一、自定义控件之CheckBoxList

因需求不同

最近公司项目要求开发自定义控件，看了些前辈的代码……现在结合自己的项目。

                   自定义CheckBoxList 主要功能： 全选功能、获取任一checkbox的Text或者Value值

后台CS:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.UI;
using System.ComponentModel;

namespace FumaCRM_BS.WebControls
{
    #region CheckBoxList
    /// <summary>
    /// 多项选择复选框组
    /// </summary>
    [DefaultProperty("Text")]
    [ToolboxData("<{0}:FBSCheckBoxList runat=server></{0}:FBSCheckBoxList>")]
    public class FBSCheckBoxList : System.Web.UI.WebControls.CheckBoxList
    {
        private const char SEPARATOR = '|';//分隔符

        #region Field
        private bool selectAll;//全选 
        #endregion 
        [Category("Appearance"), Browsable(true), Description("是否全选"), DefaultValue(false)]
        public bool SelectAll
        {
            set
            {
                selectAll = value;
            }
            get
            {
                return selectAll;
            }
        }
        /// <summary>
        /// 选中项的Text值
        /// </summary>
        [Category("Appearance"), Browsable(true), Description(" 选中项的Text值"), DefaultValue("")]
        public string NewSelectedText
        {
            set
            {
                //newSelectText = value;
                if (value != null && value != string.Empty && value != "")
                {
                    this.SelectedIndex = -1;
                    //重新选择
                    string[] textList = value.Split(new char[] { SEPARATOR });
                    for (int i = 0; i < textList.Length; i++)
                    {
                        for (int j = 0; j < this.Items.Count; j++)
                        {
                            if (this.Items[j].Text == textList[i])
                            {
                                this.Items[j].Selected = true;
                            }
                        }
                    }
                }
            }
            get
            {
                //return newSelectText;
                string textList = string.Empty;
                for (int i = 0; i < this.Items.Count; i++)
                {
                    if (this.Items[i].Selected == true)
                    {
                        textList += this.Items[i].Text + SEPARATOR.ToString();
                    }
                }
                if (textList != string.Empty)
                {
                    return textList.Substring(0, textList.Length - 1);
                }
                else
                {
                    return textList;
                }
            }
        }

        /// <summary>
        /// 属性:选中项的Value值
        /// </summary>
        [Category("Appearance"), Browsable(true), Description(" 选中项的Value值"), DefaultValue("")]
        public string NewSelectedValue
        {
            set
            {
                if (value != null && value != string.Empty && value != "")
                {
                    this.SelectedIndex = -1;
                    //重新选择
                    string[] valueList = value.Split(new char[] { SEPARATOR });
                    for (int i = 0; i < valueList.Length; i++)
                    {
                        for (int j = 0; j < this.Items.Count; j++)
                        {
                            if (this.Items[j].Value == valueList[i])
                            {
                                this.Items[j].Selected = true;
                            }
                        }
                    }
                }
            }
            get
            {
                string valueList = string.Empty;
                for (int i = 0; i < this.Items.Count; i++)
                {
                    if (this.Items[i].Selected == true)
                    {
                        valueList += this.Items[i].Value + SEPARATOR.ToString();
                    }
                }
                if (valueList != string.Empty)
                {
                    return valueList.Substring(0, valueList.Length - 1);
                }
                else
                {
                    return valueList;
                }
            }
        }

        protected override void OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);
            if (selectAll)
            {
                for (int i = 0; i < this.Items.Count; i++)
                {
                    Items[i].Selected = true;
                }
            }
            else
            {
                for (int i = 0; i < this.Items.Count; i++)
                {
                    if (Items[i].Selected)
                        Items[i].Selected = true;
                    else
                        Items[i].Selected = false;
                }
            }
        }
        protected override void Render(HtmlTextWriter writer)
        {
            base.Render(writer); 
        }
    } 
    #endregion
}

