Iam using extjs4.1.0
I want to have some items in the form panel side by side.
I have tried this having my necessary items in a component with a column layout.
Is there any other way to render some of the items in the form panel side by side without
using the component or container.
No, the Ext.form.Panel uses the form layout by default. When you specify a different layout, then you will not have fieldLabels displayed correctly. You have to use containers to make the layout still have fieldLabels using the form layout. It is not reasonably possible to do what you want here.
Related
I'm writing a codenameone application where I want to have an image displayed across the top of the screen as a header. I do not want to include this image in every form/container that I create so therefore I came up with the following solution:
I have a Main form which contains the image (North) and a container (Center) which will then hold all the components of the specific screen that I want to show.
I will then create containers that represent each individual screen. My idea was to add these containers to the container of the main form, one by one and that navigation between them would be handled by changing the contents of that main screen container.
But I cannot find out how to make this work. As long as I have one single screen to show it is easy... The main form container can be an embedded container that is set to show the container for the single screen. But when I try to navigate to another I cannot make it work.
So, is there another approach I should use?
If not, how should I handle navigation between screens?
Is this with a GUI builder app or with a handcoded app?
Either way a simple way of customizing this if your app has a side menu or Toolbar would be to customize the TitleArea UIID to include your background image. E.g. start with a modern theme like the Business Theme and in the designer theme change the title area border property to be "Empty".
Then define the background image to be the image you want with "scaled to fit" or "aligned bottom" depending on what you want. Make sure to include enough space in the image for the title are and use a multi image so it will adapt for other OS's.
Making first windows store app and need to have some controls show up at the top and bottom of every screen. When I did some WPF dev, I created a usercontrol and added it to every page. How is this done in windows store apps?
More specifically the header has a company logo and a status icon that changes based on an external resource (idle -> running, etc). The footer is where navigation happens in a somewhat linear fashion. Also, the footer displays the date and current time that continues to update. with the content in the middle changing based on what is selected in the footer.
There are a couple of different ways to do this. It really matters on whether you need it to be the same control (same instance) or if it is just a header/footer control which is added to each page and changes based on what you put into it.
Firstly, if this is something that can be incorporated into a CommandBar, that's the first thing I suggest you try. Then you can just create a StaticResource for each CommandBar, styled in the way you want for the header and footer. When you declare each page, in the root declaration, just set:
Page.TopAppBar="{StaticResource MyHeader}"
Page.BottomAppBar="{StaticResource MyFooter}"
You can make them Sticky and style them in any way that you would prefer, including having a collapsed version with just an ellipsis (...) to hide/show it. You can store all of the data for them inside of their own ViewModels, and have the control's DataContext just bind directly to the VM so that each instantiation pulls from the same data.
If it's not something that can be incorporated into a type of CommandBar, then I suggest you create your own Page subclass. The Template for it will wrap its ContentPresenter in your custom Header and Footer objects, likely in a Grid panel. This way will create a new copy of them each time, so they'll still need to bind to a ViewModel.
The final option that I see is to create a parent Page which has, similar to the subclass method, your header and footer wrapping the content. This time though, have them wrap a Frame. Then, all you have to do is call Frame.Navigate on that Frameand the header/footer controls will not be recreated, only the content in between them.
You can see something similar to this done in most of the Windows 8/8.1 app samples. They create a Content Frame, then navigate that through each page of the sample, generally on a selection from a navigation ListBox.
If you add a bit more information, I can try and tailor the answer a bit and provide some more specificity, but these are the general ways that I can see for you to accomplish what you have described.
Update:
Based on what you've said, to me it seems like the easiest thing to do would be to go with the third option, a Page wrapping a Frame. I suggest this because then it makes it quite easy for the bottom bar to affect navigation, and it sounds like you don't want the header or footer to be affected by page transitions.
If you check out the official ListView sample, you'll note their main page is declared something like this:
<Page
...>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<!-- Navigation and other stuff -->
<Frame Grid.Column="1" x:Name="ScenarioFrame" Margin="30,50,30,0" />
</Grid>
</Page>
This is your basic main page declaration. You can then declare three Rows, one for your header, one for your Content, and one for your footer. If you want the footer to pop in and out, you can totally build the footer you have described into a CommandBar and include it on this page. Whenever you need to Navigate, just call ScenarioFrame.Navigate from your code-behind. You can now create Pages like normal, and Navigate to them like you would any other app.
This should also be 'Universal', so you should be able to include it in a Universal app, so long as you make sure your footer scales to the size of the screen (which you should already do). If you do try this, make sure that your navigation code in your main page is as generic as possible and the majority of the 'specialty navigation', such as Panes and settings are handled each platform-specific page, or at least via messaging (such as that provided by MvvmLight) and a NavigationHelper class.
Hope this helps and happy coding!
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.
And in what conditions should you use one over the other?
The HTML controls intent is to merely show an existing HTML page in place with the goal of merely presenting it. With page control, you can extend it with behaviors, compose it with more page controls and have it work with your navigation model.
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.