GridView/DataGrid行单击和双击事件实现代码(转）

GridView/DataGrid行单击和双击事件实现代码(转）
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            LoadGridViewProductData();
            LoadDataGridProductData();
        }
    }

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        /* 
         当然可以在这里进行客户端脚本绑定， 
         但是，我选择在重载页的 Render 方法中处理，因为 
         1. RowDataBound 仅仅在调用 DataBind 之后才会触发，回发通过 ViewState 创建空件不触发 
            假如需要更多的处理，你需要分开部分逻辑到 RowCreated 等事件中 
         2. 并且我们希望使用 
            ClientScript.GetPostBackEventReference 和 ClientScript.RegisterForEventValidation 方法 
            进行安全脚本的注册，而后者需要在页的 Render 阶段中才能处理          
        */
    }

    protected void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
    {
        // 隐藏辅助按钮列 
        int cellIndex = 0;
        e.Item.Cells[cellIndex].Attributes["style"] = "display:none";
    }

    void LoadGridViewProductData()
    {
        DataTable dt = CreateSampleProductData();

        GridView1.DataSource = dt;
        GridView1.DataBind();
    }

    void LoadDataGridProductData()
    {
        DataTable dt = CreateSampleProductData();

        DataGrid1.DataSource = dt;
        DataGrid1.DataBind();
    }

    #region sample data

    static DataTable CreateSampleProductData()
    {
        DataTable tbl = new DataTable("Products");

        tbl.Columns.Add("ProductID", typeof(int));
        tbl.Columns.Add("ProductName", typeof(string));
        tbl.Columns.Add("UnitPrice", typeof(decimal));
        tbl.Columns.Add("CategoryID", typeof(int));

        tbl.Rows.Add(1, "Chai", 18, 1);
        tbl.Rows.Add(2, "Chang", 19, 1);
        tbl.Rows.Add(3, "Aniseed Syrup", 10, 2);
        tbl.Rows.Add(4, "Chef Anton’s Cajun Seasoning", 22, 2);
        tbl.Rows.Add(5, "Chef Anton’s Gumbo Mix", 21.35, 2);
        tbl.Rows.Add(47, "Zaanse koeken", 9.5, 3);
        tbl.Rows.Add(48, "Chocolade", 12.75, 3);
        tbl.Rows.Add(49, "Maxilaku", 20, 3);

        return tbl;
    }

    #endregion

    protected override void Render(HtmlTextWriter writer)
    {
        // GridView 
        foreach (GridViewRow row in GridView1.Rows)
        {
            if (row.RowState == DataControlRowState.Edit)
            { // 编辑状态 
                row.Attributes.Remove("onclick");
                row.Attributes.Remove("ondblclick");
                row.Attributes.Remove("style");
                row.Attributes["title"] = "编辑行";
                continue;
            }
            if (row.RowType == DataControlRowType.DataRow)
            {
                // 单击事件，为了响应双击事件，需要延迟单击响应，根据需要可能需要增加延迟 
                // 获取ASP.NET内置回发脚本函数，返回 __doPostBack(<<EventTarget>>, <<EventArgument>>) 
                // 可直接硬编码写入脚本，不推荐                 
                row.Attributes["onclick"] = String.Format("javascript:setTimeout(\"if(dbl_click){{dbl_click=false;}}else{{{0}}};\", 1000*0.3);", ClientScript.GetPostBackEventReference(GridView1, "Select$" + row.RowIndex.ToString(), true));
                // 双击，设置 dbl_click=true，以取消单击响应 
                row.Attributes["ondblclick"] = String.Format("javascript:dbl_click=true;window.open(’DummyProductDetail.aspx?productid={0}’);", GridView1.DataKeys[row.RowIndex].Value.ToString());
                // 
                row.Attributes["style"] = "cursor:pointer";
                row.Attributes["title"] = "单击选择行，双击打开详细页面";
            }
        }

        // DataGrid 
        foreach (DataGridItem item in DataGrid1.Items)
        {
            if (item.ItemType == ListItemType.EditItem)
            {
                item.Attributes.Remove("onclick");
                item.Attributes.Remove("ondblclick");
                item.Attributes.Remove("style");
                item.Attributes["title"] = "编辑行";
                continue;
            }
            if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
            {
                //单击事件，为了响应双击事件，延迟 1 s，根据需要可能需要增加延迟 
                // 获取辅助的支持回发按钮 
                // 相对而言， GridView 支持直接将 CommandName 作为 <<EventArgument>> 故不需要辅助按钮 
                Button btnHiddenPostButton = item.FindControl("btnHiddenPostButton") as Button;
                item.Attributes["onclick"] = String.Format("javascript:setTimeout(\"if(dbl_click){{dbl_click=false;}}else{{{0}}};\", 1000*0.3);", ClientScript.GetPostBackEventReference(btnHiddenPostButton, null));
                // 双击 
                // 双击，设置 dbl_click=true，以取消单击响应 
                item.Attributes["ondblclick"] = String.Format("javascript:dbl_click=true;window.open(’DummyProductDetail.aspx?productid={0}’);", DataGrid1.DataKeys[item.ItemIndex].ToString());

