Web Forms :: JavaScript Confirm Box Server Side Perform Operation On OK And Cancel

Aug 4, 2012

I need to dispay confirm box on server Side.. senario is like Im Trying To upload Image During Upload Im Checking some properties like Image type,image size, etc.. While Uploading i want to check properties like

if(type=="xxxx")
{
confirmbox("  ");
if(confirmvalue=="yes")
{
next condition
}
else
{
exit ;
}
}

like this i want check different properies of file.. how can i do this

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