Hello,
I have a text field where the user types in a telephone number. When the user is done typing the number and the text field loses its focus I need to take whatever the user typed and format it to a standard format. i.e. ###-###-####
If a user types 1234567890 I need it to change to 123-456-7890. Any ideas on how to do this or examples
Thanks!
Format phone number
Abdul Rehmannn
Object Oriented Programming would have you create a PhoneNumber class...
In the get and set methods of your PhoneNumber object's Number property, you can format the number as you need to see it.
You can also override the built-in method for any class you design in .NET, called "ToString()" to return the Number formatted the way you wish.
Take time to write the class and you get to take it with you...
高?
Since I do not have the 2005 version of VS; how would it be done in VS 2003 with C#
How can I take their phone number and format it Can you provide an example code
Serge Luca
The user will enter in different formats of a phone number. Two ways to do this is to either search the entire string for characters other then numbers, or to check the string and remove certain characters in their predeterimed spot. Here is an event that calls a method which will check to see if the user entered "(###) ###-####" or "#-###-###-####" or "##########" or "###-####". It will then fix it and return the format of "###-###-####". Basically it works by assuming when someone is typing one of the given formats of a phone number it removes a character in the given position. So the number (###) ###-#### the ( ) are always in the position 0 & 4, so it removes whatever character is in that position. Again, it could be better, but at least it will help you when formatting numbers manually.
Event that calls methodprivate void btnPhone_Click(object sender, System.EventArgs e)
{
string x = txtPhone.Text;
txtPhone.Text = Class1.formatPhone(x);
}
Method that checks and returns value
public
static string formatPhone(string x){
double y = 0; if (x.Length <= 8 || x.Length > 15){
MessageBox.Show("Your phone number does not contain the correct " +
"number of digits. Please format number " +
"as ###-###-####","Incorrect Number Format", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return x;}
else{
if (x.StartsWith("1-")){
x = x.Remove(0,1);
x = x.Remove(0,1);
x = x.Remove(3,1);
x = x.Remove(6,1);
}
if (x.Length == 14){
x = x.Remove(0,1);
x = x.Remove(3,1);
x = x.Remove(3,1);
x = x.Remove(6,1);
y = Double.Parse(x);
}
else if (x.Length == 12){
x = x.Remove(3,1);
x = x.Remove(6,1);
y = Double.Parse(x);
}
else if (x.Length == 10){
y = Double.Parse(x);
}
else{
y = Double.Parse(x);
}
x = String.Format("{0:###-###-####}", y);
return x;}
//end else}
//End public static string formatPhone(string x)devmonkey
haha, yes I have heard about that new feature in VS 2005.
My problem is getting it to format the string. This is what I have:
string convert = txtPhone.Text;String.Format("{0:(###) ###-####}", convert);
txtPhone.Text = convert;
but, the numbers never change once the code executes! I know I am probably jacking the format syntax up, but I couldn't find any good examples anywhere.
Thanks!
~zero
match1
Yeah, that's true!
Nevertheless, I think the default stance in most forums is to assume the latest version, unless otherwise directed. Otherwise you end up asking "which version of C#/.net " for almost every question...
Therefore, as an example, if someone asks a question that could be solved using generics, someone else will probably suggestan answer that uses generics - unless the OP stipulates C# version 1 in the question.
I must further point out that the description of this forum says "Issues regarding the C# language and compiler – including things like generics, anonymous methods, etc."
Note the use of the term "generics" in the description - which most certainly implies C# 2!
cinstress
Rongping
If you're using VS2003, well, that's so last year.
itzik
For example, if you have set the mask to something like this:
this.maskedTextBox1.Mask = "(999) 000-0000";
then when you assign the string "1234567890" to the masked text box's text like so:
this.maskedTextBox1.Text = "1234567890";
the text will be displayed as "(123) 456-7890"
Unfortunately, string.Format() won't format strings like that.
MCVapor
Perhaps. I'd be more inclined if I was to write a reusable class, to have one that can demand/enforce a variety of string formats. Otherwise, you have 20 classes you move from project to project, which only differ very slightly from one another.
sunsetandlabrea
Where does is say that this is a .NET 2.0-specific forum This is a C#-forum, actually, and not bound to any particular version of .NET.
Elqueso
This is how to format a string of numbers into a proper phone number format. For example say a user types in the following for a phone number: 1234567890. The following code will take that value and turn it into this: 123-456-7890
string x = txtPhone.Text; double y = Double.Parse(x);txtPhone.Text = String.Format("{0:###-###-####}", y);
FETUS
www.codeproject.com is bound to have an example, but basically, you should do what I said in the first place, you can parse the string yourself and then format it, probably in the event raised when the textbox loses focus. You can use regular expressions for this. If you don't have it, Expresso is a great tool for working with regex, it's on the CP site as well.
SwitchBL8
You want to create a control based on the textbox ( or add an event handler for lose focus in your main code ) and then reformat the string there.
MondeoST24
Exactly! That variety of string formats can be built up over time, as they are needed...
It pays off to have a library of objects at hand for those times the .NET namespaces don't already have them written and ready to use.