Question

Simple question. I have a MainForm and a settingsForm. The settings form is initialized once and then shown every time the user clicks a button. I need it to do something when this button is clicked.

m_inputSettings.ShowDialog(this); //edit settings selected, so show that form

This is the MainForm calling the settings form, which it does fine. But I need the SettingsForm to do something every time this happens. Presently, I cant figure out if this call actually triggers any events I can set handlers for. Does it trigger an event? If not, is there another way I can tell my SettingsForm to do something every time this call happens?

Note: Any code in the mainform after that line doesn’t get executed until the SettingsForm returns, but that is intentional.

Thanks.

Edit: One of the things I want my form to do it select a specific control when this happens, but it seems that that is impossible until after the form is done loading everything.

Answer 1

You can override the OnVisibleChanged method in your settings form. Make sure to call base.OnVisibleChanged though as to not screw up any potential observers of the event (and anything else the base class may do inside of that method.)