Question

I’m crazy with a very simple Datagrid population via DataContext property (binding a DataTable) in a WPF User Control. I trasnport the code from User Control Project to a WPF Windows Project and it works fine. What happens? Bellow the code that works in WPF Window and dont works in WPF User Control:

XAML:

<DataGrid AutoGenerateColumns="true" ItemsSource="{Binding}" Height="282" HorizontalAlignment="Left" Margin="6,6,0,0" Name="datGrdFalhas" VerticalAlignment="Top" Width="494" FontWeight="Normal" IsReadOnly="True" FontSize="14" TabIndex="211" />

Code:
…

        DataTable datTblFalhas = new DataTable();
        datTblFalhas.Columns.Add("Alarme",
                                 typeof(string)
                                );
        datTblFalhas.Columns.Add("Momento",
                                 typeof(string)
                                );

        DataRow datRowAlarme = datTblFalhas.NewRow();
        datRowAlarme[0] = "a";
        datRowAlarme[1] = "b";
        datTblFalhas.Rows.Add(datRowAlarme);

        datGrdFalhas.DataContext = datTblFalhas;

…

Thanks,

Answer 1

Well friends, after too much tests, I discovered the very, very stupid error: In a method to clean the datagrid (called in tabitem show), I put the command:

    datGrdFalhas.ItemsSource = null;

and not

    datGrdFalhas.DataContext = null;

cleaning the {Binding} action writed in WPF.

Now works fine. Thanks very much for attention and answers, and sorry for inconvenience.