c# split string and remove empty string

var mobileNos = number.Replace(" ", "")
.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).ToList();

As I understand it can help to you;

string number = "9811456789, ";
List<string> mobileNos = number.Split(',').Where(x => !string.IsNullOrWhiteSpace(x)).ToList();

the result only one element in list as [0] = "9811456789".

Hope it helps to you.

The easiest and best solution is to use both StringSplitOptions.TrimEntries to trim the results and StringSplitOptions.RemoveEmptyEntries to remove empty entries, fed in through the pipe operator (|).

string number = "9811456789,   ";
List<string> mobileNos = number
    .Split(',', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries)
    .ToList();

Checkout the below test results to compare how each option works,

a string extension can do this in neat way as below the extension :

        public static IEnumerable<string> SplitAndTrim(this string value, params char[] separators)
        {
            Ensure.Argument.NotNull(value, "source");
            return value.Trim().Split(separators, StringSplitOptions.RemoveEmptyEntries).Select(s => s.Trim());
        }

then you can use it with any string as below

 char[] separator = { ' ', '-' };
 var mobileNos = number.SplitAndTrim(separator);

I know it's an old question, but the following works just fine:

string number = "9811456789,   ";
List<string> mobileNos = number.Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries).ToList();

No need for extension methods or whatsoever.

"string,,,,string2".Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);

return ["string"],["string2"]

If you are using Linq. This work for me.

string temp = "a,b,   ,c,  ";    
List<string> result = temp.Split(',').Where(i => string.IsNullOrWhiteSpace(i) == false).ToList();