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| Title | Invoke a function by name using CallByName |
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| Keywords | CallByName, execute, invoke, call, function, subroutine |
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| Categories | Tips and Tricks, Software Engineering |
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When the user clicks the Evaluate button, the program uses CallByName to invoke the function selected by the cboMethod ComboBox.
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Private Sub cmdEvaluate_Click()
Dim result As Variant
result = CallByName(Me, cboMethod.Text, VbMethod, _
txtParameter)
lblResult.Caption = Format$(result)
End Sub
Public Function Root(ByVal X As Single)
Root = Sqr(X)
End Function
Public Function Square(ByVal X As Single)
Square = X * X
End Function
Public Function Triple(ByVal X As Single)
Triple = 3 * X
End Function
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Note that CallByName is slower than invoking a function directly.
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