Validating Domestic and International Phone numbers

-
Validation of both International and Domestic phone numbers presents it's own special challenge.  I came across a regex that handles this pretty well.

It matches these cases:

+42 555.123.4567
+1-(800)-123-4567
+7 555 1234567
+7(926)1234567
(926) 1234567
+79261234567
926 1234567
9261234567
1234567
123-4567
123-89-01
495 1234567
469 123 45 67
89261234567
8 (926) 1234567
926.123.4567
415-555-1234
650-555-2345
(416)555-3456
202 555 4567
4035555678
1 416 555 9292

While rejecting these:

926 3 4
8 800 600-APPLE

I located it here - would love to take credit but alas did not create it:
http://www.regexr.com/38pvb

And here is the Regex

^\s*(?:\+?(\d{1,3}))?([-. (]*(\d{3})[-. )]*)?((\d{3})[-. ]*(\d{2,4})(?:[-.x ]*(\d+))?)\s*$



Or as a Data Annotation




[RegularExpression(@"^\s*(?:\+?(\d{1,3}))?([-. (]*(\d{3})[-. )]*)?((\d{3})[-. ]*(\d{2,4})(?:[-.x ]*(\d+))?)\s*$",ErrorMessage ="Please match a valid international or domestic phone format")]
      







































Comments








Post a Comment
























Popular posts from this blog









Grouping with Data Entities






-















I am really loving the data entity in my new projects but have come across a couple of issues already. Tonight I learned about using a field that is not a part of your database and not in the entity but is a consolidation field from a group.  Once I found some good samples it worked incredibly well and I had a little summary grid on the page in just a couple of minutes.  So here is what I did    using (myEntityName context = new myEntityName())       {  //First I declared a couple of variables because I was looking at data between specific dates             DateTime startdate = DateTime.Parse("2014-02-01");              DateTime enddate = DateTime.Parse("2014-02-01");           var dbRecords = (from c in context.myTableName                            where (c.MemberStartDate >= startdate && c.MemberStart...








Read more










Localizer in Controller






-















Localizer in Controller Using using Microsoft.Extensions. Localization; Includes private readonly IStringLocalizer< AppAccessController>  _localizer; Resource file must be in a Controller Folder in Resources Method example public Dictionary<string,string> GetRoleList(string appName, bool includeX) { 	 //Code here 	 return allItems.ToDictionary<string, string, string>(i => i, i =>  _localizer[i] ); }








Read more










Sticky Footer made simple






-















CSS Footers are simple but people tend to overthink them.  Here is how it works   You have two pieces   A container that all your other stuff is in  A footer that you want to always stay at the bottom of the page   In Blazor I put this container on my content pages and not my host page because I didn't want my left hand nav to be involved   <div class="container">   All my content   </div>  <footer>  Centered footer content  </footer>   And the CSS   .container {      width:100%;      padding: 0 15px;  }  footer {      font-size: 12px; (you could also use a vw value here)      padding-top:20px;      background-color: #xxx;      color: #fff;      margin: auto;      height: 60px;      width: 100%;      position: sticky; //absolute;      bottom: 0;      text-align: center;  }








Read more