Problems with Column content and GridSplitter - wpf

How can set the width of the content of the 1st 3rd or 5th columns, and still have the splitters work properly?
<Window
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:Infinity.Shell.Controls.Text;assembly=Infinity.Shell"
xmlns:dock="clr-namespace:Infinity.Shell.Controls.Docking;assembly=Infinity.Shell"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf" x:Class="Infinity.MainWindow"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="499.573" Background="#FF1E1E1E">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Button Content="First" Grid.Column="0"/>
<GridSplitter Grid.Column="1" Width="5" VerticalAlignment="Stretch" HorizontalAlignment="Center"/>
<Button Content="Second" Grid.Column="2"/>
<GridSplitter Grid.Column="3" Width="5" VerticalAlignment="Stretch" HorizontalAlignment="Center"/>
<Button Grid.Column="4" Content="Third"/>
</Grid>

Related

Why I can't resize the last Column width by GridSplitter?

Here is the XAML:
<Window x:Class="WpfApp1.MainWindow"
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:WpfApp1"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"></ColumnDefinition>
<ColumnDefinition Width="50"></ColumnDefinition>
<ColumnDefinition Width="50"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Border Background="Red"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5"></GridSplitter>
<Border Background="Green" Grid.Column="1"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5" Grid.Column="1"></GridSplitter>
<Border Background="Blue" Grid.Column="2"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5" Grid.Column="2"></GridSplitter>
</Grid>
</Window>
And I found that I can't resize the last Column width by the last GridSplitter.
In addition, all the other GridSplitter are working well.
Why it turns out to be this? And how can I solve this?
Thank you.

Try adding this to your Grid's RowDefinition as below (add an extra column with * as width to occupy remaining space).
<ColumnDefinition Width="*"></ColumnDefinition>
This is how your final Xaml looks like (only the content portion)
<Grid HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"></ColumnDefinition>
<ColumnDefinition Width="50"></ColumnDefinition>
<ColumnDefinition Width="50"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Border Background="Red"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5"></GridSplitter>
<Border Background="Green" Grid.Column="1"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5" Grid.Column="1"></GridSplitter>
<Border Background="Blue" Grid.Column="2"></Border>
<GridSplitter HorizontalContentAlignment="Stretch" Width="5" Grid.Column="2"></GridSplitter>
</Grid>
Try and let us know if this is what you are looking for or need some other kind of help.

Why does WrapPanel breaks Grid's ColumDefinitions?

This is a design I use often, a grid with columns of relative sizes (using the asterisk for width) so to mimic relative margins or other similar task.
An example of something similar to what I'm working on right now:
<Window x:Class="WpfApplication1.MainWindow"
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:WpfApplication1"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ShowGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Grid.Column="1" Text="1234567890123456789012345678901234567890123456789012345678901234567890" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="Wrap"/>
<TextBlock Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="3" Text="AAA" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="16" FontWeight="DemiBold"/>
</Grid>
</Grid>
</Window>
And this is its output
which is exactly what I expected.
But, if I just change the root Grid with a WrapPanel, like this:
<Window x:Class="WpfApplication1.MainWindow"
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:WpfApplication1"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<WrapPanel>
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ShowGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Grid.Column="1" Text="1234567890123456789012345678901234567890123456789012345678901234567890" VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="Wrap"/>
<TextBlock Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="3" Text="AAA" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="16" FontWeight="DemiBold"/>
</Grid>
</WrapPanel>
</Window>
then I get this:
Ok, there is obviously some difference in placement due to the WrapPanel layout system, and this is ok to me and even expected, but...what the heck it's happening to the columns?

The relative size of the columns cannot be calculated unless the Grid actually has a Width. I am not sure why you want to use a WrapPanel here but you could specify a fixed Width or MinWidth of the Grid:
<WrapPanel>
<Grid x:Name="grid" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ShowGridLines="True"
Width="300">

Adjust TextBlock on a Button within a Grid

I have two buttons on a grid. On the right button there should be some text shown left aligned and another text right aligned. In all my tries so far the two strings are positioned in the center of the button and not left and right.
Once this is solved I need some space between the text and the left/right borders of the button.
Who can help?
My XAML-code so far to start:
<UserControl x:Class="MyNamespace.MyClass"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="900">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Button>
<TextBlock Text="left button"></TextBlock>
</Button>
<Button Grid.Column="1">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock Text="left"></TextBlock>
<TextBlock Text="right" Grid.Column="1"></TextBlock>
</Grid>
</Button>
</Grid>
</UserControl>
Don´t blame me for not putting this stuff in a ResourceDictionary. Just wanted to make the example simple.

