通过C＃DataGridView删除数据库行？
在.NET 3.5 winforms应用程序中，我有一个DataGridView组件，它使用TableAdapter到MySQL数据库。
我可以通过向BindingSource_AddingNew事件添加代码来添加新记录。
private void someBindingSource_AddingNew(object sender, AddingNewEventArgs e) { DataRow ThisDataRow = ((DataRowView)((BindingSource)sender).Current).Row; if (ThisDataRow.RowState == DataRowState.Added) { someTableAdapter.Insert(ThisDataRow.ItemArray[1].ToString()); } }
我可以通过向BindingSource_CurrentItemChanged事件添加代码来更新记录。
private void someBindingSource_CurrentItemChanged(object sender, EventArgs e) { DataRow ThisDataRow = ((DataRowView)((BindingSource)sender).Current).Row; if (ThisDataRow.RowState == DataRowState.Modified) { someTableAdapter.Update(ThisDataRow); } }
如何处理删除事件？
**更新1 **
要处理删除事件，添加了一个按钮（您需要在按下按钮之前选择该行）：
private void btnDelete_Click(object sender, EventArgs e) { Int32 selectedRowCount = dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected); if (selectedRowCount > 0) { for (int i = 0; i < selectedRowCount; i++) { //delete from database someTableAdapter.Delete(Convert.ToUInt16(dataGridView1.Rows[dataGridView1.SelectedRows[i].Index].Cells[0].Value)); //refresh datagridview this.dataGridView1.Rows.RemoveAt(this.dataGridView1.SelectedRows[i].Index); } }
您正在寻找DataGridView.UserDeletingRow事件。
private void DataGridView1_UserDeletingRow(object sender, DataGridViewRowCancelEventArgs e) { // It is a cancellable event, you could cancel the delete on certain conditions. e.Cancel = true; }