用于验证数字（6,2）的正则表达式

Question

I am using SQL Server 2008. I have a numeric column for numeric(6,2). For which I have a regular expression for 6 digit number with optional 2 decimal digit:

[RegularExpression(@"^\d{0,4}(\.\d{0,2})?$", ErrorMessage = "Must be number with maximum 2 decimal places & maximum 7 characters.")]
public decimal? PALLET_W { get; set; }

This allow all the below values:

1234.34, 345.45, 45.5, 4.5, 1234

But, It does not allow these values: 123456, 12364.7

My main requirement is maximum 7 characters with optional 2 decimal digit.

So, I need to allow these values too: 123456, 12364.7

Is there any way to do so?

Answer 1

This should work for you

^\d{1,6}(\.\d{1,2})?$

You can test it here .

Edit

For that (total 6 digits max), use this

^\d{1,4}((\d{1,2})|(\d\.\d)|(\.\d{1,2}))?$

Check here .