NGridDelegate Protocol Reference

Conforms to UIScrollViewDelegate
Declared in NGridDelegate.h

Overview

The NGridDelegate protocol defines methods that should be implemented to provide the appearance and behavior of the grid.

– gridView:widthForColumnWithKey: required method

Asks the delegate to return width of the column.

- (CGFloat)gridView:(NGridView *)gridView widthForColumnWithKey:(NSInteger)columnKey

Parameters

gridView

Related grid view object.
columnKey

Key of the column.

Declared In

NGridDelegate.h

– gridView:heightForRowWithKey: required method

Asks the delegate to return height of the column.

- (CGFloat)gridView:(NGridView *)gridView heightForRowWithKey:(NSInteger)rowKey

Parameters

gridView

Related grid view object.
rowKey

Key of the row.

Declared In

NGridDelegate.h

– gridView:widthForHeaderRowWithKey:

Asks the delegate to return width of the row header.

- (CGFloat)gridView:(NGridView *)gridView widthForHeaderRowWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
key

Key of the row header.

Declared In

NGridDelegate.h

– gridView:heightForHeaderColumnWithKey:

Asks the delegate to return height of the column header.

- (CGFloat)gridView:(NGridView *)gridView heightForHeaderColumnWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
key

Key of the column header.

Declared In

NGridDelegate.h

– gridView:cellShouldHighlightOnTouchDown:

Asks the delegate whether the grid view should highlight the cell on touch. Return YES if the cell should be highlighted on touch.

- (BOOL)gridView:(NGridView *)gridView cellShouldHighlightOnTouchDown:(NGridCell *)cell

Parameters

gridView

Related grid view object.
cell

Cell object to test if the cell should be highlighted on touch down.

Declared In

NGridDelegate.h

– gridView:cellShouldHighlightOnExpanderTouchDown:

Asks the delegate whether grid view should highlight cell on touch of the expander. Return YES if cell should be highlighted on the touch of the expander.

- (BOOL)gridView:(NGridView *)gridView cellShouldHighlightOnExpanderTouchDown:(NGridCell *)cell

Parameters

gridView

Related grid view object.
cell

Cell object to test if the cell should be highlighted on touch down on the expander.

Declared In

NGridDelegate.h

– gridView:widthChangeNeeded:forColumnWithKey:

Asks the delegate to change the width of the cell in the grid view.

- (void)gridView:(NGridView *)gridView widthChangeNeeded:(CGFloat)newWidth forColumnWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
newWidth

New width of the cell column.
key

Key of the column.

Declared In

NGridDelegate.h

– gridView:heightChangeNeeded:forRowWithKey:

Asks the delegate to change the height of the cell in the grid view.

- (void)gridView:(NGridView *)gridView heightChangeNeeded:(CGFloat)newHeight forRowWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
newHeight

New height of the cell row.
key

Key of the row.

Declared In

NGridDelegate.h

– gridView:widthChangeNeeded:forRowHeaderWithKey:

Asks the delegate to change the width of the cell in the grid view.

- (void)gridView:(NGridView *)gridView widthChangeNeeded:(CGFloat)newWidth forRowHeaderWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
newWidth

New width of the cell column.
key

Key of the column from row headers.

Declared In

NGridDelegate.h

– gridView:heightChangeNeeded:forColumnHeaderWithKey:

Asks the delegate to change the height of the cell in the grid view.

- (void)gridView:(NGridView *)gridView heightChangeNeeded:(CGFloat)newHeight forColumnHeaderWithKey:(NSInteger)key

Parameters

gridView

Related grid view object.
newHeight

New height of the cell row.
key

Key of the row from column headers.

Declared In

NGridDelegate.h

– gridViewWillUpdate:

Called before the start of data source updating in the grid view.

- (void)gridViewWillUpdate:(NGridView *)gridView

Parameters

gridView

Related grid view object.

Declared In

NGridDelegate.h

– gridViewDidUpdate:

Called after the end of data source updating in the grid view.

- (void)gridViewDidUpdate:(NGridView *)gridView

Parameters

gridView

Related grid view object.

Declared In

NGridDelegate.h

– gridViewWillLayout:

Called before layouting in the grid view.

- (void)gridViewWillLayout:(NGridView *)gridView

Parameters

gridView

Related grid view object.

Declared In

NGridDelegate.h

– gridViewDidLayout:

Called after layouting in the grid view.

- (void)gridViewDidLayout:(NGridView *)gridView

Parameters

gridView

Related grid view object.

Declared In

NGridDelegate.h

– gridView:didTapCell:

Called after touch in the cell of the grid view.

- (void)gridView:(NGridView *)gridView didTapCell:(NGridCell *)cell

Parameters

gridView

Related grid view object.
cell

Cell which was touched.

