = _direction.ToLower();
    39             }
    40             catch (Exception e)
    41             {
    42                 throw new Exception(e.Message);
    43             }
    44 
    45         }
    46 
    47         /// <summary>   
    48         /// 构造函数   
    49         /// </summary>   
    50         /// <param name="t">进行比较的类型的实例</param>   
    51         /// <param name="name">进行比较对象的属性名称</param>   
    52         /// <param name="direction">比较方向(升序/降序)</param>   
    53         public Reverser(T _t, string _name, string _direction)
    54         {
    55             this._type = _t.GetType();
    56             this.info.name = _name;
    57             this.info.direction = _direction;
    58         }
    59 
    60         int IComparer<T>.Compare(T t1, T t2)
    61         {
    62             object x = this._type.InvokeMember(this.info.name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, t1, null);
    63             object y = this._type.InvokeMember(this.info.name, BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty, null, t2, null);
    64 
    65             if (this.info.direction != "asc")
    66                 Swap(ref x, ref y);
    67             return (new CaseInsensitiveComparer()).Compare(x, y);
    68         }
    69 
    70         void Swap(ref object x, ref object y)
    71         {
    72             object tmp = x;
    73             x = y;
    74             y = tmp;
    75         }
    76     }
    77     public struct ReverserInfo
    78     {
    79         public enum Target
    80         {
    81             Customer = 0,
    82             From,
    83             Field,
    84             Server
    85         }
    86 
    87         public string name;
    88         public string direction; // asc , desc ;
    89         public Target target;
    90     }
    91 }

    代码2： Template类，用于生成CheckBox列

     1 using System;
     2 using System.Web;
     3 using System.Web.UI;
     4 using System.Web.UI.WebControls;
     5 
     6 namespace xxWare.xxControls
     7 {
     8     #region Selector Template
     9     public class xxGridColumnTemplate : ITemplate
    10     {
    11         public void InstantiateIn(Control container)
    12         {
    13             CheckBox cb = new CheckBox();
    14             cb.ID = "FarGV_ColumnSelector";
    15             cb.ClientIDMode = ClientIDMode.AutoID;
    16             cb.CssClass = "far_rowsselector";
    17             container.Controls.AddAt(0, cb);
    18         }
    19     }
    20 
    21     public class xxGridHeaderTemplate : ITemplate
    22     {
    23         public void InstantiateIn(Control container)
    24         {
    25             System.Web.UI.HtmlControls.HtmlInputCheckBox selectAll = new System.Web.UI.HtmlControls.HtmlInputCheckBox();
    26             selectAll.ID = "FarGV_ColumnSelectorAll";
    27             selectAll.ClientIDMode = ClientIDMode.Static;
    28             selectAll.Attributes["onclick"] = "FarGridView_ColumnSelectorAll();";
    29             container.Controls.Add(selectAll);
    30         }
    31     }
    32 
    33     #endregion
    34 
    35 }

    主代码： 加了一个属性 AutoSort,当使用SQL分页是，设置为 False即可

    view sourceprint?
