This is in c#
I have 2 textboxes for firstname and lastname. I wish to split a name string which into the appropriate textbox which it belongs to, but the problem is there are many combinations of what the name string can be. It can either be, "Mr John Smith", or "Mr Smith", for these the result i get is ok, the problem im having now is when splitting a string such as "Mrs and Mrs Smith" The split does not work as planned as i get "Mr" in the first textbox and i get "and Mrs Smith" in the second textbox.
Here is my function below, can anyone help as I will like to have the firstname textbox with the firsy name if there is one and the lastname textbox with value of the lastname if the string is something like "Mr and Mrs Smith" or "Mr & Mrs John Smith"
string name = "Mr and Mrs Smith";
string[] titles = new string[] {"Mr", "Miss", "Mrs", "Ms", "Master", "Mr and Mrs",
"Mr & Mrs", "Lady", "Lord", "Prof", "Proffessor", "Ma'am", "Madame"};
foreach (string title in titles)
{
if (name.StartsWith(title) && !name.Equals(title, StringComparison.CurrentCultureIgnoreCase))
{
var titleLength = title.Length;
var titlelessName = name.Substring(titleLength + 1);
var spaceIndex = titlelessName.IndexOf(' ');
if (spaceIndex > -1 && spaceIndex >= 0)
{
var firstName = titlelessName.Substring(0, spaceIndex);
var lastName = titlelessName.Substring(spaceIndex + 1);
txtFname.Text = firstName;
txtLname.Text = lastName;
}
}
else if (!name.StartsWith(title) && name.Contains(' '))
{
var firstName = name.Substring(0, name.IndexOf(' '));
var lastName = name.Substring(name.IndexOf(' '));
txtFname.Text = firstName;
txtLname.Text = lastName;
}
}
You are trying to handle all instances of your input as something which comes in the form of {firstname} {lastname}. Now the reality is that you accept a whole lot of input that comes in differing shapes and sizes. So you could either bash your head bloody trying to force your input to behave like you want it, or you can adapt and change the solution to fit the input.
You will never be able to figure out all possible combinations of first name, last name and title. What about people who enter Duke Leopold von Haussknauf, Phd?
I know this isn't the answer you're looking for, but you should consider changing the solution in some way. Maybe present it in a single box instead, or make people input title, first and last name separately to begin with?
Your problem is that the logic of you loop isn't correct.
You first check if the title matches, if it doesn't you split on the space in the name. The problem here is that you shouldn't do that until you've checked every title.
What's worse, is that if the title in you name isn't the last title in your array, then the next cycle through the array will end up doing the second condition in your loop and overwrite the correct behavior. You need to exit the loop once you've found a matching title!
So, something like this (untested code):
string name = "Mr and Mrs Smith";
string[] titles = new string[] {"Mr", "Miss", "Mrs", "Ms", "Master", "Mr and Mrs", "Mr & Mrs", "Lady", "Lord", "Prof", "Proffessor", "Ma'am", "Madame"};
var sortedTitles = from s in titles
orderby s.Length descending
select s;
bool foundTitle = false;
foreach (string title in sortedTitles)
{
if (name.StartsWith(title) && !name.Equals(title, StringComparison.CurrentCultureIgnoreCase))
{
var titleLength = title.Length;
var titlelessName = name.Substring(titleLength + 1);
var spaceIndex = titlelessName.IndexOf(' ');
if (spaceIndex > -1 && spaceIndex >= 0)
{
var firstName = titlelessName.Substring(0, spaceIndex);
var lastName = titlelessName.Substring(spaceIndex + 1);
txtFname.Text = firstName;
txtLname.Text = lastName;
}
foundTitle = true;
break;
}
}
if (!foundTitle && name.Contains(' '))
{
var firstName = name.Substring(0, name.IndexOf(' '));
var lastName = name.Substring(name.IndexOf(' '));
txtFname.Text = firstName;
txtLname.Text = lastName;
}
And, of course, this isn't taking into account that your list of titles is far from exhaustive and doesn't include a lot of varieties that you might encounter. What about Mr. and Mrs. Smith?
i Feel something inapproprite in your assumption
for ex : Mr Smith show Mr as First name which incrrect
i suggest using alternative way to input your data such as dropdown for mr, mrs ... etc
think more about your requirments
Related
I have a string with 3 names(example: string name="Hunter Georgie Martin"). I have 3 tasks for that string:
remove the first name
remove the second name
remove the third name
They don't depend on each other, meaning when deleting first name for the first task it shouldn't also be removed when doing the other tasks.
