Class GridCellSelectionController

Represents a class that implements the selection behavior of cell in SfDataGrid.

Inheritance
System.Object
GridBaseSelectionController
GridCellSelectionController
Implements
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
Inherited Members
Namespace: Syncfusion.UI.Xaml.Grid
Assembly: Syncfusion.SfGrid.WPF.dll
Syntax
public class GridCellSelectionController : GridBaseSelectionController, IGridSelectionController, INotifyPropertyChanged, IDisposable

Constructors

GridCellSelectionController(SfDataGrid)

Initializes a new instance of GridCellSelectionController class.

Declaration
public GridCellSelectionController(SfDataGrid grid)
Parameters
Type Name Description
SfDataGrid grid

The SfDataGrid .

Fields

isInShiftSelection

Gets or sets a value that determines whether shift selection performed in SfDataGrid.

Declaration
protected bool isInShiftSelection
Field Value
Type
System.Boolean

lastSelectedIndex

Gets or sets the index of last selected row.

Declaration
protected RowColumnIndex lastSelectedIndex
Field Value
Type
RowColumnIndex

previousSelectedCells

Gets or sets the collection of previous selected cells while selecting the cells using CTRL key.

Declaration
protected List<GridCellInfo> previousSelectedCells
Field Value
Type
System.Collections.Generic.List<GridCellInfo>

Properties

PressedIndex

Gets or sets the pressed index in SfDataGrid.

Declaration
protected RowColumnIndex PressedIndex { get; set; }
Property Value
Type
RowColumnIndex

Methods

AddSelection(RowColumnIndex, List<Object>)

Adds the cell selection for the specified list of items and rowcolumnindex.

Declaration
protected void AddSelection(RowColumnIndex rowColumnIndex, List<object> addedItems)
Parameters
Type Name Description
RowColumnIndex rowColumnIndex

The corresponding rowcolumnindex to add cell selection.
System.Collections.Generic.List<System.Object> addedItems

The corresponding list of items to add the selection.

ClearGroupSelections(Group)

Clears the cell selection in the corresponding Group.

Declaration
protected void ClearGroupSelections(Group group)
Parameters
Type Name Description
Group group

The corresponding group to clear the cell selection.

ClearSelections(Boolean, Boolean)

Clears all the selected cells in SfDataGrid.

Declaration
public override void ClearSelections(bool exceptCurrentCell, bool isProgrammatic = true)
Parameters
Type Name Description
System.Boolean exceptCurrentCell

Decides whether the current cell selection need to be removed when the selections are cleared.
System.Boolean isProgrammatic

Decides whether to raise events when the selection is cleared pogrammatically.
Overrides
Remarks

This method helps to clear the selection programmatically.

CommitAddNew(Boolean)

Commits the new item initialized on the AddNewRow to the underlying data source.

Declaration
protected override void CommitAddNew(bool changeState = true)
Parameters
Type Name Description
System.Boolean changeState

Indicates whether watermark is enabled on the AddNewRow.
Overrides

Dispose(Boolean)

Release all the resources used by the GridCellSelectionController class.

Declaration
protected override void Dispose(bool isDisposing)
Parameters
Type Name Description
System.Boolean isDisposing

Indicates whether the call is from Dispose method or from a finalizer.
Overrides

GetNextCellIndex(Int32)

Gets the index of next cell corresponding to the specified index.

Declaration
protected virtual int GetNextCellIndex(int index)
Parameters
Type Name Description
System.Int32 index

The corresponding index to get the index of next cell.
Returns
Type Description
System.Int32

Returns the index of next cell.

GetNextRowIndex(Int32)

Gets the index of next row corresponding to the specified index.

Declaration
protected virtual int GetNextRowIndex(int index)
Parameters
Type Name Description
System.Int32 index

The corresponding index to get the index of next row.
Returns
Type Description
System.Int32

Returns the index of next row.

GetPreviousCellIndex(Int32)

Gets the index of previous cell corresponding to the specified index.

Declaration
protected virtual int GetPreviousCellIndex(int index)
Parameters
Type Name Description
System.Int32 index

The corresponding index to get the previous cell index.
Returns
Type Description
System.Int32

Returns the index of previous cell.

GetPreviousRowIndex(Int32)

Gets the index of previous row corresponding to the specified index.

Declaration
protected virtual int GetPreviousRowIndex(int index)
Parameters
Type Name Description
System.Int32 index

The corresponding index to get the index of previous row.
Returns
Type Description
System.Int32

Returns the index of previous row.

