獲取 Windows 窗體 DataGridView 控件中選定的單元格、行和列

獲取 DataGridView 控件中選中的單元格

• 使用 SelectedCells 屬性。

  注意

  使用 AreAllCellsSelected 方法可避免顯示可能具有大量數據的單元格。

  private void selectedCellsButton_Click(object sender, System.EventArgs e)
  {
        Int32 selectedCellCount =
            dataGridView1.GetCellCount(DataGridViewElementStates.Selected);
      if (selectedCellCount > 0)
        {
          if (dataGridView1.AreAllCellsSelected(true))
            {
                MessageBox.Show("All cells are selected", "Selected Cells");
            }
          else
            {
                System.Text.StringBuilder sb =
                  new System.Text.StringBuilder();
  
              for (int i = 0;
                    i < selectedCellCount; i++)
                {
                    sb.Append("Row: ");
                    sb.Append(dataGridView1.SelectedCells[i].RowIndex
                        .ToString());
                    sb.Append(", Column: ");
                    sb.Append(dataGridView1.SelectedCells[i].ColumnIndex
                        .ToString());
                    sb.Append(Environment.NewLine);
                }
  
                sb.Append("Total: " + selectedCellCount.ToString());
                MessageBox.Show(sb.ToString(), "Selected Cells");
            }
        }
  }
  

獲取 DataGridView 控件中選中的行

• 使用 SelectedRows 屬性。若要使用戶能夠選擇行，您必須將 SelectionMode 屬性設置爲 FullRowSelect 或 RowHeaderSelect。

  private void selectedRowsButton_Click(object sender, System.EventArgs e)
  {
        Int32 selectedRowCount =
            dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected);
      if (selectedRowCount > 0)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
  
          for (int i = 0; i < selectedRowCount; i++)
            {
                sb.Append("Row: ");
                sb.Append(dataGridView1.SelectedRows[i].Index.ToString());
                sb.Append(Environment.NewLine);
            }
  
            sb.Append("Total: " + selectedRowCount.ToString());
            MessageBox.Show(sb.ToString(), "Selected Rows");
        }
  }
  

獲取 DataGridView 控件中選中的列

使用 SelectedColumns 屬性。若要使用戶能夠選擇列，您必須將 SelectionMode 屬性設置爲 FullColumnSelect 或 ColumnHeaderSelect。

private void selectedColumnsButton_Click(object sender, System.EventArgs e)
{
      Int32 selectedColumnCount = dataGridView1.Columns
          .GetColumnCount(DataGridViewElementStates.Selected);
    if (selectedColumnCount > 0)
      {
          System.Text.StringBuilder sb = new System.Text.StringBuilder();

        for (int i = 0; i < selectedColumnCount; i++)
          {
              sb.Append("Column: ");
              sb.Append(dataGridView1.SelectedColumns[i].Index
                  .ToString());
              sb.Append(Environment.NewLine);
          }

          sb.Append("Total: " + selectedColumnCount.ToString());
          MessageBox.Show(sb.ToString(), "Selected Columns");
      }
}