RTTI controls: what changed
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Title: RTTI controls
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| 1 | + | This page describes the package **RunTimeTypeInfoControls** in \<lazarusdir\>/components/rtticontrols/. | |
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| 3 | + | RTTI controls extend many LCL controls by the ability to directly connect to published properties of classes. They greatly reduce writing boring code, by automatically loading/saving data between LCL controls and published properties. In fact, you can create fully functional forms without writing any code at all. | |
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| 5 | + | In combination with [[Streaming components]] you can reduce the amount of code needed for connecting the program Data with the GUI and the Disk/Network to a minimum. | |
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| 7 | + | ## Testing Components | |
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| 9 | + | The RTTI controls are very useful when writing/testing a component. | |
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| 11 | + | - Drop the component onto a form | |
| 12 | + | - Drop an RTTI control onto the form | |
| 13 | + | - Set the RTTI component's **Link.TIObject** property to your component | |
| 14 | + | - Set the RTTI component's **Link.TIPropertyName** (from the drop-down list) to the property | |
| 15 | + | - You can now edit the property interactively and see the effects of your changes at runtime (and sometimes designtime; depending on the component) | |
| 16 | + | - Each RTTI control will try to invoke the appropriate property editor for your chosen property. | |
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| 18 | + | So for instance, if the property is a StringList type, the RTTIButton would bring up the StringList editor, the RTTIMemo would display it - all without writing a line of code! | |
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| 20 | + | ## See Also | |
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| 22 | + | - [explanation on RTTI for delphi that can apply to Free Pascal too](http://www.blong.com/Conferences/BorConUK98/DelphiRTTI/CB140.htm) | |
| 23 | + | - [[Runtime Type Information (RTTI)]] | |
| 24 | + | - [[RTTI tab]] | |
| 25 | + | - [explanation on RTTI controls in Lazarus](https://www.freepascal.org/~michael/articles/#rtti) | |
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| 27 | + | --- | |
| 28 | + | *From the Free Pascal wiki, page "RTTI controls", as it stood on 2020-06-10 after a change by Eric69, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* |