Trim() Function Not Working Please Help its not trimming the white space.
string samplestring = "172-6573-4955";
string[] array = samplestring .Split('-');
string firstElem = array.First();
string restOfArray = string.Join(" ", array.Skip(1));
array[1] = restOfArray.Trim(); // providing value "6573 4955"
The scenario is I am splitting string and merging 2nd and last index into one but it's merging with white spaces.
Trim() removes whitespace from the front and back of a string, not in the middle. The whitespaces in the middle are being inserted by the " " provided as the parameter to Join() method. You could provide string.empty instead.
Trim is used to remove all leading and trailing white-space. And you want to trim the white space from middle. You may try like this:
string restOfArray = string.Join("", array.Skip(1));
or better:
string restOfArray = string.Join(string.Empty, array.Skip(1));
instead of
string restOfArray = string.Join(" ", array.Skip(1));
Trim is working as expected. Taken from String.Trim Method:
Removes all leading and trailing white-space characters from the
current String object.
The possible solutions for you are :
string restOfArray = string.Join(string.Empty, array.Skip(1));
Or
array[1] = restOfArray.Replace(" ", string.Empty).Trim();
To just split the first n-let from the rest use an additional array or you will end up with spurious data. And join with the correct separator you used in split(-):
string restOfArray = string.Join("-", array.Skip(1));
string[] result = new string[] { firstElem, restOfArray };
You don't need Trim().
You can simplify your code this way:
string[] splitCode(string code)
{
string[] segments;
segments = code.Split('-');
return new string[] { segments.First(), string.Join("-", segments.Skip(1)) };
}
Trim really isn't need here; you can simply split the string and join the parts you want:
string source = "172-6573-4955";
string[] splitter = new string[] {"-"};
string[] result;
result = source.Split(splitter, StringSplitOptions.None);
string final = (result[1] + result[2]);
Console.Write(final);
Result:
65734955
Try this:
string samplestring = "172-6573-4955";
string[] array = samplestring.Split(new char[] {'-'},2);
string result = array[1].Replace("-","");
Also, for your question about randomly putting spaces, can u pls explain "randomly" here.
Related
This question already has answers here:
Text Split with Space
(2 answers)
Closed 5 years ago.
So I have a string input like this:
string pianist = "Johann Sebastian Bach";
How to split those by space so I can access such as:
pianist[0] == "Johann"
pianist[1] == "Sebastian"
pianist[2] == "Bach"
I tried
string test = pianist.Split(' ');
but its not working.
you can try this one;
string[] pianist = "Johann Sebastian Bach".Split(' ');
you will get as expected.
string test = pianist.Split(' '); // Doesn't work Why?
Because the .Split() method of String class Splits a string into substrings that are based on the characters in an array. you cannot assign them to a string, you should use an array instead.
What to do to make your code work?
Change the type of to string[] to hold the result of split:
string[] splitResult = pianist.Split(' ');
The problem is that your expectation is wrong.
so I can access such as pianist[0] == "Johann"
since pianist is your original string, trying to access it with an index will result in chars at this position in the string. (since a string is represented by a char[]).
If you look at the documentation of the method Split() you will see that it returns a string[] and not a string as you tried. You need first to catch this return value in an extra variable, then you can access it the way you planed:
string pianist = "Johann Sebastian Bach";
string [] returnedArray = pianist.Split(' ');
string johann = returnedArray[0];
string sabastian = returnedArray[1];
string bach = returnedArray[2];
You don't need to pass any params of your split method. check interested MSDN post:
If the separator argument is null or contains
no characters, the method treats white-space characters as the
delimiters. White-space characters are defined by the Unicode
standard they return true if they are passed to the Char.IsWhiteSpace
method.
String.Split Method
string pianist = "Johann Sebastian Bach";
var pianistArray = pianist.Split();
Result:
pianistArray[0] == "Johann"
pianistArray[1] == "Sebastian"
pianistArray[2] == "Bach
You are trying to save a string-array under a string variable. Try this:
string test = "Johann Sebastian Bach";
string[] separated = test.Split(' ');
foreach(string sub in separated)
{
Console.WriteLine(sub);
}
produces
Johann
Sebastian
Bach
Split function must specify the value to split. your situation is a space " ", not "".
here is the answer
string pianist = "Johann Sebastian Bach";
string[] asd = pianist.Split(" ");
It should see below looks like you have not given the space correctly
var res = pianist.Split(new[] {' '});
string test = pianist.Split(' ');
This won't work as the result from Split is an array. Do this instead:
string[] test = pianist.Split(' ');
No you can access the words like you already tried to:
test[0]
test[1]
...
Try this:
string pianist = "Johann Sebastian Bach";
var result = pianist.Split(' ');
Or:
string pianist = "Johann Sebastian Bach";
string[] result = pianist.Split(' ');
I wonder if it's possible to use split to divide a string with several parts that are separated with a comma, like this:
10,12-JUL-16,11,0
I just want the Second part, the 12-JUL-16 of string and not the rest?
Yes:
var result = str.Split(',')[1];
OR:
var result = str.Split(',').Skip(1).FirstOrDefault();
OR (Better performance - takes only first three portions of the split):
var result = str.Split(new []{ ',' }, 3).Skip(1).FirstOrDefault();
Use LINQ's Skip() and First() or FirstOrDefault() if you are not sure there is a second item:
string s = "10,12-JUL-16,11,0";
string second = s.Split(',').Skip(1).First();
Or if you are absolutely sure there is a second item, you could use the array accessor:
string second = s.Split(',')[1];
Yes, you can:
string[] parts = str.Split(',');
Then your second part is in parts[1].
or:
string secondPart = str.Split(',')[1];
or with Linq:
string secondPart = str.Split(',').Skip(1).FirstOrDefault();
if (secondPart != null)
{
...
