Question

应同时对html表格进行验证,同时对双方都进行reg。

客户方面:向用户发出信息而无需询问服务器

服务器方面:确认所有物品都属于罚款,在小孩残疾或试图冲破表格的人情况下安全检查。

我的问题是:我通常看到服务器的侧面reg和客户方reg之间出现一些不相同的错误。

C#中的I m, 您是否认为Reex应当备份,服务器应当把自己的reg放在客户一边?

我想避免:

C# -> public const string AlphanumericField = @"[^A-Za-z0-9_]";
JS -> var alpahField = "[^A-Za-z_-]";

I want to avoid both declaration for the same thing.

Answer 1

For the regualtare expression I always make use of RegularExpressionValidator available in the asp.net

查询:,以更详细地介绍正式表述有效者的情况。

Answer 2

If possible in your app, you could do an AJAX call for your client side validation, which would allow you to have that RegEx in one place, and easily testable. You may take a very minor performance hit going to the server everytime you need to check this, but the maintainability is worth it in many cases.

Answer 3

你们可以要求C#使用登记客户笔记栏块宣布这种 variable印变量。

Dim cstext2 As New StringBuilder()
            cstext2.Append("<script type=""text/javascript"">")
            cstext2.Append("var alpahField = "" + AlphanumericField  +"";")
            cstext2.Append("script>")
            RegisterClientScriptBlock(csname2, cstext2.ToString())

Answer 4

You can use the exact same regex (as seen by the regex engine), on both the client and server side but you will need to declare them separately, because C# and JavaScript use different escaping schemes. Take for example a regex which validates a double quoted string which may contain any character escaped with a backslash. Here is the native regex needed:

Native regex:
^"[^"\]*(\.[^"\]*)*"$

Javascript regex in regex literal:
/^"[^"\]*(\.[^"\]*)*"$/

C# regex in verbatim literal string
@"^""[^""\]*(\.[^""\]*)*""$"

用Javascript字面的辛塔克斯,是唯一的果园(需要逃脱)是前方的冲锋。在C#逐字字字字字面载体中储存的ex,唯一的 met子是两条双句子,“替罪羊”,把两条双句放在一行。

The RegexBuddy Solution

实现您的目标(每个验证规则只维持一个总管)的一个良好办法是利用 RegexBuddy (RB)。您可以把所有经过充分测试和破碎的鉴定证书(加上每个校区的适当测试数据)存放在一个单一的图书馆档案中。然后,简单地利用RB的内在出口特征生成(明显越出)C#和Javascript regex snippets。

如果你对制定准确和高效的监管制度感到严重,那么你就应当真正利用这一工具,以检验每个监管部门正确处理所有对冲案件(配对和非配对)。

The RegexBuddy Solution

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