wVersion.xaml

<platformui:DialogWindow  xmlns:platformui="clr-namespace:Microsoft.VisualStudio.PlatformUI;assembly=Microsoft.VisualStudio.Shell.15.0"
                          
                          x:Class="oVersion.wVersion"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:oVersion" xmlns:system="clr-namespace:System;assembly=System.Runtime"
                          mc:Ignorable="d" 
             Title="oVersion"  Height="400" Width="650" ResizeMode="NoResize" WindowStartupLocation="CenterOwner" ShowInTaskbar="False">
    <Grid>
        <DockPanel Margin="10">

            <StackPanel HorizontalAlignment="Center" Orientation="Horizontal" DockPanel.Dock="Bottom">
                <Button Content="Save" x:Name="b_save" Width="120" Margin="20"/>
                <Button Content="Cancel" x:Name="b_cancel" Width="120" Margin="20"/>
            </StackPanel>
            <TextBlock x:Name="h_count" DockPanel.Dock="Top" Text="Selected Projects : *"  Margin="5"/>
            <StackPanel  DockPanel.Dock="Top" Orientation="Horizontal"  Margin="5">
                <ComboBox x:Name="c_version" Width="160"  Margin="3" VerticalAlignment="Center" SelectedIndex="2">
                    <ComboBoxItem Content="Assembly Version"></ComboBoxItem>
                    <ComboBoxItem Content="Assembly File Version"></ComboBoxItem>
                    <ComboBoxItem Content="Assembly + File version"></ComboBoxItem>
                </ComboBox>
                <local:VersionTextField x:Name="t_major"   Margin="3" PreviewTextInput="NumberValidationTextBox"/>
                <local:VersionTextField x:Name="t_minor"   Margin="3" PreviewTextInput="NumberValidationTextBox"/>
                <local:VersionTextField x:Name="t_build"  Margin="3" PreviewTextInput="NumberValidationTextBox"/>
                <local:VersionTextField x:Name="t_rev"    Margin="3" PreviewTextInput="NumberValidationTextBox"/>
            </StackPanel>
            <ListBox x:Name="lst" SelectionMode="Extended"/>


        </DockPanel>
    </Grid>
</platformui:DialogWindow>