Visual Basic, My First Control

My First Control

Author	Message
Murr #1 / 8	My First Control Hello I'm trying to write a simple control but I'm having difficulty assigning values from a propert sheet. The control is simple , just a constituent Command button. When pressed it will return a random number between a range of and High specifed in the property sheet. I can get the Low and High propeties to show for the control but how the heck do I get the user modifed values. It seems that the proprty Let , Get fired too soon. Thanks in advance. Anyone know of a good url for learning controls? ======================================================= Option Explicit Dim myRand As New clRandom Dim m_Low As Long Dim m_high As Long Dim m_Bcolor As ColorConstants Dim m_style As Integer Public Property Get Low() As Long Low = m_Low End Property Public Property Let Low(vNewlow As Long) m_Low = vNewlow End Property Public Property Get High() As Long High = m_high End Property Public Property Let High(vNewhigh As Long) ??? when the developer changes the property how do I get into m_high????? m_high = vNewhigh End Property Public Property Get BackColor() As ColorConstants BackColor = m_Bcolor End Property Public Property Let BackColor(vNewcolor As ColorConstants) m_Bcolor = vNewcolor End Property Public Property Get Style() As Integer Style = m_style End Property Public Property Let Style(vNewStyle As Integer) m_style = vNewStyle End Property Private Sub Command1_Click() List1.Clear List1.AddItem myRand.NextNumber End Sub Private Sub UserControl_ReadProperties(PropBag As PropertyBag) If Ambient.UserMode = True Then Exit Sub Else myRand.Seed Low, High, 10 End If End Sub
Fri, 09 Aug 2002 03:00:00 GMT

David Winte #2 / 8	My First Control Look up "Public Property Get / Let / Set" David A. Winter Quote: > Hello > I'm trying to write a simple control but I'm having difficulty > assigning values from a propert sheet. The control is > simple , just a constituent Command button. When pressed > it will return a random number between a range of and High > specifed in the property sheet. I can get the Low and High > propeties to show for the control but how the heck do I > get the user modifed values. It seems that the proprty Let > , Get fired too soon. > Thanks in advance. > Anyone know of a good url for learning controls? > ======================================================= > Option Explicit > Dim myRand As New clRandom > Dim m_Low As Long > Dim m_high As Long > Dim m_Bcolor As ColorConstants > Dim m_style As Integer > Public Property Get Low() As Long > Low = m_Low > End Property > Public Property Let Low(vNewlow As Long) > m_Low = vNewlow > End Property > Public Property Get High() As Long > High = m_high > End Property > Public Property Let High(vNewhigh As Long) > ??? when the developer changes the property > how do I get into m_high????? > m_high = vNewhigh > End Property > Public Property Get BackColor() As ColorConstants > BackColor = m_Bcolor > End Property > Public Property Let BackColor(vNewcolor As ColorConstants) > m_Bcolor = vNewcolor > End Property > Public Property Get Style() As Integer > Style = m_style > End Property > Public Property Let Style(vNewStyle As Integer) > m_style = vNewStyle > End Property > Private Sub Command1_Click() > List1.Clear > List1.AddItem myRand.NextNumber > End Sub > Private Sub UserControl_ReadProperties(PropBag As PropertyBag) > If Ambient.UserMode = True Then > Exit Sub > Else > myRand.Seed Low, High, 10 > End If > End Sub
Sat, 10 Aug 2002 03:00:00 GMT

