Property return to default value at run-time in VB
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George Che
#1 / 6
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 Property return to default value at run-time in VB Hi, I have a control which has only 1 property. I can change the property at
design-time in a simplest VB project. But, the property return to the
default value at run-time.
What's the problem?
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| Mon, 07 Feb 2005 01:29:53 GMT |
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Igor Tandetni
#2 / 6
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Property return to default value at run-time in VB You are not persisting the property. List it in a property map - see BEGIN_PROP_MAP, PROP_ENTRY, END_PROP_MAP. -- With best wishes, Igor Tandetnik "For every complex problem, there is a solution that is simple, neat,
and wrong." H.L. Mencken
Quote: > Hi, > I have a control which has only 1 property. I can change the property
at
> design-time in a simplest VB project. But, the property return to the
> default value at run-time.
> What's the problem?
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| Mon, 07 Feb 2005 01:46:53 GMT |
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George Che
#3 / 6
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Property return to default value at run-time in VB thanks Igor, i got it.
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| Mon, 07 Feb 2005 02:45:14 GMT |
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Trevor Balco
#4 / 6
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Property return to default value at run-time in VB I am having trouble getting this same problem to work. Here is my property map: BEGIN_PROP_MAP(CQualcommCtrl)
PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
PROP_ENTRY("AppName", 1, CLSID_NULL)
PROP_ENTRY("UserName", 2, CLSID_NULL)
// Example entries
// PROP_ENTRY("Property Description", dispid, clsid)
// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()
I added the PROP_ENTRY for UserName and AppName. The DISPID's correspond to
the [id(n)] in the .idl file. Both properties are of type BSTR if that
makes any difference. Now I rebuild my ActiveX control and in eVB type
anything in for either of the properties and it still goes back to a blank
string after I press enter. Am I leaving something out? Project is an ATL
COM AppWizard for eVC++3.0 I inserted the control using the ATL Wizard and a
"Full control".
Quote: > You are not persisting the property. List it in a property map - see > BEGIN_PROP_MAP, PROP_ENTRY, END_PROP_MAP. > -- > With best wishes, > Igor Tandetnik > "For every complex problem, there is a solution that is simple, neat,
> and wrong." H.L. Mencken
> > Hi,
> > I have a control which has only 1 property. I can change the property
> at
> > design-time in a simplest VB project. But, the property return to the
> > default value at run-time.
> > What's the problem?
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| Mon, 07 Feb 2005 22:57:02 GMT |
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Igor Tandetni
#5 / 6
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Property return to default value at run-time in VB How are your property getters and setters implemented? I mean get_AppName, put_AppName, get_UserName, put_UserName. Are they being called at all? -- With best wishes, Igor Tandetnik "For every complex problem, there is a solution that is simple, neat,
and wrong." H.L. Mencken
Quote: > I am having trouble getting this same problem to work. Here is my property > map: > BEGIN_PROP_MAP(CQualcommCtrl)
> PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
> PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
> PROP_ENTRY("AppName", 1, CLSID_NULL)
> PROP_ENTRY("UserName", 2, CLSID_NULL)
> // Example entries
> // PROP_ENTRY("Property Description", dispid, clsid)
> // PROP_PAGE(CLSID_StockColorPage)
> END_PROP_MAP()
> I added the PROP_ENTRY for UserName and AppName. The DISPID's
correspond to
> the [id(n)] in the .idl file. Both properties are of type BSTR if
that
> makes any difference. Now I rebuild my ActiveX control and in eVB
type
> anything in for either of the properties and it still goes back to a
blank
> string after I press enter. Am I leaving something out? Project is
an ATL
> COM AppWizard for eVC++3.0 I inserted the control using the ATL Wizard
and a
> "Full control".
> > You are not persisting the property. List it in a property map - see
> > BEGIN_PROP_MAP, PROP_ENTRY, END_PROP_MAP.
> > --
> > With best wishes,
> > Igor Tandetnik
> > "For every complex problem, there is a solution that is simple,
neat,
> > and wrong." H.L. Mencken
> > > Hi,
> > > I have a control which has only 1 property. I can change the
property
> > at
> > > design-time in a simplest VB project. But, the property return to
the
> > > default value at run-time.
> > > What's the problem?
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| Mon, 07 Feb 2005 23:11:03 GMT |
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Trevor Balco
#6 / 6
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Property return to default value at run-time in VB Ahh, thank you Igor, while you did not provide a direct answer you did get me on the right path. The get_, put_ functions were being called, but since this is a Windows CE ActiveX control I have to have 2 versions compiled, 1 for the Desktop with MSVC++6 (for design mode), and the other for the CE device with eVC++3. I had the code #ifdef'd out in my Win32 build when I removed the #ifdef my properties are now persistant thanks!
Quote: > How are your property getters and setters implemented? I mean > get_AppName, put_AppName, get_UserName, put_UserName. Are they being > called at all? > -- > With best wishes, > Igor Tandetnik > "For every complex problem, there is a solution that is simple, neat,
> and wrong." H.L. Mencken
> > I am having trouble getting this same problem to work. Here is my
> property
> > map:
> > BEGIN_PROP_MAP(CQualcommCtrl)
> > PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
> > PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
> > PROP_ENTRY("AppName", 1, CLSID_NULL)
> > PROP_ENTRY("UserName", 2, CLSID_NULL)
> > // Example entries
> > // PROP_ENTRY("Property Description", dispid, clsid)
> > // PROP_PAGE(CLSID_StockColorPage)
> > END_PROP_MAP()
> > I added the PROP_ENTRY for UserName and AppName. The DISPID's
> correspond to
> > the [id(n)] in the .idl file. Both properties are of type BSTR if
> that
> > makes any difference. Now I rebuild my ActiveX control and in eVB
> type
> > anything in for either of the properties and it still goes back to a
> blank
> > string after I press enter. Am I leaving something out? Project is
> an ATL
> > COM AppWizard for eVC++3.0 I inserted the control using the ATL Wizard
> and a
> > "Full control".
> > > You are not persisting the property. List it in a property map - see
> > > BEGIN_PROP_MAP, PROP_ENTRY, END_PROP_MAP.
> > > --
> > > With best wishes,
> > > Igor Tandetnik
> > > "For every complex problem, there is a solution that is simple,
> neat,
> > > and wrong." H.L. Mencken
> > > > Hi,
> > > > I have a control which has only 1 property. I can change the
> property
> > > at
> > > > design-time in a simplest VB project. But, the property return to
> the
> > > > default value at run-time.
> > > > What's the problem?
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| Mon, 07 Feb 2005 23:27:29 GMT |
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