I completed the first task:
string name = "Hunter Gregorie Martin";//example
string str = name.Substring(name.IndexOf(' ')+1);
Console.WriteLine(str);
The output is what it should be: Gregorie Martin
The problem is that I can't think of a way to finish the other tasks in a similar way.
This simple function can be used for all three of your examples by utilizing System.Linq.
public string RemoveNameIndexFromString(string name, int indexToRemove, char separator = ' ')
{
// Split the original string by the separator character
string[] names = name.Split(separator);
// Check if the index to remove is valid
if (indexToRemove < 0 || indexToRemove >= names.Length)
return "Invalid index";
// Create a new array with the name at the specified index removed
var newNames = names.Where((val, idx) => idx != indexToRemove).ToArray();
// Join the remaining names back together using the separator character
return string.Join(separator.ToString(), newNames);
}
Usage
Console.WriteLine(RemoveNameIndexFromString("Hunter Gregorie Martin", 0));
Console.WriteLine(RemoveNameIndexFromString("Hunter Gregorie Martin", 1));
Console.WriteLine(RemoveNameIndexFromString("Hunter Gregorie Martin", 2));
Output
Gregorie Martin
Hunter Martin
Hunter Gregorie
Very similar to what GrumpyCrouton (great name!) did, but with a List instead:
public string RemoveNameIndexFromString(string name, int indexToRemove)
{
List<String> names = new List<String>(name.Split(' '));
if (indexToRemove >=0 && indexToRemove < names.Count) {
names.RemoveAt(indexToRemove);
}
return String.Join(" ", names);
}
Riff on GrumpyCrouton's answer using Take and Skip (taking all items before desired index and concatenating with items after the index) instead of Where (which skips the item). Also packing everything into single statements using IIFE as many people are concerned about number of statements (vs. readability)
string RemoveNameIndexFromString(string v, int idx) =>
((Func<string[], string>)(r =>
String.Join(" ",r.Take(idx).Concat(r.Skip(idx+1)))))(v.Split());
Less crazy version without IIFE would need to split twice but more readable:
string RemoveNameIndexFromString(string v, int idx) =>
String.Join(" ",v.Split().Take(idx).Concat(v.Split().Skip(idx+1)));
Assuming that you do not want not use fancy C# features and functions, you can do it with Substring and IndexOf alone by applying IndexOf again to the middle name + last name string.
string name = "Hunter Gregorie Martin";
Console.WriteLine("Name = " + name);
int index = name.IndexOf(' ');
string firstName = name.Substring(0, index);
string middleAndLastName = name.Substring(index + 1);
index = middleAndLastName.IndexOf(' ');
string middleName = middleAndLastName.Substring(0, index);
string lastName = middleAndLastName.Substring(index + 1);
Console.WriteLine("First name removed = " + middleAndLastName);
Console.WriteLine("Middle name removed = " + firstName + " " + lastName);
Console.WriteLine("Last name removed = " + firstName + " " + middleName);
prints
Name = Hunter Gregorie Martin
First name removed = Gregorie Martin
Middle name removed = Hunter Martin
Last name removed = Hunter Gregorie
Just be creative!
Please, can you help me please. I have complete select adress from DB but this adress contains adress and house number but i need separately adress and house number.
