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In FireMonkey, LiveBindings are used to build database applications. The only possible source (rather than having a list to specify all the possible targets)Ģ.2 - Linking a tEdit to a tDataSet In FireMonkey, there are no "data sensitive" controls, like the tDbEdit VclĬontrol.
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The reason in both case is the 1-n multiplicity: it is easier to specify on the target side which is Therefore, from the target_rectangle_ back to the source_color_panel_. Database to the rescueĪgain: we link from the tDbEdit to the tDataSource. to which component should the tBindExpression added.Simply keep the database analogy in mind (the original information comes from the tDataSource and flows towards the tDbEdit control) the confusion about the "source" and the "control".Notify( source_color_panel_, 'Color') Ĭompile, run, and change the source tColorPanel trackbar positions source_color_panel_Change( Sender: TObject) īindingsList1.
#Delphi xe findinfiles update#
In this event, type the code which tells BindingsList1 to update the color Select source_color_panel_ and create its OnChange event To improve this we must trigger the change from However any change in the source_color_panel is not automatically forwarded to the target_rectangle_. The target_rectangle_ automatically takes the default source_color_panel green color:
#Delphi xe findinfiles software#
software used : Windows XP Home, Delphi XE2, update 1 installed.TBindingOutput, tCompiledBinding - Interface to Object conversion key words : tBindingExpression, iScope, iValue, tNestedScope,.
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Dump of the pseudo code and UML Class Diagram of the LiveBinding architecture