I have use 10 TextBox in my application and in that same application i have defined the style in App.xaml It applies for all the text boxes in my application . how to disable the style applying for a single TextBox.
Can any one help me out in this.
I used the below code to set the style
<Style TargetType="{x:Type TextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border Background="White"
x:Name="Bd" BorderBrush="#FF50729f" CornerRadius="3"
BorderThickness="1"
>
<ScrollViewer x:Name="PART_ContentHost"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" TargetName="Bd" Value="#FFe0dfe3"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="#FF9da3ab"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Validation.ErrorTemplate">
<Setter.Value>
<ControlTemplate>
<Border BorderBrush="#FFd22c2c" BorderThickness="1"
Background="#FFfce8e8" CornerRadius="3" >
<AdornedElementPlaceholder></AdornedElementPlaceholder>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="#FFe0dfe3"/>
<Setter Property="BorderBrush" Value="#FF9da3ab"/>
</Trigger>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip"
Value="{Binding RelativeSource={RelativeSource Self},
Path=(Validation.Errors)[0].ErrorContent}"/>
</Trigger>
</Style.Triggers>
</Style>
if you just want the default style then
<TextBox Style="{x:Null}"/>
otherwise Cédric Bignon's answer with target type defined (like below) will do the job.
No property will be inherited by your application TextBoxStyle
<TextBox>
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<!-- your setters-->
</Style>
</TextBox.Style>
</TextBox>
if you want to slightly change the default application style
then use the following tecqnique where in your style you can
redefine properties you want to be different from the default
or define additional ones
<TextBox>
<TextBox.Style>
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<!-- your setters-->
</Style>
</TextBox.Style>
</TextBox>
Just use an empty style:
<TextBox>
<TextBox.Style>
<Style>
</Style>
</TextBox.Style>
</TextBox>
Related
i have an ExtendedTreeView control which extendes TreeView. My extendedTreeView has a property called Highlight so unlike a normal TreeView, i want the extendedTreeView to highlight items based on this Highlight property rather than IsSelected. So I have a style defined for a TreeView like below.
<Style x:Key="TreeViewStyle" TargetType="{x:Type TreeViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<Border Name="Bd"
Background="Transparent"
//other stuff
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter TargetName="Bd" Property="Background" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And then i define another style for the extendedTreeView which is based on the TreeViewStyle. The problem is that when i try to set "Bd" which is the border, it can't recognize it and has no idea what im referring to.
<Style x:Key="TreeViewStyle2" TargetType="{x:Type controls:ExtendedTreeView}" BasedOn="{StaticResource TreeViewStyle}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<ControlTemplate.Triggers>
<Trigger Property="controls:ExtendedTreeView.Highlight" Value="true">
<Setter TargetName="Bd" Property="Background" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
IS there anyway of fixing this? or an alternative way of doing it? thanks
I am trying to trigger ToggleButton programmatically using C#.
I have a ToggleButton the switch imaged between muted and unmuted. If I toggle the button to muted I have the expected image but if I change the VolumeBar I have to trigger the button from C# because if doesn't do it automatically.
<ToggleButton x:Name="MuteBtn" Height="20" Width="20" Background="Transparent" Click="MuteButton_Click">
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}">
<Setter Property="Content">
<Setter.Value>
<Image Source="/Resources/audio-volume_on.ico" />
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content">
<Setter.Value>
<Image Source="/Resources/volume_off.ico" />
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
</ToggleButton>
I have a class called VolumeBar_ValueChanged that has to Toggle the button based on the VolumeBar Value.
As #Anu Viswan said, The isChecked property may solve your problem.
Try to use ControlTemplate for ToggleButton.
<ToggleButton>
<ToggleButton.Style>
<Style TargetType="ToggleButton">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Image x:Name="borderImage" Source="Image1.jpg"/>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter Property="Source" Value="Image2.jpg" TargetName="borderImage"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ToggleButton.Style>
</ToggleButton>
I'm trying to change my button color when the mouse is over it but it's not working (the button is still blue) and all examples I find go like I'm doing:
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="#424242"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="#8BC34A"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
What am I doing wrong?
You should use ControlTemplate for this purpose like this:
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="#424242"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="#8BC34A"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
I am developing an app and trying to stick to an MVVM model, I have a button that is just bound to a command. Currently the command can be enabled / disabled and greys out the button when the command is set to CanExecute false. But I want to add the ability to show validation errors on the button (by changing its color to red, maybe showing a tooltip).
