Wednesday 3 August 2016

validate two textbox values using compare validator in asp.net

compare_validator.aspx.cs

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="compare_validator.aspx.cs" Inherits="our_program.compare_validator" %>

<!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>
    <center><h1>compare validator</h1></center>

    <script runat="server">

      void Button_Click(Object sender, EventArgs e) 
      {

         if (Page.IsValid) 
         {
            lblOutput.Text = "Result: Valid!";
         }
         else 
         {
            lblOutput.Text = "Result: Not valid!";
         }

      }

      void check_operator(Object sender, EventArgs e) 
      {

          Compare1.Operator = (ValidationCompareOperator)listbox1.SelectedIndex;
         Compare1.Validate();

      }
      
   </script>
</head>
<body>
    <form id="form1" runat="server">
    <center>
    <div style="height: 167px">
    <asp:TextBox ID="txt1" runat="server" ></asp:TextBox>
    <br />
    <asp:TextBox ID="txt2" runat="server" ></asp:TextBox>
    <br/>
    <asp:ListBox ID="listbox1" runat="server"  OnSelectedIndexChanged="check_operator" Height="131px" Width="125px" >
                  <asp:ListItem Selected="True" Value="Equal">Equal</asp:ListItem>
                  <asp:ListItem Value="NotEqual">NotEqual</asp:ListItem>
                  <asp:ListItem Value="GreaterThan">GreaterThan</asp:ListItem>
                  <asp:ListItem Value="GreaterThanEqual">GreaterThanEqual</asp:ListItem>
                  <asp:ListItem Value="LessThan">LessThan</asp:ListItem>
                  <asp:ListItem Value="LessThanEqual">LessThanEqual</asp:ListItem>

    </asp:ListBox>
    <br />
       <asp:Button id="Button1" Text="Validate" OnClick="Button_Click" runat="server"/>

    <asp:Label id="lblOutput" Font-Names="verdana" Font-Size="10pt" runat="server"/>


     <asp:CompareValidator id="Compare1" ControlToValidate="txt1" ControlToCompare="txt2" EnableClientScript="False" Type="Integer" runat="server"/>

    </div>
    </center>
    </form>
</body>
</html>

compare_validator.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace our_program
{
    public partial class compare_validator : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {


        }

        
    }
}

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