Width parse error

[ShannonZ]

Source code for this issue github

• Reproduce
  

• Expected Results
  The width of editor in different tab items should be corrected!
  If I use a standard WPF TabControl, like this:

it works fine. So I guess it's related to Mahapps, maybe due to the funny animation transition when you change tabs.

[punker76]

@ShannonZ I think this is a problem of SoftFluent.Windows. If I put a NUD in a Tab all is fine.

[punker76]

@ShannonZ If I replace the NUD with a TextBox then I get the same result.

[ShannonZ]

@punker76 In SoftFluent.Windows, the width of the second column of DataGrid was simply set to be "*". <DataGridTemplateColumn Header="Value" Width="*">
in PropertyGrid.xaml #line 219) . Nothing else was done~

[punker76]

The problem is maybe, that the second one isn't visible on start. But all this happens also without MahApps.

[ShannonZ]

@punker76 I think you should using an NUD in DataGrid to reproduce this issue. And in my machine, when putting NUD in the last column of a DataGrid cell, the width seems to be not fixed.

Demo(I used SF)
Click more than one times of the "change" button, you will see the same code produce different results.

If you start a project from scratch and add a standard WPF TabControl, like this(Should use Window instead of MetroWindow):

<TabControl>
    <TabItem  Header="SF1" >
        <windows:PropertyGrid x:Name="pg1" Grid.Column="0"  ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Hidden" />
    </TabItem>
    <TabItem Header="SF2" >
        <windows:PropertyGrid x:Name="pg2" Grid.Column="0"  ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Hidden" />
    </TabItem>
</TabControl>

it works fine. So I guess it's related to Mahapps, maybe due to the funny animation transition when you change tabs.

[punker76]

@ShannonZ If I deactivate the Expander MahApps style the issue is gone, so I will investigate what's going wrong with this.

[ShannonZ]

@punker76 Thanks for your kindness work! And the great MahApps will become more perfect.