Potash Valley

Some users don't realize that when a long query is executing, they should not hit a button again. It can sometimes make an application to crash, for instance if it's a delete button.

To prevent this scenario, here is a script that you can embed with every page. It requires jQuery and ASP.NET Ajax.

var delay = 500; // milliseconds

function pageLoad() {
    Sys.WebForms.PageRequestManager.getInstance().add_endRequest( function() {
        requesting = false;
        $(":input[type=submit]").removeAttr('disabled');
    });

    Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(function() {
        requesting = true;
        setTimeout(function() {
            if (!requesting) return;
            $(":input[type=submit]").attr('disabled', 'disabled');
        }, delay); 
    });
}