                // 
                item.Attributes["style"] = "cursor:pointer";
                item.Attributes["title"] = "单击选择行，双击打开详细页面";
            }
        }

        base.Render(writer);
    } 

 

 

<%@ Page Language="C#" %> 
<%@ Import Namespace="System.Data" %> 

<%--http://community.csdn.net/Expert/TopicView3.asp?id=5767096--%> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<script runat="server">

//可以将上面的后台代码嵌入此处 

</script> 

<html xmlns="http://www.w3.org/1999/xhtml" > 
<head id="Head1" runat="server"> 
     <title>ASP.NET DEMO15: GridView 行单击与双击事件2</title> 
     <script> 
     // 辅助全局变量，指示是否双击 
     var dbl_click = false; 
     </script>     
</head> 
<body> 
     <form id="form1" runat="server"> 
     <div>         
         <h3>功能：</h3> 
             <li>单击选中行</li> 
             <li>双击打开详细页面</li>         
         <h3>说明：</h3> 
         <ul> 
             <li>这是<a href="GridView/DataGrid http://www.cnblogs.com/Jinglecat/archive/2007/09/20/900645.html"> ASP.NET DEMO 15: 同时支持行单击和双击事件</a>的改进版本</li>             
             <li>单击事件（onclick）使用了 setTimeout 延迟，根据实际需要修改延迟时间</li> 
             <li>当双击时，通过全局变量 dbl_click 来取消单击事件的响应</li> 
             <li>常见处理行方式会选择在 RowDataBound/ItemDataBound 中处理，这里我选择 Page.Render 中处理，至少基于以下考虑 
                 <li style="padding-left:20px; list-style-type:square">RowDataBound 仅仅在调用 DataBind 之后才会触发，回发通过 ViewState 创建空件不触发 
             假如需要更多的处理，你需要分开部分逻辑到 RowCreated 等事件中</li> 
                 <li style="padding-left:20px; list-style-type:square">并且我们希望使用 
             ClientScript.GetPostBackEventReference 和 ClientScript.RegisterForEventValidation 方法 
             进行安全脚本的注册，而后者需要在页的 Render 阶段中才能处理</li> 
             </li> 
             <li>关于“DataGrid中采取的辅助按钮支持回发”见<a href="http://www.cnblogs.com/Jinglecat/archive/2007/07/15/818394.html%22%3EASP.NET DEMO8: 为 GridView 每行添加服务器事件</a> 
         </ul> 
         <br /> 
         <input type="button" id="Button1" value="Rebind" onclick="location.href=location.href;" /> 
         <div style="float:left"> 
         <h3>GridView Version</h3> 
         <asp:GridView ID="GridView1" DataKeyNames="ProductID" runat="server" AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound"> 
             <SelectedRowStyle BackColor="CadetBlue" /> 
             <Columns>                                           
                 <asp:TemplateField HeaderText="ProductName" >                                 
                     <ItemTemplate>                     
                         <%# Eval("ProductName") %> 
                     </ItemTemplate> 
                     <EditItemTemplate> 
                         <asp:TextBox ID="txtProductName" runat="server" Text=’<%# Bind("ProductName") %>’ /> 
                     </EditItemTemplate> 
                 </asp:TemplateField> 
                 <asp:BoundField DataField="UnitPrice" HeaderText="UnitPrice" />                 
             </Columns> 
         </asp:GridView></div> 
         <div style="float:left;padding-left:100px;"> 
         <h3>DataGrid Version</h3> 
         <asp:DataGrid ID="DataGrid1" DataKeyField="ProductID"   runat="server" AutoGenerateColumns="False" OnItemDataBound="DataGrid1_ItemDataBound"> 
         <SelectedItemStyle BackColor="CadetBlue" /> 
             <Columns>              
                 <asp:TemplateColumn> 
                     <ItemTemplate> 
                         <asp:Button ID="btnHiddenPostButton" CommandName="Select" runat="server" Text="HiddenPostButton" style="display:none" /> 
                     </ItemTemplate> 
                 </asp:TemplateColumn>           
                 <asp:BoundColumn DataField="ProductName" HeaderText="ProductName" /> 
                 <asp:BoundColumn DataField="UnitPrice" HeaderText="UnitPrice" /> 
             </Columns> 
         </asp:DataGrid></div> 
         </li> 
         </div> 
     </form> 
</body> 
</html>