转换为ToDouble时出错 [英] Error while converting to ToDouble

问题描述

大家好



以下是我的代码

Hi all

Below is my code

double l = Convert.ToDouble(lbll.Content);

以下是我得到的错误

below is the error i am getting

Input string was not in a correct format.

请告诉我这里的问题

Please tell me the problem here

推荐答案

检查lbll.Content的值，它不是有效的double。您应该使用 Double.TryParse方法 [ ^ ]。如果转换成功与否则返回，将默认值传递给参数并且不抛出异常。

Check the value of lbll.Content, it is not a valid double. You should use Double.TryParse Method[^] instead. It returns if conversion was successful or not , passes default value to your parameter and does not throw exception.

lbll.Content的值不能转换为double。



首先尝试解析如下：

The value of the lbll.Content can't converted into double.

Try a parse first as follows:

double value;
if(!Double.TryParse(lbll.Content, out value))
{
    //not a double value
}

else
{
    //you can use your double value here
}

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