运行gridViewTCOR10.DataBind();时抛出异常：
Unable to cast objects of type system.web.ui.webcontrols.imagebutton 'on the type' system.web.ui.webcontrols.button '.
如果我使用<asp: Button>代替<asp: ImageButton>则可以使用
private void loadTCOR10()
{
try
{
SqlDataAdapter adapter = new SqlDataAdapter();
DataSet ds = new DataSet();
//int i = 0;
string sql = null;
gridViewTCOR10.Visible = true;
table1.Visible = false;
string connectionString = SestanteWeb.Global.rCRVigServer.leggiStringaConnessioneSicurezzaSqlClient();
sql = "select * FROM [PUMA2_FINANZIARIAFAMILIARE].[dbo].[TCOR10]";
SqlConnection connection = new SqlConnection(connectionString);
connection.Open();
SqlCommand command = new SqlCommand(sql, connection);
adapter.SelectCommand = command;
adapter.Fill(ds);
adapter.Dispose();
command.Dispose();
connection.Close();
// gridView1.DataSource = ds.Tables[0];
gridViewTCOR10.DataSource = ds;
gridViewTCOR10.DataBind(); //here throw Exception Unable to cast o bjects of type
//'system.web.ui.webcontrols.imagebutton' on the type 'system.web.ui.webcontrols.button'.
}
catch (Exception ex)
{
}
finally
{
//adapter.Dispose();
//command.Dispose();
//connection.Close();
}
}
en<asp:TemplateField>
<EditItemTemplate>
<asp:ImageButton ID="ButtonUpdate" runat="server" CommandName="Update" Text="Edit" ImageUrl="~/Images/Cancella.gif" />
<asp:ImageButton ID="ButtonCancel" runat="server" ImageUrl="~/Images/Cancella.gif" CommandName="Cancel" Text="Delete" />
<%--<asp:Button ID="ButtonUpdate" runat="server" CommandName="Update" Text="Update" />
<asp:Button ID="ButtonCancel" runat="server" CommandName="Cancel" Text="Cancel" />--%>
</EditItemTemplate>
<ItemTemplate>
<%--<asp:Button ID="ButtonEdit" runat="server" CommandName="Edit" Text="Edit" />--%>
<asp:ImageButton ID="ButtonEdit" runat="server" CommandName="Edit" Text="Edit" ImageUrl="~/Images/Cancella.gif"/>
<asp:ImageButton ID="ButtonDelete" runat="server" ImageUrl="~/Images/Cancella.gif" CommandName="Delete" Text="Delete" />
<%--<asp:Button ID="ButtonDelete" runat="server" CommandName="Delete" Text="Delete" />--%>
</ItemTemplate>
<FooterTemplate>
<asp:ImageButton ID="ButtonAdd" runat="server" ImageUrl="~/Images/Cancella.gif" CommandName="AddNew" Text="Add New Row" ValidationGroup="validaiton" />
<%--<asp:Button ID="ButtonAdd" runat="server" CommandName="AddNew" Text="Add New Row" ValidationGroup="validaiton" />--%>
</FooterTemplate>
</asp:TemplateField>