DataGridView.IsCurrentRowDirty（）不具有可編輯DataGridViewComboBoxColumn

設置I具有與被結合到一個List<IBrand>一個DataGridViewComboBoxColumnDataGridView。在這個組合框列中，我允許用戶選擇一個現有的值或鍵入一個新值。當用戶選擇現有值時，IsCurrentRowDirty()正確返回true。當用戶鍵入一個值時，IsCurrentRowDirty()顯然應該返回true時總是返回false。DataGridView.IsCurrentRowDirty（）不具有可編輯DataGridViewComboBoxColumn

我已經打過電話在CurrentCellDirtyStateChanged事件DataGridView.CommitEdit()但不起作用

我如何在DataGridViewComboBoxColumn用戶輸入值，該行設置爲髒嗎？

下面是相關的代碼。

感謝，

凱爾

 public void BindBrands() 
     { 
      DataGridViewComboBoxColumn comboBox = (DataGridViewComboBoxColumn)dgvReference.Columns[(int)ReferenceColumnsIndex.Brand]; 

      comboBox.DisplayMember = "Name"; 
      comboBox.ValueMember = "Self"; //"Self" returns "this" 
      comboBox.DataSource = brands; 
     } 


      //This enables the DataGridViewComboBoxColumn to be editable by the user 
      private void dgvReference_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) 
      { 
       DataGridViewComboBoxColumn column = GetColumn<DataGridViewComboBoxColumn>(dgvReference, 

       (int) ReferenceColumnsIndex.Brand); 

      if (column != null) 
      { 
       ComboBox comboBox = e.Control as ComboBox; 
       if (comboBox != null) 
       { 
        comboBox.DropDownStyle = ComboBoxStyle.DropDown; 
       } 
      } 
     } 

     private void dgvReference_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) 
     { 
      switch (e.ColumnIndex) 
      { 
       case (int)ReferenceColumnsIndex.Brand: 

        DataGridViewComboBoxColumn comboBox = dgvReference.Columns[(int)ReferenceColumnsIndex.Brand] as DataGridViewComboBoxColumn; 
        if (e.ColumnIndex == comboBox.DisplayIndex) 
        { 
         IBrand brand = new Brand(e.FormattedValue.ToString()); 
         if (!brands.Contains(brand)) 
         { 
          //If the brand does not exist, add it to the datasource of the combobox 
          brands.Add(brand); 
          dgvReference.NotifyCurrentCellDirty(true); //<== THIS LINE FIXES THE ISSUE 

         } 

         //When setting the .Value to brand here, IsCurrentRowDirty() does not return true 
         dgvReference.Rows[e.RowIndex].Cells[(int)ReferenceColumnsIndex.Brand].Value = brand; 
        } 

        break; 
    } 
}

來源

2013-04-12 Kyle Novak

好吧，我想通了，如何強制IsCurrentRowDirty()方法返回true。我需要添加以下代碼線所示在我的例子：

dgvReference.NotifyCurrentCellDirty(true);

調用此對新進入的品牌，將迫使該行爲IsCurrentRowDirty()方法返回true。

來源

2013-04-16 18:09:19

DataGridView.IsCurrentRowDirty（）不具有可編輯DataGridViewComboBoxColumn

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