Handling Mouse Scroll event of window datagrid in C#

Can anybody tell me how to handle mouse scroll event(vertical scroll) 开发者_如何学Goin a datagrid? If i scroll the mouse scroller, then datagrid will scrolls. I want to get rowIndex of datagrid's row that is displayed at the top when scroll the grid vertically.

can any body help me?

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Use the FirstDisplayedScrollingRowIndex property.

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Use DataGridView Scroll event

 if (e.ScrollOrientation == ScrollOrientation.VerticalScroll)
 {
      int i = dataGridView1.FirstDisplayedCell.RowIndex;
 }

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You can use MouseWheel and/or PreviewMouseWheel events of the DataGrid MouseWheel fires when the user ended scrolling, whilst the Preview one fires when the user is about to scroll

Concerning the topmodt drawn index, i cant say anything :/

Hope it helps :p