ASP.net MVC 3 Alert messages cause error message on page. (Unable to display alerts)

Hi

This can mean many things.

What applicationpool(user) is running the app?
Does the webserver uses the same framework like .NET4,5 as on your developing machine?
Can you try using <customErrors mode="Off"/> between the <system.web> tags?

Do you see an error in the logfiles for this website?

It is a lot but most of the time not to difficult.

1 applicationpool, I might need a hand with this, not sure what you're speaking of.
2 yes I installed frameworks 4 and MVC 3
3 it was set to remote only, I changed it to off, published again, opened the site but it still displays the error.
4 not sure where to look for the log files, ..some direction ?

What does this line:

var msg = '@ViewData["Message"]';

Select allOpen in new window

...look like in the client-side source code?

Ok app pool is important.
In IIS select your website and click 'basic settings' on the right.
This will display your application pool, now in IIS (left on top) go to application pools and select properties for the app-pool you just found.
I expect to find a .NET 2.0 default apppool which doesnt work if your app is build on .NET4

(i am assuming you use IIS 7 or higher)

kaufmed: here's the line from the controller which populates the message of viewbag

if (Convert.ToInt32(DAL.Get_CurrentUsersProjectNo()) > 0)
            {
                ViewData["Message"] = "";
            }
            else
            {
                //err name
                string err_Name = "missing_project_number";
                Errors err_Display = new Errors();

                string errModel = err_Display.Get_Error_Display_Desc(err_Name);

                //Response.Redirect("Error.aspx");
                ViewData["Message"] = errModel;

            }


Patricksr1972:  here's the apppool settings, see attached.

the app pool was set to defaultapppool, I then changed it to .net 4.0, in the process of re-running it, stand by.
App-Pool.bmp

K, found the event viewer.  This is what it says:

3005
                  An unhandled exception has occurred.


IIS APPPOOL\DefaultAppPool
                  HttpException
                  A potentially dangerous Request.Path value was detected from the client (<). at System.Web.HttpRequest.ValidateInputIfRequiredByConfig() at System.Web.HttpApplication.PipelineStepManager.ValidateHelper(HttpContext context)




Changing the app pool setting I still get the error.

IIS APPPOOL\ASP.NET v4.0
                  HttpException
                  A potentially dangerous Request.Path value was detected from the client (<). at System.Web.HttpRequest.ValidateInputIfRequiredByConfig() at System.Web.HttpApplication.PipelineStepManager.ValidateHelper(HttpContext context)

I set the validaterequest - false in the config, then took it out and now I'm getting the error on my dev machine.

If you solved the issue yourself, then you would typically select your own comment as the solution.

kaufmed: as per your suggestion, Thank you all for helping me, much appreciated.