在列表上单击时，请选择ComboboxItem

Question

I have a form with a 2 items combobox in XAML:

<ComboBox x:Name="cb_Category" PlaceholderText="Category" HorizontalAlignment="Left" Height="40" Margin="20,88,0,0" VerticalAlignment="Top" Width="437" SelectionChanged="cb_Categoria_SelectionChanged">
<ComboBoxItem Content="Products"/>
<ComboBoxItem Content="Services"/>
</ComboBox>

I converted the combobox selected item to string so it can be added to my database and appear on my list.

    private void cb_Category_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (cb_Category.SelectedItem != null)
        {
            var combo = (ComboBox)sender;
            var item = (ComboBoxItem)combo.SelectedItem;
            content = item.Content.ToString();
        }
    }

Now what I want to do is when I select a item in my list, the combobox selects and show the same item. But I have no idea how?

App Sample

As you can see when I click on a Grid Item I get all the values of the item in the textboxes except the combobox

Answer 1

In order to set the List item to your ComboBox you need to set the ItemsSource property as below:

cb_Category.ItemsSource = yourList;

EDIT as per the updated Post

Once your data is loaded you can do something like this on list SelectionChanged :

cb_Category.SelectedIndex = cb_Category.Items.IndexOf(myListView.SelectedItem);

If your List and ComboBox is not sharing the same data structure then you can do something like this:

Your List data structure:

Public Class MyList
{
  public int Property1 {get;set;}
  public int Property2 {get;set;}
  public string Property3 {get;set;} //Property mapped for ComboBox
  public int Property4 {get;set;}
}

Your ComoboBox DataStructure:

Public Class MyComboBox
{
  public int Property1 {get;set;}
  public string Property2 {get;set;} //Property that needs to be display in ComboBox
}

Than on list SelectionChanged first find the item in your ComboBox and then set it's `SelectedIndex'

var selectedItem = myComboBoxDataSource.where(x=>x.Property2.Equals(((MyList)myListView.SelectedItem).Property3));
cb_Category.SelectedIndex = cb_Category.Items.IndexOf(selectedItem);