What is the difference between <%#%> and <%=%>?

Categories >> Software >> Microsoft Related >> ASP.NET
Suggest New Category

Question Posted / lakshmi

5 Answers
10217 Views
IBS, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is the difference between <%#%> and <%=%>?..

Answer / archana

The <%= expressions are evaluated at render time
The <%# expressions are evaluated at DataBind() time and
are not evaluated at all if DataBind() is not called.

Is This Answer Correct ?

8 Yes

0 No

What is the difference between <%#%> and <%=%>?..

Answer / amit kumar

<%# %> is used for databinding
like <%#Eval("id") %>OR <%#Bind("id") %>
<%=%> is used only for printing something
like <%= DateTime.Now.ToString()%>

Is This Answer Correct ?

3 Yes

0 No

What is the difference between <%#%> and <%=%>?..

Answer / vinodh reddy

I was a little confused about the difference between <%=
expression %> and <%# expression %> in ASP.NET. It seems
like both work in a lot of cases, but in other cases, only
the # (data binding) version works. So, I decided to dig
into it a little bit. To try it out I built this simple
page:

<%@ 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>Untitled
Page</title></head><body> <form id="form1"
runat="server"> <div> <p>Equals: <%=
this.TestValue %></p> <p>Pound: <%# this.TestValue %
></p> <p>Equals label: <asp:Label runat="server"
ID="_equals" Text="<%= this.TestValue %>" /></p>
<p>Pound label: <asp:Label runat="server" ID="_pound"
Text="<%# this.TestValue %>" /></p> </div>
</form></body></html>
And the code behind is:

public partial class _Default : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e)
{ _testValue = "2"; } protected void
Page_PreRenderComplete(object sender, EventArgs e)
{ // DataBind(); _testValue = "3"; }
public string TestValue { get { return
_testValue; } } private string _testValue = "1";}
Here's what the result is when the DataBind() line is
commented out:

Equals: 3

Pound:

Equals label:

Pound label:

And, when it's not commented out:

Equals: 3

Pound: 2

Equals label:

Pound label: 2

At first glance it looks like the Equals label case did
nothing. But, if you view source, you see:

<p>Equals label: <span id="_equals"><%= this.TestValue %
></span></p>

The literal expression made it down to the browser and it's
just invalid HTML. What you can see as a result is:

The <%= expressions are evaluated at render time
The <%# expressions are evaluated at DataBind() time and
are not evaluated at all if DataBind() is not called.
<%# expressions can be used as properties in server-side
controls. <%= expressions cannot.

Is This Answer Correct ?

0 Yes

0 No

What is the difference between <%#%> and <%=%>?..

Answer / hr@tgksolutions.com

While === examines both equality and data type—that is, a value must be of the same type—the == operator merely checks equality.

Is This Answer Correct ?

0 Yes

0 No

What is the difference between <%#%> and <%=%>?..

Answer / ravindarjobs

have a look at this link

http://blogs.msdn.com/dancre/archive/2007/02/13/the-
difference-between-lt-and-lt-in-asp-net.aspx

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More ASP.NET Interview Questions

Define state managenent?Descibe state managenent technique which maintain the information at server site focusing it IDS features and limitations?

1 Answers

What are the difference between ASP and ASP.Net?

4 Answers Accenture, Mphasis,

can we remote debug applications with the remote debugger installed with vs.net 2002, with vs.net 2003?

0 Answers

How many web config files can be created for an application?

0 Answers

What is the difference between a cookie and a pixel?

0 Answers

Briefly describe different techniques for ASP.NET State Management?

6 Answers Deloitte, Syntax Softtech,

You have been given the task of designing a web services to expose the data that is stored in a database on the server. In order to successfully build the web services, you need to import some namespaces. What is the minimum namespace you need to import? a) System.Web b) System.WebServices c) System.Web.Services d) System.Web.ServiceModel

2 Answers Syntax Softtech,

Is data edited in the Repeater control?

0 Answers Siebel,

Mention the execution process for managed code?

0 Answers

What are the advantages of asp.net mvc framework? : asp.net mvc

0 Answers

If Asp Dot Application is stateless what happened? during designing

3 Answers TCS,

How to register exception filter globally?

0 Answers

For more ASP.NET Interview Questions Click Here