Remove last specific character in a string c#

I use WinForms c#.I have string value like below,

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

I need to remove last comma in a string. So How can i delete it ?

9 Answers

Try string.TrimEnd():

Something = Something.TrimEnd(','); 

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 a 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.

Try string.Remove();

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

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

output:

1,5,12,34,123 

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; } 

Try below

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

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] -> ',' 

Play around it

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

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

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