Home/ Questions/Q 8082613
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-05T17:10:16+00:00

So that’s a long title, here’s what I’m doing: To avoid having report parameters

  • 0

So that’s a long title, here’s what I’m doing: To avoid having report parameters show up in the URL I’m doing this in a button click handler in the code-behind to show the report:

System.Web.HttpContext.Current.Response.Clear();
System.Web.HttpContext.Current.Response.Write("<html><head></head>");    
System.Web.HttpContext.Current.Response.Write("<body onload=\"document.mainform.submit(); \">");
System.Web.HttpContext.Current.Response.Write(string.Format(CultureInfo.InvariantCulture, "<form name=\"mainform\" method=\"post\" action=\"{0}\">", ReportURL));
foreach (string key in Params.Keys)
{
    System.Web.HttpContext.Current.Response.Write(string.Format(CultureInfo.InvariantCulture, "<input name=\"{0}\" type=\"hidden\" value=\"{1}\">", key, Params[key]));
}
System.Web.HttpContext.Current.Response.Write("</form>");
System.Web.HttpContext.Current.Response.Write("</body></html>");

This works great, but when I go back from the report I’m taken to the page I just generated which immediately submits the form due to the onload event. I can hit back twice really quickly to go back past it but this isn’t ideal.

I’ve tried opening a new window with JavaScript using ClientScript.RegisterStartupScript before writing the html but I don’t know how (or if it’s even possible) to get the HttpContext for the new window.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I ended up opening a new window. I added two small javascript functions

    function openNewWin() {
    $('form').attr('target', '_blank');
    setTimeout('resetFormTarget()', 500);
}

function resetFormTarget() {
    $('form').attr('target', '');
}

    Then in the linkbutton I set

    OnClientClick="openNewWin();"

    The OnClick still executes the code above server-side but the response is written to the new window. The setTimeout in the openNewWin function resets the form’s target property so the app will still function normally after coming back to it.

    • 0