I created two list for this distribution.
while (reader_org.Read())
{
string s = reader_org.GetString(0);
string ulice, cp, oc;
char mezera = ' ';
if (s.Contains(mezera))
{
Match m = Regex.Match(s, #"(\d+)");
string numStr = m.Groups[0].Value;
if (numStr.Length > 0)
{
s = s.Replace(numStr, "").Trim();
int number = Convert.ToInt32(numStr);
}
Match l = Regex.Match(s, #"(\d+)");
string numStr2 = l.Groups[0].Value;
if (numStr2.Length > 0)
{
s = s.Replace(numStr2, "").Trim();
int number = Convert.ToInt32(numStr2);
}
if (s.Contains('/'))
s = s.Replace('/', ' ').Trim();
MessageBox.Show("Adresa: " + s);
MessageBox.Show("CP:" + numStr);
MessageBox.Show("OC:" + numStr2);
}
else
{
Definitions.Ulice.Add(s);
}
}
You might find the street name consists of multiple words, or the number appears before the street name. Also potentially some houses might not have a number. Here's a way of dealing with all that.
//extract the first number found in the address string, wherever that number is.
Match m = Regex.Match(address, #"((\d+)/?(\d+))");
string numStr = m.Groups[0].Value;
string streetName = address.Replace(numStr, "").Trim();
//if a number was found then convert it to numeric
//also remove it from the address string, so now the address string only
//contains the street name
if (numStr.Length > 0)
{
string streetName = address.Replace(numStr, "").Trim();
if (numStr.Contains('/'))
{
int num1 = Convert.ToInt32(m.Groups[2].Value);
int num2 = Convert.ToInt32(m.Groups[3].Value);
}
else
{
int number = Convert.ToInt32(numStr);
}
}
Use .Split on your string that results. Then you can index into the result and get the parts of your string.
var parts = s.Split(' ');
// you can get parts[0] etc to access each part;
using (SqlDataReader reader_org = select_org.ExecuteReader())
{
while (reader_org.Read())
{
string s = reader_org.GetString(0); // this return me for example Karlínkova 514 but i need separately adress (karlínkova) and house number (514) with help index of or better functions. But now i dont know how can i make it.
var values = s.Split(' ');
var address = values.Count > 0 ? values[0]: null;
var number = values.Count > 1 ? int.Parse(values[1]) : 0;
//Do what ever you want with address and number here...
}
Here is a way to split it the address into House Number and Address without regex and only using the functions of the String class.
var fullAddress = "1111 Awesome Point Way NE, WA 98122";
var index = fullAddress.IndexOf(" "); //Gets the first index of space
var houseNumber = fullAddress.Remove(index);
var address = fullAddress.Remove(0, (index + 1));
Console.WriteLine(houseNumber);
Console.WriteLine(address);
Output: 1111
Output: Awesome Point Way NE, WA 98122
I am looking for how to get rid off below exception "Index was outside the bounds of the array." for the below case 2
Aim: To separate the first name and last name (last name may be null some times)
Case 1:
Name: John Melwick
I can be able to resolve the first case with my code
Case 2:
Name: Kennedy
In case two I am getting an error Index was out of range at LastName in my code
Case 3:
Name: Rudolph Nick Bother
In case 3, I can be able to get:
FirstName: Rudolph and LastName: Nick (whereas I need Nick Bother together to be lastname)
Very much thankful, if anybody help me.
Here is the code:
Match Names = Regex.Match(item[2], #"(((?<=Name:(\s)))(.{0,60})|((?<=Name:))(.{0,60}))", RegexOptions.IgnoreCase);
if (Names.Success)
{
FirstName = Names.ToString().Trim().Split(' ')[0];
LastName = Names.ToString().Trim().Split(' ')[1];
}
Split the string with a limit on the number of substrings to return. This will keep anything after the first space together as the last name:
string[] names = Names.ToString().Trim().Split(new char[]{' '}, 2);
Then check the length of the array to handle the case of only the lastname:
if (names.Length == 1) {
FirstName = "";
LastName = names[0];
} else {
FirstName = names[0];
LastName = names[1];
}
Use
String.indexof(" ")
And
string.lastindexof(" ")
if they match there is one space. If they dont there is 2. I believe it returns 0 if there are no matches. Hope this helps
edit
if you use the indexes you can do a substring using them and get the last name as you are wanting
Something like this works:
string name = "Mary Kay Jones" ;
Regex rxName = new Regex( #"^\s*(?<givenName>[^\s]*)(\s+(?<surname>.*))?\s*$") ;
Match m = rxName.Match( name ) ;
string givenName = m.Success ? m.Groups[ "givenName" ].Value : "" ;
string surname = m.Success ? m.Groups[ "surname" ].Value : "" ;
But it is an extremely erroneous assumption that a given name consists only of a single word. I can think of many examples to the contrary, such as (but by no means limited to):
Billy Ray (as in the earlier example of "Billy Ray Cyrus")
Mary Kay
Mary Beth
And there's no real way to know without asking the person in question. Does "Mary Beth Jones" consist a given, middle and surname or does consist of a given name, Mary Beth and a surnname "Jones".
