加载事件未触发

Question

I am rebuilding a project that I originally coded in SharpDevelop in Visual Studio. The relevant code worked in SharpDevelop.

The following steps should illustrate the problem:

1. Create a new project
2. Add a reference to System.Data.SQLLite (I am using the DLL for .NET 4.5)

3. In the main form, add the using statement:

   using System.Data.SQLite;

4. In the form's Load event, attach the event handler

     private void PriceType2_Load(object sender, EventArgs e) { MessageBox.Show("Load event hNDLER"); SQLiteConnection con; //con = new SQLiteConnection(); } 

That works, but if you uncomment the next line, it doesn't.

        private void PriceType2_Load(object sender, EventArgs e)
    {
        //SetDisableColors();
        //ToggleEnableOff();
        MessageBox.Show("Load event");
        SQLiteConnection con;
        con = new SQLiteConnection();

    }

The form opens, but the message box is not displayed. As I said, it works fine in SharpDevelop. And in case you're wondering, I am migrating the project because I need a grown up Report Viewer.

Any ideas?

Answer 1

I just changed the reference to the assembly for .NET 4.0 (although my dev machine and all my others have 4.5) and it works. I remembered reading somewhere that there was an issue with the 4.5 DLL, but I don't know what it was.

Thanks for all the pointers.