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DataBinding not updating underlying business object when changing control property from code

Posted By:      Posted Date: October 06, 2010    Points: 0   Category :WPF

I have a custom data form control that in code generates databindings between the selected custom business object (LLBL) and the various controls on the screen. Everything works in that I set the DataContext to the selected business object and the data appears in the GUI. If the user changes anything on screen, the data is getting updated into the business object.

However, now I have some custom logic that when the user presses a button I need to update some fields. Currently I'm setting this data directly into the controls, setting the new value into the property that is bound. However, the data is not getting pushed back into the business object.  I had this same issue building WinForm apps in that databinding only fired if the user was in the control and left it.

Does the same thing apply to WPF? How can I get ANY change on say a TextBox's Text property whether via user interaction or from C# code to push that value into the bound business object property?


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