New Post: DataTemplate and CurrentCulture

Small Update:

The same control PropertyGridEditorDoubleUpDown behaves differently when used outside of the data template and outside of it. (See sample code, try it with german language settings)

1. Outside of the control I used this (bound to the same model)
   

<tk:PropertyGridEditorDoubleUpDown Text="{Binding Blubber.ValidationDouble, UpdateSourceTrigger=PropertyChanged, ValidatesOnExceptions=True}"></tk:PropertyGridEditorDoubleUpDown>

• Immediate Validation working
• the source property is updated correctly with the correclty converted double value.
  
• Inside the dataTemplate the binding to the properties are done by the grid. I use the data template
  

<tk:PropertyGridEditorDoubleUpDown Text="{Binding Value, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, ValidatesOnExceptions=True}" >
</tk:PropertyGridEditorDoubleUpDown>

• Property is not correclty updated, value converted with other culture settings, ignoring the currentculture.
  

And both times I bind the text property. Same control, two bindings to double - different behaviour. Anywhere in the data template / grid bindings someone is ignoring the CurrentCulture or the CurrentUICulture.

Sample xaml:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:lcl="clr-namespace:WpfApplication1"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:tk="http://schemas.xceed.com/wpf/xaml/toolkit"
        xmlns:s="clr-namespace:System;assembly=mscorlib"
        Title="MainWindow" Height="350" Width="525"
        >
   <Window.Resources>

        <lcl:Converter x:Key="myConv" />
        <Style TargetType="{x:Type Control}">
            <Style.Triggers>
                <Trigger Property="Validation.HasError" Value="true">
                    <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
                </Trigger>
            </Style.Triggers>
        </Style>
        <Style TargetType="{x:Type tk:PropertyGridEditorDoubleUpDown}">
            <Style.Triggers>
                <Trigger Property="Validation.HasError" Value="true">
                    <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
                </Trigger>
            </Style.Triggers>
        </Style>
        
    </Window.Resources>
   
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="20"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
        </Grid.RowDefinitions>
        <tk:PropertyGridEditorDoubleUpDown Text="{Binding Blubber.ValidationDouble, UpdateSourceTrigger=PropertyChanged, ValidatesOnExceptions=True}"></tk:PropertyGridEditorDoubleUpDown>

            <tk:PropertyGrid   Grid.Row="1 " Margin="5"  IsEnabled="True" ScrollViewer.VerticalScrollBarVisibility="Visible" Name="propertyGrid" 
                       MinWidth="400" UpdateTextBoxSourceOnEnterKey="True" HorizontalContentAlignment="Left" NameColumnWidth="250" ClipToBounds="False" 
                       VerticalContentAlignment="Stretch" Height="Auto" MaxHeight="800" DockPanel.Dock="Top" ShowSearchBox="False" ShowSortOptions="False" ShowSummary="False" ShowTitle="False"
                        SelectedObject="{Binding Blubber, ValidatesOnDataErrors=True, ValidatesOnExceptions=True}" ShowAdvancedOptions="False" IsCategorized="True" AutoGenerateProperties="True">
  
            <tk:PropertyGrid.EditorDefinitions>
                
                <tk:EditorTemplateDefinition >
                    <tk:EditorTemplateDefinition.TargetProperties>
                        <tk:TargetPropertyType Type="{x:Type s:String}" />
                    </tk:EditorTemplateDefinition.TargetProperties>
                    <tk:EditorTemplateDefinition.EditingTemplate>
                        <DataTemplate>
                            <tk:PropertyGridEditorTextBox TextAlignment="Left" Text="{Binding Value, UpdateSourceTrigger=PropertyChanged}" />
                        </DataTemplate>
                    </tk:EditorTemplateDefinition.EditingTemplate>
                </tk:EditorTemplateDefinition>

                <tk:EditorTemplateDefinition >
                    <tk:EditorTemplateDefinition.TargetProperties>
                        <tk:TargetPropertyType Type="{x:Type s:Int32}" />
                        <tk:TargetPropertyType Type="{x:Type s:Int16}" />
                        <tk:TargetPropertyType Type="{x:Type s:Int64}" />
                    </tk:EditorTemplateDefinition.TargetProperties>
                    <tk:EditorTemplateDefinition.EditingTemplate>
                        <DataTemplate>
                            <tk:PropertyGridEditorIntegerUpDown TextAlignment="Left" Text="{Binding Value, UpdateSourceTrigger=PropertyChanged}" />
                        </DataTemplate>
                    </tk:EditorTemplateDefinition.EditingTemplate>
                </tk:EditorTemplateDefinition>
                <tk:EditorTemplateDefinition >
                    <tk:EditorTemplateDefinition.TargetProperties>
                        <tk:TargetPropertyType Type="{x:Type s:Single}" />
                    </tk:EditorTemplateDefinition.TargetProperties>
                    <tk:EditorTemplateDefinition.EditingTemplate>
                        <DataTemplate>
                            <tk:SingleUpDown Text="{Binding Value, UpdateSourceTrigger=PropertyChanged,  ValidatesOnDataErrors=True, ValidatesOnExceptions=True}" />
                        </DataTemplate>
                    </tk:EditorTemplateDefinition.EditingTemplate>
                </tk:EditorTemplateDefinition>
                <tk:EditorTemplateDefinition >
                    <tk:EditorTemplateDefinition.TargetProperties>
                        <tk:TargetPropertyType Type="{x:Type s:Double}" />
                    </tk:EditorTemplateDefinition.TargetProperties>
                    <tk:EditorTemplateDefinition.EditingTemplate>
                        <DataTemplate>

                            <tk:PropertyGridEditorDoubleUpDown Text="{Binding Value, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, ValidatesOnExceptions=True}" >
                              
                            </tk:PropertyGridEditorDoubleUpDown>

                        </DataTemplate>
                        
                    </tk:EditorTemplateDefinition.EditingTemplate>
                </tk:EditorTemplateDefinition>
            </tk:PropertyGrid.EditorDefinitions>
        </tk:PropertyGrid>

        
    </Grid>
   
</Window>