Displaying a message when no records match. : GridView « Data Binding « ASP.NET Tutorial
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<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
protected void btnSubmit_Click(object sender, EventArgs e)
{
grdProducts.Visible = true;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show Empty Data Text</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox
id="txtTitle"
Runat="server" />
<asp:Button
id="btnSubmit"
Text="Search"
OnClick="btnSubmit_Click"
Runat="server" />
<hr />
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
EmptyDataText="No Matching Products!"
Visible="false"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title,Director FROM Products WHERE Title LIKE @Title+'%'"
Runat="server">
<SelectParameters>
<asp:ControlParameter
Name="Title"
ControlID="txtTitle"
PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
File: Web.config
<configuration>
<connectionStrings>
<add name="Products"
connectionString="Data Source=.\SQLEXPRESS;
AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
</connectionStrings>
</configuration>