Greetings,

I have a form with a tab control. Tab1 has a "go" button tied to a class which retrieves values from databound comboboxes on tab2. I get an exception thrown if I hit "go" on tab1 without viewing tab2 first. How do I workaround this without having to show tab2 but make it's databound controls "active"

Hi ZionGates,

Based on my understanding, we can call the Show method of the second TabPage to force it to be initialized.

I also suggest modifying the logic to avoid getting values from controls on tabpage2. For example, we can create a BindingSource programmatically and initialize it on the Load event handler of the Form. Then we can bind that BindingSource to the ComboBox on tabpage2. Now we can directly retrieve value via The Current property of the BindingSource.

Regards,
Aland Li

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