We Keep Coding

ContentPresenter - HorizonalAlignment not working

I have created a custom control for the simplified usage of label: control in forms:
My problem is that, no matter what is being put into my control content, I am unable to align it, using my template code. The only way it works is when I put HorizontalAlignment="Right" into the TextBox control directly:
<local:ControlEntry Label="Enter something">
<!-- I don't like having HorizontalAlignment here! -->
<TextBox Height="20" Width="200" HorizontalAlignment="Right" />
</local:ControlEntry>
However, I would rather want to do that behind the scenes in my control template.
I'm talking about this particular XAML code:
<Border x:Name="Container"
HorizontalAlignment="Stretch"
Grid.Column="1">
<ContentPresenter Width="{Binding ActualWidth, ElementName=Container}" HorizontalAlignment="Right" />
</Border>
First, I stretch the HorizontalAlignment, so what it would fill the width of the grid column cell, then I'm trying to apply the Right HorizontalAlignment on the ContentPresenter. Unfortunately, no effect is visible.
Full control code:
<Style TargetType="{x:Type local:ControlLine}">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:ControlLine}">
<!-- Create bottom content border -->
<Border BorderBrush="#000" BorderThickness="0,0,0,0.5">
<StackPanel>
<Grid>
<!-- Label -> Control -->
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<!-- Label -->
<TextBlock Grid.Column="0"
Margin="0,12,15,12"
VerticalAlignment="Center"
Text="{Binding Label, RelativeSource={RelativeSource TemplatedParent}}"
TextWrapping="WrapWithOverflow" />
<!-- Display content -->
<Border x:Name="Container"
HorizontalAlignment="Stretch"
Grid.Column="1">
<ContentPresenter Width="{Binding ActualWidth, ElementName=Container}" HorizontalAlignment="Right" />
</Border>
</Grid>
<!-- Description -->
<TextBlock Text="The control description" />
</StackPanel>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
How can I properly keep the width stretched and at the same time align the content of ContentPresenter to right?

WPF ProgressBar Width not sizing to Text

I am having an issue with the Microsoft WPF ProgressBar. I will set Width="Auto" and the width will size to the text width until a value property of ~97. Between values 97 and 100 the control will go exponentially larger until it hits MaxWidth.
The following style is setting the template for the ProgressBar. I can't seem to find anything that will cause it to behave until a Value of ~97. I do not touch the width in the code behind.
<Style x:Key="CurrentDayProgressBar" TargetType="{x:Type ProgressBar}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ProgressBar}">
<Grid>
<Border Name="PART_Track" CornerRadius="2" Background="DarkGray" BorderBrush="{DynamicResource TextBrush}" BorderThickness="1" />
<Border Name="PART_Indicator" CornerRadius="2" Background="{DynamicResource ProgressBarBackground}" HorizontalAlignment="Left" Margin="2" />
<TextBlock Name="PART_Text" Margin="2" Width="Auto" Padding="5,0,5,0" Text="{Binding RelativeSource={RelativeSource AncestorType=ProgressBar}, Path=Tag}"
Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center" Style="{DynamicResource SimpleTextBlock}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The first image below is what the bar looks like when it is at a Value of 99.2. The second is my implementation in the Telerik RadProgressBar, which behaves like I expect it to. The Telerik solution may be what I have to go with, but it would be nice to know why the Microsoft control is not working.
WPF ProgressBar Control
Telerik RadProgressBar and Textbox

The PART_Track cannot have any extra margins/borders attached to it and/or the PART_Indicator should be nested inside it. To resolve the problem you're having, do something like:
<Border CornerRadius="2" Background="DarkGray" BorderBrush="{DynamicResource TextBrush}" BorderThickness="1" />
<Border x:Name="PART_Track" Margin="3">
<Border Name="PART_Indicator" CornerRadius="2" Background="{DynamicResource ProgressBarBackground}" HorizontalAlignment="Left" />
</Border>
<TextBlock ... />

