public void ScrollToRow(int theRow)
{
    //
    // Expose the protected GridVScrolled method allowing you
    // to programmatically scroll the grid to a particular row.
    //
    if (DataSource != null)
    {
        GridVScrolled(this, new ScrollEventArgs(ScrollEventType.LargeIncrement, theRow));
    }
}

// Get current user scroll position
int scrollPosition = myGridView.FirstDisplayedScrollingRowIndex;

// Do some work
...

// Rebind the grid and reset scrolling
myGridView.DataBind;
myGridView.FirstDisplayedScrollingRowIndex = scrollPosition;

public void ScrollToRow(int theRow)
{
    //
    // Expose the protected GridVScrolled method allowing you
    // to programmatically scroll the grid to a particular row.
    //
    if (DataSource != null)
    {
        GridVScrolled(this, new ScrollEventArgs(ScrollEventType.LargeIncrement, theRow));
    }
}

Public Sub ScrollToRow(ByVal theRow As Integer)
    '
    ' Expose the protected GridVScrolled method allowing you
    ' to programmatically scroll the grid to a particular row.
    '
    On Error Resume Next

    If Not DataSource Is Nothing Then
        GridVScrolled(Me, New ScrollEventArgs(ScrollEventType.LargeIncrement, theRow))
    End If
End Sub

int v= dataGridView1.VerticalScrollingOffset ;
int h= dataGridView1.HorizontalScrollingOffset ;
//...reload
dataGridView1.VerticalScrollingOffset = v;
dataGridView1.HorizontalScrollingOffset =h;

int indexOfTopMostRow = HitTest(dataGrid.RowHeaderWidth + 10,
                                dataGrid.PreferredRowHeight + 10).Row;

if(gridEmployees.FirstDisplayedScrollingRowIndex != -1) gridEmployees.FirstDisplayedScrollingRowIndex = 0;