WPF DataGrid binding problem

Question

Lets say we have the following code in XAML (the datagrid is bound to an ObservableCollection and the column to a property of the ObservableCollection:

<WpfToolkit:DataGrid
        ItemsSource="{Binding Path=Collection}"
        HorizontalScrollBarVisibility="Hidden" SelectionMode="Extended"
        CanUserAddRows="False" CanUserDeleteRows="False"
        CanUserResizeRows="False" CanUserSortColumns="False"
     AutoGenerateColumns="False"
        RowHeaderWidth="17" RowHeight="25">
     <WpfToolkit:DataGrid.Columns>

      <WpfToolkit:DataGridTextColumn
       Header="Names" Width="2*"
       Binding="{Binding Path=Name}"/>

     </WpfToolkit:DataGrid.Columns>
</WpfToolkit:DataGrid>

How can you create a new column programmatically in C# with the binding set to a certain PropertyPath (in my case a property of an ObservableCollection)?

This is what I have right now:

Binding items = new Binding();
PropertyPath path = new PropertyPath("Name");
items.Path = path;



MyDataGrid.Columns.Add(new DataGridTextColumn()
{
   Header = "Names",
   Width =  275,
   Binding = items
});

I am pretty sure that the problem is in the PropertyPath but I do not know what I must write in it...

Thank you for any help!

Answer 1

I do this in my program.

I use another datagrid and MVVM, but the idea should be the same.

Create a collection that holds all the columns you need, and just bind this collection to the grid in xaml.

So don't define columns in xaml in this case, only in code.

something like this:

<WpfToolkit:DataGrid
        ItemsSource="{Binding Path=Collection}"
        HorizontalScrollBarVisibility="Hidden" SelectionMode="Extended"
        CanUserAddRows="False" CanUserDeleteRows="False"
        CanUserResizeRows="False" CanUserSortColumns="False"
        AutoGenerateColumns="False"
        RowHeaderWidth="17" RowHeight="25"
        Columns="{Binding Path=ColumnCollection}"
/>

Answer 2

I have almost the exact same code as you, I just create the binding in a slightly different way:

void Add(ColumnViewModel columnViewModel)
{
 var column = new DataGridTextColumn
 {
  Header = columnViewModel.Name,
  Binding = new Binding("[" + columnViewModel.Name + "]")
 };
 dataGrid.Columns.Add(column);
}

Answer 3

The reason my code was not working is that I was not writing the good property for the path. Thank you anyway for the suggestions!