c# - Deleting rows in a datagrid -

I have recently moved from WinForms to WPF and it seems that it is more complicated to deal with datagrids. . . Data grid x; & lt :: name = "When I run the application manually in the datagrid from the user interface to the datagrid

I have done the XAML code following the DataGridAdd" HorizontalAlignment = "Left" margin = "591,360,0,0" VerticalAlignment = "top" height = "118" width = "202" AutoGenerateColumns = "false" ScrollViewer.CanContentScroll = "false" VerticalScrollBarVisibility = "Disabled" grid. Column = "1" canuser diameter = "true" & gt; & Lt; DataGrid.Columns & gt; & Lt; DataGridTextColumn = Binding "{Binding Varenr}" ClipboardContentBinding = "{x: Nulled}" Header = "Vare Nr .:" width = "100" /> & Lt; DataGridTextColumn binding = "{binding antal}" clipboard contentbinding = "{x: ft}" header = "antal" width = "100" /> & Lt; /DataGrid.Columns> & Lt; / Data grid & gt;

and background code:

  public partial squares window 1: window {observable collection & lt; Add & gt; List; Public Window 1 () {InitializeComponent (); List = New Observational Collection & lt; Add & gt; (); DataGridAdd.ItemsSource = List; } Add public category {public string Varenr {get; Set; } Receive public string {receive; Set; }} Add Private Zero Button Print Clip (Object Sender, RoutedEventArgs e) addval = DataGridAdd.SelectedItem Add; While (DatagreatsAd.Entimes.Count & gt; 1) {string vare = addval.Varenr; Wire antal1 = addval.Antal; List.Remove (addval); }}}   
 The issue is that, when I am adding data to a row and pressing the print button, it removes the expected objects:  < P>   
 The problem occurs when I use several rows Adding:  
   
 while The loop gets infinite, because the DataGridAd.Eight. In this case the value is not less than "2". How can I handle this problem? For example, if you have more than 2 items in the DataGrid Ad, for example, if you have more than 2 items in the Data Grid Ad, So your code will be excited like this:   
 
 added addval = as DataGridAdd.SelectedItem;  
 While (dataGridAdd.Items.Count> 3) // dataGridAdd.Items.Count = 3, list.Count = 3  
 string vare = addval.Varenr; Wire antal1 = addval.Antal;  
 List. Remove (add); // True, delete the return successfully, list.count = 2  
 While (dataGridAdd.Items.Count> 2) / / False, DataGrid add.Items.Count = 2  < Li> string Vare = addval.Varenr; String antal1 = addval.Antal;  
 List. Remove (additional); // Return false, failed to delete, list.count = 2 ....   
 Then, the DataGrid Ad.its.Count Value does not go below "2"  
 By the way, why use this?  
 
  Update:   
 To run this code, and you  dataGridAdd.SelectedIndex = -1  and < After the code> Data Grid Ad.itedEdit = empty  list. Remove (adwale); So, if you remove again, this flat will return.  
  Private Zero Button_Click (Object Sender, RoutedEventArgs e) [Addval = dataGridAdd.SelectedItem Add as add; Console.WriteLine (dataGridAdd.SelectedIndex); Console.WriteLine (dataGridAdd.SelectedItem); String vare = addval.Varenr; Wire antal1 = addval.Antal; List.Remove (addval); Console.WriteLine (dataGridAdd.SelectedIndex); Console.WriteLine (dataGridAdd.SelectedItem); }