Serverside alert problem

Question

5.00/5 (1 vote)

See more:

dear all,
i have write this code for alert in serverside but give me fololwing errors.

JavaScript

Response.Write("<script language='javascript' type='text/javascript'>alert('This EmailID Allready Exist. Please Enter valid EmailID')</script>")

Error message:-Sys.WebForms.PageRequestManagerParserErrorException: The message received
from the server could not be parsed. Common causes for this error are when the
response is modified by calls to Response.Write(), response Details: Error
parsing near '<script language='Ja'.

Thanks n regards,

Posted 23-Apr-12 23:41pm

DINESH K MAURYA

Updated 24-Apr-12 2:14am

v4

Add a Solution

Comments

Rahul Rajat Singh 24-Apr-12 8:35am

This problem is because of escape characters. i tried putting the right thing here but the CP autoformat seems to be messing it up again. so lemme tell you

use @ character in the beginning of string starting with ". and inside that only use ' and not ". and it will work fine.

Mohamed Mitwalli 24-Apr-12 8:44am

agree with you i face this problem , this will be useful too
Response.Write("<script>alert('This EmailID Allready Exist. Please Enter valid EmailID')</script>");
it will work fine .

8 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

jkirkerx · Answer 1 · 2012-04-24T18:41:00

You can't response.write literal values in asp.net. Back in the old days, folks would use response.write to create HTML in classic ASP.

The proper way to do it is to use onClientClick, which will fire your Javascript first, before firing a handler such as a postback event, that way you can cancel the postback if the Javascript doesn't like the value.

button.onClientClick = "alert('This EmailID Already Exist. Please Enter valid EmailID'; return false;)"

That will fire the message box in Javascript, but best practice is to actually write a more complex Javascript function, that will validate the data, and then fire the messagebox, and return true to fire the postback event, or false to cancel it.

One of the proper uses for response.write is to respond to a HTTP page request in code, and reply response.write( "Error 500" ).

Dev-0001 · Answer 2 · 2012-04-24T21:17:00

Solution 9

I believe all solution there Right

Posted 24-Apr-12 21:17pm

Dev-0001

uspatel · Answer 3 · 2012-04-24T00:11:00

Solution 1

Try as

C#

Page.RegisterStartupScript("StatusMessage", "<SCRIPT LANGUAGE='JavaScript'>alert('This EmailID Allready Exist. Please Enter valid EmailID');</Script>");

Posted 24-Apr-12 0:11am

uspatel

santosh pabba · Answer 4 · 2012-04-24T00:18:00

Solution 2

Page.RegisterStartupScript("StatusMessage", "<SCRIPT LANGUAGE="'JavaScript'">alert('This EmailID Allready Exist. Please Enter valid EmailID');</Script>");

Use above or

C#

ScriptManager.RegisterStartupScript(this, GetType(), "msg", "alert('This EmailID Allready Exist. Please Enter valid EmailID');", true);

Posted 24-Apr-12 0:18am

santosh pabba

Comments

DINESH K MAURYA 24-Apr-12 7:26am

thanks for
but this code not working in serverside
i have try this ...
please suggest me .

Mohamed Mitwalli 24-Apr-12 8:36am

just write like this
Response.Write("<script>alert('This EmailID Allready Exist. Please Enter valid EmailID')</script>");

AmitKumar89 · Answer 5 · 2012-04-24T02:25:00

Solution 4

Hi,

Try this, just use GetType() in Page client script..

C#

this.Page.ClientScript.RegisterStartupScript(GetType(), "dd1", "<script language='javascript'>alert('This EmailID Allready Exist. Please Enter valid EmailID');</script>");

It may help you..

Posted 24-Apr-12 2:25am

AmitKumar89

Mohamed Mitwalli · Answer 6 · 2012-04-24T02:26:00

Hi ,
try this Note when i ADD Pre tags it make it like this language="'javascript'" and this will give error
Just Remove those "" from language='javascript'

C#

Response.Write("<script language='javascript' type='text/javascript'>alert('This EmailID Allready Exist. Please Enter valid EmailID')</script>");

OR
like this

C#

Response.Write("<script>alert('This EmailID Allready Exist. Please Enter valid EmailID')</script>");

Best regards
M.Mitwalli

Anuj Banka · Answer 7 · 2012-04-24T02:28:00

C#

Page.ClientScript.RegisterStartupScript(GetType(), "ScriptKey", "alert('" + strMsg + "')", true);

And if you are using ajax(script manager and update panal) then use this..

ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), Guid.NewGuid().ToString(), "alert('" + strMsg + "');", true);

Michael_Jacsi · Answer 8 · 2012-04-24T06:36:00

Solution 7

Try this one its may work...

string errormsg = "<script>alert('This EmailID Allready Exist. Please Enter valid EmailI')</script>";
            Label lblerror = new Label();
            lblerror.Text = errormsg;
            Page.Controls.Add(lblerror);

[edit] added code tags [/edit]

Posted 24-Apr-12 6:36am

Michael_Jacsi

Updated 24-Apr-12 11:56am

v2