Linq Single Operator - How to get the single element of a sequence
LinqSingleOperator.aspx
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Linq" %>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
string[] fruits = { "Cambodian palm", "Burmese Grape", "Citrus maxima", "Custard apple" };
var itemEndsWithGrape = from f in fruits
where f.EndsWith("Grape")
select f;
Label1.Text = "Fruits List:....... <br />";
foreach (string names in fruits)
{
Label1.Text += names.ToString() + "<br />";
}
Label2.Text = "After Calling Single Operator: " + itemEndsWithGrape.Single();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Linq Single Operator - How to get the single element of a sequence</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:DarkBlue; font-style:italic;">
Linq Standard Query Operator: Element Operator - Single
<br />How to get the single element of a sequence
</h2>
<hr width="600" align="left" color="CornFlowerBlue" />
<asp:Label
ID="Label1"
runat="server"
Font-Size="X-Large"
ForeColor="DarkOrchid"
Font-Italic="true"
>
</asp:Label>
<br />
<asp:Label
ID="Label2"
runat="server"
Font-Size="X-Large"
ForeColor="SkyBlue"
Font-Italic="true"
>
</asp:Label>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Test Linq Query Operator - Single"
Height="45"
Font-Bold="true"
ForeColor="DodgerBlue"
/>
</div>
</form>
</body>
</html>
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