Question

There is a relatively simple thing I’m trying to achieve but I’m unsure how to do it. Basically, I have a CLR class as follows:

class SomeClass
{
    public SomeEnum Status;
}

public enum SomeEnum { One, Two, Three };

I’ve got a DataGrid that I’m binding an ObservableCollection<SomeClass> programmatically through the code-behind. In this DataGrid I have a DataGridTemplateColumn containing two buttons, as follows:

<toolkit:DataGridTemplateColumn Header="Actions">
    <toolkit:DataGridTemplateColumn.CellTemplate>
    <DataTemplate>
    <StackPanel Orientation="Horizontal">
        <Button Content="ActionOne" />
        <Button Content="ActionTwo" />
    </StackPanel>
    </DataTemplate>
</toolkit:DataGridTemplateColumn.CellTemplate>
</toolkit:DataGridTemplateColumn>

What I want to do is bind the IsEnabled property of these buttons to a comparison based on the value of {Binding Path=Status}. For example, in pseudocode:

ActionOne.IsEnabled = BoundValue.Status != SomeEnum.Two
ActionTwo.IsEnabled = BoundValue.Status == SomeEnum.One || BoundValue.Status == SomeEnum.Two

Is there anyway to do this in XAML? The alternative would be just to write a value converter for each button, but since the content and other details of the button may vary, too, I don’t want to end up writing like 6 value converters.

Cheers!

Answer 1

Why not expose additional Properties in SomeClass that performs the comparison logic?

ex:

public bool ActionOneEnabled
{
    get { return Status != SomeEnum.Two; }
}

Then you can easily bind the Button’s IsEnabled to the appropriate Property.

Don’t forget to include an OnPropertyChanged(“ActionOneEnabled”) in your setter for Status – so that when your Status changes your Properties based on Status are re-evaluated.