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Old November 10th, 2005, 10:48 PM
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Default binding a constituent control to property

Sorry to trouble y'all again, but the MSDN site (http://msdn.microsoft.com/library/de...lecontrols.asp) says when binding a constituent control to a property of a custom actives control, use the following:

Code:
Property Get AddressLine1() As String
   AddressLine1 = txtAddressLine1.Text
End Property

Public Property Let AddressLine1(NewValue As String)
   If CanPropertyChange("AddressLine1")
      txtAddressLine1.Text = NewValue
      ' The following line tells Visual Basic the
      ' property has changed--if you omit this line,
      ' the data source will not be updated!
      PropertyChanged "AddressLine1"
   End If
End Property
 So for my project, I did it:

Code:
Public Property Get dim1() As Single
    dim1 = txtdim1.text
End Property

Public Property Let dim1(ByVal New_Dim1 As Single)
    If CanPropertyChange("Dim1") Then
        txtdim1.Text = New_Dim1
        PropertyChanged "Dim1"
    End If
End Property
The problem is that I get a Type Mismatch error in my Property Get procedure: dim1=txtdim1.text line when I try to click on the txtdim1 textbox in design mode. I even get the same error if I use dim1=CSng(txtdim1.text). Any reason why this should be?
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Old November 11th, 2005, 02:08 PM
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Default

the line

dim1=txtdim1.text

gets a type mismatch every time the string in the text box cannot be converted to a number (for eaxmple, when it is empty...)

Add error handling.
Marco
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