how to add a phone number in us format using mask for .net maui?

akmal husain

string temp = string.Empty;
// int i = value.Length;
if (value.Length == 3 || value.Length == 7)
{
    if (temp.Length == 0)
    {
        temp = value;
    }
    temp += "-";

}
else
{
    temp = value;
}

((Entry)sender).Text = temp;

2 Replies

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Vishal Joshi3y ago
Hello akmal

You can try regex to mask the US Phone number. please check the below sample code.
```
var data = new string[] {"(123) 556-7890", "123 556 7890", "(123) 556- 7890"};
foreach (var s in data) {
    Console.WriteLine(Regex.Replace(s, @"\d(?!\d{0,3}$)", "X"));
```
Result:

(XXX) XXX-7890
XXX XXX 7890
(XXX) XXX- 7890

Thanks
0

Rajat Jaiswal3y ago

Hi,

You can try string format option like

String.Format("{0:###-####}", Double.Parse(temp))

Or create a property which will return format as shown below

string FormatPhoneNumber (temp) {

var myformatedNumber = new StringBuilder(temp) ;
            myformatedNumber (6, '-');
            myformatedNumber (3, ')');
            myformatedNumber (0, '(');
            return myformatedNumber.ToString();
}