[英]Regular expression to validate chars by comma
It should validate something like this: 它应该验证如下内容:
a,b,c,d,1,2,3,w,f,x,-,=,d
Accepted only one char and next is comma. 仅接受一个字符,下一个是逗号。
Bad example: 错误的例子:
adc,1,2,345,flos
I think of thsi: 我认为:
@"([*{1}]+[,{1}])+"
but this not work. 但这行不通。
Try ^[^,](,[^,])*$
. 尝试^[^,](,[^,])*$
。 The structure is as follows: 结构如下:
[^,]
单个非逗号字符: [^,]
(,[^,])*
任意多次逗号后跟非逗号字符: (,[^,])*
If you want to match an empty string as well you should make the whole expression optional: 如果还想匹配一个空字符串,则应使整个表达式为可选:
^([^,](,[^,])*)?$
如果您想char with comma
从允许的char with comma
找到任何组,简单的方法是
(a|b|c|d|1|2|3|w|f|x|\-|\=)\,
It gives you what you want i guess : 它给你你想要的我猜:
bool isMatched = IsValid("adc,1,2,345,flos");
private bool IsValid(string value)
{
return Regex.IsMatch(value, @"^([^,](,[^,])*)?$");
}
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