Declared In

NGridDelegate.h

– gridView:didDoubleTapCell:

Called after double tap in the cell of the grid view.

- (void)gridView:(NGridView *)gridView didDoubleTapCell:(NGridCell *)cell

Parameters

gridView

Related grid view object.
cell

Cell which was touched.

Declared In

NGridDelegate.h

– gridView:didLongTapCell:

Called after long tap in the cell of the grid view and only if selection is off.

- (void)gridView:(NGridView *)gridView didLongTapCell:(NGridCell *)cell

Parameters

gridView

Related grid view object.
cell

Cell which was touched.

Declared In

NGridDelegate.h

– gridViewDidChangeSelection:

Called after selection changes in the grid view.

- (void)gridViewDidChangeSelection:(NGridView *)gridView

Parameters

gridView

Related grid view object.

Declared In

NGridDelegate.h

– gridView:didSelectArea:

Called after the area was selected in the grid view.

- (void)gridView:(NGridView *)gridView didSelectArea:(NGridSelectionArea *)area

Parameters

gridView

Related grid view object.
area

Selection area identify selected cells.

Declared In

NGridDelegate.h

– gridView:willSelectRowWithKey:

Called before the row with number rowKey was selected in the grid view.

- (void)gridView:(NGridView *)gridView willSelectRowWithKey:(NSInteger)rowKey

Parameters

gridView

Related grid view object.
rowKey

Key of the row.

Declared In

NGridDelegate.h

– gridView:willSelectColumnWithKey:

Called before the column with number columnKey was selected in the grid view.

- (void)gridView:(NGridView *)gridView willSelectColumnWithKey:(NSInteger)columnKey

Parameters

gridView

Related grid view object.
columnKey

Key of the column.

Declared In

NGridDelegate.h

– gridView:didSelectRowWithKey:

Called after the row with number rowKey was selected in the grid view.

- (void)gridView:(NGridView *)gridView didSelectRowWithKey:(NSInteger)rowKey

Parameters

gridView

Related grid view object.
rowKey

Key of the row.

Declared In

NGridDelegate.h

– gridView:didSelectColumnWithKey:

Called after the column with number columnKey was selected in the grid view.

- (void)gridView:(NGridView *)gridView didSelectColumnWithKey:(NSInteger)columnKey

Parameters

gridView

Related grid view object.
columnKey

Key of the column.

Declared In

NGridDelegate.h

– gridView:willChangeFrame:toFrame:

Called before the grid view frame changed.

- (void)gridView:(NGridView *)gridView willChangeFrame:(CGRect)fromFrame toFrame:(CGRect)toFrame

Parameters

gridView

Related gridView.
fromFrame

Frame before change (current frame).
toFrame

Frame after change.

Declared In

NGridDelegate.h

– gridView:didChangeFrame:toFrame:

Called after the grid view frame changed.

- (void)gridView:(NGridView *)gridView didChangeFrame:(CGRect)fromFrame toFrame:(CGRect)toFrame

Parameters

gridView

Related gridView.
fromFrame

Frame before change.
toFrame

Frame after change (current frame).

Declared In

NGridDelegate.h

– gridView:didTapSelectionArea:

Called if touch in the selection area is caught.

- (void)gridView:(NGridView *)gridView didTapSelectionArea:(NGridSelectionArea *)selectionArea

Parameters

gridView

Related gridView.
selectionArea

Selection area.

Declared In

NGridDelegate.h

– gridView:shouldUseExternalEditorForCellWithKey:

Asks the delegate whether the grid view should use an external editor.

- (BOOL)gridView:(NGridView *)gridView shouldUseExternalEditorForCellWithKey:(NGridCellKey *)cellKey

Parameters

gridView

Related gridView.
cellKey

Key of the cell.

Declared In

NGridDelegate.h

– gridView:editorForCellWithKey:

Asks the delegate to return editor for the specified cell.

- (NGridCellEditorBase *)gridView:(NGridView *)gridView editorForCellWithKey:(NGridCellKey *)cellKey

Parameters

gridView

Related gridView.
cellKey

Key of the cell.

Declared In

NGridDelegate.h

– gridView:willBeginEditingCellWithKey:

Called before the grid view is about to go into editing mode.

- (void)gridView:(NGridView *)gridView willBeginEditingCellWithKey:(NGridCellKey *)cellKey

Parameters

gridView

Related gridView.
cellKey

Key of the cell.

Declared In

NGridDelegate.h

– gridView:didFinishEditingCellWithKey:

Called after the grid view has left editing mode.

- (void)gridView:(NGridView *)gridView didFinishEditingCellWithKey:(NGridCellKey *)cellKey

Parameters

gridView

Related gridView.
cellKey

Key of the cell.

Declared In

NGridDelegate.h