Murr #3 / 8	My First Control On Tue, 22 Feb 2000 07:37:57 GMT, "David Winter" Quote: >Look up "Public Property Get / Let / Set" Why? Murray Thayer Quote: >David A. Winter >> Hello >> I'm trying to write a simple control but I'm having difficulty >> assigning values from a propert sheet. The control is >> simple , just a constituent Command button. When pressed >> it will return a random number between a range of and High >> specifed in the property sheet. I can get the Low and High >> propeties to show for the control but how the heck do I >> get the user modifed values. It seems that the proprty Let >> , Get fired too soon. >> Thanks in advance. >> Anyone know of a good url for learning controls? >> ======================================================= >> Option Explicit >> Dim myRand As New clRandom >> Dim m_Low As Long >> Dim m_high As Long >> Dim m_Bcolor As ColorConstants >> Dim m_style As Integer >> Public Property Get Low() As Long >> Low = m_Low >> End Property >> Public Property Let Low(vNewlow As Long) >> m_Low = vNewlow >> End Property >> Public Property Get High() As Long >> High = m_high >> End Property >> Public Property Let High(vNewhigh As Long) >> ??? when the developer changes the property >> how do I get into m_high????? >> m_high = vNewhigh >> End Property >> Public Property Get BackColor() As ColorConstants >> BackColor = m_Bcolor >> End Property >> Public Property Let BackColor(vNewcolor As ColorConstants) >> m_Bcolor = vNewcolor >> End Property >> Public Property Get Style() As Integer >> Style = m_style >> End Property >> Public Property Let Style(vNewStyle As Integer) >> m_style = vNewStyle >> End Property >> Private Sub Command1_Click() >> List1.Clear >> List1.AddItem myRand.NextNumber >> End Sub >> Private Sub UserControl_ReadProperties(PropBag As PropertyBag) >> If Ambient.UserMode = True Then >> Exit Sub >> Else >> myRand.Seed Low, High, 10 >> End If >> End Sub
Sat, 10 Aug 2002 03:00:00 GMT

Remi Sabouri #4 / 8	My First Control can't you make the High and Low properties Public so you can get and set them? If you are using Property Let, you should also use Property Set because otherwise, it will make that variable read-only Remi Quote: >Hello >I'm trying to write a simple control but I'm having difficulty >assigning values from a propert sheet. The control is >simple , just a constituent Command button. When pressed >it will return a random number between a range of and High >specifed in the property sheet. I can get the Low and High >propeties to show for the control but how the heck do I >get the user modifed values. It seems that the proprty Let >, Get fired too soon. >Thanks in advance. >Anyone know of a good url for learning controls? >======================================================= >Option Explicit >Dim myRand As New clRandom >Dim m_Low As Long >Dim m_high As Long >Dim m_Bcolor As ColorConstants >Dim m_style As Integer >Public Property Get Low() As Long > Low = m_Low >End Property >Public Property Let Low(vNewlow As Long) > m_Low = vNewlow >End Property >Public Property Get High() As Long > High = m_high >End Property >Public Property Let High(vNewhigh As Long) >??? when the developer changes the property >how do I get into m_high????? > m_high = vNewhigh >End Property >Public Property Get BackColor() As ColorConstants > BackColor = m_Bcolor >End Property >Public Property Let BackColor(vNewcolor As ColorConstants) > m_Bcolor = vNewcolor >End Property >Public Property Get Style() As Integer > Style = m_style >End Property >Public Property Let Style(vNewStyle As Integer) > m_style = vNewStyle >End Property >Private Sub Command1_Click() > List1.Clear > List1.AddItem myRand.NextNumber >End Sub >Private Sub UserControl_ReadProperties(PropBag As PropertyBag) >If Ambient.UserMode = True Then > Exit Sub >Else > myRand.Seed Low, High, 10 >End If >End Sub
Sat, 10 Aug 2002 03:00:00 GMT

