I got this ListView commonly bound to a Observable Collection in a MVVM pattern.
The Binding is stable from the moment the Page is loaded. In the first 2-3 secs there is an async HTTP GET thing, that pulls some data and dejosn it into the Observable Collection.
Is there a way to use the standard transition mechanism and get some cool animation in to that?
For now it only appears.
I tried some XAML with the transition attribute but nothing has changed.
Related
Initial view :
After collapsing the groupings :
After expansion :
I just can't figure out why are the events not showing.
There is no refetching going on,
just seems like the events aren't being rendered. The weird part is that any resize of the entire window, the events are being rendered.
I've tried using the cellDidMount callback to refetch the events, it is fixing the problem, however this solution is very costly on the backend since it is making calls to fetch the events however many Resources exist on that grouping.
Let's say I have a blazor component that uses a lot of resources to create an animation, it doesn't make sense to keep rendering it if the user scroll past the component (i.e. the component not visible in the screen). Is there a way to detect this using Blazor?
I am aware that I can rely on Intersection Observer API with JS, but I am looking for something in Blazor/C#.
Thanks,
We use wix/react-native-navigation and tried to use Context API from react.We need all the screenshots to receive data and when changing in one place, there is a change in all places.The api context is not suitable, it makes a context for each screen, that is, when changed in 1 screen, the data will not be rerender in another. I would also not like to use Redux since editors are not signed in all screenshots, and it’s too difficult to forward props.
Does anyone have any ideas how to solve this problem?
This seems to be a case for the model view controller pattern.
Each screen would be a view in this pattern. You need to trigger a rerender when the data changes. You can define functions in the react context (model) and then reference it in your lifecycle methods (controller) of your different views.
A am developing a list based app, wherein I am tryin to use iScroll5 to implement lot of animations and smooth scrolling functions. I would like to do lazy loading of my contents wherein I want to load first 50 list elements to DOM and based on user scroll event asynchronously bind the next set of list elements to the DOM.
Am I on the right track to go with the iScroll5 - Infinite scrolling API or is there any other library which does the job for me ?
If you want to use infinite scrolling , means on page load some content are pre load and then user scroll down and other content are load on scroll with lazy loging, if i am understan right then please try to use jscroll jquery plugin.. it's very good for infinite scroll.
http://jscroll.com/ you can find here document and example of this plugin.
Regards,
vinit
Both GridView and ListView have a nice "bounce-effect" when you try to scroll beyond the begin or end.
Some applications (on other platforms) use this "drag-beyond-end" gesture as a trigger for some actions, like loading more items.
How can I detect this "state" (=user is at the begin/end and tries to scroll beyond that) in Windows Store App using XAML/C# ?
The rubber-band effect cannot be detected by code in a Windows 8 app (verified with the XAML controls team).
One way you could do that would be by handling all the inputs and the rubber-band effect yourself, but that is a bit of work, it reduces scrolling performance and requires manual handling of input on any list elements as well, so I would only recommend it as a last resort.
Also note the problem of the mouse input scenario since mouse scrolling doesn't involve this pull-beyond-edge behavior.
If you just want to load more items when you reach the end of the GridView, implement the ISupportIncrementalLoading interface with your collection derived from ObservableCollection<T>. See the answer here Load more items on grid view scroll end.