CODEWITHSUNDEEP
c#stringtrim
user3042186
user3042186

Reputation: 1237

How to remove the last specific character in a string

I use WinForms C#. I have a string value like below:

string Something = "1,5,12,34,";

I need to remove the last comma in this string. So how can I delete it?

Upvotes: 117

Views: 177116

Answers (9)

gudlyf
gudlyf

Reputation: 11

Try this:

string Something1= Something.Substring(0, Something.Length - 1 );

Upvotes: 1

Faisal Ashfaq
Faisal Ashfaq

Reputation: 2668

Or you can convert it into Char Array first by:

string Something = "1,5,12,34,";
char[] SomeGoodThing=Something.ToCharArray[];

Now you have each character indexed:

SomeGoodThing[0] -> '1'
SomeGoodThing[1] -> ','

Upvotes: 1

pmh
pmh

Reputation: 312

Try below

Something..TrimEnd(",".ToCharArray());

Upvotes: 2

Soner Gönül
Soner Gönül

Reputation: 98740

King King's answer is of course correct, and Tim Schmelter's comment is also good suggestion in your case.

But if you really want to remove the last comma in a string, you should find the index of the last comma and remove it like this:

string s = "1,5,12,34,12345";
int index = s.LastIndexOf(',');
Console.WriteLine(s.Remove(index, 1));

Output will be:

1,5,12,3412345

Here is an online demonstration.

It is unlikely that you want this way, but I want to point it out. And remember, the String.Remove method doesn't remove any characters in the original string, it returns new string.

Upvotes: 23

Lahiru Gamage
Lahiru Gamage

Reputation: 883

When you have spaces at the end. you can use beliow.

ProcessStr = ProcessStr.Replace(" ", "");
Emails     = ProcessStr.TrimEnd(';');

Upvotes: 0

nambi_r88
nambi_r88

Reputation: 49

Dim psValue As String = "1,5,12,34,123,12"
psValue = psValue.Substring(0, psValue.LastIndexOf(","))

output:

1,5,12,34,123

Upvotes: 3

bayu
bayu

Reputation: 401

The TrimEnd method takes an input character array and not a string. The code below from Dot Net Perls, shows a more efficient example of how to perform the same functionality as TrimEnd. 

static string TrimTrailingChars(string value)
{
    int removeLength = 0;
    for (int i = value.Length - 1; i >= 0; i--)
    {
        char let = value[i];
        if (let == '?' || let == '!' || let == '.')
        {
            removeLength++;
        }
        else
        {
            break;
        }
    }
    if (removeLength > 0)
    {
        return value.Substring(0, value.Length - removeLength);
    }
    return value;
}

Upvotes: 3

user2509901
user2509901

Reputation:

Try string.Remove();

string str = "1,5,12,34,";
string removecomma = str.Remove(str.Length-1);
MessageBox.Show(removecomma);

Upvotes: 6

King King
King King

Reputation: 63317

Try string.TrimEnd():

Something = Something.TrimEnd(',');

Upvotes: 343

Related Questions