    001 using System;
    002 using System.Collections.Generic;
    003 using System.ComponentModel;
    004 using System.Data;
    005 using System.Web;
    006 using System.Web.UI;
    007 using System.Web.UI.WebControls;
    008 using System.Reflection;
    009   
    010 namespace xxWare.xxControls
    011 {
    012     [ToolboxData("<{0}:xxGridView runat=server></{0}:xxGridView>")]
    013     public class xxGridView : System.Web.UI.WebControls.GridView
    014     {
    015         #region Properties
    016         // sort image url : full url = Sort_Image_Url + Asc_Image_Name
    017         [Browsable(true) , Category("Sort Image"), DefaultValue("images/arrow_up.gif") , Description("Asc Image")]
    018         public string Asc_Image { get; set; }
    019         [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_down.gif"), Description("Desc Image")]
    020         public string Desc_Image { get; set; }
    021         [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_updn.gif"), Description("Sortable Image")]
    022         public string Sort_Image { get; set; }
    023   
    024         //Property : SortExpression
    025         [Browsable(false)]
    026         public string CurrentSortExpression
    027         {
    028             get { return Convert.ToString(ViewState["CurrentSortExpression"]); }
    029             set { ViewState["CurrentSortExpression"] = value.Trim(); }
    030         }
    031         [Browsable(false)]
    032         public string CurrentSortDirection
    033         {
    034             get  { return Convert.ToString(ViewState["CurrentSortDirection"]); }
    035             set
    036             {
    037                 if (string.IsNullOrEmpty(value))
    038                 {
    039                     ViewState["CurrentSortDirection"] = "desc";
    040                 }
    041                 else
    042                 {
    043                     if (value.ToLower() != "asc" && value.ToLower() != "desc")
    044                     {
    045                         ViewState["CurrentSortDirection"] = "desc";
    046                     }
    047                     else
    048                     {
    049                         ViewState["CurrentSortDirection"] = value.ToString().ToLower();
    050                     }
    051                 }
    052             }
    053         }
    054   
    055         //Property : Multi Show CheckBox
    056         [Category("MultiSelect") , DefaultValue("True")]
    057         public bool AllowMultiSelect
    058         {
    059             get { return bool.Parse(ViewState["AllowMultiSelect"].ToString()); }
    060             set { ViewState["AllowMultiSelect"] = value.ToString(); }
    061         }
    062         [Category("MultiSelect"), DefaultValue(0)]
    063         public int AllowMultiSelectColumn
    064         {
    065             get { return Int32.Parse(ViewState["AllowMultiSelectColumn"].ToString()); }
    066             set { ViewState["AllowMultiSelectColumn"] = value.ToString(); }
    067         }
    068         /*
    069         public string RowSelectFilter
    070         {
    071             get { return (string)ViewState["RowSelectFilter"]; }
    072             set { ViewState["RowSelectFilter"] = value.ToString(); }
    073         }
    074          * */
    075         //Property : Get Selected Items
    076         [Browsable(false)]
    077         public List<GridViewRow> MultiSelectedItem
    078         {
    079             get
    080             {
    081                 if (!AllowMultiSelect) return null;
    082   
    083                 List<GridViewRow> selectedRows = new List<GridViewRow>();
    084                 foreach (GridViewRow row in this.Rows)
    085                 {
    086                     CheckBox cb = (CheckBox)row.Cells[AllowMultiSelectColumn].Controls[0];
    087                     if (cb.Checked)
    088                     {
    089                         selectedRows.Add(row);
    090                     }
    091                 }
    092   
    093                 return selectedRows;
    094             }
    095         }
    096   
    097         //Define DataSource
    098         private object sourcedata;
    099         public object DataSetSource
    100         {
    101             get 
    102             {
    103                 if (sourcedata != null)
    104                     return sourcedata;
    105                 else
    106                     return null;
    107             }
    108             set
    109             {
    110                 sourcedata = value as object;
    111             }
    112         }
    113   
    114         //record count: readonly
    115         private int _recordCount = 0;
    116         [Browsable(false)]
    117         public int RecordCount
    118         {
    119             get { return _recordCount; }
    120         }
    121   
    122         //AutoSort : True/False , set to False when use 3rd pager control and Sql Pager , e.g. AspNetPager, DataPager ...
    123         [Browsable(true), Category("Misc"), DefaultValue("True"), Description("Auto Pager")]
    124         public bool AutoSort { get; set; }
    125   
    126         #endregion
    127   
    128         private ClientScriptManager csManager;
    129   
    130         public xxGridView() : base()
    131         {
    132             AllowPaging = false;
    133             AllowSorting = true;
    134   
    135             AutoSort = false;
    136             //GridLines = GridLines.Horizontal;
    137             //BorderWidth = (Unit)0;
    138   
    139             // Sort Images Default
    140             Asc_Image = @"images/arrow_up.gif";
    141             Desc_Image = @"images/arrow_down.gif";
