Develop Reference

Cant set Triggers to Toggle Button

I can't attach triggers to a toggle button
In the first version, I get an error that the style is already redefined
In the second version with triggers, I get an error that property
Command - The member "Command" is not recognized or is not accessible.
This is Button
<ToggleButton
Name="ToggleButton_Record"
IsChecked="False"
Style="{StaticResource MaterialDesignActionToggleButton}"
ToolTip="Записать">
<materialDesign:PackIcon
HorizontalAlignment="Center"
VerticalAlignment="Center"
Foreground="OrangeRed"
Kind="Record" />
</ToggleButton>
This is 1st variant
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}">
<Style.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter Property="Command" Value="{Binding StartRecordCommand}" />
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="False">
<Setter Property="Command" Value="{Binding StopRecordCommand}" />
</Trigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
2nd variant with triggers
<ToggleButton.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter Property="Command" Value="{Binding StartRecordCommand}" />
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="False">
<Setter Property="Command" Value="{Binding StopRecordCommand}" />
</Trigger>
</ToggleButton.Triggers>
Yes I know that in 1st variant I just remove style in button and its starting works, but I need this style.

Use the 1st Variant. Remove the Style="{..}". and then, in the Style you defined, add the BasedOn.
<ToggleButton
Name="ToggleButton_Record"
IsChecked="False"
ToolTip="Записать">
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}" BasedOn="{StaticResource MaterialDesignActionToggleButton}">
<Style.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter Property="Command" Value="{Binding StartRecordCommand}" />
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="False">
<Setter Property="Command" Value="{Binding StopRecordCommand}" />
</Trigger>
</Style.Triggers>
</Style>
</ToggleButton.Style>
<materialDesign:PackIcon
HorizontalAlignment="Center"
VerticalAlignment="Center"
Foreground="OrangeRed"
Kind="Record" />
</ToggleButton>

Setting Property when No DataTrigger Values are Satisfied WPF

I am VERY new to WPF AND C#, so there may be a much better way to accomplish what I am attempting. Therefore, I am open to other methods.
As far as what I've got, I am trying to program a Digital VMB (Visual Management Board) for the maintenance department where I work. They want a section to display the number of days our plant has gone without an accident: "Days Safe". I successfully have the binding set for this TextBlock:
<TextBlock Text="{Binding DaysSafe}" FontSize="60" FontWeight="Bold" HorizontalAlignment="Center" VerticalAlignment="Center" >
I have a series of DataTriggers to change the Foreground color of the text to a certain color, based on the value of the text. Basically, I want the DaysSafe text to be:
Red when 0
Orange when 1 and so on (you can see the colors in my code below):
<StackPanel VerticalAlignment="Center" >
<TextBlock Text="{Binding DaysSafe}" FontSize="60" FontWeight="Bold" HorizontalAlignment="Center" VerticalAlignment="Center" >
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers >
<DataTrigger Binding="{Binding DaysSafe}" Value="0">
<Setter Property="Foreground" Value="Red"/>
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="1">
<Setter Property="Foreground" Value="OrangeRed" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="2">
<Setter Property="Foreground" Value="Orange" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="3">
<Setter Property="Foreground" Value="Yellow" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="4">
<Setter Property="Foreground" Value="Yellow" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="5">
<Setter Property="Foreground" Value="GreenYellow" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</StackPanel>
This functions correctly, the colors change when the days are lower. HOWEVER, I would like for the foreground color to "Default" to green when the value of DaysSafe is over 5. Right now, any value above 5 is black when I want it to be green. I tried adding the foreground="green" attribute in the first TextBlock section, but this overrides the DataTriggers and the foreground is always green.
Any help with how I may create a default value for the foreground?
Thanks.

