上接扩展GridView控件(3) - 根据按钮的CommandName设置其客户端属性

/// <summary> 
         /// 类型转换器 
         /// </summary> 
         public  class ConfirmButtonConverter : ExpandableObjectConverter 
        { 
                 /// <summary> 
                 /// 返回值能否将ConfirmButton类型转换为String类型 
                 /// </summary> 
                 /// <param name="context"></param> 
                 /// <param name="destinationType"></param> 
                 /// <returns></returns> 
                 public  override  bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) 
                { 
                         if (destinationType ==  typeof( string)) 
                        { 
                                 return  true; 
                        } 
                         return  base.CanConvertTo(context, destinationType); 
                } 
 
                 /// <summary> 
                 /// 将ConfirmButton类型转换为String类型 
                 /// </summary> 
                 /// <param name="context"></param> 
                 /// <param name="culture"></param> 
                 /// <param name="value"></param> 
                 /// <param name="destinationType"></param> 
                 /// <returns></returns> 
                 public  override  object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, 
                         object value, Type destinationType) 
                { 
                         if (value !=  null) 
                        { 
                                 if (!(value  is YYControls.SmartGridView.ConfirmButton)) 
                                { 
                                         throw  new ArgumentException( 
                                                 "无效的ConfirmButton",  "value"); 
                                } 
                        } 
 
                         if (destinationType.Equals( typeof( string))) 
                        { 
                                 if (value ==  null) 
                                { 
                                         return String.Empty; 
                                } 
                                 return  "ConfirmButton"; 
                        } 
                         return  base.ConvertTo(context, culture, value, destinationType); 
                } 
        }

private ConfirmButtons _confirmButtons; 
                 /// <summary> 
                 /// 确认按钮集合 
                 /// </summary> 
                [ 
                PersistenceMode(PersistenceMode.InnerProperty), 
                DesignerSerializationVisibility(DesignerSerializationVisibility.Content), 
                Description( "确认按钮集合，确认按钮的CommandName和提示信息"), 
                Category( "扩展") 
                ] 
                 public  virtual ConfirmButtons ConfirmButtons 
                { 
                        get 
                        { 
                                 if (_confirmButtons ==  null) 
                                { 
                                        _confirmButtons =  new ConfirmButtons(); 
                                } 
                                 return _confirmButtons; 
                        } 
                }

/// <summary> 
                 /// OnRowDataBound 
                 /// </summary> 
                 /// <param name="e"></param> 
                 protected  override  void OnRowDataBound(GridViewRowEventArgs e) 
                { 
                         if (e.Row.RowType == DataControlRowType.DataRow) 
                        { 
                                 if ( this._confirmButtons !=  null) 
                                { 
                                         // GridViewRow的每个TableCell 
                                         foreach (TableCell tc  in e.Row.Cells) 
                                        { 
                                                 // TableCell里的每个Control 
                                                 foreach (Control c  in tc.Controls) 
                                                { 
                                                         // 如果控件继承自接口IButtonControl 
                                                         if (c.GetType().GetInterface( "IButtonControl") !=  null && c.GetType().GetInterface( "IButtonControl").Equals( typeof(IButtonControl))) 
                                                        { 
                                                                 // 从用户定义的ConfirmButtons集合中分解出ConfirmButton 
                                                                 foreach (ConfirmButton cb  in _confirmButtons) 
                                                                { 
                                                                         // 如果发现的按钮的CommandName在ConfirmButtons有定义的话 
                                                                         if (((IButtonControl)c).CommandName == cb.CommandName) 
                                                                        { 
                                                                                 // 增加确认框属性 
                                                                                ((IAttributeAccessor)c).SetAttribute( "onclick",  "return confirm('"+ cb.ConfirmMessage +  "')"); 
                                                                                 break; 
                                                                        } 
                                                                } 
                                                        } 
                                                } 
                                        } 
                                } 
                        } 
 
                         base.OnRowDataBound(e); 
                }

using System; 
using System.Data; 
using System.Configuration; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 
 
using System.ComponentModel; 
 
/// <summary> 
/// OjbData 的摘要说明 
/// </summary> 
public  class OjbData 
{ 
         public OjbData() 
        { 
                 // 
                 // TODO: 在此处添加构造函数逻辑 
                 // 
        } 
 
        [DataObjectMethod(DataObjectMethodType.Select,  true)] 
         public DataTable Select() 
        { 
                DataTable dt =  new DataTable(); 
                dt.Columns.Add( "no",  typeof( string)); 
                dt.Columns.Add( "name",  typeof( string)); 
 
                 for ( int i = 0; i < 30; i++) 
                { 
                        DataRow dr = dt.NewRow(); 
                        dr[0] =  "no" + i.ToString().PadLeft(2, '0'); 
                        dr[1] =  "name" + i.ToString().PadLeft(2, '0'); 
 
                        dt.Rows.Add(dr); 
                } 
 
                 return dt; 
        } 
}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head runat="server"> 
        <title>无标题页</title> 
</head> 
<body> 
        <form id="form1" runat="server"> 
                <div> 
                          
                        <yyc:SmartGridView ID="SmartGridView1" runat="server" AutoGenerateColumns="false" 
                                DataSourceID="ObjectDataSource1"> 
                                <Columns> 
                                        <asp:BoundField DataField="no" HeaderText="序号" SortExpression="no" /> 
                                        <asp:BoundField DataField="name" HeaderText="名称" SortExpression="name" /> 
                                        <asp:ButtonField CommandName="ConfirmTest" Text="确认按钮测试" /> 
                                </Columns> 
                                <ConfirmButtons> 
                                        <yyc:ConfirmButton ConfirmMessage="确认删除吗？" CommandName="ConfirmTest"></yyc:ConfirmButton> 
                                </ConfirmButtons> 
                        </yyc:SmartGridView> 
                        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="Select" 
                                TypeName="OjbData"></asp:ObjectDataSource> 
                </div> 
        </form> 
</body> 
</html>

/*测试版的实现 结束*/