Tag: content model change |
|
| Line 1: |
Line 1: |
| == TDBGridController is a non visual component with no dependencies providing added functionalities for the TDBGrid object==
| |
|
| |
|
|
| |
|
| |
| Package download link : https://gitlab.com/lazaruscomponent/dbgridcontroler
| |
|
| |
|
| |
| [[File:TdxDBGridControler_200.png|32px||Left|]] TDBGridController component
| |
|
| |
|
| |
| ; You need more functionalities? A grid controller that provide extra features to your existing TDBGrid
| |
|
| |
| * Searching expression in the grid
| |
| * Searching expression in column
| |
| * Column filter editor
| |
| * Datetime editor, memo editor and lookup editor
| |
| * Saving the current filter view
| |
| * Multi column sorting
| |
| * Column chooser editor
| |
| * Column grouping visual separator on one level
| |
| * Footer and aggregation on columns
| |
|
| |
|
| |
| ; TDBGrid Overidden Events to achive the task
| |
|
| |
| * OnCellDraw
| |
| * OnCellHint
| |
| * OnEditorEdit
| |
| * OnMouseClick
| |
| * OnTitleClick
| |
| * OnTitleDraw
| |
|
| |
|
| |
|
| |
| {| class="wikitable"
| |
| |+ TDBGridController events
| |
| |-
| |
| |OnAfterFilterGrid
| |
| |Event handler signaled after filter execution
| |
| |-
| |
| |OnAfterSortColumn
| |
| |Event handler signaled after sorting a column
| |
| |-
| |
| |OnAggregation
| |
| |Event handler to define which column is showing an aggregation
| |
| |-
| |
| |OnBeforeSortColumn
| |
| |Event handler signaled before sorting a column
| |
| |-
| |
| |OnLocalize
| |
| |Event handler signaled to translate string resources
| |
| |-
| |
| |OnPrepareLookupDataset
| |
| |Event handler signaled to prepare the lookup dataset if needed
| |
| |-
| |
| |OnSortColumn
| |
| |Event handler signaled to change the [order by] statement in a SQL query if needed
| |
| |}
| |
|
| |
|
| |
| ; Aggregation example on 2 lines
| |
|
| |
| <syntaxhighlight lang="pascal">
| |
| Procedure TForm1.dxDBGridController1Aggregation(Sender: TdxDBGridController);
| |
| Begin
| |
| Sender.ColumnPropertyList.ColumnPropertyByName('ProjectManager').FooterAlignment := taRightJustify;
| |
| Sender.ColumnPropertyList.ColumnPropertyByName('ProjectManager').FooterDisplayText :=
| |
| 'Count Distinct : ' + Sender.ColumnPropertyList.Aggregation(agDistinct, 'ProjectManager').AsString;
| |
|
| |
| // Use the FooterPanel property to set the height : dxDBGridControler1.FooterPanel.Height := Self.DBGrid1.DefaultRowHeight * 2;
| |
| Sender.ColumnPropertyList.ColumnPropertyByName('OpeningDate').FooterAlignment := taCenter;
| |
| Sender.ColumnPropertyList.ColumnPropertyByName('OpeningDate').FooterDisplayText :=
| |
| 'Min : ' + Sender.ColumnPropertyList.Aggregation(agMin, 'OpeningDate').AsString + Char(13) + Char(10) +
| |
| 'Max : ' + Sender.ColumnPropertyList.Aggregation(agMax, 'OpeningDate').AsString;
| |
| End;
| |
| </syntaxhighlight>
| |
|
| |
|
| |
| ; Localization example, french translation of some of the component string resources
| |
|
| |
| <syntaxhighlight lang="pascal">
| |
| Procedure TForm1.dxDBGridController1Localize(Sender: TObject; Component: TComponent; ID_Ressource: String; Var Translation: String);
| |
| Begin
| |
| If ID_Ressource = msg_search Then
| |
| Translation := 'Recherche...'
| |
| Else If ID_Ressource = msg_first Then
| |
| Translation := 'Aller au début'
| |
| Else If ID_Ressource = msg_prior Then
| |
| Translation := 'Précédent'
| |
| Else If ID_Ressource = msg_next Then
| |
| Translation := 'Suivant'
| |
| Else If ID_Ressource = msg_last Then
| |
| Translation := 'Aller à la fin'
| |
| Else If ID_Ressource = msg_add Then
| |
| Translation := 'Ajouter'
| |
| Else If ID_Ressource = msg_delete Then
| |
| Translation := 'Détruire'
| |
| Else If ID_Ressource = msg_edit Then
| |
| Translation := 'Éditer'
| |
| Else If ID_Ressource = msg_save Then
| |
| Translation := 'Enregistrer'
| |
| Else If ID_Ressource = msg_cancel Then
| |
| Translation := 'Annuler'
| |
| Else If ID_Ressource = msg_refresh Then
| |
| Translation := 'Actualiser'
| |
| Else If ID_Ressource = msg_btncancel Then
| |
| Translation := 'Annuler'
| |
| Else If ID_Ressource = msg_of Then
| |
| Translation := 'de'
| |
| Else If ID_Ressource = msg_nodata Then
| |
| Translation := 'Aucune donnée trouvée!';
| |
| End;
| |
| </syntaxhighlight>
| |
|
| |
|
| |
| ; Screen shots
| |
|
| |
| [[File:TdxDBGridControler_SearchGrid.png]]
| |
|
| |
|
| |
| [[File:TdxDBGridControler_MultiSort.png]]
| |
|
| |
|
| |
| [[File:TdxDBGridControler_Properties.png]]
| |
|
| |
| == See also ==
| |
|
| |
| * [[doc:lcl/dbgrids/tdbgrid.html|TDBGrid doc]]
| |
| * [[TDBGrid]]
| |
| * [[TStringGrid]]
| |
| * [[Grids Reference Page]]
| |
