How can I tell a ComboBox to not influence the column width of the grid that it is in?
Here is a minimal example:
<StackPanel Orientation="Vertical">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Label>This is some text</Label>
<Label Grid.Row="1">This is some text</Label>
<GridSplitter Grid.Column="1" Grid.RowSpan="2" HorizontalAlignment="Stretch"/>
<Label Grid.Column="2" Background="Beige" HorizontalAlignment="Right">This is some text</Label>
<ComboBox Grid.Row="1" Grid.Column="2">
<ComboBoxItem IsSelected="True">This is some text</ComboBoxItem>
<ComboBoxItem>This is some really lengthy text that is really long</ComboBoxItem>
</ComboBox>
</Grid>
</StackPanel>
The ComboBox changes its size when the second item is selected, and together with it, the size of the third column is changed (as can be seen by the beige background of the label).
This also has the effect of the text in the beige label sometimes being outside of the visible area even though there is enough space to display it completely:
What I would want is that the third column always has the width of beige label (or any other element that is in the column and is not a ComboBox), and the ComboBox shortens its text so that it fits that width. The popup part of the ComboBox can be larger, I'm just talking about the button part here. I have tried setting up a ComboBox with TextBlock Content and TextTrimming set to CharacterEllipsis, but to no avail.
Here this should do it for you:
<StackPanel Orientation="Vertical">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Label>This is some text</Label>
<Label Grid.Row="1">This is some text</Label>
<GridSplitter Grid.Column="1" Grid.RowSpan="2" HorizontalAlignment="Stretch"/>
<Label x:Name="Label" Grid.Column="2" Background="Beige" HorizontalAlignment="Right">This is some text</Label>
<ComboBox Grid.Row="1" Grid.Column="2" Width="{Binding ElementName=Label, Path=ActualWidth, Mode=OneWay}">
<ComboBoxItem IsSelected="True">This is some text</ComboBoxItem>
<ComboBoxItem>This is some really lengthy text that is really long</ComboBoxItem>
</ComboBox>
</Grid>
</StackPanel>
Set MaxWidth of combobox control. It will allow combo box to expend to that value. If you want a fixed width then you need to set width property of combo box.
You can use the Width property of Combobox like
<ComboBox Grid.Row="1" Grid.Column="2" Width="200">
Also text wrapping may help you, following link has an example to how you can use text wrapping for combobox: ComboBox TextWrap Binding
Below is code for your reference
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
<ColumnDefinition Width="4*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<ComboBox HorizontalAlignment="Stretch" Grid.Column="1">
Related
This question already has answers here:
How do I make a WPF data template fill the entire width of the listbox?
(8 answers)
Closed 1 year ago.
I have a problem with my first ListView usage. My custom item should have (currently) 2 rows with 3 columns each containing a label (1st column width="Auto"), a textbox (fill-up 2nd column (tested with="" or width="100") and a button in the 3rd column (width="Auto")
Unfortunately the second column does not scale to use full Listview width but behaves like width="Auto".
Note that initially I used a StackPanel as top control in the DataTemplate and replaced it by a grid, just to check if it could solve the problem.
Testing the DataTemplate Grid in a test application directely in a window dows work as expected.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Label Content="Input Paths"/>
<ListView Grid.Row="1" ItemsSource="{Binding PathListAccess.PathList.PathList}">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<!--Row 0-->
<Label Grid.Row="0" Grid.Column="0" Content="Input Directory:"/>
<TextBox Grid.Row="0" Grid.Column="1" HorizontalAlignment="Stretch" Text="{Binding InputPath}"/>
<Button Grid.Row="0" Grid.Column="2" Content="..."/>
<!--Row 1-->
<Label Grid.Row="1" Grid.Column="0" Content="Output Directory:"/>
<TextBox Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" Text="{Binding OutputPath}"/>
</Grid>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
I think the problem is that the ListView default value for HorizontalContentAlignment is Left.
Try to set HorizontalContentAlignment to Stretch
<ListView Grid.Row="1" ItemsSource="{Binding PathListAccess.PathList.PathList}"
HorizontalContentAlignment="Stretch">
I am Using treeview in XAML. Inside the treeview item am having 3 grid columns. First Column in logo which is common width. but second and third column width is based on text which is binding from backend. The second column not resizing based on max width cell that particular column based on rows values.
