Hello,

i added a simple example which should explain all.

I created a CustomButtonEditor (inherited from ValueEditor) which contains a Button Control. I created some bindings. I bind the Button content to the CustomButtonEditor's Value Property. This works fine when i set/change the values of every button cell, when the grid is initialised. But i want to add some "default" content and tried to do so by creating a Setter in the editor style that i bind to a field. (This works with i.e. the Background, but not with the Content of the Button)

I do not want to fill each button cell seperately because i have an addnewrow and always want to show a default value (button text or image) when (or before) a new row/record is created. The content should even be shown in the addnewrow!

I hope you understand my problem!

DHPButtonEditor Code:

Imports Infragistics.Windows.Editors
 
<TemplatePart(Name:="PART_DhpButton", Type:=GetType(Button))> _
Public Class DHPButtonEditor
    Inherits ValueEditor
 
    Shared Sub New()
 
        DefaultStyleKeyProperty.OverrideMetadata( _
            GetType(DHPButtonEditor), _
            New FrameworkPropertyMetadata(GetType(DHPButtonEditor)))
 
        ClickEvent = EventManager.RegisterRoutedEvent( _
            "Click", RoutingStrategy.Bubble, _
            GetType(RoutedEventHandler), _
            GetType(DHPButtonEditor))
 
    End Sub
 
    Public Overrides Sub OnApplyTemplate()
        MyBase.OnApplyTemplate()
 
        Dim button As Button = TryCast(MyBase.GetTemplateChild("PART_DhpButton"), Button)
        If button IsNot Nothing Then
            AddHandler button.Click, AddressOf Button_Click
        End If
    End Sub
 
    Public Shared ReadOnly ClickEvent As RoutedEvent
 
    Public Custom Event Click As RoutedEventHandler
        AddHandler(ByVal value As RoutedEventHandler)
            Me.AddHandler(ClickEvent, value)
        End AddHandler
        RemoveHandler(ByVal value As RoutedEventHandler)
            Me.RemoveHandler(ClickEvent, value)
        End RemoveHandler
        RaiseEvent(ByVal sender As Object, ByVal e As RoutedEventArgs)
            Me.RaiseEvent(e)
        End RaiseEvent
    End Event
 
    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
        Dim args As New RoutedEventArgs()
        args.RoutedEvent = ClickEvent
        Me.RaiseEvent(args)
    End Sub
 
    Public Overrides Function CanEditType(type As Type) As Boolean
        Return True
    End Function
 
    Public Overrides Function CanRenderType(type As Type) As Boolean
        Return True
    End Function
 
End Class

DHPButtonEditor XAML Code (Generic.xaml):

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:ButtonEditorStyleImage">
 
    <Style x:Key="{x:Type local:DHPButtonEditor}"
           TargetType="{x:Type local:DHPButtonEditor}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:DHPButtonEditor}">
                    <Button
                        Name="PART_DhpButton"
                        Margin="0"
                        Width="{TemplateBinding Width}"
                        Background="{TemplateBinding Background}"
                        Content="{TemplateBinding Value}">
                    </Button>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

MainWindow Code:

Imports System.Data
 
Public Class MainWindow
 
    Public mTable As New DataTable
    Public Property Table As DataTable
        Get
            Return mTable
        End Get
        Set(value As DataTable)
            mTable = value
        End Set
    End Property
 
    Public Sub New()
 
        InitializeComponent()
 
        mTable.Columns.Add("Text", GetType(String))
        mTable.Columns.Add("Button", GetType(Object))
        For i As Integer = 0 To 4
            mTable.Rows.Add("Line " + (i + 1).ToString)
 
            'With this code line i only write button content to records which are 
            'generated at loading, but not when i add new records after loading:
 
            'mTable.Rows.Add("Line " + (i + 1).ToString, "Not Clicked")
        Next
        XamDataGrid1.DataContext = Table.DefaultView
 
    End Sub
 
    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
        Dim b As DHPButtonEditor = TryCast(sender, DHPButtonEditor)
        b.Value = "Clicked"
        b.Background = System.Windows.Media.Brushes.Green
    End Sub
 
End Class

MainWindow XAML Code:

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:igDP="http://infragistics.com/DataPresenter"
    xmlns:local="clr-namespace:ButtonEditorStyleImage"
    Title="MainWindow" Height="350" Width="525" >
    <Grid>
        <igDP:XamDataGrid Name="XamDataGrid1" DataSource="{Binding}" GroupByAreaLocation="None">
            
            <igDP:XamDataGrid.Resources>
                <Style x:Key="BtnEditor" TargetType="{x:Type local:DHPButtonEditor}">
                    <Style.Setters>
                        <Setter Property="Value" Value="Not Clicked" />
                        <Setter Property="Background" Value="Red" />
                        <EventSetter Event="Click" Handler="Button_Click" />
                    </Style.Setters>
                </Style>
            </igDP:XamDataGrid.Resources>
            
            <igDP:XamDataGrid.FieldLayoutSettings>
                <igDP:FieldLayoutSettings AutoGenerateFields="False" AutoFitMode="Always" AllowAddNew="True" AddNewRecordLocation="OnBottom" />
            </igDP:XamDataGrid.FieldLayoutSettings>
 
            <igDP:XamDataGrid.FieldLayouts>
                <igDP:FieldLayout>
                    <igDP:Field Name="Text" />
                    <igDP:Field Name="Button">
                        <igDP:Field.Settings>
                            <igDP:FieldSettings EditorType="{x:Type local:DHPButtonEditor}" EditorStyle="{StaticResource BtnEditor}" />
                        </igDP:Field.Settings>
                    </igDP:Field>
                </igDP:FieldLayout>
            </igDP:XamDataGrid.FieldLayouts>     
        </igDP:XamDataGrid>
    </Grid>
</Window>

Thanks for every help!

Regards,

Jochen