I've an windows form application in c# vs 2005.

When I click on a link that opens up a tabControl I get the "Error creating window handle.". Now there are 4 tabPages all with ~10 lables and ~10 textBoxes and ~2 comboBoxes, the comboBoxes all has their comboBox.DataSource = an arry of objects, the objects has about 12 strings/int's. Now these ArrayLists should for the future be able to contain maybe thousands of these objects.

I need help on how to solve this one. I do not want to reuse the same textBoxes or something like that for frankly it aint that many of those.

All help would be appreciated.

My problem was this:

            comboBox_FindCustomerByName.SelectedIndex = -1;
            comboBox_FindCustomerByName.Text = "Sök kund";

and

            comboBox_FindCustomerByNumber.SelectedIndex = -1;
            comboBox_FindCustomerByNumber.Text = "Sök kund";

Are in the same class but in different methods. I hade FindCustomerByNumber changes in the FindCustomerByName method instead of FindCustomerByNumber method and vice versa. Silly mistake. However, how that could generate the error I got is beyond me and would be interresting to know.