Object reference not set to an instance of an object. on Form.Close()

[andrea96]

I am getting the error "Object reference not set to an instance of an object." when I try to close an MDI child form with

Me.Close()

It seems anything I try to do to the form at this point in the code gets the same error (ex. Me.Hide() and Me.WindowState = FormWindowState.Minimized). Everything else in the form seems to work fine up to this point.

Any ideas?

Thanks,
Andrea

 

[andrea96]

Nevermind. I figured it out.

 

[DMAN3021]

I'm getting this same error, what did you figure out?

Dman...

 

[andrea96]

The error wasn't actually occurring on the me.close(), even though that is how it appeared when I stepped through the program in debug. When I closed this form, I was really getting an error on a DataSet when another form was Activated.

The reason I didn't find it earlier was that the debugger was not showing me that the code in the Activated Sub was executing, even though I was stepping through line by line. It appeared to skip the code in the Activated Sub, but was still executing it. I had to put a breakpoint at the beginning of every Sub and Function to figure out what was getting executed when the form closed.

I don't know if this is a setting I have incorrect in the IDE that is causing this, or something else.

Andrea