ScrollIntoView in GridView doesn't work

the ScrollIntoView() method does not work for me, but I was able to narrow the problem a little.
We have changed the style for the GridView as follows:
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridView">
<Border>
<ScrollViewer x:Name="ScrollViewer" >
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="38" />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" MinWidth="120"/>
</Grid.ColumnDefinitions>
<Border x:Name="NewGroupPlaceHolderFirst" Grid.Column="0" ... />
<ItemsPresenter Grid.Row="1" ... />
<Border x:Name="NewGroupPlaceHolderLast" Grid.Column="2" ... />
</Grid>
</ScrollViewer>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
When the ItemsPresenter stands alone within the ScrollViewers the method works.
but the borders are needed to create a new Group.
Is there a possible solution to get this method work?
regards,
oliver

You have to implement scrolling by yourself:
Find the ScrollViewer by examining the childrens of the GridView with the VisualTreeHelper.
Determine the horizontal/vertical offset of the item you want to scroll to.
Scroll to the position.
var offset = targetItem.TransformToVisual(scrollViewer).TransFormPoint(new Point(0,0)).X;
scrollViewer.ScrollToHorizontalOffset(offset);

WPF control develop idea

OK, I want to create a control that is like a Stackpanel with TextBlock on the left, something like:
The TextBlock need to be editable. So, the question is from whom I need to inherit to make that since cannot from Stackpanel?

That is basically a HeaderedItemsControl with a custom Template.
The template could be a Grid with two columns, one containing a rotated ContentPresenter which is bound to the header properties, on the right you would have an ItemsPresenter for the items.
e.g.
<Style TargetType="HeaderedItemsControl"> <!-- Implicitly applied -->
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="HeaderedItemsControl">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<ContentPresenter ContentSource="Header">
<ContentPresenter.LayoutTransform>
<RotateTransform Angle="-90"/>
</ContentPresenter.LayoutTransform>
</ContentPresenter>
<ItemsPresenter Grid.Column="1"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<HeaderedItemsControl Header="Lorem Ipsum" ItemsSource="ABCDEF"/>

How to change appearance of TabItems in a scrolling WPF TabControl?