GetRowColumnIndex(Object, GridColumn)

Gets the corresponding RowColumnIndex of the specified row data and column.

Declaration
protected RowColumnIndex GetRowColumnIndex(object rowData, GridColumn column)
Parameters
Type Name Description
System.Object rowData

The corresponding row data to get the RowColumnIndex.
GridColumn column

The corresponding column to get the RowColumnIndex.
Returns
Type Description
RowColumnIndex

Returns the RowColumnIndex of the specified row data and column

GetSelectedCells()

Gets the collection of selected cells in SfDataGrid.

Declaration
public List<GridCellInfo> GetSelectedCells()
Returns
Type Description
System.Collections.Generic.List<GridCellInfo>

Returns the list of GridCellInfo collection.

HandleCollectionChanged(NotifyCollectionChangedEventArgs, CollectionChangedReason)

Handles the cell selection when the SelectedItems, Columns and DataSource collection changes.

Declaration
public override void HandleCollectionChanged(NotifyCollectionChangedEventArgs e, CollectionChangedReason reason)
Parameters
Type Name Description
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

The System.Collections.Specialized.NotifyCollectionChangedEventArgs that contains data for collection changes.
CollectionChangedReason reason

Contains the corresponding CollectionChangedReason for collection changes.
Overrides
Remarks

This method is not applicable when the SelectionUnit and NavigationMode is Row.

HandleDetailsViewGridKeyDown(KeyEventArgs)

Handles the cell selection when the keyboard interactions that are performed in DetailsViewDataGrid.

Declaration
public override bool HandleDetailsViewGridKeyDown(KeyEventArgs args)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs args

Contains information about the key that was pressed.
Returns
Type Description
System.Boolean

true if the key should be handled in DetailsViewDataGrid; otherwise, false.
Overrides

HandleGroupExpandCollapse(Int32, Int32, Boolean)

Handles the cell selection when the group is expanded or collapsed in SfDataGrid.

Declaration
public override void HandleGroupExpandCollapse(int index, int itemsCount, bool isExpanded)
Parameters
Type Name Description
System.Int32 index

The corresponding index of the group.
System.Int32 itemsCount

The number of rows that are collapsed or expanded.
System.Boolean isExpanded

Decides whether the group is expanded or not.
Overrides
Remarks

This method is invoked when the group is expanded or collapsed.

HandleKeyDown(KeyEventArgs)

Handles the cell selection when the keyboard interactions that are performed in SfDataGrid.

Declaration
public override bool HandleKeyDown(KeyEventArgs args)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs args

Contains information about the key that was pressed.
Returns
Type Description
System.Boolean

true if the key should be handled in SfDataGrid; otherwise, false.
Overrides

HandlePointerOperations(GridPointerEventArgs, RowColumnIndex)

Handles the cell selection when any of PointerOperation such as pressed,released,moved,and etc that are performed in SfDataGrid.

Declaration
public override void HandlePointerOperations(GridPointerEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
GridPointerEventArgs args

The GridPointerEventArgs that contains the type of pointer operations and its arguments.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex of the cell.
Overrides
Remarks

This method is invoked when any of the PointerOperation are performed in SfDataGrid.

HideAllSelection(Boolean)

Hides all the cell selection background of all selected cells in SfDataGrid.

Declaration
protected void HideAllSelection(bool exceptCurrentCell)
Parameters
Type Name Description
System.Boolean exceptCurrentCell

Indicates whether the selection should be hidden except for the current Cell.

HideCellSelection(DataColumnBase)

Hides the cell selection background for the corresponding column.

Declaration
protected void HideCellSelection(DataColumnBase column)
Parameters
Type Name Description
DataColumnBase column

The corresponding column to hide the cell selection.

MoveCurrentCell(RowColumnIndex, Boolean)

Moves the current cell for the specified rowColumnIndex.

Declaration
public override void MoveCurrentCell(RowColumnIndex rowColumnIndex, bool needToClearSelection = true)
Parameters
Type Name Description
RowColumnIndex rowColumnIndex

Specifies the corresponding rowColumnIndex to move the current cell.
System.Boolean needToClearSelection

Decides whether the current cell selection is cleared while moving the current cell.
Overrides
Remarks

This method is not applicable when the and is Row.

