Display JS alert or Message Box for Invalid login

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How to get Java script alert or Message box in Asp.net. For me the requirement is 'If the caller enters invalid user name or password, I need to show the warning message in Message box' . Please assist me on this.Thanks in Advance.

Posted 21-Nov-12 3:42am

Vignesh.J

Updated 21-Nov-12 3:43am

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Member 9581488 · Answer 1 · 2012-11-21T03:55:00

Solution 1

Try Using Boolean values in your function.
if the login is successful return true
if not return false and alert your message.

You can call this javascript function from C# code behind on login button_click event

Posted 21-Nov-12 3:55am

Member 9581488

Guptha Ch · Answer 2 · 2012-11-21T04:36:00

Solution 2

Window.alert("Error Message");

Posted 21-Nov-12 4:36am

Guptha Ch