Runtime binding change + unexpected event firing issue WPF - wpf

Question

I change binding at runtime with datatriggers in XAML like this:
<ToggleButton Checked="MinSyncX_OnChecked" Unchecked="MinSyncX_OnUnchecked" TargetUpdated="FrameworkElement_OnTargetUpdated"
Tag="{Binding Path=CameraViewDirection, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
ToolTip="{Binding Source={StaticResource CameraLocalization}, Path=ToolTips.SyncX, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}">
<ToggleButton.Style>
<Style TargetType="ToggleButton" BasedOn="{StaticResource CameraSyncCommonStyle}">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="0">
<Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMinTripleEnabled.X, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
<Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMinTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
</DataTrigger>
<DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="1">
<Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMaxTripleEnabled.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
<Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMaxTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
</DataTrigger>
<DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="2">
<Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsBothTripleEnabled.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
<Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsBothTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
<ToggleButton.Content>
<Image Source="{Binding Source={StaticResource CameraIcons}, Path=XAxis, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Image>
</ToggleButton.Content>
</ToggleButton>
Everything seems fine - binding really changes, but I have one issue which I don`t know how to solve:
When binding changed, MinSyncX_OnUnchecked event firing even if binded value is true which means that Toggle button must stays checked.
Firing of this event during binding switching braked my code, so I wish to now how to suppress this event during binding change if IsChecked property must be set to true.
A little tricky, but I hope you will understand my problem.
Edit
One thing I noticed that unchecked event ALWAYS fired if data trigger value switched to the first in list. Even it has a value=1 or value=2.
Does this by design or it can be fixed somehow?

Answer 1

I realise that I have twoway binding, so, when binding changed, my binded property receive value from button first (thats the reason why unchecked event firing). The solution I found is: lock logic of unchecked event by some bool value and switch that value back when binding changed (selection changed event on combobx in my case)