Vreau pentru a schimba valoarea unei personalizate Dependență de Proprietate programatic.
Acest lucru este meu XAML:
<Window.Resources>
<ResourceDictionary>
<Style
x:Key="TreeViewItemStyle"
TargetType="TreeViewItem">
<Style.Triggers>
<Trigger
Property="local:ColorHelper.IsColor"
Value="True" >
<Setter
Property="Foreground"
Value="{Binding Color}" />
</Trigger>
<Trigger
Property="local:ColorHelper.IsColor"
Value="False" >
<Setter
Property="Foreground"
Value="Black" />
</Trigger>
</Style.Triggers>
</Style>
</ResourceDictionary>
</Window.Resources>
Vreau ca acest stil să fie aplicate la un treeview
<TreeView
HorizontalAlignment="Stretch"
Margin="15,65,15,0"
x:Name="treeView1"
VerticalAlignment="Stretch"
ItemContainerStyle="{StaticResource TreeViewItemStyle}"
ItemTemplate="{StaticResource CheckBoxItemTemplate}"
Grid.ColumnSpan="1"
Grid.RowSpan="2"
Grid.Column="1" />
Și schimbarea culorii valoarea IsColor de proprietate printr-o selectare:
<CheckBox
Name="CHK_Gray"
VerticalAlignment="Center"
Foreground="DarkGray"
Grid.Row="6"
Grid.Column="0"
Grid.RowSpan="1"
Grid.ColumnSpan="2"
Unchecked="grayCheckBox_Unchecked"
Checked="grayCheckBox_Checked">
Show Created Assembly (in Grey)
</CheckBox>
Dependența de Proprietate este creat astfel:
public class ColorHelper : DependencyObject
{
public static readonly DependencyProperty IsColorProperty = DependencyProperty.Register(
"IsColor", typeof(bool), typeof(ColorHelper), new PropertyMetadata(false));
public static void SetIsColor(DependencyObject target, Boolean value)
{
target.SetValue(IsColorProperty, value);
}
public static bool GetIsColor(DependencyObject target)
{
return (bool)target.GetValue(IsColorProperty);
}
}
Cum pot face în Bifat si Debifat eveniment pentru a modifica valoarea IsColor proprietate?
private void grayCheckBox_Checked(object sender, RoutedEventArgs e)
{
???
}
private void grayCheckBox_Unchecked(object sender, RoutedEventArgs e)
{
???
}
Vă mulțumesc foarte mult pentru ajutor!