I am developing a windows 8 app using JavaScript & HTML.
I have a page which has different sections laid horizontally. I have links for these sections in another page. I want the page to load from that specific section (meaning page should start from this section).
I am using a grid template and have a listview in the main page. When i click on any item in a group ,navigate to that page and come back to the main page. I want the main screen to load from the section that i have selected before.The screen should automatically scroll to that section like how it is happening from semantic zoom.
Any help in this regard will be of great use.
Thanks
For the first part, it should be enough to set the scrollLeft property of the container to the offsetLeft property of the element you want to scroll to.
The second part can be achieved by storing the scrollPosition attribute of the ListView before navigating away and setting it to its old value after navigating back.
As Ma_li said, scroll-left is one solution -- especially for non ListView content. The key here is how much of the experience you want to maintain when navigating back. One option (again, for non-listview content) is to find the element you want to be onscreen, and calling scrollIntoView on the element. However, this only brings the item on screen -- it won't bring it all the way to the left (or right, for BIDI languages), it scrolls just enough to et the whole element on screen.
For ListViews, you should use the indexOfFirstVisibleItem (or, indexOfLastVisibleItem) to scroll the listview to the correct location. This is key, because the listview is a virtualized control, this provides the most accurate & reliable method for scrolling the listview position.
Thanks Dominic & ma_il
I tried document.getElementBy("Id").focus() for the 1st Question and it worked. But i am getting a problem in this.
I have four divs Horizontally say "divA divB divC divD"
Data for the divA is coming from cloud. When i click on the link for divD in the main screen. it is not taking me to the corresponding section for the first time as it takes some time to load the divA. when click on the link for divD second time, it takes to the respective section. It is working if i use setInterval() but the DivA is shown for few seconds when the page loads and then scrolls to divD which is not good.
Related
I have to scroll right in cypress for a specific view part. Sometimes it automatically detect, but sometimes after scroll only it detect the button. Scrollbar has no unique ID. What is the solution for this scenario?
I tried cy.scroll(500,0) but this dont work
You can get the element then use .scrollIntoView() chained to the returned element.
cy.get('#uniqueId')
.scrollIntoView()
// now it will be in current viewport
Let's say I have an app built like the Microsoft weather app.
On launch of app I need to download the forecast from the internet. While waiting to do so I also need to display a progress indicator. Which of the following (if any) is recommended?
Render the page fully with navigation controls (hamburger side menu) as well as page content (but without values since they are data bound). Then overlay a modal control like a popup with a progress indicator inside and a cancel button.
Render only the application root shell with the progress indicator inside (no other content, or navigation controls like hamburger menu are visible). Then once the task is complete, navigate to the home page with content.
Render the home page with content and navigation controls, but hide only the content (with visibility = collapsed) and show a progress indicator in its place. Once data is downloaded hide the progress indicator, and show the content.
I don't know which one of these I'm supposed to use. Is there a recommended way to do this?
Or is there a better way I didn't think of?
There is no one perfect answer for this question but I will try to explain the most common solution. None of points above is good or bad. It is better to concentrate on the user experience.
Render fully page with navigation controls and display loading popup is not really bad idea - user see the whole page with progress ring for instance and has chance to cancel it. But remmber that if data is not loaded or user abort pulling it there will be empty content in the app (if this is first time when user launched the app).
One of the best solutions for scenario you wrote is to use extended Splash Screen. Once you app is launched first Splash Screen is displayed and when you extend it, you can add progress ring to indicate that data is being retrieved.
This is very elegant way to present to the user.
Please see below guidline how to do it:
UWP Extended splash screen
I have dgrid with paging, 50 rows per page, and using a memory store
The last 2 columns are editable select and filtering select, so when I change page it takes some time.
The problem is that there is not indication to the user that something is happening.
No loading message or a spinning image.
So I want to know if there is an event that fires up before the change of page, so I can manually show a spinner.
So far I have not been able to find such an event.
I used firebug to listen to all click that fires up when I click on the grid, and clicked on the next button to see what will happen.
The only event that fired up was after the rendering of the page. Before the rendering I got nothing.
So how can I show a busy indicator to user when I change page on the dgrid?
A div with the class dgrid-loading is added to the content area of the grid when Pagination loads a new page, and that div spans the full width and height of the content area. You can add styles to this class to add a loading indicator.
You can also add a loading message via the grid's loadingMessage property.
There's an explanation and demonstration of the loading node in the Grids and Stores tutorial in the Customizing Messages section.
To share a common display layout in a Split template Windows Store app, I put a Back button, title TextBlock, and another button in a UserControl, and then use that control in most of my pages. My problem is that in the main page, neither of the buttons will react to pointer activity, be it pointer over or clicking. However, it works fine in any other page. To isolate it, I created a blank app and duplicated the UserControl, but it works in that case.
How can I debug this?
Thanks.
-John
In an "ItemView" page of a "Split" template app, the Grid containing the back button and title must be below the GridView and ListView in the XAML code. Apparently the GridView, with no Grid.Row, and a Grid.RowSpan="2" needs to overlay the first and second rows, and if the button is beneath the GridView, it must assume it is not visible and doesn't need to respond to events. I moved my new user control instance to below the GridView, and the buttons work now.
This whole scheme of overlaying both rows makes no sense to me, but without the Grid.RowSpan="2", the items don't split nicely into two rows for me. I think such odd layout should have a comment explaining it in the template. Perhaps it could save someone else from this same kind of issue.
i create item details page divided to 3 rows ,i put scrollviewer in row no 2, scrollview contains two pargraph and webview ,when i scroll the page ,webview appear on the row no 3 means that it ovelay row no 3
WebView suffers from an airspace issue. as it is not hosted in the same render target as the rest of the app, but rather in a separate HWND window. There is currently no good way around that other than manually resizing the WebView to make it fit in your boundaries.
You can use a WebViewBrush instead of the WebView, but that has a set of limitations of its own - basically it is just a non-interactive brush. Its documentation shows how you can use it to temporarily show the non-interactive page while some other content is rendered on top of it.
Or, if you only want to display a Web page, WebViewBrush may be able to be used.
official sample code: XAML WebView control sample - ScenarioInput4.ComboBox1_DropDownOpened()