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(shù)據(jù)的單元格。

  Visual Basic 復(fù)制代碼 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 Integer
  For 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# 復(fù)制代碼 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(hù)能夠選擇行，您必須將 SelectionMode 屬性設(shè)置為 FullRowSelect 或 RowHeaderSelect。

  Visual Basic 復(fù)制代碼 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 Integer
  For 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# 復(fù)制代碼 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(hù)能夠選擇列，您必須將 SelectionMode 屬性設(shè)置為 FullColumnSelect 或 ColumnHeaderSelect。

  Visual Basic 復(fù)制代碼 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 Integer
  For 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# 復(fù)制代碼 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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轉(zhuǎn)載于:https://www.cnblogs.com/chenbg2001/archive/2010/08/29/1812057.html

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