BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Objects on a grid          BorlandTalk.com Forum Index -> Delphi OO design View previous topic :: View next topic   Author Message Gabriel GIbaut Guest Posted: Fri Feb 04, 2005 2:17 pm    Post subject: Objects on a grid Hello, I have a collection of objects which i need to edit on a grid (i just need to work with a couple of their string properties). I need to do some custom drawing too. My initial idea was to use a TStringGrid control and associate the underlying object with the objects property, so when the user enters-modifies a string i could handle the event and work with the underlying object. But the TStringGrid just lets you edit the data, if you need to add a line, you need to do all the key processing by yourself. I suppose a TClientDataset would be helpful but i´m short of ideas on how to associate the dataset records with the objects and keep them synchronized. Buying a grid is out of discussion because this is just an accesory feature :( TIA Gabriel Back to top Solerman Kaplon Guest Posted: Fri Feb 04, 2005 8:17 pm    Post subject: Re: Objects on a grid Gabriel GIbaut escreveu: Quote: Hello, I have a collection of objects which i need to edit on a grid (i just need to work with a couple of their string properties). I need to do some custom drawing too. My initial idea was to use a TStringGrid control and associate the underlying object with the objects property, so when the user enters-modifies a string i could handle the event and work with the underlying object. But the TStringGrid just lets you edit the data, if you need to add a line, you need to do all the key processing by yourself. I suppose a TClientDataset would be helpful but i´m short of ideas on how to associate the dataset records with the objects and keep them synchronized. Buying a grid is out of discussion because this is just an accesory feature Try mustangpeak.net and look for a link for the CoolBreeze control, its opensource, its the virtual equivalent VirtualTreeView-like of the ListView. I bet there isnt something you need that can't be made with it It says is still beta, but truste me, its very usable and all bugs I have found are already fixed. Solerman Back to top Lars Frische Guest Posted: Tue Feb 08, 2005 7:23 am    Post subject: Re: Objects on a grid Gabriel GIbaut wrote: Quote: Hello, I have a collection of objects which i need to edit on a grid (i just need to work with a couple of their string properties). I need to do some custom drawing too. My initial idea was to use a TStringGrid control and associate the underlying object with the objects property, so when the user enters-modifies a string i could handle the event and work with the underlying object. But the TStringGrid just lets you edit the data, if you need to add a line, you need to do all the key processing by yourself. I suppose a TClientDataset would be helpful but i´m short of ideas on how to associate the dataset records with the objects and keep them synchronized. Buying a grid is out of discussion because this is just an accesory feature :( TIA Gabriel Hi Gabriel Refer to http://www.gexperts.com/CustomDS.html for an excellent example on how to write your own custom dataset. The source is available on http://www.gexperts.com/CustomDatasets.zip and it includes an example about handling objects in a TCollection (CollectionEdit.pas). Using this example, I was able to write my own dataset that supports TObjectLists. If you are interested, I am happy to send you the source. Cheers Lars. -- Lars Frische Software Developer Test Maschinen Technik GmbH Germany Back to top Gabriel GIbaut Guest Posted: Wed Feb 09, 2005 5:22 pm    Post subject: Re: Objects on a grid Lars, I would appreciate if you send me some of your sources because that´s what i really need. Thanks Gabriel "Lars Frische" <nospam (AT) eddymax (DOT) com> escribió en el mensaje news:42086748$1 (AT) newsgroups (DOT) borland.com... Quote: Gabriel GIbaut wrote: Hello, I have a collection of objects which i need to edit on a grid (i just need to work with a couple of their string properties). I need to do some custom drawing too. My initial idea was to use a TStringGrid control and associate the underlying object with the objects property, so when the user enters-modifies a string i could handle the event and work with the underlying object. But the TStringGrid just lets you edit the data, if you need to add a line, you need to do all the key processing by yourself. I suppose a TClientDataset would be helpful but i´m short of ideas on how to associate the dataset records with the objects and keep them synchronized. Buying a grid is out of discussion because this is just an accesory feature :( TIA Gabriel Hi Gabriel Refer to http://www.gexperts.com/CustomDS.html for an excellent example on how to write your own custom dataset. The source is available on http://www.gexperts.com/CustomDatasets.zip and it includes an example about handling objects in a TCollection (CollectionEdit.pas). Using this example, I was able to write my own dataset that supports TObjectLists. If you are interested, I am happy to send you the source. Cheers Lars. -- Lars Frische Software Developer Test Maschinen Technik GmbH Germany Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi OO design All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.