    142             Sort_Image = @"images/arrow_updn.gif";
    143   
    144             //set event handlers
    145             Init += new EventHandler(On_Init);
    146             Sorting += new GridViewSortEventHandler(On_Sorting);
    147             RowCreated += new GridViewRowEventHandler(On_RowCreated);
    148         }
    149   
    150         #region Event Handlers
    151         public event EventHandler GridBindEvent;
    152         public virtual void OnGridBind<T>()
    153         {
    154             if (sourcedata!=null)
    155             {
    156                 if (CurrentSortExpression==string.Empty)
    157                 {
    158                     this.DataSource = sourcedata;
    159                     this.DataBind();
    160                     return;
    161                 }
    162   
    163                 //Datasource Type
    164                 if (sourcedata is DataTable)
    165                 {
    166                     DataView dv = (sourcedata as DataTable).DefaultView;
    167                     if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
    168                         dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
    169   
    170                     this.DataSource = dv;
    171                     _recordCount = dv.Count;
    172                     try
    173                     {
    174                         this.DataBind();
    175                     }
    176                     catch 
    177                     {
    178                         if (this.PageIndex>1)
    179                         {
    180                             this.PageIndex--;
    181                             this.DataBind();
    182                         }
    183                     }
    184                       
    185                 }
    186                 else if (sourcedata is DataSet)
    187                 {
    188                     DataView dv = (sourcedata as DataSet).Tables[0].DefaultView;
    189                     if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
    190                         dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
    191   
    192                     this.DataSource = dv;
    193                     _recordCount = dv.Count;
    194                     try
    195                     {
    196                         this.DataBind();
    197                     }
    198                     catch
    199                     {
    200                         if (this.PageIndex > 1)
    201                         {
    202                             this.PageIndex--;
    203                             this.DataBind();
    204                         }
    205                     }
    206                 }
    207                 else if (sourcedata is List<T>)
    208                 {
    209                     if (!string.IsNullOrEmpty(CurrentSortExpression) && AutoSort)
    210                     {
    211                         Reverser<T> reverser = new Reverser<T>(typeof(T), CurrentSortExpression, CurrentSortDirection);
    212                         (sourcedata as List<T>).Sort(reverser);
    213                     }
    214   
    215                     this.DataSource = sourcedata;
    216                     _recordCount = (sourcedata as List<T>).Count;
    217                     try
    218                     {
    219                         this.DataBind();
    220                     }
    221                     catch
    222                     {
    223                         if (this.PageIndex > 1)
    224                         {
    225                             this.PageIndex--;
    226                             this.DataBind();
    227                         }
    228                     }
    229                 }
    230             } 
    231               
    232         }
    233   
    234         public void On_Init(object sender, EventArgs e)
    235         {
    236             // processing multi-select
    237             if (ViewState["AllowMultiSelect"]==null || ViewState["AllowMultiSelect"].ToString().Trim()=="")
    238                 ViewState["AllowMultiSelect"] = "True";
    239             if (ViewState["AllowMultiSelectColumn"] == null || ViewState["AllowMultiSelectColumn"].ToString().Trim() == "")
    240                 ViewState["AllowMultiSelectColumn"] = "0";
    241   
    242             csManager = this.Page.ClientScript;
    243             if (AllowMultiSelect)
    244             {
    245                 AddSelectColumn();
    246                 RegisterJS();
    247             }
    248   
    249             // processing sorting...
    250             if (CurrentSortDirection == null || CurrentSortDirection.Trim() == "")
    251                 CurrentSortDirection = "desc";
    252             if (CurrentSortExpression == null) CurrentSortDirection = "";
    253         }
    254   
    255         public void On_Sorting(object sender , GridViewSortEventArgs e)
    256         {
    257             CurrentSortExpression = e.SortExpression;
    258             if (CurrentSortDirection == "desc")
    259                 CurrentSortDirection = "asc";
    260             else
    261                 CurrentSortDirection = "desc";
    262   
    263             GridBindEvent(this , EventArgs.Empty);
    264         }
    265   
    266         public void On_RowCreated(object sender , GridViewRowEventArgs e)
    267         {
    268             string currentSortImage = "";
    269             if (e.Row.RowType==DataControlRowType.Header)
    270             {
    271                 foreach (DataControlField field in this.Columns)
    272                 {
