I'm using a HeaderedItemsControl to show person names. I also want to show a header that contains 3 labels: Title, First Name and Last Name. This is easy when the names are short.
However, when there is a very long firstname, the header's don't match the names anymore. How can I fix this? Thank you!
Not sure if you really want to use this class:
A HeaderedItemsControl has a limited default style. To create a HeaderedItemsControl with a custom appearance, create a new ControlTemplate.
Anyway, to line up stuff you can use Grids with shared size, e.g.:
<HeaderedItemsControl ItemsSource="{Binding Data}" Grid.IsSharedSizeScope="True">
<HeaderedItemsControl.Template>
<ControlTemplate TargetType="HeaderedItemsControl">
<StackPanel>
<ContentPresenter ContentSource="Header" />
<ItemsPresenter />
</StackPanel>
</ControlTemplate>
</HeaderedItemsControl.Template>
<HeaderedItemsControl.Header>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="A" />
<ColumnDefinition SharedSizeGroup="B" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="Name" />
<TextBlock Grid.Column="1" Text="Occupation" />
</Grid>
</HeaderedItemsControl.Header>
<HeaderedItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="A" />
<ColumnDefinition SharedSizeGroup="B" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Name}"/>
<TextBlock Grid.Column="1" Text="{Binding Occupation}" />
</Grid>
</DataTemplate>
</HeaderedItemsControl.ItemTemplate>
</HeaderedItemsControl>
Related
I am trying to align data with the headers in a WPF application. The headers a line up and spaced nicely. However, I cannot get the data items underneath to line up with the headers. Any suggestions?
I have been poking around a bit, but have not found a solution to my problem. I do have to stick with list box as it is part of the requirements. Also, I am new to WPF.
Here is what the output is:
And here is the xaml that I am using:
<Grid Grid.Row="2">
<ListBox ItemsSource="{Binding MyData}">
<ListBox.Template>
<ControlTemplate>
<StackPanel>
<Grid Grid.IsSharedSizeScope="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" x:Name="ToteNumber"></ColumnDefinition>
<ColumnDefinition Width="*" x:Name="Desription"></ColumnDefinition>
<ColumnDefinition Width="*" x:Name="Time"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="Tote Number" HorizontalAlignment="Center"/>
<TextBlock Grid.Column="1" Text="Description" HorizontalAlignment="Center"/>
<TextBlock Grid.Column="2" Text="Time" HorizontalAlignment="Center"/>
</Grid>
<ItemsPresenter></ItemsPresenter>
</StackPanel>
</ControlTemplate>
</ListBox.Template>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Border BorderThickness="1" BorderBrush="Black">
</Border>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Property1}" HorizontalAlignment="Stretch"/>
<TextBlock Grid.Column="1" Text="{Binding Property2}" HorizontalAlignment="Stretch"/>
<TextBlock Grid.Column="2" Text="{Binding Property3}" HorizontalAlignment="Stretch"/>
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
You need to set Grid.IsSharedSizeScope="True" on a parent panel and you need to identify the SharedSizeGroup on each column so it knows which column in your listbox template grid corresponds to which one in your itemtemplate.
Note that I think * width is treated as Auto when you apply Sharedsizegroup.
I use width auto and minwidth instead when I've done something similar.
You may find you need to bind width of each column to some parent measuring grid or calculate minwidth using a converter based on ViewportWidth of the scrollviewer in your listbox.
<Grid Grid.Row="2" Grid.IsSharedSizeScope="True">
<ListBox ItemsSource="{Binding MyData}">
<ListBox.Template>
<ControlTemplate>
<StackPanel>
<Grid Grid.IsSharedSizeScope="True">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" SharedSizeGroup="A" x:Name="ToteNumber"></ColumnDefinition>
<ColumnDefinition Width="*" SharedSizeGroup="B" x:Name="Desription"></ColumnDefinition>
<ColumnDefinition Width="*" SharedSizeGroup="C" x:Name="Time"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="Tote Number" HorizontalAlignment="Center"/>
<TextBlock Grid.Column="1" Text="Description" HorizontalAlignment="Center"/>
<TextBlock Grid.Column="2" Text="Time" HorizontalAlignment="Center"/>
</Grid>
<ItemsPresenter></ItemsPresenter>
</StackPanel>
</ControlTemplate>
</ListBox.Template>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Border BorderThickness="1" BorderBrush="Black">
</Border>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" SharedSizeGroup="A"></ColumnDefinition>
<ColumnDefinition Width="*" SharedSizeGroup="B"></ColumnDefinition>
<ColumnDefinition Width="*" SharedSizeGroup="C"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Property1}" HorizontalAlignment="Stretch"/>
<TextBlock Grid.Column="1" Text="{Binding Property2}" HorizontalAlignment="Stretch"/>
<TextBlock Grid.Column="2" Text="{Binding Property3}" HorizontalAlignment="Stretch"/>
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
As I mentioned, I use a similar technique in some of my own markup. For that I put the headers grid and then the listbox with an itemtemplate in a stackpanel.
<StackPanel>
<Grid>
Headers
<ListBox>
ItemTemplate
</StackPanel>
Sounds like that doesn't suit whatever is driving your requirements though.
