PropertyMap Klas

Definitie

public ref class PropertyMap

public class PropertyMap

[System.Security.SecurityCritical]
public class PropertyMap

type PropertyMap = class

[<System.Security.SecurityCritical>]
type PropertyMap = class

Public Class PropertyMap

Overname

Object

PropertyMap

Kenmerken

SecurityCriticalAttribute

Voorbeelden

In het volgende codevoorbeeld ziet u hoe u een toewijzing voor de Margin eigenschap toevoegt aan een ElementHost besturingselement.

// The AddMarginMapping method adds a new property mapping
// for the Margin property.
private void AddMarginMapping()
{
    elemHost.PropertyMap.Add(
        "Margin",
        new PropertyTranslator(OnMarginChange));
}

// The OnMarginChange method implements the mapping 
// from the Windows Forms Margin property to the
// Windows Presentation Foundation Margin property.
//
// The provided Padding value is used to construct 
// a Thickness value for the hosted element's Margin
// property.
private void OnMarginChange(object h, String propertyName, object value)
{
    ElementHost host = h as ElementHost;
    Padding p = (Padding)value;
    System.Windows.Controls.Button wpfButton = 
        host.Child as System.Windows.Controls.Button;

    Thickness t = new Thickness(p.Left, p.Top, p.Right, p.Bottom );

    wpfButton.Margin = t;
}

' The AddMarginMapping method adds a new property mapping
' for the Margin property.
Private Sub AddMarginMapping()

    elemHost.PropertyMap.Add( _
        "Margin", _
        New PropertyTranslator(AddressOf OnMarginChange))

End Sub


' The OnMarginChange method implements the mapping 
' from the Windows Forms Margin property to the
' Windows Presentation Foundation Margin property.
'
' The provided Padding value is used to construct 
' a Thickness value for the hosted element's Margin
' property.
Private Sub OnMarginChange( _
ByVal h As Object, _
ByVal propertyName As String, _
ByVal value As Object)

    Dim host As ElementHost = h
    Dim p As Padding = CType(value, Padding)
    Dim wpfButton As System.Windows.Controls.Button = host.Child


    Dim t As New Thickness(p.Left, p.Top, p.Right, p.Bottom)

    wpfButton.Margin = t

End Sub

In het volgende codevoorbeeld ziet u hoe u de standaardtoewijzing voor de FlowDirection eigenschap in een WindowsFormsHost besturingselement vervangt.

// The ReplaceFlowDirectionMapping method replaces the  
// default mapping for the FlowDirection property.
private void ReplaceFlowDirectionMapping()
{
    wfHost.PropertyMap.Remove("FlowDirection");

    wfHost.PropertyMap.Add(
        "FlowDirection",
        new PropertyTranslator(OnFlowDirectionChange));
}

// The OnFlowDirectionChange method translates a 
// Windows Presentation Foundation FlowDirection value 
// to a Windows Forms RightToLeft value and assigns
// the result to the hosted control's RightToLeft property.
private void OnFlowDirectionChange(object h, String propertyName, object value)
{
    WindowsFormsHost host = h as WindowsFormsHost;
    System.Windows.FlowDirection fd = (System.Windows.FlowDirection)value;
    System.Windows.Forms.CheckBox cb = host.Child as System.Windows.Forms.CheckBox;

    cb.RightToLeft = (fd == System.Windows.FlowDirection.RightToLeft ) ? 
        RightToLeft.Yes : RightToLeft.No;
}

// The cb_CheckedChanged method handles the hosted control's
// CheckedChanged event. If the Checked property is true,
// the flow direction is set to RightToLeft, otherwise it is
// set to LeftToRight.
private void cb_CheckedChanged(object sender, EventArgs e)
{
    System.Windows.Forms.CheckBox cb = sender as System.Windows.Forms.CheckBox;

    wfHost.FlowDirection = ( cb.CheckState == CheckState.Checked ) ? 
            System.Windows.FlowDirection.RightToLeft : 
            System.Windows.FlowDirection.LeftToRight;
}

' The ReplaceFlowDirectionMapping method replaces the
' default mapping for the FlowDirection property.
Private Sub ReplaceFlowDirectionMapping()

    wfHost.PropertyMap.Remove("FlowDirection")

    wfHost.PropertyMap.Add( _
        "FlowDirection", _
        New PropertyTranslator(AddressOf OnFlowDirectionChange))
End Sub


' The OnFlowDirectionChange method translates a 
' Windows Presentation Foundation FlowDirection value 
' to a Windows Forms RightToLeft value and assigns
' the result to the hosted control's RightToLeft property.
Private Sub OnFlowDirectionChange( _
ByVal h As Object, _
ByVal propertyName As String, _
ByVal value As Object)

    Dim host As WindowsFormsHost = h

    Dim fd As System.Windows.FlowDirection = _
        CType(value, System.Windows.FlowDirection)

    Dim cb As System.Windows.Forms.CheckBox = host.Child

    cb.RightToLeft = IIf(fd = System.Windows.FlowDirection.RightToLeft, _
        RightToLeft.Yes, _
        RightToLeft.No)

End Sub


' The cb_CheckedChanged method handles the hosted control's
' CheckedChanged event. If the Checked property is true,
' the flow direction is set to RightToLeft, otherwise it is
' set to LeftToRight.
Private Sub cb_CheckedChanged( _
ByVal sender As Object, _
ByVal e As EventArgs)

    Dim cb As System.Windows.Forms.CheckBox = sender

    wfHost.FlowDirection = IIf(cb.CheckState = CheckState.Checked, _
    System.Windows.FlowDirection.RightToLeft, _
    System.Windows.FlowDirection.LeftToRight)

End Sub

Opmerkingen

Gebruik de klasse PropertyMap om vertalingen te definiëren tussen Windows Forms eigenschappen en Windows Presentation Foundation -eigenschappen (WPF) in een hybride toepassing. De ElementHost.PropertyMap en WindowsFormsHost.PropertyMap eigenschappen van de en klassen definiëren toewijzingen van de ElementHost ene WindowsFormsHost technologie naar de andere.

Zie Walkthrough: Toewijzingseigenschappen met het ElementHost-besturingselement en walkthrough: toewijzingseigenschappen met behulp van het ElementFormsHost-element voor meer informatie.

Zie ook

• PropertyMap
• PropertyMap
• eigenschapstoewijzing
• Walkthrough: Koppelen van Eigenschappen met behulp van het ElementHost-besturingselement
• Stapsgewijze handleiding: Eigenschappen in kaart brengen met behulp van het WindowsFormsHost-element