    273                     if (!String.IsNullOrEmpty(field.SortExpression))
    274                     {
    275                         if (IsSortedByThisField(field.SortExpression))
    276                         {
    277                             currentSortImage = (CurrentSortDirection == "asc") ? Asc_Image : Desc_Image;
    278                         }
    279                         else
    280                         {
    281                             currentSortImage = Sort_Image;
    282                         }
    283                         AddSortImage(e.Row, this.Columns.IndexOf(field), currentSortImage);
    284                     }
    285                 }
    286             }
    287         }
    288   
    289         #endregion
    290   
    291         #region Override Methods
    292         protected override void OnPageIndexChanging(GridViewPageEventArgs e)
    293         {
    294             //base.OnPageIndexChanging(e);
    295             this.PageIndex = e.NewPageIndex;
    296             GridBindEvent(this, EventArgs.Empty);
    297         }
    298         #endregion
    299   
    300         #region private helper function
    301         // For Sort
    302         private void AddSortImage(GridViewRow _row, int _colIndex ,string _currImage)
    303         {
    304             if (-1 == _colIndex) return;
    305   
    306             Image sortImage = new Image();
    307             sortImage.ImageUrl = _currImage;
    308             _row.Cells[_colIndex].Controls.AddAt(1, sortImage);
    309         }
    310   
    311         private bool IsSortedByThisField(String strSortExpression)
    312         {
    313             return CurrentSortExpression.ToLower() == strSortExpression.Trim().ToLower();
    314         }
    315           
    316         // for Multi Select
    317         private void AddSelectColumn()
    318         {
    319             TemplateField tc = new TemplateField();
    320             tc.ItemTemplate = new xxGridColumnTemplate();
    321             tc.HeaderTemplate = new xxGridHeaderTemplate();
    322   
    323             this.Columns.Insert(AllowMultiSelectColumn, tc);
    324         }
    325         private void RegisterJS()
    326         {
    327             /*
    328             System.Resources.ResourceManager rm = new System.Resources.ResourceManager("FarGridView", Assembly.GetExecutingAssembly());
    329             string _script = rm.GetString("js_selectall");
    330   
    331             if (!csManager.IsClientScriptBlockRegistered(this.GetType() , "js_selectall"))
    332             {
    333                 csManager.RegisterClientScriptBlock(this.GetType(), "js_selectall", _script);
    334             }
    335             */
    336   
    337             csManager.RegisterClientScriptResource(this.GetType(), "xxWare.xxControls.xxGridViewJS.js");
    338         }
    339   
    340         #endregion
    341   
    342     }
    343 }

    源码下载（带Demo）

    重新封装了一个 GridView，支持如下功能：

    1. CheckBox选择记录，指定CheckBox的位置
    2. 支持List，DataSet,Datatable 排序
    3. 排序时在Header部分出现图标
    4. 封装了PageIndexChanged 和DataBind，不用每页都写。

      1 using System;
      2  using System.Collections.Generic;
      3  using System.ComponentModel;
      4 using System.Data;
      5 using System.Web;
      6 using System.Web.UI;
      7 using System.Web.UI.WebControls;
      8 using System.Reflection;
      9 
     10 namespace xxWare.xxControls
     11 {
     12     [ToolboxData("<{0}:xxGridView runat=server></{0}:xxGridView>")]
     13     public class xxGridView : System.Web.UI.WebControls.GridView
     14     {
     15         #region Properties
     16         // sort image url : full url = Sort_Image_Url + Asc_Image_Name
     17         [Browsable(true) , Category("Sort Image"), DefaultValue("images/arrow_up.gif") , Description("Asc Image")]
     18         public string Asc_Image { get; set; }
     19         [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_down.gif"), Description("Desc Image")]
     20         public string Desc_Image { get; set; }
     21         [Browsable(true), Category("Sort Image"), DefaultValue("images/arrow_updn.gif"), Description("Sortable Image")]
     22         public string Sort_Image { get; set; }
     23 
     24         //Property : SortExpression
     25         [Browsable(false)]
     26         public string CurrentSortExpression
     27         {
     28             get { return Convert.ToString(ViewState["CurrentSortExpression"]); }
     29             set { ViewState["CurrentSortExpression"] = value.Trim(); }
     30         }
     31         [Browsable(false)]
     32         public string CurrentSortDirection
     33         {
     34             get  { return Convert.ToString(ViewState["CurrentSortDirection"]); }
     35             set
     36             {
     37                 if (string.IsNullOrEmpty(value))
     38                 {
     39                     ViewState["CurrentSortDirection"] = "desc";
     40                 }
     41                 else
     42                 {
     43                     if (value.ToLower() != "asc" && value.ToLower() != "desc")
     44                     {
     45                         ViewState["CurrentSortDirection"] = "desc";
     46                     }
     47                     else
     48                     {
     49                         ViewState["CurrentSortDirection"] = value.ToString().ToLower();
     50                     }
     51                 }
     52             }
     53         }
     54 
     55         //Property : Multi Show CheckBox
     56         [Category("MultiSelect") , DefaultValue("True")]
     57         public bool AllowMultiSelect
     58         {
     59             get { return bool.Parse(ViewState["AllowMultiSelect"].ToString()); }
