Re: [Lazarus] Adding data field to a child node in a treeview
Susie, You may find the code for TIBTreeView in the IBX for Lazarus package as a useful example of how to create a data aware treeview. Even you don't want to use IBX, the overall approach should work with other DB packages. Tony Whyman MWA On 04/07/15 09:46, Susie Nicol wrote: Hi - me again I have a Lazarus treeview, which I am populating from several sql queries. I add child nodes in this way, setting them to one of the fields returned from the query while Not SQLQuery1.EOF do Begin treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); SQLQuery1.Next end; That works of course. I want to modify the newly added node by setting its data property to another field in the loop - something like treeview1.SOMETHING.data := Pointer(SQLQuery1.fields[1].AsInteger); but the problem is that I can't work out how to identify the newly-added child node. Is it possible? Thanks in advance Susie -- Susie K Nicol Christchurch New Zealand. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Help for your applications
On 2015-07-04 10:21, Marc Santhoff wrote: I like PasDoc, because it works like JavaDoc: The original author wasn't clear about exactly what he wants. It might be worth adding that PasDoc (like fpdoc) is meant for API Class (source code) documentation , not for general application help. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Adding data field to a child node in a treeview
Thanks heaps guys. That's great. On Sat, Jul 4, 2015 at 9:00 PM, Howard Page-Clark h...@talktalk.net wrote: On 04/07/2015 09:46, Susie Nicol wrote: Hi - me again I have a Lazarus treeview, which I am populating from several sql queries. I add child nodes in this way, setting them to one of the fields returned from the query while Not SQLQuery1.EOF do Begin treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); SQLQuery1.Next end; That works of course. I want to modify the newly added node by setting its data property to another field in the loop - something like treeview1.SOMETHING.data := Pointer(SQLQuery1.fields[1].AsInteger); but the problem is that I can't work out how to identify the newly-added child node. Is it possible? var node: TTreeNode; begin node:=TreeView1.Items.AddChild(TreeView1.Selected,SQLQuery1.Fileds[0].AsString); node.Data:=pointer(SQLQuery1.Fields[0].AsInteger); SQLQuery1.Next; end; --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Adding data field to a child node in a treeview
Hi - me again I have a Lazarus treeview, which I am populating from several sql queries. I add child nodes in this way, setting them to one of the fields returned from the query while Not SQLQuery1.EOF do Begin treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); SQLQuery1.Next end; That works of course. I want to modify the newly added node by setting its data property to another field in the loop - something like treeview1.SOMETHING.data := Pointer(SQLQuery1.fields[1].AsInteger); but the problem is that I can't work out how to identify the newly-added child node. Is it possible? Thanks in advance Susie -- Susie K Nicol Christchurch New Zealand. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Adding data field to a child node in a treeview
On Sat, 4 Jul 2015, Susie Nicol wrote: Hi - me again I have a Lazarus treeview, which I am populating from several sql queries. I add child nodes in this way, setting them to one of the fields returned from the query while Not SQLQuery1.EOF do Begin treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); SQLQuery1.Next end; That works of course. I want to modify the newly added node by setting its data property to another field in the loop - something like treeview1.SOMETHING.data := Pointer(SQLQuery1.fields[1].AsInteger); but the problem is that I can't work out how to identify the newly-added child node. Is it possible? Not like this. You need to keep a reference when doing an AddChild: Var N : TTreeNode; begin N:=Treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); N.data := Pointer(SQLQuery1.fields[1].AsInteger); end; Michael.-- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Adding data field to a child node in a treeview
On 04/07/2015 09:46, Susie Nicol wrote: Hi - me again I have a Lazarus treeview, which I am populating from several sql queries. I add child nodes in this way, setting them to one of the fields returned from the query while Not SQLQuery1.EOF do Begin treeview1.items.addchild(treeview1.selected, SQLQuery1.fields[0].AsString); SQLQuery1.Next end; That works of course. I want to modify the newly added node by setting its data property to another field in the loop - something like treeview1.SOMETHING.data := Pointer(SQLQuery1.fields[1].AsInteger); but the problem is that I can't work out how to identify the newly-added child node. Is it possible? var node: TTreeNode; begin node:=TreeView1.Items.AddChild(TreeView1.Selected,SQLQuery1.Fileds[0].AsString); node.Data:=pointer(SQLQuery1.Fields[0].AsInteger); SQLQuery1.Next; end; --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Help for your applications
