检查所选内容跨越DataGridView的行数

我想你必须对它们进行唯一的计数:

HashSet<int> rowIndexes = new HashSet<int>();
foreach (DataGridViewCell cell in dgv.SelectedCells) {
  if (!rowIndexes.Contains(cell.RowIndex)) {
    rowIndexes.Add(cell.RowIndex);
  }
}

selectedRowCount = rowIndexes.Count;

一种方法是迭代每行的每个单元格,并检查 .Selected 一个单元格的属性,尽管在发布后,我看到了Larstech的答案,它可能更有效,因为它只查看选定的单元格:

//Variable to hold the selected row count
int selectedRows = 0;
//iterate the rows
for(int x = 0; x < DataGridView.Rows.Count; x++)
{
   //iterate the cells
   for(int y = 0; y < DataGridView.Rows[x].Cells.Count; y++)
   {
        if(DataGridView.Rows[x].Cells[y] != null)
           if(DataGridView.Rows[x].Cells[y].Selected)
           {
              //If a cell is selected consider it a selected row and break the inner for
              selectedRows++;
              break;
           }
   }


}