Winforms DataGridView SQL小型CRUD示例

我有一個非常簡單的表，其中包含兩個標記爲唯一的字符串列。任何人都可以告訴我如何連接datagridview允許最基本的crud操作。我打算只使用網格而不使用其他控件。這意味着有一個刪除操作的鏈接列。Winforms DataGridView SQL小型CRUD示例

我已經嘗試了百萬次迭代有數據表，綁定源，數據適配器，命令建設者..

非常感謝。

void dataGridView1_DataError(object sender, DataGridViewDataErrorEventArgs e) 
{ 

} 

private void bindingSource_PositionChanged(object sender, EventArgs e) 
{ 
     // if the user moves to a new row, check if the 
     // last row was changed 
     BindingSource thisBindingSource = 
      (BindingSource)sender; 

     DataRow ThisDataRow = 
      ((DataRowView)thisBindingSource.Current).Row; 
     if (ThisDataRow == _lastDataRow) 
     { 
      // we need to avoid to write a datarow to the 
      // database when it is still processed. Otherwise 
      // we get a problem with the event handling of 
      //the DataTable. 
      throw new InvalidOperationException("It seems the" + 
       " PositionChanged event was fired twice for" + 
       " the same row"); 
     } 

     UpdateRowToDatabase(); 
     // track the current row for next 
     // PositionChanged event 
     _lastDataRow = ThisDataRow; 
    } 

    private void UpdateRowToDatabase() 
    { 
     if (_lastDataRow != null) 
     { 
      if (_lastDataRow.RowState == DataRowState.Modified 
       || _lastDataRow.RowState == DataRowState.Added 
       || _lastDataRow.RowState == DataRowState.Deleted) 
      { 
       DataRow[] rows = new DataRow[1]; 
       rows[0] = _lastDataRow; 
       _dataAdapter.Update(rows); 
      } 
     } 
    }   

void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e) 
    { 
     Debug.WriteLine(string.Format("Click Col: {0} Row:{1}", e.ColumnIndex, e.RowIndex)); 

     if (!_edit && e.ColumnIndex == 0) 
     { 
      if (e.RowIndex < _dataTable.Rows.Count) 
      { 
       DataRow[] rows = new DataRow[1]; 
       rows[0] = _dataTable.Rows[e.RowIndex]; 
       _bindingSource.RemoveCurrent(); 
       _dataAdapter.Update(rows); 
      } 
     } 
    }

來源

2012-04-19 Neil