如何在視圖模型

Question

如何設置使用繼電器命令聲明MVVM RelayCommand，我用下面的方式，拋出接口錯誤的設置方法

 public RelayCommand ChartCommand 
    { 

     set 
     { 
      ChartCommand = new RelayCommand<string>(e => ExecuteChartCommand(e)); 

     } 
    } 
    public void ExecuteChartCommand(string vendor) 
    { 

    } 

Answer 1

你真正應該做這種方式：

private RelayCommand<string> m_ChartCommand; 
    public RelayCommand<string> ChartCommand 
    {  
     get 
     { 
      return m_ChartCommand ?? (m_ChartCommand = new RelayCommand<string>(e => ExecuteChartCommand(e));  
     } 
    } 

    public void ExecuteChartCommand(string vendor) 
    { 

    } 

。