Could you tell me what I am doing wrong? I've downloaded and installed extension MVVMCross available on https://www.mvvmcross.com/. I've installed it using Tools/Extensions and Updates in VisualStudio 2017 environment. When I created new MVVMCross Multi-Page Xamarin Forms Application then for two existing pages, all works perfectly.
I next needed to add ContentPage, but I have a problem since my new Xamarin Forms ContentPage is not correct: file *.cs is visible in my solution but *.xaml is hidden.
The version of MVVMCross and MVVMCross.binding (core, forms, platform) are 5.2.1 and Xamarin.Forms is 2.3.4.270 and Xamarin.Essentials is 1.5.2.
Could anyone explain to me why I can't add a new page? Thank you in advance.
All steps attached as screens...
Yes Lucas Zhang - MSFT, you may be right. It looks like a problem with version of Xamarin.Forms or MVVMCross. I'm not sure what more? I had version 15.7.xx of VS2017. After creating new MVVMCross Multi-Page Xamarin.Forms application I have versions: MVVMCross (all libraries) 5.2.1, Xamarin.Forms 2.3.4.270. Then I've not got any errors but I couldn't add new ContentPage.
Below all my steps which I made myself to resolve this problem:
I've installed VS2019 too, but it has not resolved the problem.
I've updated Xamarin.Forms to the latest stable version 4.6.0.726 but I had on both version of VS the same problem after updating:
Error NETSDK1022 Duplicate 'EmbeddedResource' items were included. The .NET SDK includes 'EmbeddedResource' items from your project directory by default.
I've read the article on Stack Overflow about this but I couldn't fix the problem.
But then it was possible to add correct new ContentPage.
In my opinion, the best solution is to update Xamarin.Forms and fix the problem with Duplicate Resource. If you know what to do for this, tell me please.
Finally, I've back to my old version of VS2017 and I've updated it to the latest version 15.9.22. Now, I can create ContentPage and application works but from my point of view doesn't work perfectly. I can add picture to this comment but in my Solution after adding new Page I have two separate files in Page folder: *xaml, *.cs. They don't have connection like other pages (like on the screen below). But it works.
I think if I update Xamarin.Forms and I fix Duplicate Resource problem, It will work perfectly.
I had a lot of problem after updating Xamarin.Forms therefore I've returned and I've installed update of VS2017.
It would be perfect to describe how we can fix similar problems :-)
Related
The system loads the mono after the link is removed by default, and some code is currently reloaded. Using Assembly.load returns the default and cannot be updated
By byte [] load two mono references will appear but the application cannot find new references
You could change the Target Framework to update the Mono.Android version.
I built a custom theme for DNN several months ago using the Christoc templates for Visual Studio. I needed to make a small HTML adjustment today so I re-opened the solution and made the change but when I rebuilt the project, I get several build errors, presumably because it no longer recognizes my DNN dll:
The type or namespace name 'DotNetNuke' could not be found (are you missing a using directive or an assembly reference?)
I checked my C:\path_to\dnndev.me\bin\DotNetNuke.dll and it's still there so I'm not sure why Visual Studio isn't seeing it.
When I built the skin originally, I was running DNN 9.1.1 but have since upgraded to 9.3.2. Could that be causing my issue?
I read elsewhere that I could be building on the incorrect version of .NET framework but I don't know what version to use for DNN 9.3.2 so I tried several different version with no change in results.
How can I solve this issue?
UPDATE:
Per the answer here, I rebuilt with .NET 4.7.2 and it did not solve my issue.
UPDATE 2:
Okay, so the small change I made was adding another layout page like the Home.ascx and Edit.ascx files that come with the template. If I remove the new layout files, the project builds fine.
What could I be doing wrong when adding a new layout?
What you read about the .Net framework version is correct. You need to 4.7.2.
The problem was a new layout I had created. I right clicked on the project and selected Add > New Item and chose Web Forms User Control. This was the wrong way to add a new layout.
I successfully added it by copy/pasting one of the template's pre-existing layouts and renaming it. The project builds fine now.
Ah, now I understand what went wrong. Adding a Web (Forms) User Control is not completely wrong, as a skin (or theme) is a kind of Web User Control, and has the same extension (.ascx).
What you have to do is deleting the code behind file (.ascx.vb or .ascx.cs), and change the first line of the ascx file to
<%# Control language="vb" AutoEventWireup="false" Explicit="True" Inherits="DotNetNuke.UI.Skins.Skin" %>
(But copying another skin file is also a good solution as propably you have most of the references to the skin object already there)
It seems like that in the new version of XCode, Core Data is something i have to install manually. The check box that used to be there when i create a new project is gone.
I've searched to the end of the internet, finding no answer that seems to work in the new version of XCode. Can someone confirm my problem, and does someone have a solution for it? Thanks in advance.
Core Data checkbox is not available in all type of projects. If you try to create an empty project, the "Use core data" checkbox is still there (this was the same in xcode 4).
You can add core data manually by following this tutorial:
http://wiresareobsolete.com/wordpress/2009/12/adding-core-data-existing-iphone-projects/
you could create a new master-detail Xcode project (check the 'use core data' checkbox when creating) and just copy the code from there.
this is particularly helpful when combined with:
http://wiresareobsolete.com/2009/12/adding-core-data-existing-iphone-projects/
i wanted to implement charts in my silverlight app.
i have installed SL4 in my VS.
The problem is i m not getting the chartingToolkit:Chart control in my xaml page.
Gives error saying control not found .
Did i forget to add any references?
or did my installation went wrong?
do i have to download any other plugin?
Thanks
Sajad
chartings controls are from the Silverlight toolkit, you need to install it first.;)
http://silverlight.codeplex.com/
i have added the assemblies as mentioned by Xin.
System.Windows.Controls.DataVisualization.Toolkit,
System.Windows.Controls.Toolkit
System.Windows.Controls.Toolkit.Internals
But my problem was actually solved by adding this to namespace area.
xmlns:toolkit="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"
and then i could use toolkit:Chart
:)
How do I install the Core Plot framework into Xcode 4?
This older tutorial has instructions on how to install it for Xcode 3, but I could not find any similar instructions for Xcode 4. What do I need to do in order to use this framework with the newer Xcode?
I made one here that followed what I did:
http://recycled-parts.blogspot.com/2011/07/setting-up-coreplot-in-xcode-4.html
Hope it helps!
It appears that I was unable to set up core plot project for the reason that I had corrupt example project which code I was using.
This are the steps:
open a project
add quartzcore framework
add other linker flags: -ObjC -all_load
add CorePlot.xcodeproj to existing project (drag and drop)
add sample class (from examples folder, drag and drop)
drag coreplot framework from added CorePlot.xcodeproj to linked frameworks
in IB
drop object and associate it to sample class
drop custom view to window and associate it vith CPTLayerHostingView
connect object and custom view
And hat is that (may sound complicated, but can be done in under a minute)
Steps can be taken in any order, except last few.
Everithing is very similar to instructions at: http://www.switchonthecode.com/tutorials/using-core-plot-in-an-iphone-application except the way it is done in xcode4 is actually easier.
Here are screenshoots that clarify the above steps: http://www.optimae.biz/data/stackoverflow/coreplot.pdf
Hope this will help someone.