     60             set { ViewState["AllowMultiSelect"] = value.ToString(); }
     61         }
     62         [Category("MultiSelect"), DefaultValue(0)]
     63         public int AllowMultiSelectColumn
     64         {
     65             get { return Int32.Parse(ViewState["AllowMultiSelectColumn"].ToString()); }
     66             set { ViewState["AllowMultiSelectColumn"] = value.ToString(); }
     67         }
     68         /*
     69         public string RowSelectFilter
     70         {
     71             get { return (string)ViewState["RowSelectFilter"]; }
     72             set { ViewState["RowSelectFilter"] = value.ToString(); }
     73         }
     74          * */
     75         //Property : Get Selected Items
     76         [Browsable(false)]
     77         public List<GridViewRow> MultiSelectedItem
     78         {
     79             get
     80             {
     81                 if (!AllowMultiSelect) return null;
     82 
     83                 List<GridViewRow> selectedRows = new List<GridViewRow>();
     84                 foreach (GridViewRow row in this.Rows)
     85                 {
     86                     CheckBox cb = (CheckBox)row.Cells[AllowMultiSelectColumn].Controls[0];
     87                     if (cb.Checked)
     88                     {
     89                         selectedRows.Add(row);
     90                     }
     91                 }
     92 
     93                 return selectedRows;
     94             }
     95         }
     96 
     97         //Define DataSource
     98         private object sourcedata;
     99         public object DataSetSource
    100         {
    101             get 
    102             {
    103                 if (sourcedata != null)
    104                     return sourcedata;
    105                 else
    106                     return null;
    107             }
    108             set
    109             {
    110                 sourcedata = value as object;
    111             }
    112         }
    113 
    114         #endregion
    115 
    116         private ClientScriptManager csManager;
    117 
    118         public xxGridView() : base()
    119         {
    120             AllowPaging = false;
    121             AllowSorting = true;
    122             //GridLines = GridLines.Horizontal;
    123             //BorderWidth = (Unit)0;
    124 
    125             // Sort Images Default
    126             Asc_Image = @"images/arrow_up.gif";
    127             Desc_Image = @"images/arrow_down.gif";
    128             Sort_Image = @"images/arrow_updn.gif";
    129 
    130             //set event handlers
    131             Init += new EventHandler(On_Init);
    132             Sorting += new GridViewSortEventHandler(On_Sorting);
    133             RowCreated += new GridViewRowEventHandler(On_RowCreated);
    134         }
    135 
    136         #region Event Handlers
    137         public event EventHandler GridBindEvent;
    138         public virtual void OnGridBind<T>()
    139         {
    140             if (sourcedata!=null)
    141             {
    142                 if (CurrentSortExpression==string.Empty)
    143                 {
    144                     this.DataSource = sourcedata;
    145                     this.DataBind();
    146                     return;
    147                 }
    148 
    149                 //Datasource Type
    150                 if (sourcedata is DataTable)
    151                 {
    152                     DataView dv = (sourcedata as DataTable).DefaultView;
    153                     if (!string.IsNullOrEmpty(CurrentSortExpression))
    154                         dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
    155 
    156                     this.DataSource = dv;
    157                     this.DataBind();
    158                 }
    159                 else if (sourcedata is DataSet)
    160                 {
    161                     DataView dv = (sourcedata as DataSet).Tables[0].DefaultView;
    162                     if (!string.IsNullOrEmpty(CurrentSortExpression))
    163                         dv.Sort = CurrentSortExpression + " " + CurrentSortDirection;
    164 
    165                     this.DataSource = dv;
    166                     this.DataBind();
    167                 }
    168                 else if (sourcedata is List<T>)
    169                 {
    170                     if (!string.IsNullOrEmpty(CurrentSortExpression))
    171                     {
    172                         Reverser<T> reverser = new Reverser<T>(typeof(T), CurrentSortExpression, CurrentSortDirection);
    173                         (sourcedata as List<T>).Sort(reverser);
    174                     }
    175 
    176                     this.DataSource = sourcedata;
    177                     this.DataBind();
    178                 }
    179             } 
    180             
    181         }
    182 
    183         public void On_Init(object sender, EventArgs e)
    184         {
    185             // processing multi-select
    186             if (ViewState["AllowMultiSelect"]==null || ViewState["AllowMultiSelect"].ToString().Trim()=="")
    187                 ViewState["AllowMultiSelect"] = "True";
    188             if (ViewState["AllowMultiSelectColumn"] == null || ViewState["AllowMultiSelectColumn"].ToString().Trim() == "")
    189                 ViewState["AllowMultiSelectColumn"] = "0";
    190 
    191             csManager = this.Page.ClientScript;
    192             if (AllowMultiSelect)
    193             {
    194                 AddSelectColumn();
    195                 RegisterJS();
    196             }
    197 
    198             // processing sorting...
