我有以下代码
<asp:Content ID="headContent" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true">
<DataControls>
<asp:DataControlReference ControlID="FormView1" />
</DataControls>
</asp:DynamicDataManager>
<h2 class="DDSubHeader">
Edit entry from table
<%= table.DisplayName %></h2>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" EnableClientScript="true"
HeaderText="List of validation errors" CssClass="DDValidator" />
<asp:DynamicValidator runat="server" ID="DetailsViewValidator" ControlToValidate="FormView1"
Display="None" CssClass="DDValidator" />
<asp:FormView runat="server" ID="FormView1" DataSourceID="DetailsDataSource" DefaultMode="Edit"
OnItemCommand="FormView1_ItemCommand" OnItemUpdated="FormView1_ItemUpdated" RenderOuterTable="false"
OnPageIndexChanging="FormView1_PageIndexChanging">
<EditItemTemplate>
<table id="detailsTable" class="DDDetailsTable" cellpadding="6">
<asp:DynamicEntity runat="server" Mode="Edit" />
<tr class="td">
<td colspan="2">
<asp:LinkButton runat="server" CommandName="Update" Text="Update" />
<asp:LinkButton runat="server" CommandName="Cancel" Text="Cancel" CausesValidation="false" />
<br />
</td>
<td>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Label ID="lblMessage" runat="server">
</asp:Label>
<asp:Button ID="btnUpload" runat="server" OnClick="btnUpload_Click" Text="Upload" />
</td>
</tr>
</table>
</EditItemTemplate>
<EmptyDataTemplate>
<div class="DDNoItem">
No such item.</div>
</EmptyDataTemplate>
</asp:FormView>
<asp:LinqDataSource ID="DetailsDataSource" runat="server" EnableUpdate="true" />
<asp:QueryExtender TargetControlID="DetailsDataSource" ID="DetailsQueryExtender"
runat="server">
<asp:DynamicRouteExpression />
</asp:QueryExtender>
</ContentTemplate>
</asp:UpdatePanel>
该文件是使用动态数据生成的。我正在尝试在表单中添加文件上传控件,但在后面的代码中我无法访问“FileUpload1”以查看它是否包含元素。我怎样才能做到这一点?
如果我制作一个新表格,它可以工作,但我无法让它在我现有的表格中工作。
<form id="form1" runat="server"></form>