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split - C#: splitting a string and not returning empty string

I have a string:

a = "1;2;3;"

And I would like to split it this way:

foreach (string b in a.split(';'))

How can I make sure that I return only 1, 2, 3 and not an 'empty string'?

If I split 1;2;3 then I will get what I want. But if I split 1;2;3; then I get an extra 'empty string'. I have taken suggestions and done this:

string[] batchstring = batch_idTextBox.Text.Split(';', StringSplitOptions.RemoveEmptyEntries);

However, I am getting these errors:

Error 1 The best overloaded method match for 'string.Split(params char[])' has some invalid arguments C:Documents and SettingsagordonMy DocumentsVisual Studio 2008ProjectslomdbEnterDataDataEntryDAL.cs 18 36 EnterData

Error 2 Argument '2': cannot convert from 'System.StringSplitOptions' to 'char' C:Documents and SettingsagordonMy DocumentsVisual Studio 2008ProjectslomdbEnterDataDataEntryDAL.cs 18 68 EnterData

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String.Split takes an array when including any StringSplitOptions:

string[] batchstring = batch_idTextBox.Text.Split(new [] { ';' }, StringSplitOptions.RemoveEmptyEntries);

If you don't need options, the syntax becomes easier:

string[] batchstring = batch_idTextBox.Text.Split(';');

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