If you are considering English-speaking cultures, the usual convention is that one may have as many given names (forenames) followed by a family name (surname). Prince Charles, heir to the British Crown, for instance carries the rather heavy-duty Charles Phillip Arthur George Mountbatten-Windsor. Strictly speaking, he has no surname. Mountbatten-Windsor is used when one is required and his full name is just "Charles Phillip Arthur George".
string fullName = "John Doe";
var names = fullName.Split(' ');
string firstName = names[0];
string lastName = names[1];
The reason you're getting an error is because you're not checking for the length of names.
names.Length == 0 //will not happen, even for empty string
names.Length == 1 //only first name provided (or blank)
names.Length == 2 //first and last names provided
names.Length > 2 //first item is the first name. last item is the last name. Everything else are middle names
See this answer for more information.
Modify the code to be something like:
Match Names = Regex.Match(item[2], #"(((?<=Name:(\s)))(.{0,60})|((?<=Name:))(.{0,60}))", RegexOptions.IgnoreCase);
if (Names.Success)
{
String[] nameParts = Names.ToString().Trim().Split(' ');
int count = 0;
foreach (String part in nameParts) {
if(count == 0) {
FirstName = part;
count++;
} else {
LastName += part + " ";
}
}
}
Here is the most generalized solution for this issue.
public class NameWrapper
{
public string FirstName { get; set; }
public string LastName { get; set; }
public NameWrapper()
{
this.FirstName = "";
this.LastName = "";
}
}
public static NameWrapper SplitName(string inputStr, char splitChar)
{
NameWrapper w = new NameWrapper();
string[] strArray = inputStr.Trim().Split(splitChar);
if (string.IsNullOrEmpty(inputStr)){
return w;
}
for (int i = 0; i < strArray.Length; i++)
{
if (i == 0)
{
w.FirstName = strArray[i];
}
else
{
w.LastName += strArray[i] + " ";
}
}
w.LastName = w.LastName.Trim();
return w;
}
I'm working on a method which takes a string and separates it into numerous items and then stores it inside of an array. I then perform a check to see if the array contains more than two items and if it does I assign specific items within an array to corresponding strings i.e. assign first item to forename, last item to surname and all other items to middle-name.
My issue relates to retrieving each of the items within the array which are not the first or last items and then assigning them in the correct order to a string. Below you can see that I have attempted to grab each item within the name array and assign the result to a list which can then be converted into a single string, but with no luck. What I am looking for is a solution to this problem.
public string SplitName(string text)
{
string forename;
string middlename;
string surname;
var name = text.Split(' ');
if (name != null)
{
if (name.Length > 2)
{
forename = name[0];
surname = name[name.Length - 1];
List<string> temp = new List<string>();
for (int i = 1; i < name.Length - 1; i++)
{
// Assign each item to middlename
}
text = string.Format("{0} {1} {2}", forename, middlename, surname);
}
}
else
{
text = "INVALID";
}
return text;
}
Use String.Join (http://msdn.microsoft.com/en-us/library/tk0xe5h0.aspx)
public string SplitName(string text)
{
string forename;
string middlename;
string surname;
var name = text.Split(' ');
if (name != null)
{
if (name.Length > 2)
{
forename = name[0];
surname = name[name.Length - 1];
middlename = string.Join(" ", name, 1, name.Length - 2);
text = string.Format("{0} {1} {2}", forename, middlename, surname);
}
}
else
{
text = "INVALID";
}
return text;
}
Change the first parameter of join (" ") if you want them to be joined using a different string. Currently a name "Bob Jack Willis Mills" will create a middlename "Jack Willis". If you want "Jack, Willis" use ", " as the separator.
