Listview - select item by viewmodel and visible on the screen

[Rodrigo]

Hi!

How do I select an item in the listview at runtime (mvvm) and make this item always visible on the screen? Can you help me?

Example:
I press a button to select any item from the list. If this item is not appearing on the screen, listview automatically positions it on the item, making it visible.

Regards,

Rodrigo

[Didi]

Hello Rodrigo,

Telerik ListView provides SelectedItem property which is bindable, so you can define a property in the view model and bind it to the SelectedItem, you can change the value runtime. The property in the view model should be of type the business model. In my case the business model is Client class.

<telerik:RadListView  x:Name="listView" Margin="10"
                              ItemsSource="{Binding Names}"
                              SelectionMode="Multiple"
                              SelectedItem="{Binding SelectedValue, Mode=TwoWay}">

    private Client selectedValue { get; set; }
    public Client SelectedValue 
    { 
        get => this.selectedValue;
        set
        {
            if (this.selectedValue != value)
            {
                this.selectedValue = value;
                OnPropertyChanged();
            }
        }
    }

If you want to scroll to this item, you can use the programmatic scrolling- ScrollItemIntoView method, and to scroll to the SelectedItem. This is a logic that must me implemented on your side.

I hope the information will be of help.

Regards,
Didi
Progress Telerik