C#

<br />
        public void ListData()<br />
        {<br />
            // Check if we have a valid connection string<br />
            if ((_connectionString == "") || DesignMode)<br />
            {<br />
                // Exit<br />
                return;<br />
            }<br />
<br />
            // Begin update<br />
            BeginUpdate();<br />
<br />
            // Clear current list<br />
            Items.Clear();<br />
<br />
            // Declare variables<br />
            MySqlConnection connection = null;<br />
            MySqlDataReader reader = null;<br />
<br />
            // Search for all patients<br />
            try<br />
            {<br />
                ... some code to get the reader ...<br />
<br />
                // Fill dataset with adapter<br />
                reader = command.ExecuteReader();<br />
            }<br />
            catch (Exception)<br />
            {<br />
            }<br />
<br />
            // Check if we have a valid reader<br />
            if (reader != null)<br />
            {<br />
                // Check if we found at least one patient<br />
                if (reader.HasRows)<br />
                {<br />
                    // Add all records<br />
                    while (reader.Read())<br />
                    {<br />
                        Items.Add(reader["primaryKey"].ToString());<br />
                    }<br />
                }<br />
<br />
                // Close reader<br />
                reader.Close();<br />
            }<br />
<br />
            // Check if we have a connection<br />
            if (connection != null)<br />
            {<br />
                // Close connection<br />
                connection.Close();<br />
            }<br />
<br />
            // End update<br />
            EndUpdate();<br />
        }<br />

Geert van Horrik wrote:

Still, the code is way to slow (why doesn't the thing already draw itself when I ask it to).

Geert van Horrik wrote:

However, I can't show the main form in the splash screen since that is handled in a separate thread

public SplashAppContext(Form mainForm, Form splashForm) : base(splashForm)
{
    this.mainForm = mainForm;
    mainForm.Show();

    splashTimer.Tick += new EventHandler(SplashTimeUp);
    splashTimer.Interval = 2000;
    splashTimer.Enabled = true;
}

private bool init=true;
protected override void OnPaint(PaintEventArgs e)
{

    base.OnPaint (e);

    if(init)
    {
        init=false;
        this.Hide();
    }
}

Geert van Horrik wrote:

Thanks for helping me out on this one!

Geert van Horrik wrote:

But the combobox is already being filled during the splashscreen

<br />
                // Run application<br />
                Application.Run(MainForm.GetInstance());<br />