I have a scrolling TabControl, using a ScrollViewer and StackPanel (with the StackPanel set as IsItemsHost="true"). To begin with, I am working from a solution originally outlined here - Creating Scrolling Tabs Using WPF's TabControl . At the moment it has broken links (Edit: I have tracked down one instance of his code in a forum here - How to prevent TabControl from doing multi rows?), so here is the xaml for the TabControl (does not require any further code):
<TabControl x:Name="TabControl2" Height="Auto" TabStripPlacement="Bottom" VerticalAlignment="Bottom" Template="{DynamicResource TabControlControlTemplate1}" IsSynchronizedWithCurrentItem="True">
<TabControl.Resources>
<Style x:Key="TabScrollerRepeatButtonStyle" TargetType="{x:Type RepeatButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1" Margin="1,0">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" Content="{TemplateBinding ContentControl.Content}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<ControlTemplate x:Key="TabControlControlTemplate1" TargetType="{x:Type TabControl}">
<Grid x:Name="Grid" KeyboardNavigation.TabNavigation="Local">
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="ColumnDefinition0"/>
<ColumnDefinition x:Name="ColumnDefinition1" Width="0"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition x:Name="RowDefinition0" Height="Auto"/>
<RowDefinition x:Name="RowDefinition1" Height="*"/>
</Grid.RowDefinitions>
<Border Grid.Row="1" Grid.Column="0" x:Name="ContentPanel" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,0,1,1" KeyboardNavigation.TabIndex="2" KeyboardNavigation.TabNavigation="Local" KeyboardNavigation.DirectionalNavigation="Contained">
<Border x:Name="Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
<Border Background="{TemplateBinding Background}" x:Name="Border1">
<ContentPresenter DataContext="{x:Null}" Margin="{TemplateBinding Padding}" x:Name="PART_SelectedContentHost" Content="{TemplateBinding SelectedContent}" ContentTemplate="{TemplateBinding SelectedContentTemplate}" ContentTemplateSelector="{TemplateBinding SelectedContentTemplateSelector}" ContentSource="SelectedContent"/>
</Border>
</Border>
</Border>
<ScrollViewer x:Name="HeaderPanel" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0,0,0,0" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
<ScrollViewer.Style>
<Style TargetType="{x:Type ScrollViewer}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid Margin="0,0,0,0" Grid.Row="0" Grid.Column="0" x:Name="HeaderPanel">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="20"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<RepeatButton Grid.Column="1" Content="<" Command="ScrollBar.LineLeftCommand" Style="{DynamicResource TabScrollerRepeatButtonStyle}" Visibility="{Binding Path=ComputedHorizontalScrollBarVisibility, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"/>
<ScrollContentPresenter Grid.Column="2" Content="{TemplateBinding ScrollViewer.Content}" />
<RepeatButton Grid.Column="3" Content=">" Command="ScrollBar.LineRightCommand" Style="{DynamicResource TabScrollerRepeatButtonStyle}" Visibility="{Binding Path=ComputedHorizontalScrollBarVisibility, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ScrollViewer.Style>
<StackPanel IsItemsHost="true" Orientation="Horizontal" Background="{x:Null}" KeyboardNavigation.TabIndex="1"/>
</ScrollViewer>
</Grid>
</ControlTemplate>
</TabControl.Resources>
<TabItem x:Name="TabItem1" Header="TabItem1"/>
<TabItem x:Name="TabItem2" Header="TabItem2"/>
</TabControl>
How might I adjust the appearance of each TabItem? For instance, I would like to place a TextBox and TextBlock inside each TabItem, with the help of a StackPanel, so that I can have renameable tabs (collapsing one or the other as appropriate). I might also want to add a close button on each tab. Ordinarily, I would use something like the following:
<TabControl.ItemTemplate>
<DataTemplate>
<StackPanel Name="panel" Orientation="Horizontal">
<TextBox Name="editHeader" Text="{Binding Header}" MaxWidth="250"/>
<TextBlock Name="textHeader" Text="{Binding Header}" />
</StackPanel>
</DataTemplate>
</TabControl.ItemTemplate>
.. but this is having no effect at all. Any ideas would be appreciated. Thanks.
Edit: I am still trying to figure this out. Is it possible that the solution could involve ContentPresenter and/or SelectedContentTemplate?
Edit 2: (this doesn't add value to my question) I really, really wish WPF included something of this sort out of the box. I am baffled by TabControl's default behavior, and by the fact that there is no scrollable TabControl (nor simple solution for attaining one) after some years.

Hey guesser. I've done something similar, I based mine off of this series though
http://www.blogs.intuidev.com/post/2010/post/2010/01/25/TabControlStyling_PartOne.aspx
The method used is to simply style the tabitems template. eg:
<TabControl.Resources>
<Style TargetType="{x:Type TabItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<!-- your custom template goes here -->
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TabControl.Resources>
Unforunately this method means you will have to completely redefine the way the tab items look and behave. But the provided link gives good examples on how achieve this.
Hope it helps.

Just a thought,
have you tried just adding the text block to the TabItem.Header? If you do this instead of a template it might work. Has for me in the past

I think I've got it (though still crossing fingers a bit -- I haven't yet dealt with Visibility of the TextBlock vs TextBox for renaming).
It is similar to Val's solution in that I'm working in TabControl.Resources on its TabItem, but the Property concerned is HeaderTemplate and I just override the ContentPresenter in a DataTemplate. (measures to avoid replacing\destroying a lot of good behavior that comes for free with the TabControl)
<TabControl.Resources>
<Style TargetType="{x:Type TabItem}">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<ContentPresenter>
<ContentPresenter.Content>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{TemplateBinding Content}"/>
<TextBox Text="{TemplateBinding Content}"/>
</StackPanel>
</ContentPresenter.Content>
</ContentPresenter>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</TabControl.Resources>
I'm somewhat of a WPF newb, so this is basically a result of persistent experimentation with what I could find Googling. For those interested, this link (on StackOverflow) helped me most in the end - WPF TabItem Header Styling