If all you want to do is keep the first and last tokens separately and treat everything else as the middle name it would be much simpler to use a regular expression:
var regex = new Regex(#"^(\S+)\s+(?:(.*?)(?:\s+)?)(\S+)$");
var match = regex.Match("foo bar baz");
if (match.Success) {
var firstName = match.Groups[1].Value;
var middleName = match.Groups[2].Value;
var lastName = match.Groups[3].Value;
}
else {
// there were no spaces, i.e. just one token
}
The regular expression matches two runs of non-space characters at the ends with \S+. It optionally matches anything else that happens to be between them with the pattern (?:(.*?)(?:\s+)?), where the important part is (.*?) (match anything, non-greedy in order to not munch up any spaces before the last name) and the rest is mostly red tape (non-capturing groups, optional spaces before the lastname).
Try with this:
public string SplitName(string text)
{
string forename;
string middlename;
string surname;
var name = text.Split(' ');
if (name != null)
{
if (name.Length > 2)
{
forename = name[0];
surname = name[name.Length - 1];
middlename = string.Join(" ", name.Skip(1).Take(name.Length - 2));
text = string.Format("{0} {1} {2}", forename, middlename, surname);
}
}
else
{
text = "INVALID";
}
return text;
}
But this return exactly the same string.
First, you need to initialize the string variable, then you can just append all "middle" items to it.
public string SplitName(string text)
{
string forename = string.Empty;
string middlename = string.Empty;
string surname = string.Empty;
var name = text.Split(' ');
if (name != null)
{
if (name.Length > 2)
{
forename = name[0];
surname = name[name.Length - 1];
List<string> temp = new List<string>();
for (int i = 1; i < name.Length - 1; i++)
{
middlename += name[i];
}
text = string.Format("{0} {1} {2}", forename, middlename, surname);
}
}
else
{
text = "INVALID";
}
return text;
}
This will add all middlenames to middlename separated with space and trim last space
for (int i = 1; i < name.Length - 1; i++)
{
middlename+=name[i]+" ";
}
middlename = middlename.Trim(); // just for sure
If you need something else please specify your question
if your name is
aa bb cc dd ee
midlename will be
bb cc dd
I want to output a string that welcomes a user to the application. I have the user's first, middle and last name. I would like to write the user's full name, i.e. "Hello {0} {1} {2}" with first, middle and last being the parameters. However, If the middle name is empty, I don't want two spaces between the first and the last name, but rather only one space. I can obviously do it with an "if", but is there a more elegant way to achieve this?
Thanks
string.Format("{0} {1} {2}", first, middle, last).Replace(" "," ")
It might be worthwhile to make a Name class that has a Full property that takes care of that logic (i.e. will print "John Smith" if there is no middle name or "John A. Smith" if there is).
Then your code would be:
var name = new Name(first, middle, last);
var message = string.Format("Hello {0}", name.Full);
You could also consider adding LastFirstMiddle property (to get a "Smith, John A." formatted string) and any other properties that would make sense with the Name class.
"Hello {0} {1}{3}{2}"
where
{3} = param1.IsNullOrEmpty() ? "" : " "
One way to achieve this would be to put the space into the parameter string. For example (only first and last name as an example)
Console.WriteLine("Hello {0}{1}{2}",
firstName,
String.IsNullOrEmpty(firstName) ? String.Empty : " ",
lastName);
var hello =
(from name in new[] { "Hello", firstName, middleName, lastName }
where !string.IsNullOrEmpty(name))
.Aggregate((xs, x) => xs + " " + x);
or
var hello = string.Join(" ",
(from name in new[] { "Hello", firstName, middleName, lastName }
where !string.IsNullOrEmpty(name))
.ToArray());
I have used this method in my projects. and it helps alot.
public string LogicFullName(string fName)
{
string logicName = String.Empty;
string[] splitFullName = fName.Trim().Split(' ');
for (int i = 0; i < splitFullName.Length; i++)
{
if (logicName == String.Empty && i == 0)
{
logicName = splitFullName[i].Trim();
}
else
{
if (splitFullName[i] != String.Empty)
logicName = logicName + " " + splitFullName[i].Trim();
}
}
return logicName;
}