本文介绍了并非所有代码路径都返回一个值,任何一个请提供解决方案的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

public class ProductModel
{
   public string InsertProduct(Product product)
   {
      try
      {
         GarageEntities db = new GarageEntities();
         db.Products.Add(product);
         db.SaveChanges();

         return product.Name + "was succesfully inserted";
      }
      catch (Exception e)
      {
         return "Error:" + e;
      }
   }

推荐答案

public string InsertProduct(Product product)
{
   try
   {
      GarageEntities db = new GarageEntities();
      db.Products.Add(product);
      db.SaveChanges();
      // May be moved to end of function
      return product.Name + "was succesfully inserted";
   }
   catch (Exception e)
   {
      return "Error:" + e;
   }
   // Make the compiler happy or return success here
   return "";
}







询问此类问题的提示:

始终包含编译器代码(此处为CS0161),因为这样可以清楚地说明发生了什么。但是,在网上搜索消息和/或代码也会回答这个问题。




A tip for asking about such problems:
Always include the compiler code (CS0161 here) because this makes it clear what happened. However, searching the web for the message and/or code would have answered this too.


这篇关于并非所有代码路径都返回一个值,任何一个请提供解决方案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!

08-12 13:29