Please refer below screenshot
I want this file location text (Gray text) start at same position based on previous column max cell width.
Below is my code
<HierarchicalDataTemplate
<Grid Grid.IsSharedSizeScope="True" HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="a"/>
<ColumnDefinition/>
<ColumnDefinition Width="Auto" SharedSizeGroup="b"/>
<ColumnDefinition/>
<ColumnDefinition Width="Auto" SharedSizeGroup="c"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Image Grid.Column="0" Width="12" Margin="0,0,4,0" Height="auto" Source="img.png""/>
<TextBlock Grid.RowSpan="5" Grid.Column="1" Text="{Binding kmkmkmkm}" Margin="0,7,0,0" Height="20" FontSize="12">
</TextBlock>
<TextBlock Grid.Column="2" Text="{Binding loc}" Margin="10,7,0,0" Height="20" FontSize="12" Foreground="Gray">
</TextBlock>
</Grid>
</HierarchicalDataTemplate>
Suggest me on this.
After analyzing many solution, found we cannot share like this with shared size scope.
<HierarchicalDataTemplate>
<Grid Name="Grid2" HorizontalAlignment="Left" Grid.IsSharedSizeScope="True">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0" Width="250">
</StackPanel>
<TextBlock HorizontalAlignment="Left" Width="Auto" VerticalAlignment="Center" Grid.Column="2">
</TextBlock>
</Grid>
</HierarchicalDataTemplate>
I'm trying to hide a column in a Grid with a GridSplitter when a button is clicked (the button sets the visibility of all items in the third column to collapsed). If I don't move the GridSplitter it works properly and the third column disappear, but if I move the GridSplitter the content disappear but the others columns don't resize to fill the empty space.
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="25"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="a" Width="*"/>
<ColumnDefinition x:Name="b" Width="3"/>
<ColumnDefinition x:Name="c" Width="Auto" MaxWidth="600"/>
</Grid.ColumnDefinitions>
<Border Grid.Column="0" Grid.Row="0" HorizontalAlignment="Stretch" Background="Green">
<Image Source="te/Dante.png" Height="Auto" Margin="0,128,2,71"/>
</Border>
<Button Grid.Column="0" Grid.Row="0" Width="30" Height="30" Margin="0,10,10,0" HorizontalAlignment="Right" VerticalAlignment="Top" Click="Button_Click"></Button>
<GridSplitter Width="5" Grid.Column="1" Grid.Row="0" Grid.RowSpan="2" ResizeDirection="Columns" HorizontalAlignment="Left" Background="White" BorderBrush="Black" BorderThickness="1,0" ResizeBehavior="PreviousAndCurrent"/>
<WrapPanel x:Name="wpC" Grid.Column="2" Grid.Row="0" Grid.RowSpan="2" MinWidth="300" HorizontalAlignment="Stretch" Background="Aqua" Panel.ZIndex="-1"></WrapPanel>
</Grid>
Here is an example of my problem (gif):
How can i solve this problem? Possibly respecting MVVM pattern.
The problem is simple, you set GridSplitter ResizeBehavior="PreviousAndCurrent", but previous grid column width is * and as soon as you move splitter its width units will be changed to absolute (so it will not be able to resize when 3d column width is changed).
Simply set GridSplitter ResizeBehavior="PreviousAndNext" to solve the problem. If you do so the splitter will modify width of 3d column, but shouldn't touch first one anymore.
Btw, instead of using button and click event you can utilize ToggleButton (which IsChecked is bound to Visibility of container with content you want to hide), see this answer. Using converters with pure xaml view is better MVVM than the one with some code behind and x:Name.
Right, you have few layout problems, here is a complete solution:
<Window.Resources>
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
</Window.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Border Background="Green" />
<ToggleButton x:Name="toggleButton"
Width="30"
Height="30"
Margin="0,10,10,0"
HorizontalAlignment="Right"
VerticalAlignment="Top" />
<Grid Grid.Column="1"
Visibility="{Binding IsChecked, ElementName=toggleButton, Converter={StaticResource BooleanToVisibilityConverter}}">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="300"
MinWidth="300"
MaxWidth="600" />
</Grid.ColumnDefinitions>
<GridSplitter Width="5"
ResizeBehavior="CurrentAndNext" />
<WrapPanel Grid.Column="1"
Background="Aqua" />
</Grid>
</Grid>
No need for code-behind, get converter from here.
