如何处理此错误“价值太大或太小......”？ [英] how can I handle this error "Value was either too large or too small.."?

问题描述

当用户在文本框或gridview单元格等数据输入控件中输入较大值时，如何处理此错误？

How can I handle this error when user enter a large value in data entry controls like textbox or gridview cell?

推荐答案

使用TryParse并报告问题。

所有数字类型都有TryParse方法：int，int64，double，float，...

它们都只返回一个值，只要它有效，并且一个bool说它是否有效。如果失败，请将其报告给您的用户并让他输入有效的号码...

Use TryParse and report a problem.
There are TryParse methods for all numeric types: int, int64, double, float, ...
And they all return a value only if it was valid, and a bool to say if it worked or not. If it fails, report that back to your user and get him to enter a valid number...

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