how to call javascript function from code behind in c#

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i want to call javascript alert function showalert() based on condition in code behind.
My code :
if (CheckBox1.Checked == false)
{
----
}
else
{
button.Attributes.Add("onclick", "javascript:return ShowAlert();");
response.redirect("#");
}
but it's not working.

Posted 17-Mar-13 22:14pm

sukumari1

Updated 17-Mar-13 22:15pm

v2

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Jameel VM 18-Mar-13 4:20am

where is your showalert() function?

3 solutions

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Shubham Choudhary · Answer 1 · 2013-03-17T22:30:00

Solution 1

Hi!!! take a look of this link!!
Call to javascript Function from code behind using ScriptManager.RegisterStartupScript[^]

http://www.aspdotnet-suresh.com/2010/08/calling-javascript-function-from.html[^]

Posted 17-Mar-13 22:30pm

Shubham Choudhary

Nitin S · Answer 2 · 2013-03-18T00:12:00

Solution 2

use ClientScriptManager.RegisterStartupScript Method

http://msdn.microsoft.com/en-us/library/system.web.ui.clientscriptmanager.registerstartupscript.aspx[^]

Posted 18-Mar-13 0:12am

Nitin S

Hidayat Meman · Answer 3 · 2013-03-18T00:13:00

Solution 3

button.Attributes.Add("OnClientClick", "javascript:return ShowAlert();");

C#

txtItemName.Attributes.Add("OnKeypress", "return FocusOnEnterAll('" & txtDescription.ClientID & "',event);")

Posted 18-Mar-13 0:13am

Hidayat Meman

Updated 18-Mar-13 0:20am

v3