ProcessCurrentItemChanged(SelectionPropertyChangedHandlerArgs)

Processes the cell selection when the CurrentItem property value changes.

Declaration
protected override void ProcessCurrentItemChanged(SelectionPropertyChangedHandlerArgs handle)
Parameters
Type Name Description
SelectionPropertyChangedHandlerArgs handle

The SelectionPropertyChangedHandlerArgs that contains the data for the CurrentItem property value changes.
Overrides

ProcessDataReorder(Object, NotifyCollectionChangedAction)

Processes the cell selection when the data is reordered in SfDataGrid.

Declaration
protected virtual void ProcessDataReorder(object value, NotifyCollectionChangedAction action)
Parameters
Type Name Description
System.Object value

The corresponding value to check whether the reordered data that contains cell selection.
System.Collections.Specialized.NotifyCollectionChangedAction action

Indicates the corresponding collection changed actions performed on the data.

ProcessDetailsViewGridPointerMoved(MouseEventArgs, RowColumnIndex)

Processes the cell selection when mouse pointer moved on the DetailsViewDataGrid.

Declaration
protected virtual void ProcessDetailsViewGridPointerMoved(MouseEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseEventArgs args

Contains the data related to the mouse move action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex where the mouse move interaction occurs.

ProcessDetailsViewGridPointerPressed(MouseButtonEventArgs, RowColumnIndex)

Processes the cell selection when the mouse pointer is pressed on the DetailsViewDataGrid.

Declaration
protected virtual void ProcessDetailsViewGridPointerPressed(MouseButtonEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs args

Contains the data for mouse pointer pressed action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex related to the pointer pressed location.
Remarks

This method invoked when the pointer pressed using touch or mouse in DetailsViewDataGrid.

ProcessDetailsViewGridPointerReleased(MouseButtonEventArgs, RowColumnIndex)

Processes the cell selection when the mouse pointer is released from the DetailsViewDataGrid.

Declaration
protected virtual void ProcessDetailsViewGridPointerReleased(MouseButtonEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs args

Contains the data for pointer released action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex related to the pointer released location.

ProcessDetailsViewIndex(KeyEventArgs, Int32, Key, out Int32)

Processes cell selection while navigating the cell selection from parent grid to child grid .

Declaration
protected bool ProcessDetailsViewIndex(KeyEventArgs args, int rowIndex, Key processKey, out int returnIndex)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs args

Contains data for key navigation.
System.Int32 rowIndex

The corresponding row index where the key navigation occurs.
System.Windows.Input.Key processKey

The corresponding key that was processed.
System.Int32 returnIndex

The returnIndex to select the next row when DetailsViewDataGrid doesn't handle the cell selection.
Returns
Type Description
System.Boolean

Returns true if the pressed key was processed in DetailsViewDataGrid; otherwise, false.

ProcessDetailsViewKeyDown(KeyEventArgs, ref Int32, Key)

Processes the cell selection when the keyboard interactions that are performed in DetailsViewDataGrid.

Declaration
protected bool ProcessDetailsViewKeyDown(KeyEventArgs args, ref int rowIndex, Key processKey)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs args

Contains data for key navigation.
System.Int32 rowIndex

The corresponding row index where the key navigation occurs.
System.Windows.Input.Key processKey

The corresponding key that was processed.
Returns
Type Description
System.Boolean

Returns true if the keyboard interaction that are processed in DetailsViewDataGrid; otherwise, false.

ProcessDragSelection(MouseEventArgs, RowColumnIndex)

Processes the cell selection when the mouse pointer is dragged on the SfDataGrid.

Declaration
protected override void ProcessDragSelection(MouseEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseEventArgs args

Contains the data related to the mouse action.
RowColumnIndex rowColumnIndex

The starting rowColumnIndex of the drag selection.
Overrides
Remarks

This method will be raised when the SelectionMode is Multiple or Extended.

ProcessDragSelection(MouseEventArgs, RowColumnIndex, RowColumnIndex, Boolean)

Processes the cell selection when the mouse pointer is dragged on the SfDataGrid.

Declaration
protected void ProcessDragSelection(MouseEventArgs args, RowColumnIndex rowColumnIndex, RowColumnIndex previousCellIndex, bool needToSelectWholeRow)
Parameters
Type Name Description
System.Windows.Input.MouseEventArgs args

Contains data related to the mouse action.
RowColumnIndex rowColumnIndex

The corresponding row and column index to perform drag selection.
RowColumnIndex previousCellIndex

Contains the previous cell index during drag operation.
System.Boolean needToSelectWholeRow

Indicates whether the whole row is selected while processing the drag selection on cells.

