Range Validator in
ASP.NET à
Hi!
Here i will show you step by step procedure how to use
Range Validator in ASP.NET in visual studio
2005 / 2008
Range Validator is very useful in
asp.net because it restrict the user to enter wrong information like DATE OF
BIRTH etc…
__________________________________________________
Here I am using Visual Studio 2008 but there is no condition you can use
Visual Studio 2005 also.
So follow these steps to create Range
Validator
The Steps are:
1- Start -> All Programs -> Visual Studio 2005 or Visual Studio 2008
2- Now go to File Menu -> New -> Web Site
3- Under Visual Studio Installed Template-> Choose ASP.NET WEB SITE ->
Choose File System from the location combo box -> Set the path by the browse
button - > Choose the language from the Language ComboBox (Visual C# ,
Visual Basic , J #)
Choose Visual C#
4 - Click on the OK Button:-
First you have to learn XML and HTML to work with ASP .NET_
I have used <! – –> to make the text as comment this is
the way to make comment in this code …
This is the Source Code window and in this page you will se this code…
<%@ Page Language=”C#”
AutoEventWireup=”true” CodeFile=”Default.aspx.cs” Inherits=”_Default”
%>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN”
“http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml”>
<head runat=”server”>
<title>Type your webpage title here</title>
<!– Here you can specify your page title in
between title tag ->
</head>
<body>
<form id=”form1? runat=”server”>
<div>
<!– In between div tags you can manage your web
controls like buttons, labels, picture
Box, ImageMap etc –>
</div>
</form>
</body>
</html>
See here is a tab named Design in the bottom of this page
5- Click on this tab and you will see a blank web page where you can drag
any control from the toolbox (which is in the left side of this window)
Open Web.config file and write true in place of false, See
<compilation
debug="true">
6- Drag Two TextBox, Three Label, and one Button control …
7- Now go in Source code window and set your code like this…Please don’t be frustrate first see and
understand it’s really simple …
<asp:Label ID="Label1" runat="server"
Text="RangeValidator
Control"
Font-Bold="True"
Font-Size="Medium"
Font-Underline="True"></asp:Label>
<br />
<br />
<asp:Label ID="Label2" runat="server"
Font-Bold="True"
Font-Size="Small"
Text="Your Age:"></asp:Label>
{ This code is used to maintain the
expression for the TextBox1}
<asp:TextBox ID="TextBox1"
runat="server"
Width="172px"></asp:TextBox>
<asp:RangeValidator ID="RangeValidator1"
runat="server"
ControlToValidate="TextBox1"
ErrorMessage="Invalid Age. Please enter the age between 20 to
40."
MaximumValue="40" MinimumValue="20" Type="Integer"></asp:RangeValidator>
<br />
{This code is used to validate the textbox
to not to be leave blank TextBox1}
<asp:RequiredFieldValidator ID="RequiredFieldValidator1"
runat="server"
ControlToValidate="TextBox1" ErrorMessage="This field can not be blank."></asp:RequiredFieldValidator>
{ This code is used to maintain the
expression for the TextBox2 }
<asp:Label ID="Label3" runat="server"
Font-Bold="True"
Font-Size="Small"
Text="Date of Birth (YYYY/MM/DD format) :"></asp:Label>
<asp:TextBox ID="TextBox2" runat="server" Width="172px"></asp:TextBox>
<asp:RangeValidator ID="RangeValidator2" runat="server"
ControlToValidate="TextBox2"
ErrorMessage="Invalid DOB. It must be between 1988/1/1 to
2028/1/1."
MaximumValue="2028/1/1" MinimumValue="1988/1/1" Type="Date">
</asp:RangeValidator>
<br />
{ This code is used to maintain the
expression for the TextBox2 }
<asp:RequiredFieldValidator ID="RequiredFieldValidator2"
runat="server"
ControlToValidate="TextBox2" ErrorMessage="This field can not be blank.">
</asp:RequiredFieldValidator>
8- Now Run web-site Ctrl+F5.
OUT PUT
9- The web page should be look like this…
![Range Validator.bmp]()
13- Close web browser
14- Close visual studio
Thanks!
--Nikhil Kumar
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