changing textbox.value does not change value in the db?

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A. Peters - 27 Sep 2008 13:23 GMT

Hello!
I've got a litte (but I think often asked question). How can I change
the Value of a TextBox, that the binded column is updated too?

If I wrote "testTextBox.Value = "Murks";" it doesnt change the Value in
the Database. Only when I change the value direkt in the Form.

Greetings
Alex

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Morten Wennevik [C# MVP] - 29 Sep 2008 06:26 GMT

> Hello!
> I've got a litte (but I think often asked question). How can I change
[quoted text clipped - 5 lines]
> Greetings
> Alex

Hi Alex,

If changing a value in the form updates something and doing it
programmatically does not, it is probably a case of a missing notification.
Assuming you have bound the Text property of the testTextBox you can force a
binding update.

testTextBox.DataBindings["Text"].WriteValue();

For the records, if you are updating a business object programmatically and
the changes aren't reflected on screen, have the business object implement
INotifyPropertyChanged and fire a PropertyChanged event upon property changes.

Signature

Happy Coding!
Morten Wennevik [C# MVP]

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