for loop

For Loops statement, which allows code to be repeatedly executed. In ASP.NET programming sometimes you have to faces situation to repeat a task for several times or you have to repeat a task till you reach a condition, in these situations you can use loop statements to achieve your desired results.

In VB.NET the FOR NEXT Loop , execute the loop body (the source code within For ..Next code block) to a fixed number of times.

vb.net
For var=[startValue] To [endValue] [Step] [loopBody]
Next [var]

var : The counter for the loop to repeat the steps. starValue : The starting value assign to counter variable . endValue : When the counter variable reach end value the Loop will stop .
loopBody : The source code between loop body

C#
for(initialization; condition; step)
statement

initialization : Initialize the value of variable. condition : Evaluate the condition
step : Step taken for each execution of loop body

The following ASP.NET example declare two variables startVal and maxVal and then assign the values 1 and 10 respectively and display the number 1 to 10 using for loop.

Default.aspx

  

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
	<title>Untitled Page</title>
</head>
<body>
	<form id="form1" runat="server">
	<div>
		<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
		<br />
		<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
	</div>
	</form>
</body>
</html>

Click the following links to see full source code

C# Source Code

VB.NET Source Code

default.aspx.cs

default.aspx.vb

ASP.NET Statements - Related Contents

if else statements

foreach loop

while loop

switch case

ASP.NET Exceptions

ASP.NET Related Topics