WPF - Checkbox in cell row readonly possible? - wpf

Question

I have a ListView which is bind dynamically to a list of object of the same type.
The object have a boolean value.
There a ListView column which display a checkbox instead of the "true" and "false" normal value for that specific property.
Is there a way to set that checkbox readonly ? otherwise is there a way to tell that the click is coming from this specific row in the events "checked" and "unchecked" which execute a method in code behind ?
Thanks!

Answer 1

You can make any control readonly by setting IsHitTestVisible and Focusable to false.
XAML:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:WpfApplication1="clr-namespace:WpfApplication1">
<StackPanel>
<ListView ItemsSource="{Binding}">
<ListView.View>
<GridView>
<GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Name}" />
<GridViewColumn Header="Is Valid">
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding Path=IsValid}" IsHitTestVisible="False" Focusable="False" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
</StackPanel>
</Window>
Code behind:
using System.Collections.Generic;
namespace WpfApplication1
{
public partial class Window1
{
public Window1()
{
InitializeComponent();
List<DataItem> data = new List<DataItem>();
data.Add(new DataItem() { Name = "AAA", IsValid = true });
data.Add(new DataItem() { Name = "BBB" });
DataContext = data;
}
public class DataItem
{
public string Name { get; set; }
public bool IsValid { get; set; }
}
}
}

Answer 2

You can restyle the ControlTemplate of CheckBox to remove RenderPressed and bind IsChecked to your DataContext property instead of TemplateBinding. Here is the edited template, look for IsChecked="{Binding MyBoolean}" and change that to your property.
<LinearGradientBrush x:Key="CheckRadioFillNormal">
<GradientStop Color="#FFD2D4D2" Offset="0"/>
<GradientStop Color="#FFFFFFFF" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="CheckRadioStrokeNormal">
<GradientStop Color="#FF004C94" Offset="0"/>
<GradientStop Color="#FF003C74" Offset="1"/>
</LinearGradientBrush>
<Style x:Key="EmptyCheckBoxFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="1" SnapsToDevicePixels="true" Stroke="Black" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="CheckRadioFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="14,0,0,0" SnapsToDevicePixels="true" Stroke="Black" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ReadonlyCheckBox" TargetType="{x:Type CheckBox}">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="Background" Value="{StaticResource CheckRadioFillNormal}"/>
<Setter Property="BorderBrush" Value="{StaticResource CheckRadioStrokeNormal}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="FocusVisualStyle" Value="{StaticResource EmptyCheckBoxFocusVisual}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<BulletDecorator Background="Transparent" SnapsToDevicePixels="true">
<BulletDecorator.Bullet>
<Microsoft_Windows_Themes:BulletChrome BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" IsChecked="{Binding MyBoolean}" RenderMouseOver="{TemplateBinding IsMouseOver}"/>
</BulletDecorator.Bullet>
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</BulletDecorator>
<ControlTemplate.Triggers>
<Trigger Property="HasContent" Value="true">
<Setter Property="FocusVisualStyle" Value="{StaticResource CheckRadioFocusVisual}"/>
<Setter Property="Padding" Value="2,0,0,0"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

Answer 3

Place transparent TextBlock on CheckBox.
Disable CheckBox by setting "IsEnabled" fnd use the ToolTip Content on this TextBlock.
Example below:
<DataGridTemplateColumn Header="Hdr" Width="34" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Grid>
<CheckBox VerticalAlignment="Center" HorizontalAlignment="Center" IsEnabled="False" IsChecked="{Binding IS_CHECKED}"/>
<TextBlock>
<ToolTipService.ToolTip>
<ToolTip Content="{Binding TOOL_TP}"/>
</ToolTipService.ToolTip>
</TextBlock>
</Grid>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>