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??



what is the value that reside in a hidden field when no value is assigned to it?how it can be used..

Answer / rupinder

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 1 No

Post New Answer

More ASP.NET Code Interview Questions

How to get Dynamically Linked Comboboxes Set?

0 Answers   HCL,


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??

1 Answers  


How to get the row index on checking a Checkbox in a ListView

1 Answers   TCS,


Code for Communicating over Sockets?

0 Answers  


How we use ajax in asp.net through javaScript. Please givee me an example.

0 Answers  






What do you create for easier access of data?

3 Answers   NIIT,


how to design a ListView control?

1 Answers  


How we implement the paypal in my website and how we make a payment through Credit Card.

2 Answers  


Code for Creating a Form Using PlaceHolder Controls?

0 Answers   Arena, JSA,


Listview design in .net

1 Answers  


what is software testing

1 Answers   TCS,


Common UI for Multiple web applications. Suppose there are 35 websites using same third party controls.These 3rd party controls are made together that all 35 websites can use these controls.If we put all 3rd party controls and use its dll in 35 websites,only class files will be accessable. But I want to use CSS,images also in all 35 websites. how I can design the N-tier solution for this project.

0 Answers   TCS,


Categories
  • ASP.NET Code Interview Questions ASP.NET Code (46)
  • VB.NET Code Interview Questions VB.NET Code (9)
  • C Sharp Code Interview Questions C Sharp Code (51)
  • ADO.NET Code Interview Questions ADO.NET Code (8)