UpdatePanelWalkthrough2 Sample
vb/SearchResultsWithUpdatePanelVB.aspx
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Search_Click(ByVal sender As Object, ByVal e As System.EventArgs)
SqlDataSource1.SelectParameters("SearchTerm").DefaultValue = _
Server.HtmlEncode(SearchField.Text)
Label1.Text = "Searching for '" & _
Server.HtmlEncode(SearchField.Text) & "'"
End Sub
Protected Sub ExampleProductSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs)
SqlDataSource1.SelectParameters("SearchTerm").DefaultValue = _
Server.HtmlEncode(ExampleProductSearch.Text)
Label1.Text = "Searching for '" & _
Server.HtmlEncode(ExampleProductSearch.Text) & "'"
SearchField.Text = ExampleProductSearch.Text
UpdatePanel2.Update()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head2" runat="server">
<title>Declarative Trigger Example</title>
<style type="text/css">
body {
font-family: Lucida Sans Unicode;
font-size: 10pt;
}
button {
font-family: tahoma;
font-size: 8pt;
}
</style>
</head>
<body>
<form id="form1" runat="server"
defaultbutton="SearchButton" defaultfocus="SearchField">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" />
Search for products in the Northwind database. For example,
find products with
<asp:LinkButton ID="ExampleProductSearch" Text="Louisiana" runat="server" OnClick="ExampleProductSearch_Click">
</asp:LinkButton> in the title. <br /><br />
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:TextBox ID="SearchField" runat="server"></asp:TextBox>
<asp:Button ID="SearchButton" Text="Submit" OnClick="Search_Click"
runat="server" />
</ContentTemplate>
</asp:UpdatePanel>
<fieldset>
<legend>Northwind Products</legend>
<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional"
runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="SearchButton" />
<asp:AsyncPostBackTrigger ControlID="ExampleProductSearch" />
</Triggers>
<ContentTemplate>
<asp:Label ID="Label1" runat="server"/>
<br />
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" DataSourceID="SqlDataSource1">
<EmptyDataTemplate>
No results to display.
</EmptyDataTemplate>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT [ProductName], [UnitsInStock] FROM
[Alphabetical list of products] WHERE ([ProductName] LIKE
'%' + @SearchTerm + '%')">
<SelectParameters>
<asp:Parameter Name="SearchTerm" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
</ContentTemplate>
</asp:UpdatePanel>
</fieldset>
</div>
</form>
</body>
</html>