c# - 如何使用 PopupControlExtender 弹出 ASP.NET 控件而不是面板？

Question

PopupControlExtender 可以弹出许多ASP.NET 控件，但是在Internet 上只能找到弹出面板 的示例... 如何弹出gridview等其他控件？

例如我将通过 MachineNo 从数据库中获取一个 DataTable，并将 DataTable 设置为 GridView2 的数据源。然后我想弹出 GridView2，当鼠标悬停在图像按钮上时显示该机器的信息。 后面的代码怎么写？

<asp:GridView ID="GridView1" ...onrowcreated="GridView1_RowCreated">
<Columns>
  <asp:BoundField HeaderText="MachineNo" DataField="MachineNo"/>
  <asp:TemplateField>
    <ItemTemplate>
      <asp:ImageButton ID="ImageButton1" .../>
      <cc1:PopupControlExtender ID="PopupControlExtender1" runat="server" 
           PopupControlID="GridView2" 
           TargetControlID="ImageButtonl" 
           DynamicContextKey='<%# Eval("MachineNo") %>' 
           DynamicControlID="GridView2" 
           DynamicServiceMethod="GetDynamicContent" ???>
      </cc1:PopupControlExtender>
    </ItemTemplate>
  </asp:TemplateField>
</Columns>
</asp:GridView>

<asp:GridView ID="GridView2" ...>...

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e){
if (e.Row.RowType == DataControlRowType.DataRow)
{
    PopupControlExtender PopupControlExtender1 = (PopupControlExtender)e.Row.FindControl("PopupControlExtender1");
    string behaviorID = "PopupControlExtender1_" + e.Row.RowIndex;
    PopupControlExtender1.BehaviorID = behaviorID;
    ImageButton ImageButton1 = (ImageButton)e.Row.FindControl("ImageButton1");

    string OnMouseOverScript = string.Format("$find('{0}').showPopup();", behaviorID);
    string OnMouseOutScript = string.Format("$find('{0}').hidePopup();", behaviorID);

    ImageButton1.Attributes.Add("onmouseover", OnMouseOverScript);
    ImageButton1.Attributes.Add("onmouseout", OnMouseOutScript);
}}

Answer 1

我刚刚阅读了您的代码。在我这边，我以这种方式显示弹出窗口而获得成功

protected void gvTemplates_RowCreated(object sender, GridViewRowEventArgs e)
    {
        //GridView gv1 = (GridView)sender;
        //foreach (GridViewRow item in gv1.Rows)
        //{
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                PopupControlExtender pce = e.Row.FindControl("PopupControlExtender1") as PopupControlExtender;
                string behaviorID = "pce_" + e.Row.RowIndex;
                pce.BehaviorID = behaviorID;
                Panel pnl = (Panel)e.Row.FindControl("Panel2");
                string OnMouseOverScript = string.Format("$find('{0}').showPopup();", behaviorID);
                string OnMouseOutScript = string.Format("$find('{0}').hidePopup();", behaviorID);
                pnl.Attributes.Add("onmouseover", OnMouseOverScript);
                pnl.Attributes.Add("onmouseout", OnMouseOutScript);
            }
        //}
    }

[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
    public static string GetDynamicContent(string contextKey)
    {
        StringBuilder b = new StringBuilder();
        b.Append("<table style='background-color:#f3f3f3; border: #4DB3A4 2px solid; ");
        b.Append("width:100px;height:100px; font-size:8pt; font-family:'lucida grande', tahoma, verdana, arial, sans-serif;' cellspacing='0' cellpadding='3'>");
        b.Append("<tr><td colspan='3' style='background-color:white;'>");
        b.Append(contextKey);
        b.Append("</td></tr>");
        b.Append("</table>");
        return b.ToString();
    }