If Condition for Both Integer and float

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Hello All,

Here I have one problem my text box allowed only integer and float value. if eny thing else will give error message.Please find my code Below.

C#

if (!int.TryParse(x, out value))
                   {
                       ModelState.AddModelError("", "Error");
                   }

Please help me

Thanks in advance...

Posted 16-Jun-15 19:59pm

Member 11771609

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Comments

Sergey Alexandrovich Kryukov 17-Jun-15 2:30am

Your idea is good, it really should be TryParse, only "both integer and float" makes no sense. It should be one certain expected type. Also, you can filter out unwanted characters from input. Sorry, no more detail, because you did not specify what UI library/framework you are using.
—SA

2 solutions

Solution 1

Regex may help you. Try this Regular Expression:

^\((?=.)([+-]?([0-9]*)(\.([0-9]+))?)\)$

--Amy

Posted 16-Jun-15 20:38pm

_Amy

Comments

Kenneth Haugland 17-Jun-15 3:17am

Should be careful with this, ',' and '.' are both valid as a decimal place depending on the culture on the pc.

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CPallini · Accepted Answer · 2015-06-16T21:05:00

Solution 2

If it should be either a int or a float you could TryParse both and give error only if both fail.

Posted 16-Jun-15 21:05pm

CPallini

v2