Board index » cppbuilder » property is not read from dfm? Please help

2005-10-27 01:48:02 AM
cppbuilder59
Hello,
I'm trying my hand a bit at component writing but no matter what I try, it
seems values set in the object inspector are written into the .dfm file
but do not show up in the code.
I made below an example as simple as possible. What is wrong with this
code? No matter what I set in the object inspector for 'Max', the
messagebox always says it's 15.
The .dfm file contains the value set in the object inspector though.
Thank you.
header file
//---------------------------------------------------------------------------
class PACKAGE TMru : public TComponent
{
private:
int FMax;
protected:
public:
__fastcall TMru(TComponent* Owner);
__published:
__property int Max = {read=FMax,write=FMax};
}
cpp file, only contains generated stuff and a bit in the constructor
//---------------------------------------------------------------------------
__fastcall TMru::TMru(TComponent* Owner) : TComponent(Owner)
{
FMax = 15;
if (!ComponentState.Contains(csDesigning))
{
String S = IntToStr(FMax);
MessageBox(NULL, "fmax", S.c_str(), MB_OK);
}
}
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Jean wrote:
__property int Max = {read=FMax,write=FMax};
to:
__property int Max = {read=FMax,write=FMax,default=15};
HTH
Jonathan
 

"Jean" < XXXX@XXXXX.COM >wrote in message
is not streamed into the component until after the constructor has exited.
When the streaming is finished, the component's Loaded() method is called,
ie:
__fastcall TMru::TMru(TComponent* Owner)
: TComponent(Owner)
{
FMax = 15;
}
void __fastcall TMru::Loaded()
{
TComponent::Loaded();
if( !ComponentState.Contains(csDesigning) )
MessageBox(NULL, AnsiString(FMax).c_str(), "fmax", MB_OK);
}
should specify that same value in the property declaration as well:
__property int Max = {read=FMax, write=FMax, default=15};
Gambit
 

{smallsort}

On Wed, 26 Oct 2005 11:41:13 -0700, "Remy Lebeau \(TeamB\)"
< XXXX@XXXXX.COM >wrote:
It's working now.. Thank you!
These newsgroups are still a pleasure. A working answer within an
hour. I used to come here often some years ago. I still remember your
name from then. :)
Thanks again :)

< XXXX@XXXXX.COM >wrote in message
exact).
Gambit
 

have to wait for eons before you'll get it fixed in your current version...