Focus is not set properly after clicking include/exclude comboBox

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Steps to Reproduce

1. Start Weevil
2. Open a log file
3. try to click on the Inclusive or Exclusive filter comboboxes

Expected Result

• CombBox should receive focus.

Actual Result

• CombBox does not receive focus.

Background

This bug started immediately after upgrading MaterialDesignInXaml to 4.1

At this point it might be worthwhile to consider downgrading.

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Relates to: #36

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Observations

• Does not appear to be an Enabled problem.
• there is a small area on the far left of the ComboBox
  • if you click here, you can set the focus
  • the remaining 95% of the visual area to the right... clicking does nothing
• HINT: this might be a WPF style related problem

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Caused by: #32

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Relates to Material Design In Xaml: ComboBox XAML

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Observations

In the MdixComboBoxBehavior WPF behavior, when you add the following you will see that the toggleButton takes up the entire width of the control.

• button.Background = Blue;

When you move the mouse to the far left side of the ComboBox you will see that the control will accept focus (i.e. it's clickable). I am fairly certain that this is the TextBox portion of the ComboBox control.

• PART_EditableTextBox

WPF Snoop shows that the textboxes MinWidth = 10

• Using Snoop, make the MinWidth = 100... and now the clickable area of the ComboBox is bigger.
• Might be able to set this property dynamically using:
  • MinWidth="{Binding Path=ContentMinWidth, RelativeSource={RelativeSource AncestorType=wpf:ComboBoxPopup}}

Solutions

1. Try to fix the behavior using XAML & attached behaviors.
2. Create a custom ComboBox using
   • TextBox : for data input (i.e. current filter)
   • Button : to display the list of choices (i.e. filter history)
3. Rollback to MaterialDesignInXaml 4.0
4. Other?

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Solution

The simplest solution was to rollback the MaterialDesignThemes NuGet package back to version v4.0.0.

• It appears that a change was made to the ComboBox in v4.0.1. As a result, click messages are no longer forwarded down to the TextBox when you click on the ComboBox control.