在ComboBox中更改选择时，在DataGridView中更改了提交

3 回答

• 6

  我解决了这个问题：

  myDataGridView.EditingControlShowing += new System.Windows.Forms.DataGridViewEditingControlShowingEventHandler(myDataGridView_EditingControlShowing);
  
      private void myDataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
      {
          if (e.Control.GetType() == typeof(DataGridViewComboBoxEditingControl))
          {
              ComboBox cmb = (ComboBox)e.Control;
              cmb.SelectionChangeCommitted -= new EventHandler(cmb_SelectionChangeCommitted);
              cmb.SelectionChangeCommitted += new EventHandler(cmb_SelectionChangeCommitted);
          }
      }
  
      void cmb_SelectionChangeCommitted(object sender, EventArgs e)
      {
          dgvPresupuesto.CurrentCell.Value = ((DataGridViewComboBoxEditingControl)sender).EditingControlFormattedValue;
      }
  

  回复于 2024-04-27T09:52:03+08:00
• 2

  我最终这样做了 . 我不知道这是否是“首选”的方式，或者它是否会在以后产生任何副作用，但现在似乎有效：

  this.gridView.EditingControlShowing += this.GridViewOnEditingControlShowing;
  
  private void GridViewOnEditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
  {
      ComboBox cellComboBox = e.Control as ComboBox;
      if (cellComboBox != null)
      {
          // make sure the handler doen't get registered twice
          cellComboBox.SelectionChangeCommitted -= this.CellComboBoxOnelectionChangeCommitted;
          cellComboBox.SelectionChangeCommitted += this.CellComboBoxOnelectionChangeCommitted;
      }
  }
  
  private void CellComboBoxOnelectionChangeCommitted(object sender, EventArgs e)
  { 
      DataGridViewComboBoxEditingControl comboBox = sender as DataGridViewComboBoxEditingControl;
      if (sender == null)
      {
          return;
      }     
      if (comboBox.SelectedValue == null)
      {
          return;
      }    
      if (this.gridView.CurrentCell.Value == comboBox.SelectedValue)
      {
          return;
      }    
      this.gridView.CurrentCell.Value = comboBox.SelectedValue;        
  }
  

  回复于 2024-04-27T09:52:03+08:00
• 0

  组合框的值的变化实际上是与网格相关联的编辑控件 . 因此，要启动任何内容，您必须在DataGrid的EditingControlShowing事件中为该特定列添加这些内容

  private void dg_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
  {
    if (dg.CurrentCell.ColumnIndex == 0)
    {
      ComboBox cmbox = e.Control as ComboBox;
      cmbox.SelectedValueChanged += new EventHandler(cmbox_SelectedValueChanged);
    }
  }
  

  您可以在Combobox的所选cvalue更改事件中调用单元格值更改事件

  回复于 2024-04-27T09:52:03+08:00