C# WP8无效操作

C# WP8无效操作,c#,windows-phone-8,invalidoperationexception,C#,Windows Phone 8,Invalidoperationexception,我得到一个: Microsoft.Phone.ni.dll中发生了“System.InvalidOperationException”类型的异常,但未在用户代码中处理该异常 当我这样做时: ApplicationBarIconButton nextButton = new ApplicationBarIconButton(new Uri("/Images/next.png", UriKind.Relative)); nextButton.Text = "Next"; ApplicationBa

我得到一个:

Microsoft.Phone.ni.dll中发生了“System.InvalidOperationException”类型的异常,但未在用户代码中处理该异常

当我这样做时:

ApplicationBarIconButton nextButton = new ApplicationBarIconButton(new Uri("/Images/next.png", UriKind.Relative));
nextButton.Text = "Next";

ApplicationBarIconButton backButton = new ApplicationBarIconButton(new Uri("/Images/back.png", UriKind.Relative));
nextButton.Text = "Previous";

ApplicationBar.Buttons.Add(nextButton);
ApplicationBar.Buttons.Add(backButton); //<---- Error when adding this
ApplicationBarIconButton nextButton=newapplicationbariconbutton(新Uri(“/Images/next.png”,UriKind.Relative));
nextButton.Text=“下一步”;
ApplicationBarIconButton backButton=newapplicationbariconbutton(新Uri(“/Images/back.png”,UriKind.Relative));
nextButton.Text=“上一步”;
应用程序栏.按钮.添加(下一个按钮);

ApplicationBar.Buttons.Add(backButton)// 这是因为您没有为backbutton设置
Text
属性

ApplicationBarIconButton backButton = new ApplicationBarIconButton(new Uri("/Images/back.png", UriKind.Relative));
backButton.Text = "Previous"; //<< you have nextButton.Text
ApplicationBarIconButton backButton=newapplicationbariconbutton(新Uri(“/Images/back.png”,UriKind.Relative));

backButton.Text=“上一步”// 嘿,问题是您没有实际设置“后退”按钮的文本,而是设置了“下一步”按钮。两个按钮上的文本:)

可能是与资源相关的问题,如这里所示?如果先添加“后退”按钮,会发生什么情况?那就可以缩小范围了!非常感谢。啊,该死的,比我先到