iOS中的AppDelegate导航到页面上的SfDataGrid时失败

Question

我有问题，iOS上的SfDataGrid在Android上正常工作时，当我尝试导航到一个名为“Hovedside”，有一个SfDataGrid 它进入页面Main.cs在iOS的一部分，并在 UIApplication.Main(args, null, "AppDelegate");

using System; 
using System.Collections.Generic; 
using System.Linq; 

using Foundation; 
using UIKit; 

namespace PrismUnityApp2.iOS 
{ 
    public class Application 
    { 
     // This is the main entry point of the application. 
     static void Main(string[] args) 
     { 

      try 
      { 
       UIApplication.Main(args, null, "AppDelegate"); 
      } 
      catch (Exception e) 
      { 

       throw; 
      } 
     } 
    } 
    } 

失败，此输出：

System.NullReferenceException: Object reference not set to an instance of an object 

at Syncfusion.SfDataGrid.XForms.iOS.ExtendedScrollViewRenderer.WillMoveToWindow (UIKit.UIWindow window) [0x0000b] in <eee3a5d11e6d415a9b8017bfe242a045>:0 
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr) 
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/3818/3983064a/source/xamarin-macios/src/UIKit/UIApplication.cs:79 
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/3818/3983064a/source/xamarin-macios/src/UIKit/UIApplication.cs:63 
at PrismUnityApp2.iOS.Application.Main (System.String[] args) [0x00002] in C:\Users\asr\Desktop\GBS APP bakups\PrismUnityApp2 b4 scanner\PrismUnityApp2\PrismUnityApp2.iOS\Main.cs:20 

没有什么错误列表

如果我删除SfDataGrid然后导航蛮好的页面

我有所需的组件，其syncfusion上 https://help.syncfusion.com/xamarin/sfdatagrid/getting-started

我觉得我在想念中的AppDelegate东西说明，但无法找出什么它可以使用Visual Studio的2015年社区，xamarin是

using System; 
using System.Collections.Generic; 
using System.Linq; 

using Foundation; 
using UIKit; 
using Prism.Unity; 
using Microsoft.Practices.Unity; 
using Syncfusion.SfDataGrid.XForms.iOS; 

namespace PrismUnityApp2.iOS 
{ 
    // The UIApplicationDelegate for the application. This class is responsible for launching the 
    // User Interface of the application, as well as listening (and optionally responding) to 
    // application events from iOS. 
    [Register("AppDelegate")] 
    public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate 
    { 
     // 
     // This method is invoked when the application has loaded and is ready to run. In this 
     // method you should instantiate the window, load the UI into it and then make the window 
     // visible. 
     // 
     // You have 17 seconds to return from this method, or iOS will terminate your application. 
     // 
     public override bool FinishedLaunching(UIApplication app, NSDictionary options) 
     { 
      ZXing.Net.Mobile.Forms.iOS.Platform.Init(); 

      global::Xamarin.Forms.Forms.Init(); 
      SfDataGridRenderer.Init(); 
      LoadApplication(new App(new iOSInitializer())); 
      return base.FinishedLaunching(app, options); 
     } 
    } 

    public class iOSInitializer : IPlatformInitializer 
    { 
     public void RegisterTypes(IUnityContainer container) 
     { 

     } 
    } 

} 

https://github.com/ZarpGitHub/PrismUnityApp-gbs

IM，PR ism v6.2.0 Xam.Plugin.Geolocator v3.0.4和Syncfusion 14.3451.0.49。 大多运行它搭载Android 6.0.1版本一个索尼XPERIA Z3和使用 API 23 我还用它测试的虚拟iphone 6S加IOS 10.0

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Answer 1

这个问题已经从我们这边修复了。该修复程序将在我们即将发布的第4卷主要发布中提供，计划本周发布。

Regards，

Divakar。