Error Handling using Application_Error event in Global (asax) file in ASP.Net MVC

ramco191...

SOLVED CLOSED ACTIVE ANSWERED
User: ramco1917
Posted: on Jul 06, 2021 10:55 PM
Forum: ASP.Net MVC
Answer: 2
Views: 18673
Sample Code: Download

Error Handling in ASP.Net MVC

I deliberately changed Stored Procedure Name. I am able to Log error message in Database. But i want that some message should also get displayed to user.

With this code it is not displaying any message to User.

View

@ViewBag.ErrorMessage

Controller

public class ErrorController : Controller
{
    public ActionResult Index(string message)
    {
        ViewBag.ErrorMessage = message;
        return View();
    } 
}

Global.asax

protected void Application_Error(object sender, EventArgs e)
{
    Exception exception = Server.GetLastError();
    Response.Clear();
 
    HttpException httpException = exception as HttpException;
 
    if (httpException != null)
    {
        string action;
 
        switch (httpException.GetHttpCode())
        {
            case 404:
                // page not found
                action = "HttpError404";
                break;
            case 500:
                // server error
                action = "HttpError500";
                break;
            default:
                action = "General";
                break;
        }
 
        // clear error on server
        Server.ClearError();
 
        Response.Redirect(String.Format("~/Error/{0}/?message={1}", action, exception.Message));
    }
}

Below is the Class where error is comning

public List<Location> GetAllLocation()
{
    List<Location> objLocation = new List<Location>();
    try
    {
        using (SqlConnection con = new SqlConnection(Common.Con))
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("sp_Location1", con);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@Action", "R");
            SqlDataReader rdr = cmd.ExecuteReader();
            while (rdr.Read())
            {
                objLocation.Add(new Location
                {
                    Id = rdr["Id"].ToString(),
                    Description = rdr["Description"].ToString(),
                    IsActive = Convert.ToBoolean(rdr["IsActive"]),
                });
            }
        }
    }
    catch (Exception ex)
    {
        ExceptionLogging.SendExcepToDB(ex);
    }
    return objLocation;
}

Thanks

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dharmend...

0 2

Reply
ANSWER
User: dharmendr
Replied: on Jul 07, 2021 02:14 AM
Modified: on Jul 08, 2021 12:37 AM
Report

Hi ramco1917,

Check this example. Now please take its reference and correct your code.

Controller

Home

public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        AccessDb.GetData();
        return View();
    }
}

Error

public class ErrorController : Controller
{
    // GET: Error
    public ActionResult Index()
    {
        return View();
    }

    [HttpGet]
    public ActionResult Index(string message)
    {
        ViewBag.ErrorMessage = message;
        return View();
    }

    [HttpGet]
    public ActionResult HttpError404(string message)
    {
        Response.StatusCode = 404;
        return View();
    }

    [HttpGet]
    public ActionResult HttpError500(string message)
    {
        Response.StatusCode = 500;
        return View();
    }
}

Global.asax

protected void Application_Error(object sender, EventArgs e)
{
    Exception exception = Server.GetLastError();
    if (exception != null)
    {
        string action = "";
        int code = (exception is HttpException) ? (exception as HttpException).GetHttpCode() : 1;
        switch (code)
        {
            case 404:
                // page not found
                action = "HttpError404";
                break;
            case 500:
                // server error
                action = "HttpError500";
                break;
            default:
                action = "Index";
                break;
        }

        // clear error on server
        Response.Clear();
        Server.ClearError();

        Response.Redirect(string.Format("~/Error/{0}/?message={1}", action, HttpUtility.UrlEncode(exception.Message)));
    }
}

View

Home > Index

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    
</body>
</html>

Error > Index

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <h3>@ViewBag.ErrorMessage</h3>
</body>
</html>

Class File

public static class AccessDb
{
    public static void GetData()
    {
        int i = int.Parse("test");
    }
}

dharmend...

0 5

Reply
ANSWER
User: dharmendr
Replied: on Jul 08, 2021 12:40 AM
Report

Remove the try catch.

ramco1917 says:

ExceptionLogging.SendExcepToDB(ex);

Write the ExceptionLogging.SendExcepToDB(ex) inside the Application_Error event.

protected void Application_Error(object sender, EventArgs e)
{
    Exception exception = Server.GetLastError();
    if (exception != null)
    {
        Response.Clear();
        HttpException httpException = exception as HttpException;
        if (httpException != null)
        {
            string action = "Index";

            // clear error on server 
            Response.Clear();
            Server.ClearError();
            ExceptionLogging.SendExcepToDB(exception.Message);
            Response.Redirect(String.Format("~/Error/{0}/?message={1}", action, exception.Message));
        }
    }
}

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Error Handling using Application_Error event in Global (asax) file in ASP.Net MVC

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