The Marionette CollectionView displays a Backbone collection object by rendering each objects through the specified childView View object.
Questions tagged [collectionview]
1294 questions
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2 answers
Adding fade out effect to the collection view
I want to add a fade effect to the top of the collection view as in the photo below. The list in this photo is a feature that exists in the live broadcast of Instagram. I tried CAGradientLayer but didn't get the result I wanted. Thanks in advance…

coderboy55
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votes
1 answer
Collectionview specific layout
I am trying to find an approach to get my collectionview to have this layout for the cells with paging
The image should always be in center and have parts from left and right if they existed

Khaled Rafat
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How to Populate CollectionView with Sql Query with combination of Distinct, Sum and Count .... in Xamarin
SQL QUERY SAMPLE
using (SQLiteConnection conn = new SQLiteConnection(con.dBasePath))
{
SalesRecords.ItemsSource = conn.Query
("SELECT DISTINCT([soldProduct]),…

mosSoft
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votes
1 answer
How to set a XAML Button size inside a CollectionView.Footer?
I have a button within my CollectionView Footer that reaches the ends of the screen horizontally. I want to be able to set the width either to the size of the text, or to a width I pick.
Changing HorizontalOptions does nothing. I've been messing…

RonnieG
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2 answers
UI in xamarin for items with variable number of rows
Suppose I have the following classes:
class Person
{
public string Name { get; set; }
public IList Expenses { get; set; }
public int Total => Expenses.Sum(o => o.Amount);
}
class Expense
{
public string ExpenseName { get;…

rettiseert
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1 answer
Xamarin Forms multiply CollectionViews Horizontal and Vertical
I try to use a CollectionView in a other CollectionView like this. My problem is there wont display me the second CV like there dont have a source.
I guess the BindingContex can be the problem but i dont have a idea how i fix it.
…

JdDEV
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votes
2 answers
CollectionView "Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value"
I made a collectionView using storyboard everything works fine the collectionView fetches the data from the firebase as expected. when I tried to make the same collectionView grammatically so I've more control over the layout I got this error:…

Wen
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votes
1 answer
How to change textLabel outside CollectionView when cell is clicked in Swift 4?
can you help me how can I change text in label, which is outside the CollectionView but in the same ViewController, when cell is clicked? I need different text in label with different cell.
P.S. I'm new in swift :)

ifF3
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votes
2 answers
Swift reconfigure collectionview cells
so I am trying to change the background color of the collection view cell that is clicked, however, when I call the CollectionView.reloadData() method the backgrounds don't change. I am thinking that reloading the data only checks for adding and…

Jonathan Yuan
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votes
1 answer
How do you create a footer that exists at the end of CollectionView that has a GridItemsLayout?
I have a CollectionView with a GridItemsLayout with a list of subjects as the ItemsSource. I want the footer to appear at the end of the CollectionView as if it were the last item, but at this time, it simply appears at the vertical end of the…

DaddyProphet
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1 answer
How to do horizontally autoscroll for colletionViewCell?
I have a collectionView at the top of my App view and I want to display some ads inside it,
I made a ready array for some pictures that I want to display them in the collection view.
Now I'm looking for a method that I can make them horizontally…

Let.Simoo
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votes
1 answer
Collection view loading only one cell at a time
Edited
I am using custom collection cells to load in collectionview. But when the collection view loadeds expecting behaviour cellforindex delegate will call for 3 indexpath but in this case only calling 0th indexpath 3 time.
override func…

Anju
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1 answer
Segue from selected collection view cell sends to wrong collection view
I am using swift. I'm trying to create a collectionView segue to lead to a new viewController.
I have a series of (lets say 8) different images and labels as an array within the collectionView, and the when selected, I want the user to be sent to…

Eddie T
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votes
1 answer
UICollectionView Horizontal Scroll swiping left and right position of cell changes?
Horizontal Scroll in UICollectionView when i scroll left or right the cell not position right ? For each index item i can see the next item coming at the edge and scrolling further more of next cell is coming out to the current index. I want to show…

Vignesh Krish
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Why is collectionView-cell suddenly bigger?
Using swift-5.0.1, iOS-12.2,
I observe a strange behaviour on a UICollectionView:
There are screen-wide cells that show an image inside my collectionView.
My observation is that whenever the image could not be fetched - in such a case, the above…

iKK
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