并非所有代码路径都返回值错误 [英] getting not all code paths return value error

问题描述

公用字符串categoryName(双类别)
    {
       字符串poolCategory0;
       字符串poolCategory1;
       字符串poolCategory2;

        poolCategory0 =小";
        poolCategory1 ="Medium";
        poolCategory2 =大";
       如果(类别< 500000)
        {
            lblCategory.Text = poolCategory0;
        }
       否则，如果(类别> = 500000和类别< 1500000)
        {

 public string categoryName(double category)
    {
        string poolCategory0;
        string poolCategory1;
        string poolCategory2;

        poolCategory0 = "Small";
        poolCategory1 = "Medium";
        poolCategory2 = "Large";
        if (category < 500000)
        {
            lblCategory.Text = poolCategory0;
        }
        else if (category >= 500000 & category < 1500000)
        {

            lblCategory.Text = poolCategory1;
        }
       其他
            {
                lblCategory.Text = poolCategory2;
            }

            lblCategory.Text = poolCategory1;
        }
        else 
            {
                lblCategory.Text= poolCategory2;
            }

对onclick进行编码，其中categoryName称为

code onclick where categoryName called

请帮助

推荐答案

嗨Kazzmagic，

Hi Kazzmagic,

问题可能出在您的方法categoryName声明它返回一个字符串值而没有.可以从更改签名 公共字符串categoryName(double category)到 public void categoryName(double category) 或在方法末尾返回一个字符串.

The problem probably is that your method categoryName declares that it returns a string value and it does not. Either change the signature from public string categoryName(double category) to public void categoryName(double category) or return a string at the end of the method.

Rgds MM

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