How to give name to any element inside CollectionView in Maui .Net

Question

Hello,

I need to give name to any element in CollectionView template to use it in code behind.

I want to use this element and give it more actions like shadow .

I need to control this shadow on platform which I will use.

I tried to use x:Name but it not working . and give me error say

"Error CS0103 The name 'testborder' does not exist in the current context"

Thanks,

Answer 1

Hello,

I tried to use x:Name but it not working . and give me error say"Error CS0103 The name 'testborder' does not exist in the current context"`

Because elements will be re-used in Datatemple of Collectionview, you can not get elements by x:Name.

But you can use data-binding and mvvm to implement it.

I need to control this shadow on platform which I will use.

For example, I want to add the shadow for Image control like following code. I bind the two properties for Image Shadow called ShaodowColor and ShadowRadius

  <CollectionView ItemsSource="{Binding Monkeys}">
                <CollectionView.ItemTemplate>
                    <DataTemplate>
                        <Grid Padding="10">
                     
                            <Image 
                                   Source="{Binding ImageUrl}"
                                   Aspect="AspectFill"
                                   HeightRequest="60"
                                   WidthRequest="60" >
                                <Image.Shadow>
                                    <Shadow Brush="{Binding ShaodowColor}"
                                            Offset="20,20"
                                            Radius="{Binding ShadowRadius}"
                                            Opacity="0.8" />    
                                </Image.Shadow>

                           </Image>
                           
                        </Grid>
                    </DataTemplate>
                </CollectionView.ItemTemplate>
            </CollectionView>

Then you can add these property in your Model.

public class Monkey
{
    
    public string ImageUrl { get; set; }
    public string ShaodowColor { get; set; }
    public int ShadowRadius { get; set; }
}

Best Regards,

Leon Lu

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