前台aspx 同行在工具中 右键 选择项  引入刚才编译好的dll

直接拖拽到aspx中即可 代码如下

<form id="form1" runat="server">
    <div>
        <asp:Panel ID="Panel1" runat="server">
            <cc1:FBSValidateBox ID="FBSValidateBox1" Max="3" Min="1" runat="server"></cc1:FBSValidateBox>
        </asp:Panel>
        <Upload:FBSUpload runat="server" />
    </div>
    <div style="margin: 10px 0;">
        <a href="#" class="easyui-linkbutton" onclick="loadData()">LoadData</a> <a href="#"
            class="easyui-linkbutton" onclick="setValue()">SetValue</a> <a href="#" class="easyui-linkbutton"
                onclick="getValue()">GetValue</a> <a href="#" class="easyui-linkbutton" onclick="disable()">
                    Disable</a> <a href="#" class="easyui-linkbutton" onclick="enable()">Enable</a>
    </div>
    <select id="cc" class="easyui-combobox" name="state" style=" 200px;" required="true">
        <option value="AL">Alabama</option>
        <option value="AK">Alaska</option>
        <option value="AZ">Arizona</option>
        <option value="AR">Arkansas</option>
        <option value="CA">California</option>
        <option value="CO">Colorado</option>
        <option value="CT">Connecticut</option>
        <option value="DE">Delaware</option>
        <option value="FL">Florida</option>
        <option value="GA">Georgia</option>
        <option value="HI">Hawaii</option>
        <option value="ID">Idaho</option>
        <option value="IL">Illinois</option>
        <option value="IN">Indiana</option>
        <option value="IA">Iowa</option>
        <option value="KS">Kansas</option>
        <option value="KY">Kentucky</option>
        <option value="LA">Louisiana</option>
        <option value="ME">Maine</option>
        <option value="MD">Maryland</option>
        <option value="MA">Massachusetts</option>
        <option value="MI">Michigan</option>
        <option value="MN">Minnesota</option>
        <option value="MS">Mississippi</option>
        <option value="MO">Missouri</option>
        <option value="MT">Montana</option>
        <option value="NE">Nebraska</option>
        <option value="NV">Nevada</option>
        <option value="NH">New Hampshire</option>
        <option value="NJ">New Jersey</option>
        <option value="NM">New Mexico</option>
        <option value="NY">New York</option>
        <option value="NC">North Carolina</option>
        <option value="ND">North Dakota</option>
        <option value="OH" selected>Ohio</option>
        <option value="OK">Oklahoma</option>
        <option value="OR">Oregon</option>
        <option value="PA">Pennsylvania</option>
        <option value="RI">Rhode Island</option>
        <option value="SC">South Carolina</option>
        <option value="SD">South Dakota</option>
        <option value="TN">Tennessee</option>
        <option value="TX">Texas</option>
        <option value="UT">Utah</option>
        <option value="VT">Vermont</option>
        <option value="VA">Virginia</option>
        <option value="WA">Washington</option>
        <option value="WV">West Virginia</option>
        <option value="WI">Wisconsin</option>
        <option value="WY">Wyoming</option>
    </select>
    <cc1:FBSCheckBoxList ID="FBSCheckBoxList1" runat="server">
        <asp:ListItem Value="1">选项A</asp:ListItem>
        <asp:ListItem Value="2">选项B</asp:ListItem>
        <asp:ListItem Value="3">选项C</asp:ListItem>
        <asp:ListItem Value="4">选项D</asp:ListItem>
        <asp:ListItem Value="5">选项E</asp:ListItem>
        <asp:ListItem Value="6">选项F</asp:ListItem>
        <asp:ListItem Value="7">选项G</asp:ListItem>
        <asp:ListItem Value="8">选项H</asp:ListItem>
    </cc1:FBSCheckBoxList>
    <asp:Button ID="Button11" runat="server" Text="设置选择项Text" OnClick="Button11_Click" />
    <br />
    <asp:Button ID="Button2" runat="server" Text="获取选择项Text" OnClick="Button2_Click" />
    <br />
    <asp:Button ID="Button3" runat="server" Text="设置选择项Value" OnClick="Button3_Click" />
    <br />
    <asp:Button ID="Button4" runat="server" Text="获取选择项Value" OnClick="Button4_Click" /><br />
    <br />
    <asp:Button ID="Button5" runat="server" Text="获取选择项Test+Value" OnClick="Button5_Click" /><br />
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </form>

页面如下

可以跟不同的需求 实现全选，获取任意checkbox值及value 也可以通过设置默认text和value

之前做的项目一直是用到服务器端控件和html控件，自己自定义开发控件 刚接触  所以 有什么不妥的 请大家指教 谢谢

如果 您有这块自定义代码   可否 email给我一份 感谢 pepe_anhwei@126.com