You could just add a setter that sets the default Foreground of the TextBlock to Green:
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="Green" />
<Style.Triggers >
<DataTrigger Binding="{Binding DaysSafe}" Value="0">
<Setter Property="Foreground" Value="Red"/>
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="1">
<Setter Property="Foreground" Value="OrangeRed" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="2">
<Setter Property="Foreground" Value="Orange" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="3">
<Setter Property="Foreground" Value="Yellow" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="4">
<Setter Property="Foreground" Value="Yellow" />
</DataTrigger>
<DataTrigger Binding="{Binding DaysSafe}" Value="5">
<Setter Property="Foreground" Value="GreenYellow" />
</DataTrigger>
</Style.Triggers>
</Style>

Text Trimming on DataGrid Template Column

I have the following Column in my datagrid :
<DataGridTemplateColumn CanUserReorder="False" CanUserResize="True" Header="">
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate />
</DataGridTemplateColumn.CellEditingTemplate>
<DataGridTemplateColumn.CellStyle>
<Style TargetType="DataGridCell" BasedOn="{StaticResource DatagridCellHyperlinkStyle}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border Padding="{TemplateBinding Padding}" VerticalAlignment="Center">
<TextBlock Width="Auto" Height="Auto" TextTrimming="CharacterEllipsis">
<Hyperlink>
<InlineUIContainer TextDecorations="{Binding Path=TextDecorations, RelativeSource={RelativeSource AncestorType=TextBlock}}" Foreground="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType=TextBlock}}">
<ContentPresenter Width="Auto" Height="Auto" Content="{Binding DataContext.Value, RelativeSource={RelativeSource AncestorType=DataGridRow}}"/>
</InlineUIContainer>
<Hyperlink.Style>
<Style TargetType="Hyperlink" BasedOn="{StaticResource HyperlinkStyle}">
<EventSetter Event="Hyperlink.Click" Handler="Click" />
</Style>
</Hyperlink.Style>
</Hyperlink>
</TextBlock>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DataGridTemplateColumn.CellStyle>
</DataGridTemplateColumn>
The hyperlink works perfectly (with my style also) but the text trimming doesn't work. How can I change my code to make it work ?
The 2 styles attached :
<Style x:Key="DatagridCellHyperlinkStyle" TargetType="{x:Type DataGridCell}">
<Setter Property="Padding" Value="5" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="FontSize" Value="14" />
<Setter Property="FontFamily" Value="Helvetica" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="Foreground" Value="{StaticResource CouleurBouton}"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource ResourceKey=CouleurBouton}"/>
<Setter Property="Foreground" Value="{StaticResource ResourceKey=CouleurFond}" />
</Trigger>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="{StaticResource ResourceKey=CouleurBouton}"/>
<Setter Property="Foreground" Value="{StaticResource ResourceKey=CouleurFond}" />
</Trigger>
<DataTrigger Binding="{Binding Path=IsMouseOver, RelativeSource={RelativeSource AncestorType={x:Type DataGridRow}}}" Value="True">
<Setter Property="Background" Value="{StaticResource ResourceKey=CouleurBoutonHover}"/>
<Setter Property="Foreground" Value="{StaticResource ResourceKey=CouleurTexteBoutonHover}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style x:Key="HyperlinkStyle" TargetType="{x:Type Hyperlink}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="{DynamicResource CouleurBoutonPressed}" />
</Trigger>
</Style.Triggers>
<Setter Property="Foreground" Value="{DynamicResource CouleurBouton}" />
<Setter Property="TextBlock.TextDecorations" Value="{x:Null}" />
</Style>
Thank you !

You have nothing that will restrict the TextBlock.Width, so the text in it will never wrap, or be trimmed. To fix this problem, you just need to set some kind of Width restriction on it... you could try something like this:
<ControlTemplate>
<Border Padding="{TemplateBinding Padding}" VerticalAlignment="Center">
<TextBlock MaxWidth="250" TextTrimming="CharacterEllipsis">
...

