Class PopupHostBase

The top level form-derived class that hosts a Syncfusion.WinForms.Core.PopupHostBase.PopupControlContainer when it is dropped-down.

Inheritance

System.Object

PopupHostBase

Namespace: Syncfusion.WinForms.Core

Assembly: Syncfusion.Core.WinForms.dll

Syntax

public class PopupHostBase : Form

Remarks

You will normally not have to use this class or refer to an instance of this class. An instance of this class will be automatically generated by the Syncfusion.WinForms.Core.PopupHostBase.PopupControlContainer which will then set this as its parent when ShowPopup(Point) is called on it.

However, you can for example access an instance of this class from the PopupControlContainer and change certain properties.

You can include a shadow in your popups by setting the NeedShadow property.

Constructors

PopupHostBase()

Initializes a new instance of the PopupHostBase class.

Declaration

public PopupHostBase()

Properties

CreateParams

Overrides the create parameters.

Declaration

protected override CreateParams CreateParams { get; }

Property Value

Type
System.Windows.Forms.CreateParams

Methods

AdjustLocationForAlignment(ref Point, PopupRelativeAlignment)

Adjust the location based on the alignment.

Declaration

protected void AdjustLocationForAlignment(ref Point loc, PopupRelativeAlignment align)

Parameters

Type	Name	Description
System.Drawing.Point	loc	The location.
PopupRelativeAlignment	align	The alignment.

AttachPopup()

Attaches the popup.

Declaration

protected virtual void AttachPopup()

ComputeControlLocation()

Compute the control location.

Declaration

protected virtual void ComputeControlLocation()

ComputeLocation()

Compute the location.

Declaration

protected virtual void ComputeLocation()

ComputeSize()

Compute the size.

Declaration

protected virtual void ComputeSize()

DetachPopup()

Releases the popup.

Declaration

protected virtual void DetachPopup()

Dispose(Boolean)

Releases the unmanaged resources.

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	The boolean value.

GetAdjustedLocation(Point)

Get the adjusted location.

Declaration

protected virtual Point GetAdjustedLocation(Point loc)

Parameters

Type	Name	Description
System.Drawing.Point	loc	The location.

Returns

Type	Description
System.Drawing.Point	Returns the location.

GetIsMirrored()

Checks the right to left mode.

Declaration

protected bool GetIsMirrored()

Returns

Type	Description
System.Boolean	Return true if right to left mode.

HidePopup()

Hides the popup.

Declaration

public virtual void HidePopup()

IsShowing()

Checks whether the popup is shown or not.

Declaration

public bool IsShowing()

Returns

Type	Description
System.Boolean	Returns the boolean value.

OnDeactivate(EventArgs)

Occurs when deactivate the host.

Declaration

protected override void OnDeactivate(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	The event arguments

OnHandleCreated(EventArgs)

Occurs while handle is created.

Declaration

protected override void OnHandleCreated(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	The event arguments

OnLocationChanged(EventArgs)

Occurs when location changed.

Declaration

protected override void OnLocationChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	The event arguments.

OnPaint(PaintEventArgs)

Overridden. See System.Windows.Forms.Control.OnPaint.

Declaration

protected override void OnPaint(PaintEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e	The paint event argument.

OnSizeChanged(EventArgs)

Overridden. See System.Windows.Forms.Control.OnSizeChanged.

Declaration

protected override void OnSizeChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	The event arguments

OnVisibleChanged(EventArgs)

Overridden. See System.Windows.Forms.Control.OnVisibleChanged.

Declaration

protected override void OnVisibleChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	The event argument.

ResumeLayout(Boolean)

Resume the layout operation.

Declaration

public void ResumeLayout(bool preformLayout)

Parameters

Type	Name	Description
System.Boolean	preformLayout	The boolean value.

Show()

Shows the popup.

Declaration

public virtual void Show()

SuspendLayout()

Suspend layout operation.

Declaration

public void SuspendLayout()

UpdateVisibility()

Updates popup host visibility and z-order.

Declaration

protected void UpdateVisibility()

WndProc(ref Message)

Overridden. See System.Windows.Forms.Control.WndProc.

Declaration

protected override void WndProc(ref Message m)

Parameters

Type	Name	Description
System.Windows.Forms.Message	m	The message.