我需要显示一个 AjaxControlToolkit ModalPopupExtender 控件，当用户选中/取消选中作为 TemplateField 的 GridView 内的 CheckBox 控件时。
--更新于 24/05/2013
在此处查看最终解决方案...
我们终于解决了这个问题。所以我决定在这里发布完整的解决方案和最终代码。
网格视图
<asp:GridView ID="gvDocs" runat="server" CssClass="grid" AutoGenerateColumns="false" AllowPaging="true" AllowSorting="true"
OnPageIndexChanging="gvDocs_PageIndexChanging"
OnSorting="gvDocs_Sorting"
OnRowDataBound="gvDocs_RowDataBound">
<AlternatingRowStyle CssClass="grid_row_alternate"/>
<HeaderStyle CssClass="grid_header" />
<RowStyle CssClass="grid_row" />
<SelectedRowStyle CssClass="grid_row_selected" />
<Columns>
<asp:BoundField DataField="ID"/>
<asp:BoundField DataField="COLUMN_A" SortExpression="COLUMN_A" HeaderText="COLUMN_A" />
<asp:BoundField DataField="COLUMN_B" SortExpression="COLUMN_B" HeaderText="COLUMN_B" />
<!-- TemplateField with the CheckBox and the ModalPopupExtender controls -->
<asp:TemplateField HeaderText="Check" SortExpression="CHECK_COLUMN">
<ItemStyle HorizontalAlign="Center"/>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server"/>
<!-- Modal Popup block -->
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" BackgroundCssClass="modalBackground" DropShadow="True" TargetControlID="CheckBox1" PopupControlID="panModalPopup" CancelControlID="CancelButton"/>
<asp:Panel ID="panModalPopup" runat="server" style="display:none; text-align:left; width:400px; background-color:White; border-width:2px; border-color:#40A040; border-style:solid; padding:10px;">
Are you sure?
<br /><br />
<div style="text-align:right;">
<asp:Button ID="ConfirmButton" runat="server" Text="Confirm" OnClick="ConfirmButton_Click" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "ID") %>'/>
<asp:Button ID="CancelButton" runat="server" Text="Cancel"/>
</div>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
</Columns>
背后的代码
protected void gvDocs_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType.Equals(DataControlRowType.DataRow))
{
// Setting the CheckBox check reading the state from DB
CheckBox CheckBox1 = (CheckBox)e.Row.FindControl("CheckBox1");
CheckBox1.Checked = DataBinder.Eval(e.Row.DataItem, "CHECK_COLUMN").ToString() == "Y"; // Or any other value that works like true/false
}
}
protected void ConfirmButton_Click(object sender, EventArgs e)
{
string id = ((Button)sender).CommandArgument; // Get the ID column value
// Update the CHECK_COLUMN value on the DB or do whatever you want with the ID...
BindData(); // Method that do the GridView DataBind after the changes applied to the DB
}
有些事情要知道
1)ModalPopupExtender1控件位于 GridView TemplateField 内，因为它需要访问CheckBox1及其单击事件。它可能不是有史以来最好的解决方案，但它可以工作，因此如果您的 GridView 不太复杂并且是分页的，它不会对性能产生太大影响。
2) 为了捕捉ConfirmButtonClick 事件，您必须从控件设置中删除该OKControlID属性。ModalPopupExtender
- 结尾
--更新于 22/05/2013
然后我需要相应行的 ID在数据库上进行更新。
- 结尾
这是网格视图
<asp:GridView ID="gvDocs" runat="server" CssClass="grid" AutoGenerateColumns="false" AllowPaging="true" AllowSorting="true"
OnPageIndexChanging="gvDocs_PageIndexChanging"
OnSorting="gvDocs_Sorting"
OnRowDataBound="gvDocs_RowDataBound">
<AlternatingRowStyle CssClass="grid_row_alternate"/>
<HeaderStyle CssClass="grid_header" />
<RowStyle CssClass="grid_row" />
<SelectedRowStyle CssClass="grid_row_selected" />
<Columns>
<asp:BoundField DataField="ID_DOCUMENTO" Visible="False"/>
<asp:BoundField DataField="NUM_PROT" SortExpression="NUM_PROT" HeaderText="N. Prot." />
<asp:BoundField DataField="DATE_PROT" SortExpression="DATE_PROT" HeaderText="Data Prot." />
... some other BoundFields ...
<asp:TemplateField HeaderText="Da archiviare" SortExpression="DA_ARCHIVIARE">
<ItemStyle HorizontalAlign="Center"/>
<ItemTemplate>
<asp:CheckBox ID="chkArchiviare" runat="server" AutoPostBack="True" OnCheckedChanged="chkArchiviare_CheckedChanged"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
这是 ModalPopup 块
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" DropShadow="True" TargetControlID="panModalPopup" PopupControlID="panModalPopup" OkControlID="btnConferma" CancelControlID="btnAnnulla" />
<asp:Panel ID="panModalPopup" runat="server" style="display:none; width:400px; background-color:White; border-width:2px; border-color:Black; border-style:solid; padding:20px;">
Are you sure?
<br /><br />
<div style="text-align:right;">
<asp:Button ID="btnConferma" runat="server" Text="Conferma" OnClick="btnConferma_Click"/>
<asp:Button ID="btnAnnulla" runat="server" Text="Annulla" OnClick="btnAnnulla_Click" />
</div>
</asp:Panel>
现在，我想在每次选中/取消选中复选框时显示 ModalPopup，并且该弹出窗口必须显示带有 2 个按钮的确认消息：确认和取消。确认必须对数据库进行更新，然后回发。取消只需隐藏弹出窗口而不回发。
我知道 ModalPopupExtender 监听 OnClick 事件。那么，我是否需要一个 Button、LinkButton、ImageButton 等，或者我可以做我想做的事吗？