Selection in UWP CellGrid (SfCellGrid)

This section explains about the Selection behavior in SfCellGrid.

The SfCellGrid control provides support for selection in grid by using mouse, keyboard and touch interactions.

By default, Selection behavior will be enabled in SfCellGrid, but if you want to disable the selection in SfCellGrid, then set the AllowSelection Property to be false.

cellGrid.AllowSelection = false;

Accessing the Current cell

SfCellGrid allows the user to access the active cell by using the CurrentCell property of SelectionController Class.

var cell = cellGrid.SelectionController.CurrentCell;

Accessing the Selected ranges

SfCellGrid allows the user to access the selected ranges list using the SelectedRanges property.

var rangeList = cellGrid.SelectedRanges;

NOTE

To get the active range in the selected ranges list, use ActiveRange property of GridRangeInfoList class.

Adding or Clearing the Selection

SfCellGrid allows the user to add and clear the selection for the given range.

//To Add the Selection for range,
cellGrid.SelectionController. AddSelection(GridRangeInfo.Cells(4,6,5,8));

//To Add the Selection for row,
cellGrid.SelectionController.AddSelection(GridRangeInfo.Row(4));

//To Add the Selection for multiple rows,
cellGrid.SelectionController. AddSelection(GridRangeInfo.Rows(4,9));

//To Add the Selection for column,
cellGrid.SelectionController.AddSelection(GridRangeInfo.Col(5));

//To Add the Selection for multiple columns,
cellGrid.SelectionController. AddSelection(GridRangeInfo.Cols(5,10));

//To Clear the Selection,
cellGrid.SelectionController.ClearSelection();

Move Current Cell

SfCellGrid allows the user to move the current cell to the mentioned cell.

//Moves current cell to the mentioned row and column index of cell,
cellGrid.CurrentCell.MoveCurrentCell(5, 5);

Selection Attributes

SelectionBorderThickness

SfCellGrid allows the user to set the thickness of the border around the selected cells.

cellGrid.SelectionBorderThickness = 5;

SelectionBorderBrush

SfCellGrid allows the user to set the brush color of the border around the selected cells.

cellGrid.SelectionBorderBrush = new SolidColorBrush(Colors.DarkOliveGreen);

SelectionBrush

SfCellGrid allows the user to set the brush color for background of the selected cells.

cellGrid.SelectionBrush = new SolidColorBrush(Colors.Red);

Properties, Methods and Events

Below table lists the events associated with selection behavior,

Events Description
CellClick Occurs when you click on the cell.
CurrentCellActivating Occurs when the current cell is going to be activated. This event allows to cancel the current cell activation.
CurrentCellActivated Occurs after the current cell is activated.
SelectionChanging Occurs when the selection is going to be changed. This event allows to cancel the selection change.
SelectionChanged Occurs after the selection is changed.

Below table lists the properties associated with selection,

Properties Description
SelectedRanges Gets or sets the collection of selected ranges from grid.
SelectionBrush Gets or sets the selected area brush.
SelectionBorderBrush Gets or sets the selection border brush.
SelectionBorderThickness Gets or sets the thickness of selection border.
SelectionController Gets the Selection Controller which provides the selection of content when the user drags the pressed mouse to an edge of the control.
AllowSelection Gets or Sets the value whether to allow the selection in the SfCellGrid or not.
ShowTouchIndicator Determines whether the touch indicator will be shown or not.
TouchHitTestPrecision Gets or sets the distance of touch precision point from touch indicator.

Below table lists the properties associated with CurrentCell ,

Properties Description
CellRowColumnIndex Gets the row and column index of the Current Cell.
RowIndex Gets the row index of the Current Cell.
ColumnIndex Gets the column index of the Current Cell.
Range Gets the range of the Current Cell.
HasCurrentCell Gets the value indicating whether the Grid has Current Cell or not.
PreviousRowColumnIndex Gets or sets the row and column index of old Current Cell.

Below table lists the methods associated with selection,

Methods Description
AddSelection Adds/Extends the Selection to the mentioned range.
ClearSelection Clears the Selection.
MoveCurrentCell Move the Current cell to mentioned row and column index.

Key Navigation

Below table lists the key combinations associated with selection,

Key Combination Description
HOME Moves to the first cell of the current row.
END Moves to the last cell of the current row.
UPARROW Moves to one cell up of the current cell in the SfCellGrid.
DOWNARROW Moves to one cell down of the current cell in the SfCellGrid.
LEFTARROW Moves to one cell left of the current cell in the SfCellGrid.
RIGHTARROW Moves to one cell right of the current cell in the SfCellGrid.
PAGEUP Moves to the first visible cell of the current column.
PAGEDOWN Moves to the last visible cell of the current column.
CTRL+HOME Moves to the beginning cell of a SfCellGrid.
CTRL+END Moves to the last cell of a SfCellGrid.
ALT+PAGE UP Moves one screen to the left in a SfCellGrid.
ALT+PAGE DOWN Moves one screen to the right in a SfCellGrid.
CTRL + ARROW KEYS Moves to the first/last cell of the current cell based on Arrow directions.
ENTER Moves the active current cell to one cell down in the selection.
SHIFT+ENTER Moves the active current cell to one cell up in the selection.
TAB Moves the active current cell in one cell to the right of the selection.
SHIFT+TAB Moves the active current cell in one cell to the left of the selection.
BACKSPACE Begins the edit operation for the active cell in the selection.
CTRL+A Selects the entire worksheet.
SHIFT+ARROW KEYS Extends the selection by one cell based on the arrow direction.
CTRL+SHIFT+ARROW KEYS Extend the selection to the last cell in a row or column.
SHIFT+HOME Extends the selection to the first column from the active cell.
CTRL+SHIFT+HOME Extends the selection from the active cell to the first cell.
SHIFT+PAGE DOWN Extends the selection down in a SfCellGrid.
SHIFT+PAGE UP Extends the selection up in a SfCellGrid.

Touch Selection Attributes

SfCellGrid provides support for touch selection.

ShowTouchIndicator

By default, the touch indicator is enabled in SfCellGrid. If you want to disable the indicator, then set the ShowTouchIndicator to false.

cellGrid.SelectionController.ShowTouchIndicator = false;

TouchHitTestPrecision

TouchHitTestPrecision property sets the distance of touch precision point from touch indicator. By default, it`s value is 10.

var point = cellGrid.SelectionController.TouchHitTestPrecision;