• 使用 SelectedCells 属性。

  注意
  使用 AreAllCellsSelected 方法可避免显示可能具有大量数据的单元格。

  Visual Basic

  复制代码

  Private Sub selectedCellsButton_Click( _ByVal sender As Object, ByVal e As System.EventArgs) _Handles selectedCellsButton.Click
  
  Dim selectedCellCount As Integer = _        dataGridView1.GetCellCount(DataGridViewElementStates.Selected)
  
  If selectedCellCount > 0 Then
  
  If dataGridView1.AreAllCellsSelected(True) Then
  
              MessageBox.Show("All cells are selected", "Selected Cells")
  
  Else
  
  Dim sb As New System.Text.StringBuilder()
  
  Dim i As IntegerFor i = 0 To selectedCellCount - 1
  
                  sb.Append("Row: ")                sb.Append(dataGridView1.SelectedCells(i).RowIndex _                    .ToString())                sb.Append(", Column: ")                sb.Append(dataGridView1.SelectedCells(i).ColumnIndex _                    .ToString())                sb.Append(Environment.NewLine)
  
  Next i
  
              sb.Append("Total: " + selectedCellCount.ToString())            MessageBox.Show(sb.ToString(), "Selected Cells")
  
  End If
  
  End If
  
  End Sub

  C#

  复制代码

  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");        }    }}

• 使用 SelectedRows 属性。若要使用户能够选择行，您必须将 SelectionMode 属性设置为 FullRowSelect 或 RowHeaderSelect。

  Visual Basic

  复制代码

  Private Sub selectedRowsButton_Click( _ByVal sender As Object, ByVal e As System.EventArgs) _Handles selectedRowsButton.Click
  
  Dim selectedRowCount As Integer = _        dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected)
  
  If selectedRowCount > 0 Then
  
  Dim sb As New System.Text.StringBuilder()
  
  Dim i As IntegerFor i = 0 To selectedRowCount - 1
  
              sb.Append("Row: ")            sb.Append(dataGridView1.SelectedRows(i).Index.ToString())            sb.Append(Environment.NewLine)
  
  Next i
  
          sb.Append("Total: " + selectedRowCount.ToString())        MessageBox.Show(sb.ToString(), "Selected Rows")
  
  End If
  
  End Sub

  C#

  复制代码

  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");    }}

• 使用 SelectedColumns 属性。若要使用户能够选择列，您必须将 SelectionMode 属性设置为 FullColumnSelect 或 ColumnHeaderSelect。

  Visual Basic

  复制代码

  Private Sub selectedColumnsButton_Click( _ByVal sender As Object, ByVal e As System.EventArgs) _Handles selectedColumnsButton.Click
  
  Dim selectedColumnCount As Integer = dataGridView1.Columns _        .GetColumnCount(DataGridViewElementStates.Selected)
  
  If selectedColumnCount > 0 Then
  
  Dim sb As New System.Text.StringBuilder()
  
  Dim i As IntegerFor i = 0 To selectedColumnCount - 1
  
              sb.Append("Column: ")            sb.Append(dataGridView1.SelectedColumns(i).Index.ToString())            sb.Append(Environment.NewLine)
  
  Next i
  
          sb.Append("Total: " + selectedColumnCount.ToString())        MessageBox.Show(sb.ToString(), "Selected Columns")
  
  End If
  
  End Sub

  C#

  复制代码

  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");    }}

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