c# – 代码分析避免过度复杂 – 只需设置命令

我有一个带有16个按钮的WPF表单.当我的视图模型初始化时,我需要将所有16个设置为RelayCommand对象.这是我的所有Initialize()方法,但这会导致代码分析错误CA1502：AvoidExcessiveComplexity.

这是抑制CA警告的好例子,还是有更优雅的方法来设置这些命令而不会导致CA违规？

[SuppressMessage("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity", Justification = "Simply setting the commands")]
private void Initialize()
{
    this.AddApplicationCommand      = new RelayCommand(_ => AddApplication());
    this.DeleteApplicationCommand   = new RelayCommand(_ => DeleteApplication(), _ => ApplicationIsSelected);
    this.RefreshApplicationsCommand = new RelayCommand(_ => RefreshApplications());
    this.SaveApplicationCommand     = new RelayCommand(_ => SaveApplication(), _ => ApplicationIsSelected);

    this.ForceInstallationCommand       = new RelayCommand(_ => ForceInstallation(), _ => ApplicationIsSelected);
    this.DeleteForceInstallationCommand = new RelayCommand(_ => DeleteForceInstallation(), _ => ApplicationIsSelectedAndForceExists());

    this.AddTaskCommand            = new RelayCommand(_ => AddTask(), _ => ApplicationIsSelected);
    this.EditTaskCommand           = new RelayCommand(_ => EditTask(), _ => TaskIsSelected());
    this.DeleteTaskCommand         = new RelayCommand(_ => DeleteTask(), _ => TaskIsSelected());
    this.ImportTasksCommand        = new RelayCommand(_ => ImportTasks(), _ => ApplicationIsSelected);
    this.ExportTasksCommand        = new RelayCommand(_ => ExportTasks(), _ => TaskIsSelected());
    this.ImportLegacyTasksCommand  = new RelayCommand(_ => ImportLegacyTasks(), _ => ApplicationIsSelected);            
    this.MoveTaskUpCommand         = new RelayCommand(_ => MoveRowUp(), _ => TaskIsSelected());
    this.MoveTaskDownCommand       = new RelayCommand(_ => MoveRowDown(), _ => TaskIsSelected());

    this.AddVariableGroupCommand    = new RelayCommand(_ => AddVariableGroup());
    this.RemoveVariableGroupCommand = new RelayCommand(_ => RemoveVariableGroup(), _ => VariableGroupIsSelected());
}

解决方法:

由于使用匿名方法,这是误报.该规则不会将编译器生成的分支识别为生成的代码.有关现有错误报告,请参阅https://connect.microsoft.com/VisualStudio/feedback/details/555560/method-using-many-lambda-expressions-causes-high-cyclomatic-complexity和https://connect.microsoft.com/VisualStudio/feedback/details/295703/incorrect-cyclomatic-complexity-with-lambdas.

标签：c,code-analysis,maintainability
来源： https://codeday.me/bug/20190626/1290741.html