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PropertyValueUIItem Class

Provides information about a property displayed in the Properties window, including the associated event handler, pop-up information string, and the icon to display for the property.

Namespace: System.Drawing.Design
Assembly: System.Drawing (in system.drawing.dll)

public class PropertyValueUIItem
public class PropertyValueUIItem
public class PropertyValueUIItem
Not applicable.

The following code example provides a PropertyValueUIItem object for any properties of the component named HorizontalMargin or VerticalMargin. The PropertyValueUIItem for these properties provides an image, a ToolTip, and an event handler that displays a message box when the image for the property is clicked. This code example is part of a larger example provided for the IPropertyValueUIService interface.

// PropertyValueUIHandler delegate that provides PropertyValueUIItem
// objects to any properties named HorizontalMargin or VerticalMargin.
private void marginPropertyValueUIHandler(System.ComponentModel.ITypeDescriptorContext context, System.ComponentModel.PropertyDescriptor propDesc, ArrayList itemList)
{
    // A PropertyValueUIHandler added to the IPropertyValueUIService
    // is queried once for each property of a component and passed
    // a PropertyDescriptor that represents the characteristics of 
    // the property when the Properties window is set to a new 
    // component. A PropertyValueUIHandler can determine whether 
    // to add a PropertyValueUIItem for the object to its ValueUIItem 
    // list depending on the values of the PropertyDescriptor.
    if( propDesc.DisplayName.Equals( "HorizontalMargin" ) )
    {
        Image img = DeserializeFromBase64Text(imageBlob1);
        itemList.Add( new PropertyValueUIItem( img, new PropertyValueUIItemInvokeHandler(this.marginInvoke), "Test ToolTip") );
    }
    if( propDesc.DisplayName.Equals( "VerticalMargin" ) )
    {
        Image img = DeserializeFromBase64Text(imageBlob1);
        img.RotateFlip(RotateFlipType.Rotate90FlipNone);
        itemList.Add( new PropertyValueUIItem( img, new PropertyValueUIItemInvokeHandler(this.marginInvoke), "Test ToolTip") );
    }
}

// PropertyValueUIHandler delegate that provides PropertyValueUIItem
// objects to any properties named HorizontalMargin or VerticalMargin.
private void MarginPropertyValueUIHandler(System.ComponentModel.
        ITypeDescriptorContext context, System.ComponentModel.
        PropertyDescriptor propDesc, ArrayList itemList)
{
    // A PropertyValueUIHandler added to the IPropertyValueUIService
    // is queried once for each property of a component and passed
    // a PropertyDescriptor that represents the characteristics of 
    // the property when the Properties window is set to a new 
    // component. A PropertyValueUIHandler can determine whether 
    // to add a PropertyValueUIItem for the object to its ValueUIItem 
    // list depending on the values of the PropertyDescriptor.
    if (propDesc.get_DisplayName().Equals("HorizontalMargin")) {
        Image img = DeserializeFromBase64Text(imageBlob1);

        itemList.Add(new PropertyValueUIItem(img, 
            new PropertyValueUIItemInvokeHandler(this.MarginInvoke),
            "Test ToolTip"));
    }
    if (propDesc.get_DisplayName().Equals("VerticalMargin")) {
        Image img = DeserializeFromBase64Text(imageBlob1);

        img.RotateFlip(RotateFlipType.Rotate90FlipNone);
        itemList.Add(new PropertyValueUIItem(img, 
            new PropertyValueUIItemInvokeHandler(this.MarginInvoke),
            "Test ToolTip"));
    }
} //MarginPropertyValueUIHandler

System.Object
  System.Drawing.Design.PropertyValueUIItem

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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