將屬性值添加到對象從字典

Question

所以我有一個名爲PaypalTransaction的對象這裏是開始它，不需要顯示所有屬性來解釋問題。

public class PaypalTransaction 
{ 
    public string first_name { get; set; } 
    public string last_name { get; set; } 
    public string custom { get; set; } 
    public string payer_email { get; set; } 
    .... 
    .... 
} 

現在我的問題是，我有一個foreach循環具有每個鍵作爲一個字符串

PaypalTransaction trans = new PaypalTransaction(); 
foreach(string key in keys) 
{ 
    // key = "first_name" , or "last_name , or "custom" 
    // how would I set the value of trans based on each key 
    // so when key = "first_name , I want to set trans.first_name 
    // something like trans.PropName[key].Value = 
    // I know that code isn't real , but with reflection i know this is possible 

} 

Answer 1

你可以從跨對象屬性的收集和循環之前進行緩存。你可以遍歷它並設置適當屬性的值。以下示例可能有所幫助：

PaypalTransaction trans = new PaypalTransaction(); 

      PropertyInfo[] properties = trans.GetType().GetProperties(); 

      foreach (string key in keys) 
      { 
       properties.Where(x => x.Name == key).First().SetValue(trans, "SetValueHere"); 

      } 

您可能需要優化以上代碼以獲得性能和其他可能的例外。