For questions related to the CollectionView class in Xamarin.Forms projects. When using this tag also include the [xamarin.forms] and [xamarin] tags where possible.
Questions tagged [xamarin.forms.collectionview]
13 questions
2
votes
1 answer
ContentView - Binding Context is set to null
Currently I am playing around with .Net Maui but I maybe it's the same behavior as Xamarin.
I've created a simple Search-Control which is based on a ContentView.
ObjectSearchControl.xaml
Phil
- 462
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1
vote
1 answer
Xamarin community toolkit TouchEffect.Command not working in CollectionView
I'm trying to have a long press and short press command in a CollectionView. I'm using Xamarin.Community.ToolKit But target ViewModel Command is not being called. TouchEffect works when it's outside of CollectionView. But not when it's inside the…
Rene Tomlinson
- 23
- 5
1
vote
2 answers
CollectionView VisualStateManager can't change selection color
I am trying to customize the selection color of a cell in a CollectionView but no matter how I try it, it's always an ugly grey.
I want my item template to have rounded corners, but when I select an item the I see ugly square grey corners behind it,…
Le Mot Juiced
- 3,761
- 1
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1
vote
1 answer
How can I visually make my Selected Item in a CollectionView (Horizontal), show at the center of my screen?
I have a ListView with some items, and when I select one of those items, I am moved to a new page with a Horizontal CollectionView, with my SelectedItem as the item I selected on the page before. I have this part working.
My problem is, if the item…
solacking
- 317
- 2
- 9
1
vote
1 answer
Xamarin.Forms implement Lazy Loading in CollectionView
This is my CollectionView xaml file:
…
Rajzer
- 1,174
- 11
- 24
1
vote
1 answer
CollectionView updating ImageButton scroll repeating UI issue
I've got a CollectionView containing an ImageButton. When the image is pressed I replace a.png with b.png.
This is working fine but when I scroll down the list, every 10th item is now showing b.png!
If instead of setting the button.source, I called…
KevinUK
- 5,053
- 5
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- 49
0
votes
1 answer
Best way to load a grouped collection on Xamarin.Forms ListView/CollectionView with incremental loading
What would be the best way to load a grouped collection on Xamarin.Forms ListView/CollectionView with incremental loading?
For example, say a collection contains several groups and each group contains a list of items.
[
[123, 143, 341234,…
Tharindu
- 386
- 3
- 17
0
votes
2 answers
Is there a way to have 2 different objects following one another in a CollectionView in Xamarin.Forms?
I have a CollectionView that shows a list of Categories object like so:
And I'd like to have a list of SubCategories to be listed right after it as if it was the same list.
I know CollectionView only takes one item but I wanted to know if there was…
Jimmy
- 105
- 15
0
votes
1 answer
How can I add a SelectionChanged in a CollectionView from code?
I would like to call a function when a cell of a Collection View (created in cs) were tapped.
Here is the code:
new StackLayout { Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
…
user15254403
- 23
- 6
0
votes
1 answer
Object Binding in CollectionView is not working properly with SwipeItem
In my ContentPage XAML file, I have a CollectionView setup like this:
KadoLakatt
- 43
- 5
0
votes
0 answers
e.CenterItemIndex turns to 0, each time group is change (OS)
I am using Scrolled event in collectionView for iOS. If CollectionView contains groups, e.CenterItemIndex turns to 0 each time group is changing.
Is there any way i can fix this?
private void CollectionViewtems_Scrolled(object sender,…
papa dp
- 65
- 6
0
votes
1 answer
CollectionView GridItemsLayout Change BackgroundColor of nested Item (Button)
I have a problem concerning a CollectionView with a GridItemsLayout. In my application, I have a StackLayout with a horizontal CollectionView(GridItemsLayout), which contains a Button bound to a certain category.
Whenever a button is clicked/tapped,…
FabianK
- 23
- 6
0
votes
1 answer
How to use FindByName in CollectionView
How to implement FindByName inside a CollectionView with GestureRecognizers as the call. Please correct if something is wrong.
private void ItemTapped(object sender, EventArgs e)
{
SelectedAmount = (int)0.0f;
var grid…
borneo
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- 5