How can I use search in the grid using CollectionView with multiple conditions?

Question

I have Textbox and Comboboxs and a GridView and I would like to filter some columns of the grid with all controls ( Comboboxs and the Textbox ), I have this code that return a view filtered with one condition ( Textbox ) to a custom column.

Remark: I'm not using MVVM pattern.

    GridView.ItemsSource = MyList.ToList();
    ListCollectionView view = (ListCollectionView)CollectionViewSource.GetDefaultView(MyList);

    view.Filter = delegate (object item) { return (item as User).Name.Contains(Name_txt.Text); };
    GridView.ItemsSource = view;


    public class User 
     {
       public Id { get; set; }
       public Name { get; set; }
     } 

How can I filter the datagrid columns with more than one condition ( input )?

Answer 1

You should add all conditions to the Filter predicate, eg:

view.Filter = delegate (object item)
{ 
    User user = item as User;
    if (user == null)
        return false;

    return user.Name.Contains(Name_txt.Text)
        && comboBox1.SelectedItem == ?
        && ...; 
};