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Форум программистов > Разработка под ASP.NET > Gridview -> DrpDownList -> value

Автор: a388pm 20.9.2007, 12:52

Есть  <Columns> ...                <asp:TemplateField HeaderText="test" SortExpression="column"> ...                          <EditItemTemplate>                     <asp:DropDownList ID="hello" runat="server" AutoPostBack="True" SelectedValue='<%# Bind ("column") %>'>                                                           <asp:ListItem Selected="True">hi</asp:ListItem>                                           </asp:DropDownList></EditItemTemplate></asp:TemplateField></Columns> Выдает :  'hello' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value  без SelectedValue - NULL : Cannot insert the value NULL into column 'column', table 'myBase.dbo.column'; column does not allow nulls. UPDATE fails. The statement has been terminated.

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