}
else
{
...
}
Also you can use not only one symbol for string splitting, i.e.:
string secondPart = str.Split(new[] {',', '.', ';'})[1];
You could use String.Split, it has an overloaded method which accepts max no of splits.
var input = "10,12-JUL-16,11,0"; // input string.
input.Split(new char[]{','},3)[1]
Check the Demo
Here's a way though the rest have already mentioned it.
string input = "10,12-JUL-16,11,0";
string[] parts = input.Split(',');
Console.WriteLine(parts[1]);
Output:
12-JUL-16
Demo
I want to split a string into 2 strings,
my string looks like:
HAMAN*3 whitespaces*409991
I want to have two strings the first with 'HAMAN' and the second should contain '409991'
PROBLEM: My second string has '09991' instead of '409991' after implementing this code:
string str = "HAMAN 409991 ";
string[] result = Regex.Split(str, #"\s4");
foreach (var item in result)
{
MessageBox.Show(item.ToString());
}
CURRENT SOLUTION with PROBLEM:
Split my original string when I find whitespace followed by the number 4. The character '4' is missing in the second string.
PREFERED SOLUTION:
To split when I find 3 whitespaces followed by the digit 4. And have '4' mentioned in my second string.
Try this
string[] result = Regex.Split(str, #"\s{3,}(?=4)");
Here is the Demo
Positive lookahead is your friend:
Regex.Split(str, #"\s+(?=4)");
Or you could not use Regex:
var str = "HAMAN 409991 ";
var result = str.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
EXAMPLE
Alternative if you need it to start with SPACESPACESPACE4:
var str = new[] {
"HAMAN 409991 ",
"HAMAN 409991",
"HAMAN 509991"
};
foreach (var s in str)
{
var result = s.Trim()
.Split(new[] {" "}, StringSplitOptions.RemoveEmptyEntries)
.Select(a => a.Trim())
.ToList();
if (result.Count != 2 || !result[1].StartsWith("4"))
continue;
Console.WriteLine("{0}, {1}", result[0], result[1]);
}
That's because you're splitting including the 4. If you want to split by three-consecutive-spaces then you should specify exactly that:
string[] result = Regex.Split(str, #"\s{3}");
I have a string with the following text:
:0c4b7fcdffc38322555a9e35c22c9469:Nick:194176015020283762507:
How do I parse the final number? i.e.:
194176015020283762507
You should first use String.Split() to separate the string by the colon (':') separators. Then access the correct element.
var input = ":0c4b7fcdffc38322555a9e35c22c9469:Nick:194176015020283762507:";
var split = input.Split(':');
var final = split[3];
Note that by default, Split() keeps empty entries. You will have one at the beginning and end, because of the initial and ending colons. You could also use:
var split = input.Split(new[] {':'}, StringSplitOptions.RemoveEmptyEntries);
var final = split[2];
which, as the option implies, removes empty entries from the array. So your number would be at index 2 instead of 3.
string str = ":0c4b7fcdffc38322555a9e35c22c9469:Nick:194176015020283762507:";
string num = str.Split(':')[3];
var finalNumber = input.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries)
.Last()
This code will split your input string into strings, separated by : (empty strings are removed from start and end of sequence). And last string is returned, which is your finalNumber.
I need to parse a string so the result should output like that:
"abc,def,ghi,klm,nop"
But the string I am receiving could looks more like that:
",,,abc,,def,ghi,,,,,,,,,klm,,,nop"
The point is, I don't know in advance how many commas separates the words.
Is there a regex I could use in C# that could help me resolve this problem?
You can use the ,{2,} expression to match any occurrences of 2 or more commas, and then replace them with a single comma.
You'll probably need a Trim call in there too, to remove any leading or trailing commas left over from the Regex.Replace call. (It's possible that there's some way to do this with just a regex replace, but nothing springs immediately to mind.)
string goodString = Regex.Replace(badString, ",{2,}", ",").Trim(',');
Search for ,,+ and replace all with ,.
So in C# that could look like
resultString = Regex.Replace(subjectString, ",,+", ",");
,,+ means "match all occurrences of two commas or more", so single commas won't be touched. This can also be written as ,{2,}.
a simple solution without regular expressions :
string items = inputString.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
string result = String.Join(",", items);
Actually, you can do it without any Trim calls.
text = Regex.Replace(text, "^,+|,+$|(?<=,),+", "");
should do the trick.
The idea behind the regex is to only match that, which we want to remove. The first part matches any string of consecutive commas at the start of the input string, the second matches any consecutive string of commas at the end, while the last matches any consecutive string of commas that follows a comma.
Here is my effort:
//Below is the test string
string test = "YK 002 10 23 30 5 TDP_XYZ "
private static string return_with_comma(string line)
{
line = line.TrimEnd();
line = line.Replace(" ", ",");
line = Regex.Replace(line, ",,+", ",");
string[] array;
array = line.Split(',');
for (int x = 0; x < array.Length; x++)
{
line += array[x].Trim();
}
line += "\r\n";
return line;
}
string result = return_with_comma(test);
//Output is
//YK,002,10,23,30,5,TDP_XYZ