Helper class is used for calculating the floating cell size when text size exceeds the cell size Calculate the floating cell size based on horizontal alignment like left, right or center and TextWrapping. Set and Reset the flood cells when used by the floating cells. The floating cell size, position and range will be stored in properties where in GridColumn are FloatingCellSize, FloatingCellStartPosition, and FloatingCellRange. Set and reset the clipped region in FloatingCellClippedRegion in GridColumn for clip the floating cell while scrolling. Set the display text size in DisplayTextSize in GridColumn which will be calculated when update the column Reset the flood cells. While editing current cell moves to out of view then reset the flood cells Based on alignment, Alt+Enter or floating cell height changed while editing when next or previous column goes to out of view, set and reset the floating cell selection border thickness. Check the current row column index in flood cell based on mouse point for selection.
public static class GridFloatingCellHelper