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TCustomDBComboBox - a Data-aware Combo Box for displaying information from a Database
Source position: dbctrls.pp line 674
type TCustomDBComboBox = class(TCustomComboBox) end; |
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protected |
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procedure DataChange(); virtual; abstract; |
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DataChange - updates any changes in text |
procedure Notification(); override; |
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procedure Change; override; |
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Change -if there has been a change to the data the link must be notified, then inherited Change is called |
procedure UpdateData(); virtual; abstract; |
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UpdateData - implements any pending changes in the data |
procedure WndProc(); override; |
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public |
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constructor Create(); override; |
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destructor Destroy; override; |
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function ExecuteAction(); override; |
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function UpdateAction(); override; |
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procedure EditingDone; override; |
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Invokes the OnEditingDone event handler. |
property Field: TField; [r] |
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The Field to which this combobox is attached |
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The string appearing in the edit box. |
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property ItemIndex: Integer; |
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The index of the currently selected item, -1 if none is selected. |
property DataField: string; [rw] |
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The name (as a string) of the Feild whose data are to be linked to the ComboBox |
property DataSource: TDataSource; [rw] |
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The identity of the DataSource to which the ComboBox is attached |
property ReadOnly: Boolean; [rw] |
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Disallows entry of free text. |
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TCustomDBComboBox - a Data-aware Combo Box for displaying information from a Database |
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The base class for ComboBox components. |
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The base class for controls which can contain other (child) controls. |
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The base class for visible controls. |
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The base class for LCL components associated with widgets. |
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TComponent |
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TObject |
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HowToUseDataAwareControls - Hints for accessing databases |
lazarus-ccr.sourceforge.net |