Calling javascript from a C# condition?

[Guest]

How can I call my javascript from within my C# "IF" statement?
I have a function called dirError() that only displays an alert:

function dirError()
{
alert('Bad directory');
}

From my C# code, I want to do this:
if (fileEntries.Length <= 0)
{
//CALL javaScript function dirError
}

Any help is appreciated.

Thanks.

 

[Nicholas Paldino [.NET/C# MVP]]

VMI,

This is assuming you are running in ASP.NET. You can't call the
javascript function. Rather, you need to inject the javascript code into
the page returned.

Hope this helps.

 

[Guest]

VMI,
since your Javascript function is client-side code, the only way you can
make a call to it from server-side code is to inject the call as client
script into the page. Here is an example:

if (fileEntries.Length <= 0)
{
Response.Write("<script>dirError();</script>");
}