ProcessGroupCollapsed(Int32, Int32)

Processes the cell selection when the group is collapsed.

Declaration
protected virtual void ProcessGroupCollapsed(int removeAtIndex, int count)
Parameters
Type Name Description
System.Int32 removeAtIndex

The corresponding index of the group that is collapsed from the view.
System.Int32 count

The number of collapsed rows count of corresponding group.

ProcessGroupExpanded(Int32, Int32)

Processes the cell selection when the group is expanded in SfDataGrid.

Declaration
protected virtual void ProcessGroupExpanded(int insertIndex, int count)
Parameters
Type Name Description
System.Int32 insertIndex

The corresponding index of the group that is expanded in to view.
System.Int32 count

The number of expanded rows count of corresponding group.

ProcessKeyDown(KeyEventArgs)

Processes the cell selection when the keyboard interactions that are performed in SfDataGrid.

Declaration
protected virtual void ProcessKeyDown(KeyEventArgs args)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs args

Contains the information about the key that was pressed.
Remarks

This method helps to customize the keyboard interaction behavior in SfDataGrid.

ProcessOnAddNewRow(AddNewRowOperationHandlerArgs)

Processes the cell selection when new row is initiated or committed and the position of AddNewRow is changed.

Declaration
protected override void ProcessOnAddNewRow(AddNewRowOperationHandlerArgs handle)
Parameters
Type Name Description
AddNewRowOperationHandlerArgs handle

Contains data for the AddNewRow operation.
Overrides

ProcessOnColumnRemoved(GridColumn)

Processes the selection when the column is removed from the selected cells in SfDataGrid.

Declaration
protected virtual void ProcessOnColumnRemoved(GridColumn column)
Parameters
Type Name Description
GridColumn column

The corresponding column that is removed from the selected cells.

ProcessOnDoubleTapped(MouseButtonEventArgs, RowColumnIndex)

Processes the selection when the mouse point is double tapped on the grid cell.

Declaration
protected virtual void ProcessOnDoubleTapped(MouseButtonEventArgs e, RowColumnIndex currentRowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs e

Contains the data related to the double tap interaction.
RowColumnIndex currentRowColumnIndex

The corresponding rowColumnIndex of the mouse point.
Remarks

This method invoked to process selection and end edit the cell when EditTrigger is OnDoubleTap.

ProcessOnFilterApplied(GridFilteringEventArgs)

Processes the cell selection when filtering is applied in SfDataGrid.

Declaration
protected override void ProcessOnFilterApplied(GridFilteringEventArgs args)
Parameters
Type Name Description
GridFilteringEventArgs args

Contains the data related to filtering operation.
Overrides

ProcessOnFilterPopupOpened()

Processes the cell selection when the filter popup is opened.

Declaration
protected override void ProcessOnFilterPopupOpened()
Overrides
Remarks

This method refreshes the cell selection while opening the filter popup in SfDataGrid.

ProcessOnFilterRowPositionChanged(DependencyPropertyChangedEventArgs)

Processes the selection when the position of FilterRow is changed.

Declaration
protected override void ProcessOnFilterRowPositionChanged(DependencyPropertyChangedEventArgs args)
Parameters
Type Name Description
System.Windows.DependencyPropertyChangedEventArgs args

Contains data for the FilterRow position changed.
Overrides

ProcessOnGroupChanged(GridGroupingEventArgs)

Processes the cell selection when the column is grouped in SfDataGrid.

Declaration
protected override void ProcessOnGroupChanged(GridGroupingEventArgs args)
Parameters
Type Name Description
GridGroupingEventArgs args

Contains the data related to the grouping operation.
Overrides
Remarks

This method refreshes the selection while grouping the column in SfDataGrid.

ProcessOnPageChanged()

Processes the cell selection while navigating from one page in to another page in SfDataPager.

Declaration
protected override void ProcessOnPageChanged()
Overrides

ProcessOnPaste(List<Object>)

Processes the cell selection when the records is pasted from the clipboard into SfDataGrid.

Declaration
protected override void ProcessOnPaste(List<object> records)
Parameters
Type Name Description
System.Collections.Generic.List<System.Object> records

Contains the list of records that is pasted into SfDataGrid.
Overrides

ProcessOnRowHeaderChanged()

Processes the cell selection when the ShowRowHeader property value changes.

