Custom View in Xamarin Rating (SfRating)

18 May 20219 minutes to read

SfRating Items control provides support to add custom views.

NOTE

To use custom views in Xamarin.Forms UWP platform, you need to set ItemCount value.

Add SfRating items

To customize the view of rating items, create and set custom view as SelectedView and UnSelectedView of SfRatingItem. Refer to the following code snippet to create a custom view.

xaml

<rating:SfRating EnableCustomView="true">
        <rating:SfRating.Items>
            <rating:SfRatingItem/>                
        </rating:SfRating.Items>
    </rating:SfRating>

c#

SfRating rating= new SfRating();
SfRatingItem ratingItem = new SfRatingItem();
rating.Items = ratingItem;
rating.EnableCustomView = true;

Set selected view

The SelectedView property is used to apply the given SelectedView to selected rating item.

xaml

<rating:SfRatingItem>
        <rating:SfRatingItem.SelectedView>
            <Image Source="Angry_selected.png"/>
        </rating:SfRatingItem.SelectedView>
    </rating:SfRatingItem>

c#

ratingItem.SelectedView = new Image() { Source = "Angry_selected.png", Aspect = Aspect.Fill };

Set unselected view

The UnSelectedView property is used to apply the given UnSelectedView to unselected rating item.

xaml

<rating:SfRatingItem>
            <rating:SfRatingItem.UnSelectedView>
                <Image Source="Angry_Unselected.png"/>
            </rating:SfRatingItem.UnSelectedView>
        </rating:SfRatingItem>

c#

ratingItem.UnSelectedView = new Image() { Source = "Angry_Unselected.png", Aspect = Aspect.Fill };

Add Items

The Items property is used to hold the collection of SfRatingItem.

NOTE

SfRatingItem keeps both selected and unselected view respectively.

c#

ObservableCollection<SfRatingItem> ratingItemList = new ObservableCollection<SfRatingItem>();
	ratingItemList.Add(ratingItem);
	rating.Items = ratingItemList;

Enable custom items

When the EnableCustomItems property is enabled, the custom items added in the rating items will be displayed.

xaml

<rating:SfRating x:Name="rating" EnableCustomView="True" ItemCount="5">
        <rating:SfRating.Items>
            <collection:ObservableCollection x:TypeArguments="rating:SfRatingItem">
                <rating:SfRatingItem>
                    <rating:SfRatingItem.SelectedView>
                        <Image Source="Angry_selected.png"/>
                    </rating:SfRatingItem.SelectedView>
                    <rating:SfRatingItem.UnSelectedView>
                        <Image Source="Angry_Unselected.png"/>
                    </rating:SfRatingItem.UnSelectedView>
                </rating:SfRatingItem>
                <rating:SfRatingItem>
                    <rating:SfRatingItem.SelectedView>
                        <Image Source="UnHappy_selected.png"/>
                    </rating:SfRatingItem.SelectedView>
                    <rating:SfRatingItem.UnSelectedView>
                        <Image Source="UnHappy_Unselected.png"/>
                    </rating:SfRatingItem.UnSelectedView>
                </rating:SfRatingItem>
                <rating:SfRatingItem>
                    <rating:SfRatingItem.SelectedView>
                        <Image Source="Neutral_selected.png"/>
                    </rating:SfRatingItem.SelectedView>
                    <rating:SfRatingItem.UnSelectedView>
                        <Image Source="Neutral_Unselected.png"/>
                    </rating:SfRatingItem.UnSelectedView>
                </rating:SfRatingItem>
                <rating:SfRatingItem>
                    <rating:SfRatingItem.SelectedView>
                        <Image Source="Happy_selected.png"/>
                    </rating:SfRatingItem.SelectedView>
                    <rating:SfRatingItem.UnSelectedView>
                        <Image Source="Happy_Unselected.png"/>
                    </rating:SfRatingItem.UnSelectedView>
                </rating:SfRatingItem>
                <rating:SfRatingItem>
                    <rating:SfRatingItem.SelectedView>
                        <Image Source="Excited_selected.png"/>
                    </rating:SfRatingItem.SelectedView>
                    <rating:SfRatingItem.UnSelectedView>
                        <Image Source="Excited_Unselected.png"/>
                    </rating:SfRatingItem.UnSelectedView>
                </rating:SfRatingItem>
            </collection:ObservableCollection>
        </rating:SfRating.Items>
    </rating:SfRating>

c#

SfRating rating;
public MainPage()
{
    InitializeComponent();
    rating = new SfRating();
    rating.EnableCustomView = true;
    rating.ItemCount = 5;
    SfRatingItem angry = new SfRatingItem();
    angry.SelectedView = new Image() { Source = "Angry_selected.png" };
    angry.UnSelectedView = new Image() { Source = "Angry_Unselected.png" };
    SfRatingItem unhappy = new SfRatingItem();
    unhappy.SelectedView = new Image() { Source = "UnHappy_selected.png" };
    unhappy.UnSelectedView = new Image() { Source = "UnHappy_Unselected.png" };
    SfRatingItem neutral = new SfRatingItem();
    neutral.SelectedView = new Image() { Source = "Neutral_selected.png" };
    neutral.UnSelectedView = new Image() { Source = "Neutral_Unselected.png" };
    SfRatingItem happy = new SfRatingItem();
    happy.SelectedView = new Image() { Source = "Happy_selected.png" };
    happy.UnSelectedView = new Image() { Source = "Happy_Unselected.png" };
    SfRatingItem excited = new SfRatingItem();
    excited.SelectedView = new Image() { Source = "Excited_selected.png" };
    excited.UnSelectedView = new Image() { Source = "Excited_Unselected.png" };
    ObservableCollection<SfRatingItem> ratingItemList = new ObservableCollection<SfRatingItem>();
    customItems.Add(angry);
    customItems.Add(unhappy);
    customItems.Add(neutral);
    customItems.Add(happy);
    customItems.Add(excited);
    rating.Items = ratingItemList;
    this.Content = rating;
}