Well, for WPF engine to understand that the trimming is needed it should see that the control cannot be put into the space available. If the control can be resized(AutoSize) it will just increase its dimensions without any trimming.
From MSDN:
Gets or sets the text trimming behavior to employ when content
overflows the content area.
And I can't see anything in your template that suggests that the space limit will be encountered.
So try to set width limit, either on Column, or on the TextBlock. Or restrict the resize in some other way.
<TextBlock Width="Auto" Height="Auto"
MaxWidth="100"
MinWidth="30"
TextTrimming="CharacterEllipsis">

Control Template For Graphical Checkbox

on my resource i got
<ControlTemplate TargetType="Label" x:Key="GraphicalCheckBox">
<Label Name="TickImage"/>
<ControlTemplate.Triggers>
<Trigger Property="Tag" Value="True">
<Setter TargetName="TickImage" Property="Background" Value="{DynamicResource ContractApprovedGreen}" />
</Trigger>
<Trigger Property="Tag" Value="False">
<Setter TargetName="TickImage" Property="Background" Value="{DynamicResource Close}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
on my view i got
<Label x:Name="COC" Template="{StaticResource GraphicalCheckBox}" Tag="{Binding Bill20IsValid}" Width="100" Height="100" Background="Gray" />
when I change Bill20IsValid to True then TextBox changes to True but the label isn't updated to ContractApprovedGreen ,ContractApprovedGreen works fine on other code places, and I am SURE this code worked a few month ago.
why my GraphicalCheckBox templete wouln't work?

I don't know why Trigger doesn't work, but DataTrigger works for me:
<DataTrigger Binding="{Binding Tag, RelativeSource={RelativeSource Self}}" Value="True">
<Setter TargetName="TickImage" Property="Background" Value="Green" />
</DataTrigger>

Grid Reference Image style and Button style

I currently have a couple buttons in a grid that have the same xaml image style and button style. I am trying to make a grid reference to call from the style feature of the button. I can do the button style work but I am having issues coding the image style so that it is one call (new to xaml). Thanks for your help in advance.
<Image>
<Image.Style>
<Style TargetType="{x:Type Image}">
<Setter Property="Source"
Value="edit_32.png" />
<Setter Property="Stretch"
Value="Uniform" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsEditing}"
Value="True">
<Setter Property="Source"
Value="save_smallest.png" />
<Setter Property="Stretch"
Value="Uniform" />
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<Button.Style>
<Style TargetType="Button">
<Setter Property="IsEnabled"
Value="False" />
<Style.Triggers>
<DataTrigger Binding="{Binding CanEdit}"
Value="True">
<Setter Property="IsEnabled"
Value="True" />
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>

Figured out the answer to my question. This set of code allows me to use dual style setting while creating only one call for the button's style:
<!--SaveEditImageSwitch-->
<Image x:Key="SaveEditImage" x:Shared="False">
<Image.Style>
<Style TargetType="{x:Type Image}">
<Setter Property="Source"
Value="edit_32.png" />
<Setter Property="Stretch"
Value="Uniform" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsEditing}"
Value="True">
<Setter Property="Source"
Value="save_smallest.png" />
<Setter Property="Stretch"
Value="Uniform" />
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<!--ButtonEditSaveStyle-->
<Style TargetType="Button"
x:Key="ButtonEditSaveStyle">
<Setter Property="IsEnabled"
Value="False" />
<Setter Property="Content"
Value="{DynamicResource ResourceKey=SaveEditImage}" />
<Style.Triggers>
<DataTrigger Binding="{Binding CanEdit}"
Value="True">
<Setter Property="IsEnabled"
Value="True" />
</DataTrigger>
</Style.Triggers>
</Style>
<Button Width="32"
Height="22"
HorizontalAlignment="Left"
VerticalAlignment="Center"
Name="gdEmployeeInfo_btnUpdateRecord"
Click="gdEmployeeInfo_btnUpdateRecord_Click"
Style="{DynamicResource ResourceKey=ButtonEditSaveStyle}">