Catch HttpRequestValidationException MVC

Question

I am using below code to catch HttpRequestValidationException. But the problem is it navigates to different Page.

I want to show "Invalid Input" Error Message on the same page where user is entering the information and clicking on Submit button.

protected void Application_Error(object sender, EventArgs e)
{
    var context = HttpContext.Current;
    var exception = context.Server.GetLastError();
    if (exception is HttpRequestValidationException)
    {            
        Response.Clear();
        Response.StatusCode = 200;
        Response.Write(@"<html><head></head><body>Invalid Input</body></html>");
        Response.End();
        return;
    }
}

Are you using ASP.NET MVC? – thetipsyhacker May 17 '16 at 18:25 — thetipsyhacker, May 17 '16 at 18:25

thetipsyhacker · Answer 1 · 2016-05-18T00:19:17.473

-1

You can use a try/catch block:

protected void Application_Error()
{
    var context = HttpContext.Current;
    var exception = context.Server.GetLastError();

    try
    {
        //Operations you need to perform
    }
    catch (HttpRequestValidationException)
    {
      //Output Error
    }
}

edited May 18 '16 at 00:19

answered May 17 '16 at 19:21

thetipsyhacker

1,402
4
18
39

There is no object `ModelState` on `HttpApplication`. This code mode literally no sense. – Erik Philips May 17 '16 at 23:52
@ErikPhilips Made a mistake. Wasn't thinking when I added the ModelState error. – thetipsyhacker May 19 '16 at 16:06

Catch HttpRequestValidationException MVC

1 Answers1