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ASP.NET web page goes blank with JavaScript alert()

, 17 Oct 2011 CPOL 17.3K 4
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How to fix the issues when an ASP.NET web page goes blank with JavaScript alert() .

An ASP.NET web page goes blank if you inject the JavaScript alert(); function using Response.Write from the code-behind. Here is a fix for it.

private void ShowMessage(string message)
		String scriptMessage = "<script language="'javascript'">function window.onload(){alert('" + message + "');}</script>";
		if (!ClientScript.IsClientScriptBlockRegistered("MyMessage"))
			ClientScript.RegisterClientScriptBlock(this.GetType(),"MyMessage", scriptMessage.ToString());


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


About the Author

aspnet -i
Web Developer
India India
Software developer by profession, working for a service and product based organisation in India.

Career graph:
Software Programmer since 2002.
Web Developer in ASP.NET since 2004.

I love reading the blogs and articles of technology experts. I love codeproject and stackoverflow .

I love to share knowledge and help the programmers. I appreciate if some body corrects my code or my concepts which helps me learn.

Comments and Discussions

GeneralI have faced same problem with alert() function. what is re... Pin
udusat1316-Oct-11 20:06
memberudusat1316-Oct-11 20:06 

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