Hi Jackhui,

it looks like you are trying to evaluate if an Object is equal to an Integer number. This causes the compiler to raise the error. Could you post the code you are using?

Best regards,
Dario Rossa

Sorry i dint say clearly, this error is occur only when i write in ascx page:

 <asp:LinqDataSource ID="LinqDataSource1" runat="server"
    ContextTypeName="Testing2.Testing2DataContext" EnableDelete="True"
    EnableInsert="True" EnableUpdate="True" TableName="TestingTable2s"
   Where="ModuleId == @ModuleId"   >
    <WhereParameters>
        <asp:Parameter Name="ModuleId" Type="Int32" />
    </WhereParameters>
</asp:LinqDataSource>

Another question, can enyone help me convert  it into VB code ?

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if ((e.Row.RowType == DataControlRowType.DataRow))
{
ThingsForSale ThingsForSale = ((ThingsForSale)(e.Row.DataItem));

if ((PortalSecurity.IsInRole("Administrators"))
|| (Entities.Users.UserController.GetCurrentUserInfo().UserID == (int)ThingsForSale.UserID))
{
e.Row.Cells[0].Enabled = true;
}
else
{
e.Row.Cells[0].Text = " ";
}
}
}