Declaration
public override void ProcessOnRowHeaderChanged()
Overrides

ProcessOnSortChanged(SortColumnChangedHandle)

Processes the cell selection when the column is sorted in SfDataGrid.

Declaration
protected override void ProcessOnSortChanged(SortColumnChangedHandle sortcolumnHandle)
Parameters
Type Name Description
SortColumnChangedHandle sortcolumnHandle

Contains information related to the sorting action.
Overrides
Remarks

This method refreshes the selection while sorting the column in SfDataGrid and clear the selection in summary rows.

ProcessOnStackedHeaderRows(StackedHeaderCollectionChangedEventArgs)

Processes the cell selection when the stacked header collection changes in SfDataGrid.

Declaration
protected override void ProcessOnStackedHeaderRows(StackedHeaderCollectionChangedEventArgs args)
Parameters
Type Name Description
StackedHeaderCollectionChangedEventArgs args

Contains data for stacked header collection changes.
Overrides

ProcessOnTapped(MouseButtonEventArgs, RowColumnIndex)

Processes the cell selection when the mouse point is tapped on the grid cell.

Declaration
protected virtual void ProcessOnTapped(MouseButtonEventArgs e, RowColumnIndex currentRowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs e

Contains the data related to the tap interaction.
RowColumnIndex currentRowColumnIndex

The corresponding rowColumnIndex of the mouse point.
Remarks

This method invoked to process selection and end edit the cell when EditTrigger is OnTap.

ProcessPointerMoved(MouseEventArgs, RowColumnIndex)

Processes the cell selection when mouse pointer moved on the SfDataGrid.

Declaration
protected virtual void ProcessPointerMoved(MouseEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseEventArgs args

Contains the data related to the mouse move action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex related to the mouse point.

ProcessPointerPressed(MouseButtonEventArgs, RowColumnIndex)

Processes the cell selection when the mouse pointer is pressed in SfDataGrid.

Declaration
protected virtual void ProcessPointerPressed(MouseButtonEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs args

Contains the data for mouse pointer action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex of the pressed point location.
Remarks

This method will be invoked when the pointer is pressed using touch or mouse in SfDataGrid. The selection is initialized in pointer pressed state when the AllowSelectionOnPointerPressed set as true.

ProcessPointerReleased(MouseButtonEventArgs, RowColumnIndex)

Processes the cell selection when the mouse pointer is released in SfDataGrid.

Declaration
protected virtual void ProcessPointerReleased(MouseButtonEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs args

Contains the data for mouse pointer action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex of mouse released point.
Remarks

The selection is initialized in pointer released state when the AllowSelectionOnPointerPressed set as false.

ProcessPointerSelection(MouseButtonEventArgs, RowColumnIndex, Boolean)

Processes the cell selection when the pointer pressed or released interactions performed in SfDataGrid.

Declaration
protected void ProcessPointerSelection(MouseButtonEventArgs args, RowColumnIndex rowColumnIndex, bool needToSelectWholeRow)
Parameters
Type Name Description
System.Windows.Input.MouseButtonEventArgs args

Contains the data for mouse pointer action.
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex related to the mouse position.
System.Boolean needToSelectWholeRow

Indicates whether the whole row need to be selected or not.

ProcessPointerWheel(MouseWheelEventArgs, RowColumnIndex)

Processes the cell selection while scrolling the SfDataGrid using mouse wheel.

Declaration
protected virtual void ProcessPointerWheel(MouseWheelEventArgs args, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Windows.Input.MouseWheelEventArgs args
RowColumnIndex rowColumnIndex

The corresponding rowColumnIndex where the mouse wheel interaction occurs.

ProcessSelectedIndexChanged(SelectionPropertyChangedHandlerArgs)

Processes the cell selection when the SelectedIndex property value changes.

Declaration
protected override void ProcessSelectedIndexChanged(SelectionPropertyChangedHandlerArgs handle)
Parameters
Type Name Description
SelectionPropertyChangedHandlerArgs handle

The SelectionPropertyChangedHandlerArgs contains the data for the SelectedIndex property value changes.
Overrides

ProcessSelectedItemChanged(SelectionPropertyChangedHandlerArgs)

Processes the cell selection when the SelectedItem property value changes.

