Question

How do you set the colors and width of the gridlines in a DataGrid, in my DataGrid I cannot get the gridlines to show up or the rowlines.

            <asp:DataGrid ID="OpenGrid" runat="server" PageSize="10" AllowPaging="True" DataKeyField="InvoiceID"
                            AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" GridLines="Both"
                            Width="65%" BorderWidth="1px">

Answer 1

Try this <ItemStyle BorderColor="Blue" />

update

if you are familiar with .css you can take this concept and apply it.

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
    <style>
        .exampleDiv table
        {
            border-color: Blue;
        }

        .exampleDiv td
        {
            border-color: Blue;
        }
    </style>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">   
    <div class="exampleDiv">
        <asp:DataGrid ID="dgTest" runat="server">
        </asp:DataGrid>
    </div>
</asp:Content>