Point are: 1) put splitter inside hide-able container 2) setup grid columns to have * and fixed width (splitter doesn't work well with auto columns).
Demo:
I current have a WPF application that contains a ListBox of Grid items.
These grids have 2 columns each and the first column contains text and the second one contains an ellipse.
My issue is that I currently have both ColumnDefinition set to have width of .5* so they each take 50% of the total width. However, this doesn't work when the text is too long or else it pushes the ellipse in the second column out of line with the rest of the ellipses in the list (looking vertically from top to bottom).
Basically this is what I get:
What I would like to happen is have all of the elipses in-line no matter how long the text in the first column is.
I've tried placing the first column's text inside of a ViewBox to auto-size it but that doesn't seem to work either.
Here is the full XAML for the DataTemplate:
<Grid x:Name="MainTermServListGrid">
<Grid.RowDefinitions>
<RowDefinition x:Name="MainTermServMainRow"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding TServer}" FontSize="15" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<Grid x:Name="OldPathGrid" Grid.Column="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width=".5*"/>
<ColumnDefinition Width=".5*"/>
</Grid.ColumnDefinitions>
<Viewbox Grid.Column="0" Stretch="Uniform">
<TextBlock Grid.Column="0">
<Run Text="Path: "/>
<Run Text="{Binding OldPath}"/>
</TextBlock>
</Viewbox>
<Ellipse Grid.Column="1" HorizontalAlignment="Center" Width="{Binding ElementName=MainTermServListGrid, Path=ActualHeight}" Fill="{Binding IsOldPathValid, Converter={StaticResource ValPthToBgClr}}"/>
</Grid>
<Grid x:Name="NewPathGrid" Grid.Column="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width=".5*"/>
<ColumnDefinition Width=".5*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0">
<Run Text="Path: "/>
<Run Text="{Binding NewPath}"/>
</TextBlock>
<Ellipse Grid.Column="1" Width="{Binding ElementName=MainTermServListGrid, Path=ActualHeight}" Fill="{Binding IsNewPathValid, Converter={StaticResource ValPthToBgClr}}"/>
</Grid>
</Grid>
You should take a look at SharedSizeGroup
Essentially:
<ItemsControl ItemsSource="{Binding SomeItems}"
Grid.IsSharedSizeScope="True">
<ItemsControl.ItemTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="ColA" Width=".5*" />
</Grid.ColumnDefinitions>
</Grid>
</ItemsControl.ItemTemplate>
</ItemsControl>
Using the SharedSizeScope and SharedSizeGroup, you can ensure columns / rows are the same size across different grids within the same containing scope
NOTE: It doesn't have to be an ItemsControl any container using the attached property Grid.IsSharedSizeScope will ensure that grids contained within will pay attention.
Simple code:
<ItemsControl Grid.IsSharedSizeScope="True" >
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="firstColumn" Width="Auto"/>
<ColumnDefinition SharedSizeGroup="splitterColumn" Width="Auto"/>
<ColumnDefinition SharedSizeGroup="lastColumn" Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Path=Key}"/>
<GridSplitter Width="5" Grid.Column="1" />
<TextBlock Text="{Binding Path=Value}" Grid.Column="2"/>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
Problem is occured with lastColumn, width of it is not 100%. I try to set HorizontalAlignment="Stretch" for the all grids but it didn't help.
Width of lastColumn must be 100%. How to resolve this issue?
You don't need to include SharedSizeGroup on every column. In this case, if your first and second columns are sharing a size, you should be able to get your desired behaviour by omitting the property on the last column. There should always be the same amount of space for the last column, if the first two columns are sharing sizes:
<Grid Width="300" Height="30" Background="Red">
<Grid Grid.IsSharedSizeScope="True">
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="firstColumn" Width="Auto"/>
<ColumnDefinition SharedSizeGroup="splitterColumn" Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Text="1" Grid.Column="0"/>
<GridSplitter Width="5" Grid.Column="1"/>
<TextBox Text="Test" Grid.Column="2" />
</Grid>
</Grid>
Edit: This is essentially the problem encountered here: Grid.IsSharedScopeSize incompatible with * columns in WPF Grid
Further edit: You've changed to an ItemsControl now, but the same should still apply.