Wpf datagrid row validation not updating


07-Jan-2021 04:48

If you don’t specify a source explicitly by setting the Source property of the binding, it will inherit the Data Context from its parent element to use as its source.In a MVVM WPF application, the view model acts as the window’s Data Context: This means that that all controls inside the window will inherit its Data Context unless some parent element of a control overrides this by setting its own Data Context property.Error Template attached property of the control: Note that the Validation.

if you are typing a letter into a Text Box bound to a source property of type int: The actual message that is describing the error is stored in the Error Content property of a objects in it, another attached property named Validation. To be able to see the error messages in the view you can replace the default control template that draws the red border around the element with your own custom template by setting the Validation.

When I run through the loop once more, the same thing happens; the last row does not update with the current value, but displays the results of what should have been there from the previous calculation. This will help us to understand the exact scenario and to provide you with a working solution.



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