Declaration
protected override void ProcessSelectedItemChanged(SelectionPropertyChangedHandlerArgs handle)
Parameters
Type Name Description
SelectionPropertyChangedHandlerArgs handle

The SelectionPropertyChangedHandlerArgs that contains the data for the SelectedItem property value changes.
Overrides

ProcessSelection(RowColumnIndex, SelectionReason, Boolean)

Processes the cell selection for the specified row and column index.

Declaration
protected bool ProcessSelection(RowColumnIndex newRowColumnIndex, SelectionReason reason, bool needWholeRowSelect = false)
Parameters
Type Name Description
RowColumnIndex newRowColumnIndex

The corresponding rowcolumnindex to select the cell.
SelectionReason reason

Contains the selection reason to select the cell.
System.Boolean needWholeRowSelect

Indicates whether the whole row is selected while processing the cell selection.
Returns
Type Description
System.Boolean

Returns true if the cell selection is processed to corresponding row and column index; otherwise, false.

ProcessSelectionModeChanged(SelectionPropertyChangedHandlerArgs)

Processes the cell selection when the SelectionMode property value changes.

Declaration
protected override void ProcessSelectionModeChanged(SelectionPropertyChangedHandlerArgs handle)
Parameters
Type Name Description
SelectionPropertyChangedHandlerArgs handle

The SelectionPropertyChangedHandlerArgs contains the data for the SelectionMode property value changes.
Overrides

ProcessShiftSelection(RowColumnIndex, RowColumnIndex, Key, Boolean)

Processes the selection when the cells selected by using Shift key.

Declaration
protected void ProcessShiftSelection(RowColumnIndex newRowColumnIndex, RowColumnIndex previousRowColumnIndex, Key key, bool needToSelectWholeRow = false)
Parameters
Type Name Description
RowColumnIndex newRowColumnIndex

The corresponding row and column index to perform shift cell selection.
RowColumnIndex previousRowColumnIndex

Contains the previous row and column index.
System.Windows.Input.Key key

Contains the key that was pressed.
System.Boolean needToSelectWholeRow

Indicates whether the whole row is selected while processing the shift cell selection.

ProcessSourceCollectionChanged(NotifyCollectionChangedEventArgs, CollectionChangedReason)

Processes the cell selection when the ItemsSource property value changes.

Declaration
protected virtual void ProcessSourceCollectionChanged(NotifyCollectionChangedEventArgs e, CollectionChangedReason reason)
Parameters
Type Name Description
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

The System.Collections.Specialized.NotifyCollectionChangedEventArgs that contains data for source collection changes.
CollectionChangedReason reason

The CollectionChangedReason contains reason for the source collection changes.

ProcessTableSummaryChanged(TableSummaryPositionChangedEventArgs)

Processes the cell selection when the table summary row position has changed.

Declaration
protected override void ProcessTableSummaryChanged(TableSummaryPositionChangedEventArgs args)
Parameters
Type Name Description
TableSummaryPositionChangedEventArgs args

Contains the data for the table summary row position changes.
Overrides

ProcessUnBoundRowChanged(UnBoundDataRowCollectionChangedEventArgs)

Processes the cell selection when the UnBoundRow collection changes.

Declaration
protected override void ProcessUnBoundRowChanged(UnBoundDataRowCollectionChangedEventArgs args)
Parameters
Type Name Description
UnBoundDataRowCollectionChangedEventArgs args

Contains data for the UnBoundRow collection changes.
Overrides

RefreshSelectedCells()

Refreshes the SelectedCells collection in SfDataGrid.

Declaration
protected void RefreshSelectedCells()
Remarks

This method refresh the SelectedCells collection when the grid related operations are performed.

RemoveSelection(RowColumnIndex, List<Object>)

Removes the selection for the specified list of items and rowcolumnindex.

Declaration
protected void RemoveSelection(RowColumnIndex rowColumnIndex, List<object> removedItems)
Parameters
Type Name Description
RowColumnIndex rowColumnIndex

The corresponding rowcolumnindex to remove the selection.
System.Collections.Generic.List<System.Object> removedItems

The corresponding list of items to remove the cell selection.

ResetSelectedCells(Boolean)

Updates the SelectedCells based on row data and removes the cells from the SelectedCells collection that is not in currently in view.

Declaration
public void ResetSelectedCells(bool canUpdateCurrentCell = true)
Parameters
Type Name Description
System.Boolean canUpdateCurrentCell

true, if the current cell is need to be updated during reset the SelectedCells.
Remarks

The SelectedCells collection updated only for record cells and other selection will be removed.

