public int GetRowIndexAt(int mouseLocation_Y)
{
if (dvaw.FirstDisplayedScrollingRowIndex < 0)
{
return -1;
}
if (dvaw.ColumnHeadersVisible == true && mouseLocation_Y <= dvaw.ColumnHeadersHeight)
{
return -1;
}
int index = dvaw.FirstDisplayedScrollingRowIndex;
int displayedCount = dvaw.DisplayedRowCount(true);
for (int k = 1; k <= displayedCount; )
{
if (dvaw.Rows[index].Visible == true)
{
Rectangle rect = dvaw.GetRowDisplayRectangle(index, true); // 取该区域的显示部分区域
if (rect.Top <= mouseLocation_Y && mouseLocation_Y < rect.Bottom)
{
return index;
}
k++;
}
index++;
}
return -1;
}