Murr #5 / 8	My First Control On Tue, 22 Feb 2000 13:59:38 -0600, "Remi Sabourin" Quote: >can't you make the High and Low properties Public so you can get and set >them? >If you are using Property Let, you should also use Property Set because >otherwise, it will make that variable read-only Thanks for the reply. The properties are public. Property Let is used for variables, Property Let is used for Objects. I can Get and set the properties it just doesn;t take effect. Let and Get or Let and Set are used in pairs. I have learned more now. The consitutent button control is destroyed and recreated at run time thus loosing any design time property changes. Looking at the next chapter in Applemans text to see how it's done. Thanks again Murray Quote: >Remi >>Hello >>I'm trying to write a simple control but I'm having difficulty >>assigning values from a propert sheet. The control is >>simple , just a constituent Command button. When pressed >>it will return a random number between a range of and High >>specifed in the property sheet. I can get the Low and High >>propeties to show for the control but how the heck do I >>get the user modifed values. It seems that the proprty Let >>, Get fired too soon. >>Thanks in advance. >>Anyone know of a good url for learning controls? >>======================================================= >>Option Explicit >>Dim myRand As New clRandom >>Dim m_Low As Long >>Dim m_high As Long >>Dim m_Bcolor As ColorConstants >>Dim m_style As Integer >>Public Property Get Low() As Long >> Low = m_Low >>End Property >>Public Property Let Low(vNewlow As Long) >> m_Low = vNewlow >>End Property >>Public Property Get High() As Long >> High = m_high >>End Property >>Public Property Let High(vNewhigh As Long) >>??? when the developer changes the property >>how do I get into m_high????? >> m_high = vNewhigh >>End Property >>Public Property Get BackColor() As ColorConstants >> BackColor = m_Bcolor >>End Property >>Public Property Let BackColor(vNewcolor As ColorConstants) >> m_Bcolor = vNewcolor >>End Property >>Public Property Get Style() As Integer >> Style = m_style >>End Property >>Public Property Let Style(vNewStyle As Integer) >> m_style = vNewStyle >>End Property >>Private Sub Command1_Click() >> List1.Clear >> List1.AddItem myRand.NextNumber >>End Sub >>Private Sub UserControl_ReadProperties(PropBag As PropertyBag) >>If Ambient.UserMode = True Then >> Exit Sub >>Else >> myRand.Seed Low, High, 10 >>End If >>End Sub
Sat, 10 Aug 2002 03:00:00 GMT

Cees Harlaa #6 / 8	My First Control Quote: > On Tue, 22 Feb 2000 13:59:38 -0600, "Remi Sabourin" > >can't you make the High and Low properties Public so you can get and set > >them? > >If you are using Property Let, you should also use Property Set because > >otherwise, it will make that variable read-only > Thanks for the reply. > The properties are public. Property Let is used for variables, > Property Let is used for Objects. I can Get and set the properties > it just doesn;t take effect. Let and Get or Let and Set are > used in pairs. > I have learned more now. The consitutent button control > is destroyed and recreated at run time thus loosing any > design time property changes. Looking at the next chapter > in Applemans text to see how it's done. > Thanks again > Murray > >Remi > >>Hello > >>I'm trying to write a simple control but I'm having difficulty > >>assigning values from a propert sheet. The control is > >>simple , just a constituent Command button. When pressed > >>it will return a random number between a range of and High > >>specifed in the property sheet. I can get the Low and High > >>propeties to show for the control but how the heck do I > >>get the user modifed values. It seems that the proprty Let > >>, Get fired too soon. Look into the probag statement. The probag is designed to hand over properies from designtime to run-time. -- Cees Harlaar Change .HL to .NL to send an e-mail Verander .HL in .NL om e-mail te sturen.
Sun, 11 Aug 2002 03:00:00 GMT

Remi Sabouri #7 / 8	My First Control never heard of probag, what is it? Quote: >Look into the probag statement. The probag is designed to hand over >properies from designtime to run-time. >-- >Cees Harlaar >Change .HL to .NL to send an e-mail >Verander .HL in .NL om e-mail te sturen.
Sun, 11 Aug 2002 03:00:00 GMT

Cees Harlaa #8 / 8	My First Control Quote: > never heard of probag, what is it? > >Look into the probag statement. The probag is designed to hand over > >properies from designtime to run-time. > >-- > >Cees Harlaar > >Change .HL to .NL to send an e-mail > >Verander .HL in .NL om e-mail te sturen. Sorry, should be PropertyBag, from vb5 help. A PropertyBag object holds information that is to be saved and restored across invocations of an object. Remarks A PropertyBag object is passed into an object through the ReadProperties event and the WriteProperties event in order to save and restore the state of the object. Using the methods of the PropertyBag object, the object can read or write properties of itself. The ReadProperty method of the PropertyBag object is used to read a value for a property, while the WriteProperty method of the PropertyBag object is used to write a value of a property. The value of a property can itself be an object; in that case the PropertyBag object will attempt to save it.
Sun, 11 Aug 2002 03:00:00 GMT

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