WPF Save Changes in DataGrid to DataTable

Question

My application requires that changes made in the WPF DataGrid control are saved back to the DataTable . I have managed to save data from the DataGrid to DataTable , however, the data saved from the DataGrid does not show the changes I have made, it just shows the data that was already there when the DataGrid was first populated.

I have got this far:

public void UpdateQueueData(object sender, DataGridRowEditEndingEventArgs e)
 {
     if (e.EditAction == DataGridEditAction.Commit)
     {
         DataGridRow dgRow = e.Row;
         DataRowView rowView = dgRow.Item as DataRowView;
         DataRow drItem = rowView.Row;
         Queue.Rows.RemoveAt(e.Row.GetIndex());
         Queue.ImportRow(drItem);
         WriteXML();
     }
 }

This works but it does not save the changes, it just saves the DataRow as it was before it was changed in the DataGrid .

Am I missing something?

Answer 1

Finally found the answer!. I have to Get the DataRow that was being changed:

private void dataGrid_CurrentCellChanged(object sender, EventArgs e)
{
    DataTable dt = ((DataView)dataGridQueue.ItemsSource).ToTable();
    // Set the value of my datatable to the the changed version before 
    // writing it so a file.
    dt.WriteXMLScema(...);
}

Answer 2

进行更改后，您需要调用AcceptChanges 。