Untitled

Substring starting at specific character count
Dim testString As String = "part, description, order, get this text, and this text"
Dim result As String = ""
result = testString.Substring(testString.IndexOf(",", 0, 3))

string.Join(",", "aaa,bbb,ccc,ddd,eee".Split(',').Skip(2));

Dim testString As String = "part, description, order, get this text"
Dim result As String = ""
result = testString.Substring(testString.LastIndexOf(",") + 1)

' You can add code to check if the LastIndexOf returns a positive number
Dim result As String = testString.SubString(testString.LastIndexOf(",")+1)

Dim result As String = Regex.Replace(testString, "(.*,)(.*)$", "$2")

Dim testString As String = "part, description, order, get this text"
Dim index As Int32 = 0

For i As Int32 = 1 To 3
  index = testString.IndexOf(","c, index + 1)
  If index < 0 Then
    ' Not enough commas. Handle this.
  End If
Next
Dim result As String = testString.Substring(index + 1)

Dim testString As String = "part, description, order, get this text"
    Dim resultArray As String() = testString.Split(New Char() {","c}, 3)
    Dim resultString As String = resultArray(2)

Dim testString As String = "part, description, order, get this text"
    Dim resultArray As String() = testString.Split(New Char() {","c}, 3)
    Dim resultString As String = resultArray(2)