You need to add HorizontalContentAlignment="Stretch" to Button in order for contents to take up full space. After that, to make space between text and button borders, just add two more grid columns at first and last position.
XAML:
<UserControl x:Class="MyNamespace.MyClass"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="900">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Button>
<TextBlock Text="left button"></TextBlock>
</Button>
<Button Grid.Column="1" HorizontalContentAlignment="Stretch">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="10"/>
</Grid.ColumnDefinitions>
<TextBlock Text="left" Grid.Column="1"></TextBlock>
<TextBlock Text="right" Grid.Column="3"></TextBlock>
</Grid>
</Button>
</Grid>

GridSplitter to Resize from Right - Odd Behaviour

Using Kaxaml, resizing from the left works as expected.
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid>
<Grid HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
</Grid.ColumnDefinitions>
<GridSplitter Grid.Column="1" Width="5" Background="DarkGray" HorizontalAlignment="Right"></GridSplitter>
<Rectangle Grid.Column="0" Fill="Red" Height="100"/>
<Rectangle Grid.Column="1" Fill="Yellow" Height="100"/>
<Rectangle Grid.Column="2" Fill="Green" Height="100"/>
</Grid>
</Grid>
</Page>
However when trying something similar on the right it behaves very differently.
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid>
<Grid HorizontalAlignment="Right">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
</Grid.ColumnDefinitions>
<GridSplitter Grid.Column="1" Width="5" Background="DarkGray" HorizontalAlignment="Left"></GridSplitter>
<Rectangle Grid.Column="0" Fill="Red" Height="100"/>
<Rectangle Grid.Column="1" Fill="Yellow" Height="100"/>
<Rectangle Grid.Column="2" Fill="Green" Height="100"/>
</Grid>
</Grid>
</Page>
Oddly only dragging right works and the size happens in an almost inverse manner.

For the first column change Width="*" to Width="Auto".

Weird splitter behaviour when moving it

My demo app displays two rectangles which should fill whole browser's screen. There is a vertical splitter between them. This looks like a basic scenario but I have no idea how to implement this in xaml. I cannot force this to fill whole screen and when moving splitter then whole screen grows. Can anybody help?
<UserControl
xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"
x:Class="SilverlightApplication1.MainPage"
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"
mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480">
<Grid x:Name="LayoutRoot" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Border BorderBrush="Black" BorderThickness="1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" MinWidth="50">
</Border>
<controls:GridSplitter Grid.Column="1" VerticalAlignment="Stretch" Width="Auto" ></controls:GridSplitter>
<Border BorderBrush="Blue" BorderThickness="1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Grid.Column="2" MinWidth="50"></Border>
</Grid>
</UserControl>

GridSplitter just sucks. Try a docking control.

It is your column layout. You need star-sizing for the left and right columns, and auto for the middle:
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
EDIT:
The correct way of using a grid splitter (in this particular case) appears to be to use just two columns in the grid. The grid splitter should then be placed in the first column, but aligned to the right. Like so:
<Grid x:Name="LayoutRoot"
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Border BorderBrush="Black"
BorderThickness="3"
Margin="3,3,13,3"
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch"
MinWidth="50">
</Border>
<controls:GridSplitter Grid.Column="0"
VerticalAlignment="Stretch"
HorizontalAlignment="Right"
Width="10"></controls:GridSplitter>
<Border BorderBrush="Blue"
Margin="3"
BorderThickness="3"
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch"
Grid.Column="2"
MinWidth="50"></Border>
</Grid>

I find that splitter and auto width just don't work.

Here's a fun sample page with silverlight samples.
http://www.xs4all.nl/~wrb/Articles/Article_WPFSplitPanels_01_SL.htm

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