"无法确定呼叫者&QUOT的应用程序标识;对于ViewModelLocator

问题描述

在App.xaml中，我有一个错误在定义ViewModelLocator。应用程序启动并运行良好，但它让我很烦，在Studio。想知道，有什么可以成为理由。亮的行是

 < VM：ViewModelLocator X：键=ViewModelLocatorD：IsDataSource =真/> 
  

错误：

If to get inside of vm:ViewModelLocator, there's no sign of errors there. Should i re-check all my viewmodels and add IsoStorage designtime protection?

if (!System.ComponentModel.DesignerProperties.IsInDesignTool)
{
    settings = IsolatedStorageSettings.ApplicationSettings; 
}

解决方案

In case someone has the same issue. Just recommendation: try to open your project in Blend and attach VS to it. You'll immediately see, where problem is (usually, it is about accessing IsoStorage during designtime).

EDIT: to be more accurate, adding DesignMode check solves my problem with highlighting.

public ViewModelLocator()
    {
        if (ViewModelBase.IsInDesignModeStatic)
            return;

    ****

这篇关于"无法确定呼叫者&QUOT的应用程序标识;对于ViewModelLocator的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！