Determine which item is currently shown

[dnalabs]

Hi,

I am creating a very simple image slider using SlideView. I have three images and I simply display them one by one.
This is my code:

01.<telerikPrimitives:RadSlideView Grid.RowSpan="2"
02.                                        AdjacentItemsPreviewMode="None"
03.                                        IsLoopingEnabled="False"
04.                                        Orientation="Horizontal"
05.                                        x:Name="radSlideView"
06.                                        ItemsSource="{Binding}"
07.                                        ItemRealizationMode="ViewportItem"
08.                                        Margin="-12"
09.                                        CacheMode="BitmapCache">
10.
11.            <telerikPrimitives:RadSlideView.ItemTemplate>
12.                <DataTemplate>
13.                    <Image Source="{Binding ImagePath}"
14.                           HorizontalAlignment="Center"
15.                           VerticalAlignment="Center"/>
16.                </DataTemplate>
17.            </telerikPrimitives:RadSlideView.ItemTemplate>
18.        </telerikPrimitives:RadSlideView>

What I want to do is detect if the user has reached the last image. if yes, then display a button to close the slide view and navigate to another page.
Please tell me how can I detect the image index currently being shown to the user or if the user has reached the last image of the slideview so that I can display my button.

Thanks

[Kiril Stanoev]

Hi dnalabs,
You can use the SelectionChanged of RadSlideView to achieve what you're looking for.
Let's say you have a collection that holds your items.

List<MyDataItem> items = new List<MyDataItem>();

In the SelectionChanged event of RadSlideView, you can ask the collection (items) to give you the index of the currently selected item.

private void RadSlideView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    MyDataItem item = (MyDataItem)e.AddedItems[0];
    int index = this.items.IndexOf(item);
    if (index == this.items.Count - 1)
    {
        // the last item has been reached
    }
}

You can insert your logic for showing the button in the if statement.
Let us know if this helps.

Regards,
Kiril Stanoev
Telerik

[dnalabs]

It worked. Thank you so much!