Exception Handling in C# for ASP.NET FormView

Question

I am trying to do some error handling in item inserting for my formview. If anyone forgets to enter a value in tutorial section, the error message will detect it is null and give a popup of it being null. however, my visual studio does not recognize Exception or ExceptionHandled. The error is that there is no definition for Exception. I have searched high and low and I don't know what the problem is. Any ideas will be appreciated.

protected void FormView1_ItemInserting(object sender, FormViewInsertEventArgs e)
{

    if (e.Exception != Null)
    {
        string msg = "";
        if (e.Exception.Message.Containts("NULL"))
        {
            msg = "Tutorial Section cannot be empty.";
        }
        else
            msg = "unknown";
        ClientScript.RegisterStartupScript(this.GetType(), "myalert", "window.setTimeout(\"alert('" + msg + "')\",0);", true);
        e.ExceptionHandled = true;
    }
}

what you are saying I guess means validation rather error handling. — Md Ashaduzzaman
– Md Ashaduzzaman, Commented Jan 12, 2015 at 10:49
that's not it. I just want to know how come the e.Exception is not recognized. — Negar
– Negar, Commented Jan 12, 2015 at 10:55
@NegarNegaru it simply doesn't exists. FormViewInsertEventArgs Class — dario
– dario, Commented Jan 12, 2015 at 10:56
I see. I assumed since it exists in listview it should exist in formview as well. Thanks. — Negar
– Negar, Commented Jan 12, 2015 at 11:50

Nkosi · Accepted Answer · 2018-05-06 20:15:34Z

1

protected void FormView1_ItemInserting event has no Exception

You have to use Inserted event handler, not Inserting event!

Like this:

protected void FormView1_ItemInserted(object sender, FormViewInsertedEventArgs e)
{
    if (e.Exception != null)
    {
        Label1.Text = "Error : " + e.Exception.Message;

        e.ExceptionHandled = true;
    }
     else
     {
        Label1.Text = "Inserted Successfully";
     }
}

edited May 6, 2018 at 20:15

Nkosi

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answered May 6, 2018 at 20:10

Md Shahriar

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