Mega Code Archive
Sorting a DataView stored in Session state
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<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web.Configuration" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
DataView dvProducts;
void Page_Load()
{
dvProducts = (DataView)Session["Products"];
if (dvProducts == null)
{
string conString = WebConfigurationManager.ConnectionStrings["Products"]. ConnectionString;
SqlDataAdapter dad = new SqlDataAdapter("SELECT Id,Title,Director FROM Products", conString);
DataTable dtblProducts = new DataTable();
dad.Fill(dtblProducts);
dvProducts = new DataView(dtblProducts);
Session["Products"] = dvProducts;
}
}
protected void grdProducts_Sorting(object sender, GridViewSortEventArgs e)
{
dvProducts.Sort = e.SortExpression;
}
void Page_PreRender()
{
grdProducts.DataSource = dvProducts;
grdProducts.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Session DataView</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdProducts"
AllowSorting="true"
EnableViewState="false"
OnSorting="grdProducts_Sorting"
Runat="server" />
<br />
<asp:LinkButton
id="lnkReload"
Text="Reload Page"
Runat="server" />
</div>
</form>
</body>
</html>
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