There are different ways split the string based on the delimiter. Here is one of the examples in C# to split the string. Place two textboxes in the form. Rename the first textbox to txtString and second textbox to txtDelimited.

private void btnsplit_Click(object sender, EventArgs e)
{
string str = txtString.Text;
string strSplit = txtDelimited.Text;
Regex reg = new Regex(strSplit);
string[] myString = reg.Split(str);
string Result=string.Empty;
foreach (object res in myString)
{
Result = Result + res.ToString() + "\n";
}
MessageBox.Show(Result);
}
The above code will split the delimited from the given text.