    199             if (CurrentSortDirection == null || CurrentSortDirection.Trim() == "")
    200                 CurrentSortDirection = "desc";
    201             if (CurrentSortExpression == null) CurrentSortDirection = "";
    202         }
    203 
    204         public void On_Sorting(object sender , GridViewSortEventArgs e)
    205         {
    206             CurrentSortExpression = e.SortExpression;
    207             if (CurrentSortDirection == "desc")
    208                 CurrentSortDirection = "asc";
    209             else
    210                 CurrentSortDirection = "desc";
    211 
    212             GridBindEvent(this , EventArgs.Empty);
    213         }
    214 
    215         public void On_RowCreated(object sender , GridViewRowEventArgs e)
    216         {
    217             string currentSortImage = "";
    218             if (e.Row.RowType==DataControlRowType.Header)
    219             {
    220                 foreach (DataControlField field in this.Columns)
    221                 {
    222                     if (!String.IsNullOrEmpty(field.SortExpression))
    223                     {
    224                         if (IsSortedByThisField(field.SortExpression))
    225                         {
    226                             currentSortImage = (CurrentSortDirection == "asc") ? Asc_Image : Desc_Image;
    227                         }
    228                         else
    229                         {
    230                             currentSortImage = Sort_Image;
    231                         }
    232                         AddSortImage(e.Row, this.Columns.IndexOf(field), currentSortImage);
    233                     }
    234                 }
    235             }
    236         }
    237 
    238         #endregion
    239 
    240         #region Override Methods
    241         protected override void OnPageIndexChanging(GridViewPageEventArgs e)
    242         {
    243             //base.OnPageIndexChanging(e);
    244             this.PageIndex = e.NewPageIndex;
    245             GridBindEvent(this, EventArgs.Empty);
    246         }
    247         #endregion
    248 
    249         #region private helper function
    250         // For Sort
    251         private void AddSortImage(GridViewRow _row, int _colIndex ,string _currImage)
    252         {
    253             if (-1 == _colIndex) return;
    254 
    255             Image sortImage = new Image();
    256             sortImage.ImageUrl = _currImage;
    257             _row.Cells[_colIndex].Controls.AddAt(1, sortImage);
    258         }
    259 
    260         private bool IsSortedByThisField(String strSortExpression)
    261         {
    262             return CurrentSortExpression.ToLower() == strSortExpression.Trim().ToLower();
    263         }
    264         
    265         // for Multi Select
    266         private void AddSelectColumn()
    267         {
    268             TemplateField tc = new TemplateField();
    269             tc.ItemTemplate = new FarGridColumnTemplate();
    270             tc.HeaderTemplate = new FarGridHeaderTemplate();
    271 
    272             this.Columns.Insert(AllowMultiSelectColumn, tc);
    273         }
    274         private void RegisterJS()
    275         {
    276             /*
    277             System.Resources.ResourceManager rm = new System.Resources.ResourceManager("xxGridView", Assembly.GetExecutingAssembly());
    278             string _script = rm.GetString("js_selectall");
    279 
    280             if (!csManager.IsClientScriptBlockRegistered(this.GetType() , "js_selectall"))
    281             {
    282                 csManager.RegisterClientScriptBlock(this.GetType(), "js_selectall", _script);
    283             }
    284             */
    285 
    286             csManager.RegisterClientScriptResource(this.GetType(), "xxWare.xxControls.xxGridViewJS.js");
    287         }
    288 
    289         #endregion
    290 
    291     }
    292 }

    还有一些如： MultiSelectFilter 等有时间再完善
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  • 原文地址：https://www.cnblogs.com/Leo_wl/p/2036094.html
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