On Fr, 2015-07-03 at 21:34 +0100, Richard Mace wrote: Hi, When writing help files and documentation for your apps, what are peoples preferences? I like PasDoc, because it works like JavaDoc: http://pasdoc.sipsolutions.net/ -- Marc Santhoff m.santh...@web.de -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
Old dbase Sent from my iPhone On Jul 4, 2015, at 11:04, waldo kitty wkitt...@windstream.net wrote: On 07/04/2015 09:20 AM, Larry Dalton wrote: Where can I get a tutorial for using dbase on lazarus? dbase as in the old dBase database stuff or dbase as in coding for and using (SQL) databases? IIRC and unless something has changed that i'm not aware of (quite easy), the dbase interface code is only really for reading that data... today's databases are all SQL databases which offers a lot more capabilities and is really where you should look... if you have an existing dbase database, you might consider to convert it from that format to SQL and store the information in a modern database... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
Is there a way to use microsoft excel spreadsheets? Sent from my iPhone On Jul 4, 2015, at 11:04, waldo kitty wkitt...@windstream.net wrote: On 07/04/2015 09:20 AM, Larry Dalton wrote: Where can I get a tutorial for using dbase on lazarus? dbase as in the old dBase database stuff or dbase as in coding for and using (SQL) databases? IIRC and unless something has changed that i'm not aware of (quite easy), the dbase interface code is only really for reading that data... today's databases are all SQL databases which offers a lot more capabilities and is really where you should look... if you have an existing dbase database, you might consider to convert it from that format to SQL and store the information in a modern database... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
I used delphi with .db and .xls files for years Sent from my iPhone On Jul 4, 2015, at 11:04, waldo kitty wkitt...@windstream.net wrote: On 07/04/2015 09:20 AM, Larry Dalton wrote: Where can I get a tutorial for using dbase on lazarus? dbase as in the old dBase database stuff or dbase as in coding for and using (SQL) databases? IIRC and unless something has changed that i'm not aware of (quite easy), the dbase interface code is only really for reading that data... today's databases are all SQL databases which offers a lot more capabilities and is really where you should look... if you have an existing dbase database, you might consider to convert it from that format to SQL and store the information in a modern database... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
On 07/04/2015 09:20 AM, Larry Dalton wrote: Where can I get a tutorial for using dbase on lazarus? dbase as in the old dBase database stuff or dbase as in coding for and using (SQL) databases? IIRC and unless something has changed that i'm not aware of (quite easy), the dbase interface code is only really for reading that data... today's databases are all SQL databases which offers a lot more capabilities and is really where you should look... if you have an existing dbase database, you might consider to convert it from that format to SQL and store the information in a modern database... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
Am Saturday 04 July 2015 15:20:57 schrieb Larry Dalton: Where can I get a tutorial for using dbase on lazarus? in the wiki? http://wiki.freepascal.org/Lazarus_Tdbf_Tutorial -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Dbase tutorial
On 07/04/2015 12:19 PM, Larry Dalton wrote: Is there a way to use microsoft excel spreadsheets? yes... it is different than database stuffs, though... i haven't done it but i have read about it over the years i've been on this list... fpspreadsheet is what you want for that... if you are doing anything with csv files, then you probably want to start here... https://www.google.com/search?q=freepascal+lazarus+csv+files also, please don't top post... it really messes up trying to follow a conversation... it is a huge mess when it gets mixed in with inline posting and bottom posting making a truly distasteful hash of things ;) On Jul 4, 2015, at 11:04, waldo kitty wkitt...@windstream.net wrote: On 07/04/2015 09:20 AM, Larry Dalton wrote: Where can I get a tutorial for using dbase on lazarus? dbase as in the old dBase database stuff or dbase as in coding for and using (SQL) databases? IIRC and unless something has changed that i'm not aware of (quite easy), the dbase interface code is only really for reading that data... today's databases are all SQL databases which offers a lot more capabilities and is really where you should look... if you have an existing dbase database, you might consider to convert it from that format to SQL and store the information in a modern database... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Dbase tutorial
Where can I get a tutorial for using dbase on lazarus? Sent from my iPhone -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
