UWP TextBox won't stretch in StackPanel - xaml

Question

I have a TextBlock and TextBox controls inside StackPanel, and I need to stretch TextBox to resize by the parent size in UWP.
<StackPanel Grid.Column="0" Grid.Row="1" Orientation="Horizontal">
<TextBlock Text="Name:" VerticalAlignment="Center" Width="130" />
<TextBox VerticalAlignment="Center" HorizontalAlignment="Stretch" />
</StackPanel>
This not works.. Any ideas?

Answer 1

The problem is the stack panel will only stretch to the size of the child elements so in your example you will only see one Textblock of 130 pixels and you will not see the TextBox.
To get the functionality you desire you should use a grid with two columns one 130 pixels and the other being * to fill up the entire column space that is available.
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="Name:" VerticalAlignment="Center" Width="130" />
<TextBox Grid.Row="0" Grid.Column="1"/>
</Grid>

Answer 2

I usually wrap a TextBlock and TextBox pair inside a DockPanel
<DockPanel Grid.Column="0" Grid.Row="1" >
<TextBlock Text="Name:"
VerticalAlignment="Center"
Margin="5"
/>
<TextBox VerticalAlignment="Center"/>
</DockPanel>
Edit
For UWP which doesn't have DockPanel:
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid Grid.Column="0" Grid.Row="1" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Text="Name:"
VerticalAlignment="Center"
Margin="5"
/>
<TextBox Grid.Column="1"
VerticalAlignment="Center" HorizontalAlignment="Stretch" />
</Grid>
</Grid>

Answer 3

I worked out a similar problem in UWP
<StackPanel Margin="{StaticResource SmallTopBottomMargin}" Orientation="Vertical">
<TextBlock Text="Project Name:" />
<TextBox /> <--full width
<TextBlock Text="Exported Template:" /> <--full width
<Grid HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="auto"/>
</Grid.ColumnDefinitions>
<TextBox /> <--max width - button width
<Button Grid.Column="1">...</Button>
</Grid>