Class GridColumnDragDropController

Provides the base implementation for column drag-and-drop operations in SfDataGrid.

Inheritance

System.Object

GridColumnDragDropController

GridColumnChooserController

Implements

System.IDisposable

Namespace: Syncfusion.UI.Xaml.Grid

Assembly: Syncfusion.SfGrid.WPF.dll

Syntax

public class GridColumnDragDropController : Object, IDisposable

Remarks

It provides the set of public properties and virtual method to customize the drag-and-drop operation.

Constructors

GridColumnDragDropController(SfDataGrid)

Initializes a new instance of GridColumnDragDropController class.

Declaration

public GridColumnDragDropController(SfDataGrid dataGrid)

Parameters

Type	Name	Description
SfDataGrid	dataGrid	The SfDataGrid.

Fields

dpTimer

Declaration

protected DispatcherTimer dpTimer

Field Value

Type
System.Windows.Threading.DispatcherTimer

Properties

PopupContentControl

Gets the PopupContentControl for drag-and-drop operation.

Declaration

protected PopupContentControl PopupContentControl { get; }

Property Value

Type
PopupContentControl

PopupMaxHeight

Gets or sets the maximum height constraint of the popup for drag-and-drop operation.

Declaration

public double PopupMaxHeight { get; set; }

Property Value

Type	Description
System.Double	The maximum height constraint of the popup.

PopupMaxWidth

Gets or sets the maximum width constraint of the popup for drag-and-drop operation.

Declaration

public double PopupMaxWidth { get; set; }

Property Value

Type	Description
System.Double	The maximum width constraint of the popup.

PopupMinHeight

Gets or sets the minimum height constraint of the popup for drag-and-drop operation.

Declaration

public double PopupMinHeight { get; set; }

Property Value

Type	Description
System.Double	The minimum height constraint of the popup.

PopupMinWidth

Gets or sets the minimum width constraint of the popup for drag-and-drop operation.

Declaration

public double PopupMinWidth { get; set; }

Property Value

Type	Description
System.Double	The minimum width constraint of the popup.

Methods

CanShowPopup(GridColumn)

Determines whether the popup is displayed on the specified column.

Declaration

public virtual bool CanShowPopup(GridColumn column)

Parameters

Type	Name	Description
GridColumn	column	The corresponding column to decide whether the popup is displayed on it or not.

Returns

Type	Description
System.Boolean	Returns true if the popup is displayed on the column; otherwise, false.

CreatePopupContent(GridColumn)

Creates the popup content for the specified column.

Declaration

protected virtual UIElement CreatePopupContent(GridColumn column)

Parameters

Type	Name	Description
GridColumn	column	The corresponding column to create popup content.

Returns

Type	Description
System.Windows.UIElement	Returns the System.Windows.UIElement for the popup.

Dispose()

Releases all the resources used by the GridColumnDragDropController class.

Declaration

public void Dispose()

Dispose(Boolean)

Disposes all the resources used by the GridColumnDragDropController class.

Declaration

protected virtual void Dispose(bool isDisposing)

Parameters

Type	Name	Description
System.Boolean	isDisposing	Indicates whether the call is from Dispose method or from a finalizer.

GetGroupDropAreaRect()

Gets the display rectangle for the GroupDropArea.

Declaration

protected Rect GetGroupDropAreaRect()

Returns

Type	Description
System.Windows.Rect	The display rectangle for the GroupDropArea.

GetHeaderRowRect()

Gets the display rectangle for the header row in SfDataGrid.

Declaration

protected Rect GetHeaderRowRect()

Returns

Type	Description
System.Windows.Rect	The display rectangle for the header row.

GetPopupRect()

Gets the display rectangle for the popup.

Declaration

protected Rect GetPopupRect()

Returns

Type	Description
System.Windows.Rect	The display rectangle for the popup.

OnColumnHiddenChanged(GridColumn)

Invoked when the property value changes.

Declaration

protected virtual void OnColumnHiddenChanged(GridColumn column)

Parameters

Type	Name	Description
GridColumn	column	The corresponding column on which the property value changes occurs.

OnColumnWidthChanged(GridColumn)

Invoked when the Width property value changes.

Declaration

protected virtual void OnColumnWidthChanged(GridColumn column)

Parameters

Type	Name	Description
GridColumn	column	The corresponding column on which the Width property value changes occurs.

OnPopupContentDropped(Point)

Invoked when the popup content dropped on SfDataGrid.

Declaration

protected virtual void OnPopupContentDropped(Point pointOverGrid)

Parameters

Type	Name	Description
System.Windows.Point	pointOverGrid	Indicates whether the mouse point over on SfDataGrid.

OnPopupContentPositionChanged(Double, Double, Point)

Invoked when the position of popup content is changed in SfDataGrid.

Declaration

protected virtual void OnPopupContentPositionChanged(double HorizontalDelta, double VerticalDelta, Point mousePointOverGrid)

Parameters

Type	Name	Description
System.Double	HorizontalDelta	The corresponding horizontal distance of the popup content position changes.
System.Double	VerticalDelta	The corresponding vertical distance of the popup content position changes.
System.Windows.Point	mousePointOverGrid	Indicates whether the mouse point is hover on the DataGrid.

PointToGridRegion(Point)

Gets the corresponding GridRegion at the specified point co-ordinate value.

Declaration

public virtual GridRegion PointToGridRegion(Point point)

Parameters

Type	Name	Description
System.Windows.Point	point	The position to get the corresponding grid region.

Returns

Type	Description
GridRegion	Returns the corresponding GridRegion at the specified point.

PopupContentDroppedOnGrid(Point)

Invoked when the popup content dropped on SfDataGrid.

Declaration

protected virtual void PopupContentDroppedOnGrid(Point point)

Parameters

Type	Name	Description
System.Windows.Point	point	The corresponding position where the popup content is dropped in SfDataGrid.

PopupContentDroppedOnGroupDropArea(GridColumn)

Invoked when the popup content is dropped on the GroupDropArea in SfDataGrid.

Declaration

protected virtual void PopupContentDroppedOnGroupDropArea(GridColumn column)

Parameters

Type	Name	Description
GridColumn	column	The corresponding column that is dropped to the GroupDropArea.

Remarks

Override this method and customize the drag-and-drop interaction between column and GroupDropArea in SfDataGrid.

PopupContentDroppedOnHeaderRow(Int32, Int32)

Invoked when the popup content is dropped on header row in SfDataGrid.

Declaration

protected virtual void PopupContentDroppedOnHeaderRow(int oldIndex, int newColumnIndex)

Parameters

Type	Name	Description
System.Int32	oldIndex	The corresponding old index of the column before dropped the popup content on header row.
System.Int32	newColumnIndex	The new index of the column after dropped the popup content on header row.

Remarks

Override this method and customize the drag-and-drop interaction between columns in SfDataGrid.

ShowPopup(Int32, Rect, Object)

Displays the popup at the specified column index, display rectangle and position.

Declaration

public void ShowPopup(int gridColumnIndex, Rect rect, object pointer)

Parameters

Type	Name	Description
System.Int32	gridColumnIndex	The corresponding column index to show the popup.
System.Windows.Rect	rect	The corresponding display rectangle to show the popup.
System.Object	pointer	The corresponding position to show the popup.

Implements

System.IDisposable