尝试在C#中捕获以除以零错误 [英] Try catch in c# for divide by zero error

问题描述

如何在c#中执行try catch，以便在try catch中执行sql查询

How to do a try catch in c# so that I execute a sql query inside the try catch

有时count的值为0，并且抛出一个错误除以零错误.因此，当它引发被零除的错误时，我必须执行sql语句以删除该语句，并且循环必须继续获取下一条记录的值.我该怎么做.

Sometimes the value of count is 0, and it throws a error divide by zero error. So when it throws the divide by zero error I have to execute a sql statement to delete that statement and and the loop has to continue to get the value of the next record. How can i do it.

double value = (read * 100 / count);

推荐答案

当您可以简单地测试 count 的值是否等于0时，为什么要进行try/catch:

Why doing a try/catch when you can simply test whether the value of count is equal to 0:

if (count != 0)
{ 
    // perform the division only if count is different than 0,
    // otherwise we know that it will throw an exception 
    // so why even attempting it?
    double value = (read * 100 / count);
}

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