How to get the top or bottom and left or right viewable row and column indexes in WinForms GridControl?

Row and column index

To get the Top/Left/Bottom/Right viewable Row and Column index of the grid, use the following code.

// Top Row Index.
this.gridControl1.TopRowIndex.ToString();

// Left Column Index.
this.gridControl1.LeftColIndex.ToString();

//Bottom Row Index.
this.gridControl1.ViewLayout.LastVisibleRow.ToString();

//Right Column Index.
this.gridControl1.ViewLayout.LastVisibleCol.ToString();

'Top Row Index.
Me.gridControl1.TopRowIndex.ToString()

'Left Column Index.
Me.gridControl1.LeftColIndex.ToString()

'Bottom Row Index.
Me.gridControl1.ViewLayout.LastVisibleRow.ToString()

'Right Column Index.
Me.gridControl1.ViewLayout.LastVisibleCol.ToString()

Visible row and column index of the GridControl