使用自定义验证器的ASP.Net字数统计 [英] ASP.Net word count with a custom validator

问题描述

我正在研究的ASP.Net 2.0项目的要求将特定字段的最大字数限制为10个字（不是字符）。我目前正在使用带有以下ServerValidate方法的CustomValidator控件：

A requirement for an ASP.Net 2.0 project I'm working on limits a certain field to a max of 10 words (not characters). I'm currently using a CustomValidator control with the following ServerValidate method:

Protected Sub TenWordsTextBoxValidator_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs) Handles TenWordsTextBoxValidator.ServerValidate
    '' 10 words
    args.IsValid = args.Value.Split(" ").Length <= 10
End Sub

有人有没有更全面/准确的字数统计方法？

Does anyone have a more thorough/accurate method of getting a word count?

推荐答案

此正则表达式的效果很好：

This regex seems to be working great:

"^(\b\S+\b\s*){0,10}$"

更新：上面有一些缺陷，所以我最终使用了此RegEx：

Update: the above had a few flaws so I ended up using this RegEx:

[\s\x21-\x2F\x3A-\x40\x5B-\x60\x7B-\xBF]+

我 split（）该正则表达式上的字符串，并使用 length 结果数组以获取正确的工作d。

I split() the string on that regex and use the length of the resulting array to get the correct word count.

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