参考如下: https://stackoverflow.com/questions/8321514/input-string-was-not-in-a-correct-format
因为项目需求,需要设置InputFiled的默认值,于是乎就遇到这个报错..在网上查找有不同答案,上述网站就是我所需要的
if (int.Parse(numText.text)>1000) { return; }
之前的代码是这个样子的..
The error means that the string you're trying to parse an integer from doesn't actually contain a valid integer.
It's extremely unlikely that the text boxes will contain a valid integer immediately when the form is created - which is where you're getting the integer values. It would make much more sense to update a
and b
in the button click events (in the same way that you are in the constructor). Also, check out the Int.TryParse
method - it's much easier to use if the string might not actually contain an integer - it doesn't throw an exception so it's easier to recover from.
大神的描述如下..
我们要做的,就是使用它的Int.TryParse方法
更改之后如下:
int result = 0; if (int.TryParse (numText.text, out result)) {
if (int.Parse(numText.text)>1000) { return; }
}
https://www.bilibili.com/video/av11587576 20分50秒左右讲解