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Categories  >>  Code Snippets  >>  Programming Code  >>  Dot Net Code  >>  ASP.NET Code
 
 


 

 
 ASP.NET Code interview questions  ASP.NET Code Interview Questions
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 ADO.NET Code interview questions  ADO.NET Code Interview Questions
Question 
what is the value that reside in a hidden field when no 
value is assigned to it?how it can be used in a if 
statement??
 Question Submitted By :: Prakash Kuttappan
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the value that reside in a hidden field when no value is assigned to it?how it can be used in a if statement??
Answer
# 1		 
If No value assigned to a hidden field then it contains 
String.Empty value.

Habling empty value:

<%@ Page Language="VB" AutoEventWireup="true" 
CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 
1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Demo</title>
</head>
<body>
    <form id="form1" runat="server">          
<asp:HiddenField ID="hndField" runat="server" />
           </form>
</body>
</html>

Code behind...
  Protected Sub Page_Load(ByVal sender As Object, ByVal e 
As System.EventArgs) Handles Me.Load

        If hndField.Value <> String.Empty Then
do......
        End If
    End Sub
 
Is This Answer Correct ?    2 Yes 0 No
Rupinder
 

 
 
 
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