Develop Reference

WPF - Change Scrollbar's margin of a TextBox using Styles

I have a defined an implicit style for Scrollbar and set some properties and I use it for most ScrollViewrs. Part of the Style is :
<Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
<Setter Property="Background" Value="#FF283542" />
<Setter Property="Margin" Value="0,-32,0,0" />
<Setter Property="Width" Value="5" />
</Style>
But I have some TextBoxes which I want them to have the same implicit Scrollbar style for their Scrollbars but with a diffrent margin.
I can do it by adding Resources to every TextBox and override the implicit ScrollBar style like :
<TextBox Style="{StaticResource big-text-style}">
<TextBox.Resources>
<Style TargetType="{x:Type ScrollBar}"
BasedOn="{StaticResource {x:Type ScrollBar}}">
<Setter Property="Margin" Value="0"/>
</Style>
</TextBox.Resources>
</TextBox>
This code gives me the functionality I want. But the problem with this approach is that I have to write these lines of code of every TextBox! It would be much better if I could put this as part of the TextBox style itself.
I wonder is there a way to put it in the TextBox's Style so that every TextBox which has big-text-style(for example), have the overriden ScrollBar ?
Or is there a better way to implement this kind of thing ?
Thank you for the help!

You can add the overriding ScrollBar style to the Resources of the TextBox style itself:
<Style x:Key="big-text-style" TargetType="TextBox">
<Style.Resources>
<Style TargetType="{x:Type ScrollBar}" BasedOn="{StaticResource {x:Type ScrollBar}}">
<Setter Property="Margin" Value="0"/>
</Style>
</Style.Resources>
</Style>

Changing Windows.Ribbon background color

I am working with the System.Windows.Ribbon in my project. I am also using some other libraries like AvalonDocking,... What I want to do is create my own themes inside the application so that the user can select the prefered theme.
The problem is that I don't get the RibbonTab to change to the correct colors. When I change the ribbon background color the RibbonTab color changes also. But I want to change it seperatly
Does anybody have any experience with changing the layout of the System.Windows.Ribbon?
This is what I tried before:
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:xcad="http://schemas.xceed.com/wpf/xaml/avalondock">
<SolidColorBrush x:Key="WindowBrush" Color="Black"/>
<Style TargetType="{x:Type Ribbon}">
<Setter Property="Background" Value="#444444" />
<Setter Property="Foreground" Value="White" />
</Style>
<Style TargetType="{x:Type RibbonTab}">
<Setter Property="Height" Value="88" />
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="Background" Value="Black" />
</Style>
<Style TargetType="{x:Type xcad:DockingManager}">
<Setter Property="Background" Value="#444444" />
<Setter Property="Foreground" Value="White" />
</Style>
</ResourceDictionary>
As you can see, the RibbonTab is not black like specified inside the ResourceDictionary

Override TextBlock style of ContentPresenter in Metro theme

I use metro theme in my project.
I have a style for TextBlock Base.
<Style x:Key="TextBlockText" TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="#FF63798F"/>
<Setter Property="FontSize" Value="14"/>
<Setter Property="VerticalAlignment" Value="Bottom"/>
<Setter Property="HorizontalAlignment" Value="Stretch"/>
</Style>
I want to change the foreground of GridViewColumnHeader by setting a style for it. I added TextBlock.Foreground="White" for ContentPresenter of it. But it doesn't change color!
When I remove the TextBlock style it is ok.

Remove Foreground property of TextBlockText
add a style for Windows
Add TextBlock.Foreground='White' for ContentPresenter .

Watermark fontsize/family

I am currently creating a TextBox with a watermark text and have a little styling problem.
To create the Watermark itself I have included the code explained in here
Watermark / hint text / placeholder TextBox in WPF
I did not use the accepted answer, but the one with the highest votes. (the one using Adorner)
My textblock looks like this:
<AdornerDecorator>
<TextBox HorizontalAlignment="Right"
VerticalAlignment="Center"
Width="190"
Padding="16,2,20,2">
<utils:WatermarkService.Watermark>
<TextBlock Text="Search" />
</utils:WatermarkService.Watermark>
</TextBox>
</AdornerDecorator>
Now I face the problem that with this attached property, the textblock in it gets out of scope from my styling I have declared in app.xaml.
The styling looks like this:
<Style TargetType="{x:Type Window}">
<Setter Property="FontFamily"
Value="Tahoma" />
<Setter Property="FontSize"
Value="8pt"></Setter>
<Setter Property="Background"
Value="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}" />
</Style>
How is it possible to style the textblock within the attached property in app.xaml, preferable with basedon this style so I dont have to declare it serval times.

Declare same style for TextBlock as well in Application resources. This way it will be applied to all TextBlocks in your application no matter whether they are part of Adorners or window.
<Style TargetType="{x:Type TextBlock}">
<Setter Property="FontFamily"
Value="Tahoma" />
<Setter Property="FontSize"
Value="8pt"></Setter>
<Setter Property="Background"
Value="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}"/>
</Style>
UPDATE
If you don't want to duplicate resources, best you can get is use Label instead of TextBlock. That way you can have style applied on Control and can derive styles for Window and Label from that.
But this won't work for TextBlock since it doesn't derive from Control.
<Style TargetType="Control" x:Key="BaseStyle">
<Setter Property="FontFamily" Value="Tahoma" />
<Setter Property="FontSize" Value="8pt"></Setter>
<Setter Property="Background"
Value="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}"/>
</Style>
<Style TargetType="{x:Type Window}"
BasedOn="{StaticResource BaseStyle}"/>
<Style TargetType="{x:Type Label}"
BasedOn="{StaticResource BaseStyle}"/>
Then if you use Label inside AdornerDecorator in place of TextBlock, it will work fine.

Setting foreground for whole Windows Phone's application

How to change foreground color for all controls in the application? I need to change color for: textboxes, textblocks, borders of buttons.
It will take too long to do it one by one (over 100 controls).

This is what styles are for. You can add styles in your app.xaml file. Something like:
<Application.Resources>
<Style TargetType="TextBlock">
<Setter Property="Foreground" Value="White" />
</Style>
<Style TargetType="TextBox">
<Setter Property="Foreground" Value="White" />
</Style>
</Application.Resources>

Assuming you are programming for Windows Phone 7.1 (Mango) or later, you can use a Style in your App.xaml file, add the following code inside your Application.Resources tag and customize as needed. The styles will be applied to all Pages in your application (you can still override individual properties directly in the corresponding element tags).
<Application.Resources>
<Style TargetType="Button">
<Setter Property="Foreground" Value="Red"/>
<Setter Property="FontSize" Value="20"/>
</Style>
<Style TargetType="TextBlock">
<Setter Property="Foreground" Value="Blue" />
</Style>
</Application.Resources>