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| Title | Write functions to determine whether a string starts or ends with a substring in Visual Basic 6 |
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| Description | This example shows how to write functions to determine whether a string starts or ends with a substring in Visual Basic 6 |
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| Keywords | StartsWith, EndsWith, substring |
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| Categories | Strings, Tips and Tricks |
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Visual Basic .NET's String class includes useful StartsWith and EndsWith methods. These are not complicated but they are handy. (The only really annoying omission from this class is a method that works like the Left$ function provided in Visual Basic 6.)
This example shows Visual Basic 6 versions.
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' Return True if test_string ends with target.
Private Function EndsWith(ByVal test_string As String, _
ByVal target As String) As Boolean
EndsWith = (Right$(test_string, Len(target)) = target)
End Function
' Return True if test_string starts with target.
Private Function StartsWith(ByVal test_string As String, _
ByVal target As String) As Boolean
StartsWith = (Left$(test_string, Len(target)) = target)
End Function
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Whenever you change the text in either text box, the program displays whether the test text starts or ends with the target text.
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