Hi,
I just gave it a shot iwth the following markup and it worked fine:
<head runat="server">
<title></title>
<style type="text/css">
.DirectoryGridHeader
{
background-color: #666666 !important; background-image: none !important;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<ig:WebDataGrid ID="WebDataGrid1" runat="server" Height="350px" Width="400px"
HeaderCaptionCssClass="DirectoryGridHeader" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1">
<Columns>
<ig:BoundDataField DataFieldName="ProductID" Key="ProductID">
<Header Text="ProductID" />
</ig:BoundDataField>
<ig:BoundDataField DataFieldName="ProductName" Key="ProductName">
<Header Text="ProductName" />
</ig:BoundDataField>
</Columns>
</ig:WebDataGrid>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
ProviderName="<%$ ConnectionStrings:NorthwindConnectionString.ProviderName %>"
SelectCommand="SELECT [ProductID], [ProductName] FROM [Alphabetical List of Products]">
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
Ed