Linq First Operator - How to get the first element of a sequence
LinqFirstOperator.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 = { "Stervrucht", "Punica granatum", "Persea americana", "Oranger", "Marian plum", "Mandarin" };
string firstItem = (from f in fruits
select f).First();
Label1.Text = "Fruits List: <br />";
foreach (string names in fruits)
{
Label1.Text += names.ToString() + "<br />";
}
Label2.Text = "After Calling First Operator: " + firstItem;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Linq First Operator - How to get the first 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 - First
<br />How to get the first element of a sequence
</h2>
<hr width="550" align="left" color="CornFlowerBlue" />
<asp:Label
ID="Label1"
runat="server"
Font-Size="X-Large"
ForeColor="HotPink"
Font-Italic="true"
>
</asp:Label>
<br />
<asp:Label
ID="Label2"
runat="server"
Font-Size="X-Large"
ForeColor="Indigo"
Font-Italic="true"
>
</asp:Label>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Test Linq Query Operator - First"
Height="45"
Font-Bold="true"
ForeColor="DodgerBlue"
/>
</div>
</form>
</body>
</html>
- linq - How to get a sequence that skips a given number of items
- linq - Get a subset of sequence that skips unmatched condition items
- linq - How to get element at a specified index in a sequence
- linq - Get first element of a sequence that match condition or a default value
- linq - How to get the last element of a sequence
- linq - Get last element of a sequence that match condition or a default value
- linq - How to take a given number of elements from a sequence
- linq - How to concatenate two sequences
- linq - How to return a default value if query result is empty
- linq - How to get element at a specified index or a default value