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25*" />
<ColumnDefinition Width="49*" />
<ColumnDefinition Width="25*" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="1" Margin="30" VerticalAlignment="Center">
<StackPanel Orientation="Horizontal">
<TextBlock Margin="0,0,5,0" Text="Username:" />
<TextBox HorizontalAlignment="Stretch"/>
</StackPanel>
</StackPanel>
--Result image--
Im trying to make it so that the textbox will fill the rest of the space inside the current StackPanel.
however the "Stretch" propety doesn't seem to work - why is that?
Is there a different way do it or what am I doing wrong?
A StackPanel always tries to achieve the minimum possible height/width, depending on orientation; therefore, Stretch has no effect. You might want to use a DockPanel instead, which allows children to stretch:
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25*" />
<ColumnDefinition Width="49*" />
<ColumnDefinition Width="25*" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="1"
Margin="30"
VerticalAlignment="Center">
<DockPanel>
<TextBlock DockPanel.Dock="Left" Margin="0,0,5,0"
Text="Username:" />
<TextBox HorizontalAlignment="Stretch"/>
</DockPanel>
</StackPanel>
</Grid>
How to refer MaxWidth="??" of TextBlock to stpMessage ActualWidth?
<StackPanel Name="stpMessage" Orientation="Horizontal" Margin="0,5,0,0">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<TextBlock Margin="0,0,0,0" Foreground="Blue" TextWrapping="Wrap">#ToUserName</TextBlock>
<StackPanel Grid.Column="1">
<TextBlock Margin="5,0,0,0" Text="{Binding Path=Text}" MinHeight="20" MinWidth="200" HorizontalAlignment="Stretch" MaxWidth="1000"
VerticalAlignment="Stretch" TextWrapping="WrapWithOverflow">START skf skdjf skdj hfskdjf ksdjhf ksjdhf ksjhf kjsf kjshf kjshkjfhsdf kjsfdkj hskdfj hskdjf hskdjf skjhfksjfks END</TextBlock>
</StackPanel>
</Grid>
</StackPanel>
The problem with this is that StackPanels do not limit the size of their children, so will grow as much as their children need
Change your StackPanel to a control that limits the size of it's children, like a Grid (or wrap it in another control) and then use an ElementName binding to bind to the ActualWidth property of that control
<Grid Name="stpMessage" ... />
...
<TextBlock MaxWidth="{Binding ElementName=stpMessage, Path=ActualWidth}" ... />
...
</Grid>
I have this scenario where I want to share the column size among all the ListViewItems, and I'm using SharedSizeGroup on the column definitions but it doesn't work:
<ListView ItemsSource="{Binding}">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="A" />
<ColumnDefinition Width="Auto" SharedSizeGroup="B" />
<ColumnDefinition Width="Auto" SharedSizeGroup="C" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Margin="10,0" Text="{Binding Text1}" />
<TextBlock Grid.Column="1" Margin="10,0" Text="{Binding Text2}" />
<TextBlock Grid.Column="2" Margin="10,0" Text="{Binding Text3}" />
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I know a possible solution is using a GridView as the ListView.View, but there's a few design issues that prevent us from doing this. Is there any other way I can achieve sharing the column widths?
This is what I want to achieve (the columns with the same colors should share width):
Thanks in advance.
The only thing that is missing is the scope i think, add Grid.IsSharedSizeScope="True" to the ListView attributes.
I am using a grid by the definition of appropriateness defined in this question Grid vs Stackpanel. However when working with grids you have to define the controls position inside them explicitly in the grid. This becomes a pain when having to reorder controls or when adding a new control to the grid. With the code provided as an example, is there a way to get the rows and columns for the text and text boxes to line up while being easy to modify or expand later?
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*"/>
<ColumnDefinition Width="7*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<TextBlock Text="Value One:" Grid.Row="0" Grid.Column="0"/>
<TextBox x:Name="TextBoxOne" Grid.Row="0" Grid.Column="1"/>
<TextBlock Text="Value Two:" Grid.Row="1" Grid.Column="0"/>
<TextBox x:Name="TextBoxTwo" Grid.Row="1" Grid.Column="1"/>
<TextBlock Text="Value Three:" Grid.Row="2" Grid.Column="0"/>
<TextBox x:Name="TextBoxThree" Grid.Row="2" Grid.Column="1"/>
</Grid>
I wrote a custom control I use that makes it extremely easy to do this, but before I created it I generally used this sort of thing:
<ControlTemplate x:Key="ColumnsTemplate" TargetType="HeaderedContentControl">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*" />
<ColumnDefinition Width="7*" />
</Grid.ColumnDefinitions>
<ContentPresenter Grid.Column="0" ContentSource="Header" />
<ContentPresenter Grid.Column="1" />
</Grid>
</ControlTemplate>
<ItemsControl ... ItemTemplate="{StaticResource ColumnsTemplate}">
<HeaderedContentControl Header="Value One:">
<TextBox x:Name="TextBoxOne" />
</HeaderedContentControl>
<HeaderedContentControl Header="Value Two:">
<TextBox x:Name="TextBoxTwo" />
</HeaderedContentControl>
...
</ItemsControl>
This allows easy add/remove of items from the ItemsControl, or better yet, data binding.
If you prefer auto-sizing on the grid rather than star sizing (3* and 7*) you can use a shared sizing scope by setting IsSharedSizeScope on the ItemsControl and SharedSizeGroup on the first ColumnDefinition.
Another option is GridView, but I find it more difficult to use for this purpose.