Select GridView - Demo
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<style type="text/css">
html
{
background-color:silver;
font-family:Georgia, Serif;
}
.gridView
{
float:left;
margin-right:20px;
background-color:white;
}
.gridView td, .gridView th
{
padding:10px;
}
.selectedRow
{
background-color:yellow;
}
</style>
<title>Select GridView</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdMovieCategories"
DataKeyNames="Id"
DataSourceID="srcMovieCategories"
AutoGenerateSelectButton="true"
SelectedRowStyle-CssClass="selectedRow"
CssClass="gridView"
Runat="server" />
<asp:GridView
id="grdMovies"
DataSourceID="srcMovies"
CssClass="gridView"
Runat="server" />
<asp:SqlDataSource
id="srcMovieCategories"
ConnectionString="<%$ ConnectionStrings:MyDatabase %>"
SelectCommand="SELECT Id, Name FROM MovieCategories"
Runat="server" />
<asp:SqlDataSource
id="srcMovies"
ConnectionString="<%$ ConnectionStrings:MyDatabase %>"
SelectCommand="SELECT Title,Director FROM Movies
WHERE CategoryId=@CategoryId"
Runat="server">
<SelectParameters>
<asp:ControlParameter
Name="CategoryId"
ControlID="grdMovieCategories"
PropertyName="SelectedValue" />
</SelectParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>