Revit.Plugln/FWindSoft/Test/PathTest/WinPathText.xaml

<Window x:Class="Test.PathTest.WinPathText"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Test.PathTest"
        mc:Ignorable="d"
        Title="WinPathText" Height="300" Width="300">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <TextBox x:Name="txtBase" Grid.Row="0"></TextBox>
        <TextBox x:Name="txtRelative" Grid.Row="1"></TextBox>
        <TextBox x:Name="txtResult" Grid.Row="2" IsReadOnly="True"></TextBox>
        <Button Grid.Row="3" Click="Button_Click"></Button>
    </Grid>
</Window>