Compare Validator
Happy Programming!!!
In this article, I’m going to explain about the compare
validator. The compare validator is used to compare the values entered in a one
input control with another constant value or value entered against in another
control.
Copy and paste the following code into the .aspx page:
Copy and paste the following code into the .aspx page:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="CompareValidator.aspx.vb"
Inherits="CompareValidator" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td>
Age From:
</td>
<td style="font-family: Verdana;">
<asp:TextBox ID="txtAgeFrom" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
Age To:
</td>
<td>
<asp:TextBox ID="txtAgeTo" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<asp:CompareValidator ID="CompareValidator1" runat="server" ErrorMessage="Compare with Constant : Age From must be greater than 0"
Operator="GreaterThan" ControlToValidate="txtAgeFrom" ValueToCompare="0" Type="Integer"></asp:CompareValidator>
</td>
</tr>
<tr>
<td colspan="2">
<asp:CompareValidator ID="CompareValidator2" runat="server" ErrorMessage="Compare with Another Control Value : Age To should be greater than Age From"
Operator=" GreaterThan" ControlToValidate="txtAgeTo" ControlToCompare="txtAgeFrom"
Type="Integer"></asp:CompareValidator>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Output:
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