ResetSelectedCells(ref List<Object>)

Resets the SelectedCells based on the selection added or removed in SfDataGrid .

Declaration
protected void ResetSelectedCells(ref List<object> removedItems)
Parameters
Type Name Description
System.Collections.Generic.List<System.Object> removedItems

the removed items.
Remarks

The SelectedCells collection updated only for record cells and other selection will be removed.

ResetSelection(RowColumnIndex, List<Object>, Boolean)

Resets the selection for the specified row and column index.

Declaration
protected void ResetSelection(RowColumnIndex rowColumnIndex, List<object> removedItems, bool setFocusGrid = true)
Parameters
Type Name Description
RowColumnIndex rowColumnIndex

The corresponding rowcolumnindex to reset the cell selection.
System.Collections.Generic.List<System.Object> removedItems

The corresponding list of items to reset the cell selection.
System.Boolean setFocusGrid

Indicates whether the focus is set to SfDataGrid after reset the selection.

SelectAll(Boolean)

Selects all the cells in SfDataGrid.

Declaration
public override void SelectAll(bool canFocus = true)
Parameters
Type Name Description
System.Boolean canFocus

Decides whether the focus can be set to the current cell.
Overrides
Remarks

This method only works for Multiple and Extended mode selection.

SelectCell(Object, GridColumn, Boolean)

Selects the cell for the specified row data and column.

Declaration
public void SelectCell(object rowData, GridColumn column, bool canFocus = true)
Parameters
Type Name Description
System.Object rowData

Specifies the corresponding rowData to select the cell.
GridColumn column

Specifies the corresponding column to select the cell.
System.Boolean canFocus

Decides whether the focus can be set to the current cell.

SelectCells(Object, GridColumn, Object, GridColumn, Boolean)

Selects the range of cells for the specified row data and column information .

Declaration
public void SelectCells(object startRowData, GridColumn startColumn, object endRowData, GridColumn endColumn, bool canFocus = true)
Parameters
Type Name Description
System.Object startRowData

Specifies the starting row position to select.
GridColumn startColumn

Specifies the starting column position to select.
System.Object endRowData

Specifies the ending row position to select.
GridColumn endColumn

Specifies the ending column position to select.
System.Boolean canFocus

Decides whether the focus can be set to the current cell.
Remarks

This method is not applicable for Single and None selection mode.

SelectRows(Int32, Int32)

Selects the rows corresponding to the specified start and end index of the row.

Declaration
public override void SelectRows(int startRowIndex, int endRowIndex)
Parameters
Type Name Description
System.Int32 startRowIndex

The start index of the row.
System.Int32 endRowIndex

The end index of the row.
Overrides

ShowCellSelection(DataColumnBase)

Shows the cell selection background for the corresponding column.

Declaration
protected void ShowCellSelection(DataColumnBase column)
Parameters
Type Name Description
DataColumnBase column

The corresponding column to show cell selection.

UnSelectCell(Object, GridColumn)

Unselects the cell for the specified row data and column.

Declaration
public void UnSelectCell(object rowData, GridColumn column)
Parameters
Type Name Description
System.Object rowData

Specifies the corresponding rowData to unselect.
GridColumn column

Specifies the corresponding column to unselect.

UnSelectCells(Object, GridColumn, Object, GridColumn)

Unselects the range of cells for the specified row data and column information.

Declaration
public void UnSelectCells(object startRowData, GridColumn startColumn, object endRowData, GridColumn endColumn)
Parameters
Type Name Description
System.Object startRowData

Specifies the starting row position to unselect.
GridColumn startColumn

Specifies the starting column position to unselect.
System.Object endRowData

Specifies the ending row position to unselect.
GridColumn endColumn

Specifies the ending column position to unselect.
Remarks

This method is not applicable for Single and None selection mode.

UpdateCurrentCell(Boolean, Boolean)

Updates the current cell based on CurrentItem property value changes.

Declaration
protected void UpdateCurrentCell(bool skipIfNotDataRow = true, bool canFocusGrid = true)
Parameters
Type Name Description
System.Boolean skipIfNotDataRow

Indicates whether the update for current cell is skipped other than data row.
System.Boolean canFocusGrid

If true, the Focus will be set to SfDataGrid.

Implements

System.ComponentModel.INotifyPropertyChanged
System.IDisposable