The validation is currently already shown in another location in the UI, but the users are getting annoyed that the button is enabled and they click it only to have a message box pops up telling them they shouldn't of clicked the button because there is a validation error. But just disabling the button completely without showing them why would make the users confused(since they overlook the large red validation error at the bottom of the screen). So how can I show additional information on the save button?
This is my current button xaml:
<Button Name="SaveDataPointButton" Style="{StaticResource ImageButton}" Command="{Binding OpenDataPoint.SaveDataPointEditsCommand}" Margin="5,0" VerticalAlignment="Stretch">
<Image Source="save.png" Stretch="None" ToolTip="Save Edits"/>
</Button>
And the style that is changing its appearance when IsEnabled is false, is it possible to somehow inspect some other command state from the style to make the button red during validation errors?
<!-- Style for all of the nav and save buttons in the datapoints view -->
<Style x:Key="ImageButton" TargetType="Button">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border
x:Name="Border"
BorderThickness="0">
<ContentPresenter
Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="Border" Property="Background">
<Setter.Value>
<SolidColorBrush Color="LightGray"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="Border" Property="Background">
<Setter.Value>
<SolidColorBrush Color="Gray"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" Value="0.3"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Command" Value="{x:Null}">
<Setter Property="IsEnabled" Value="False"/>
</Trigger>
</Style.Triggers>
</Style>
I ended up using a DataTrigger bound to another property on the view model to change the background color, but because I was setting a ControlTemplate in the style, the only way I could figure out to make the DataTrigger apply a background change was to copy the entire style and put the DataTrigger on the Border element in the control template. Since apparently you can't reference a child element from the new ControlTemplate from outside that control template.
<!-- Style for all of the nav and save buttons in the datapoints view -->
<Style x:Key="ImageSaveButton" TargetType="Button">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border
x:Name="Border"
BorderThickness="0">
<Border.Style>
<Style TargetType="Border">
<Style.Triggers>
<DataTrigger Binding="{Binding OpenDataPoint.HasValidationError}" Value="True">
<Setter Property="Background" Value="Red"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Border.Style>
<ContentPresenter
Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="Border" Property="Background">
<Setter.Value>
<SolidColorBrush Color="LightGray"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="Border" Property="Background">
<Setter.Value>
<SolidColorBrush Color="Gray"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" Value="0.3"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Command" Value="{x:Null}">
<Setter Property="IsEnabled" Value="False"/>
</Trigger>
</Style.Triggers>
</Style>
from the following Trigger only the Foreground Setter is working. I do not understand why.
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
<Setter Property="BorderBrush" Value="Red"/>
<Setter Property="Foreground" Value="Red"/>
</Trigger>
Thanks for any help.
The reason this doesn't work is because the default Button template uses a ButtonChrome that draws the border and background and handles states like mouseover and disabled depending on the Windows theme (e.g. Windows XP style, Windows 7 style).
In order to allow your triggers to be applied, you will need to define a custom Button template that uses standard stylable WPF elements, like Border, instead of ButtonChrome. Here's a bare-bones working example:
<Button Content="button">
<Button.Style>
<Style TargetType="Button">
<Setter Property="BorderThickness" Value="3" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Background="{TemplateBinding Property=Background}"
BorderBrush="{TemplateBinding Property=BorderBrush}"
BorderThickness="{TemplateBinding Property=BorderThickness}">
<ContentPresenter />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red" />
<Setter Property="BorderBrush" Value="Green" />
<Setter Property="Foreground" Value="Blue" />
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
Button in WPF has a default control template. The correct way to override the Button's default behavior is by overriding default control template. This can be done with something similar to below:
<Button Width="100" Height="50" Content="Click Me!">
<Button.Template>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="bdr_main" CornerRadius="20" Margin="4" BorderThickness="1" BorderBrush="Black" Background="LightGray">
<ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="8,6,8,6" ContentSource="Content" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="bdr_main" Property="Background" Value="LightGreen"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter TargetName="bdr_main" Property="Background" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>
Found # http://harishasanblog.blogspot.com/2011/02/ismouseover-trigger-not-working-in-wpf.html
Hope it helps!
Try using the trigger on the controltemplate.
<ResourceDictionary>
<Style x:Key="TestButton" TargetType="Button">
<Setter Property="Height" Value="30" />
<Setter Property="Width" Value="30" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="Foreground" Value="Green" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="Purple" />
</Trigger>
</ControlTemplate.Triggers>
<Grid>
<Rectangle Fill="{TemplateBinding Foreground}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>