我如何...请帮我删除子串错误 [英] How do I...Please help me to remove the Substring Error

问题描述

这是我的代码。并且'对象的错误不包含SubString中的子串的定义'。请回答我



if（phones_done.IndexOf（"〜" + rs [" PhoneID"] +"〜"）+ 1 == 0）

{



phone_string + =" （" + rs [" number]]。子串（0,3）+"）" + rs [" number"] .SubString（3,3）+" - " ;;

phone_string + = rs [" number"]。子串（6）+" （" + rs [" description"] +"）" + Environment.NewLine;



phones_done + ="〜" + rs [" PhoneID"] +"〜";

}

Here Is my Code. And error of 'object doesnot contain a defination of substring' in SubString. please answer me please

if (phones_done.IndexOf("~" + rs["PhoneID"] + "~") + 1 == 0)
{

phone_string += " (" + rs["number"].Substring(0, 3) + ") " + rs["number"].SubString(3, 3) + "-";
phone_string += rs["number"].Substring(6) + " (" + rs["description"] + ")" + Environment.NewLine;

phones_done += "~" + rs["PhoneID"] + "~";
}

推荐答案

Substring函数仅适用于字符串 - 和（假设rs是某些描述的RecordSet）它将返回对象。试试这个：

The Substring function only works on strings - and (assuming rs is a RecordSet of some description) it will return objects. Try this:

phone_string += " (" + rs["number"].ToString().Substring(0, 3) + ") " + rs["number"].ToString().SubString(3, 3) + "-";

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