SftTree/NET 2.0 - Tree Control for Windows Forms

DropDownButtonPartClass Class

An instance of the DropDownButtonPartClass class represents a dropdown button part.

Cells can contain one or several dropdown buttons (instances of the DropDownButtonPartClass). Each dropdown button can operate independently with its own attributes and properties.

The Action event can be used to handle a dropdown button click.

If the Action event is used, the ItemClick event is not raised.

Namespace: Softelvdm.Controls
Assembly: Softelvdm.SftTreeNET

Inheritance

• System.Object
• Softelvdm.Controls.GenericPartClass
• Softelvdm.Controls.DropDownButtonPartClass

Syntax

public class DropDownButtonPartClass : Softelvdm.Controls.GenericPartClass;

Public Class DropDownButtonPartClass
    Inherits Softelvdm.Controls.GenericPartClass

Constructors

DropDownButtonPartClass

Initializes a new instance of the DropDownButtonPartClass class.

Properties

	Angle	Defines the rotation of the part.
	Appearance	Defines the dropdown button appearance.
	Enabled	Defines whether the dropdown button is enabled.
	HAlign	Defines the horizontal alignment within the part's available space.
	Orientation	Returns the orientation of parts within a cell. This is defined by the cell or the owner of the cell.
	PartAlignment	Defines the part alignment of this part relative to its container and other parts.
	PartOwner	Returns the owner of the part, usually an object derived from CellBaseClass.
	Pressed	Defines whether the dropdown button is currently pressed.
	TagObject	Defines application-specific data.
	TagString	Defines an application-specific string.
	VAlign	Defines the vertical alignment within the part's available space.
	VisibleAppearance	Returns the visibility status of the part.

Methods

	CalcRotatedSize	Calculates the size of the smallest rectangle that can contain the rotated rectangle of a given size, based on the part's GenericPartClass.Angle property.
	CalcSize	Calculates the size of the part.
	CalcUnrotatedBaseWidth	Calculates the actual width of the part, based on the width of the rotated part's containing rectangle.
	ConsiderForOutline	Defines whether the part is considered when calculating the outline rectangle of a cell.
	Copy	Creates an identical copy of the part.
	CopyPart	Copies information from one part to another.
	Equals	Determines whether the specified object is equal to the current object.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
	GetHashCode	Serves as the default hash function.
	GetType	Gets the Type of the current instance.
	GetVisible	Returns the current visibility status of a part, based on the part's GenericPartClass.VisibleAppearance property.
	MemberwiseClone	Creates a shallow copy of the current Object.
	OnContentChanged	Called when the contents of the part changed.
	ReferenceEquals	Determines whether the specified Object instances are the same instance.
	StrategyRoutine	Used to perform various actions the part supports, like rendering the part, hit-testing, determining its position and responding to mouse button clicks.
	ToString	Returns a string that represents the current object.

Events

Action

Occurs when a part's action is triggered by the user.

Examples

C#

                        true, false, GadgetAppearanceEnum.ThemedSystem, null, "Click Me", null, Color.Red);
            bp.Action += new GenericPartClass.ActionEventHandler(bp_Action);
            item.Cells[1].Parts.Add(bp);

            // Add text to the third cell
            cell = item.Cells[2];
            cell.Text = "Sample Text";
            // Add a dropdown button (still in the third cell)
            DropDownButtonPartClass ddp = new DropDownButtonPartClass();
            ddp.Action += new GenericPartClass.ActionEventHandler(ddp_Action);
            ddp.PartAlignment = PartAlignmentEnum.FlushEnd;
            cell.Parts.Add(ddp);

            // Add another item
            item = sftTree1.ItemCollection.Add();

View Entire Sample Code

VB.NET

            True, False, GadgetAppearanceEnum.ThemedSystem, Nothing, "Click Me", Nothing, Color.Red)
    AddHandler bp.Action, AddressOf bp_Action
    item.Cells(1).Parts.Add(bp)

    ' Add text to the third cell
    cell = item.Cells(2)
    cell.Text = "Sample Text"
    ' Add a dropdown button (still in the third cell)
    Dim ddp As DropDownButtonPartClass = New DropDownButtonPartClass()
    AddHandler ddp.Action, AddressOf ddp_Action
    ddp.PartAlignment = PartAlignmentEnum.FlushEnd
    cell.Parts.Add(ddp)

    ' Add another item
    item = sftTree1.ItemCollection.Add()

View Entire Sample Code

See Also Classes | SftTree/NET 2.0