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Tag: content model change |
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| == TDBGridControler is a non visual component with no dependencies providing added functionalities for the TDBGrid object== | | == See also == |
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| | | * [[TDBGridController]] |
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| Package download link : https://gitlab.com/lazaruscomponent/dbgridcontroler
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| [[File:TdxDBGridControler_200.png|32px||Left|]] TDBGridControler component
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| ; You need more functionalities? A grid controller that provide extra features to your existing TDBGrid
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| * Searching expression in the grid
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| * Searching expression in column
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| * Column filter editor | |
| * Datetime editor, memo editor and lookup editor
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| * Saving the current filter view
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| * Multi column sorting
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| * Column chooser editor
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| * Column grouping visual separator on one level
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| * Footer and aggregation on columns
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| ; TDBGrid Overidden Events to achive the task
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| * OnCellDraw
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| * OnCellHint
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| * OnEditorEdit
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| * OnMouseClick
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| * OnTitleClick
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| * OnTitleDraw
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| {| class="wikitable"
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| |+ TDBGridControler events
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| |-
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| |OnAfterFilterGrid
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| |After filter execution
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| |-
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| |OnAfterSortColumn
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| |After a column is sorted
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| |-
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| |OnAggregation
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| |Define which column is showing an aggregation
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| |-
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| |OnBeforeSortColumn
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| |Before a column is sorted
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| |-
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| |OnLocalize
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| |Use to translate string resources
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| |-
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| |OnPrepareLookupDataset
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| |Use to prepare the lookup dataset
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| |-
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| |OnSortColumn
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| |Custom sort event, could be use to change order by statement in the SQL query
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| |}
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| ;Aggregation example on 2 lines
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| <syntaxhighlight lang="pascal">
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| Procedure TForm1.dxDBGridControler1Aggregation(Sender: TdxDBGridControler);
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| Begin
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| Sender.ColumnPropertyList.ColumnPropertyByName('ProjectManager').FooterAlignment := taRightJustify;
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| Sender.ColumnPropertyList.ColumnPropertyByName('ProjectManager').FooterDisplayText :=
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| 'Count Distinct : ' + Sender.ColumnPropertyList.Aggregation(agDistinct, 'ProjectManager').AsString;
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|
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| // Use the FooterPanel property to set the height : dxDBGridControler1.FooterPanel.Height := Self.DBGrid1.DefaultRowHeight * 2;
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| Sender.ColumnPropertyList.ColumnPropertyByName('OpeningDate').FooterAlignment := taCenter;
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| Sender.ColumnPropertyList.ColumnPropertyByName('OpeningDate').FooterDisplayText :=
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| 'Min : ' + Sender.ColumnPropertyList.Aggregation(agMin, 'OpeningDate').AsString + Char(13) + Char(10) +
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| 'Max : ' + Sender.ColumnPropertyList.Aggregation(agMax, 'OpeningDate').AsString;
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| End;
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| </syntaxhighlight>
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| ;Localization example, french translation of some of the component string resources
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| <syntaxhighlight lang="pascal">
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| Procedure TForm1.dxDBGridControler1Localize(Sender: TObject; Component: TComponent; ID_Ressource: String; Var Translation: String);
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| Begin
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| If ID_Ressource = msg_search Then
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| Translation := 'Recherche...'
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| Else If ID_Ressource = msg_first Then
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| Translation := 'Aller au début'
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| Else If ID_Ressource = msg_prior Then
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| Translation := 'Précédent'
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| Else If ID_Ressource = msg_next Then
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| Translation := 'Suivant'
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| Else If ID_Ressource = msg_last Then
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| Translation := 'Aller à la fin'
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| Else If ID_Ressource = msg_add Then
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| Translation := 'Ajouter'
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| Else If ID_Ressource = msg_delete Then
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| Translation := 'Détruire'
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| Else If ID_Ressource = msg_edit Then
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| Translation := 'Éditer'
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| Else If ID_Ressource = msg_save Then
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| Translation := 'Enregistrer'
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| Else If ID_Ressource = msg_cancel Then
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| Translation := 'Annuler'
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| Else If ID_Ressource = msg_refresh Then
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| Translation := 'Actualiser'
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| Else If ID_Ressource = msg_btncancel Then
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| Translation := 'Annuler'
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| Else If ID_Ressource = msg_of Then
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| Translation := 'de'
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| Else If ID_Ressource = msg_nodata Then
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| Translation := 'Aucune donnée trouvée!';
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| End;
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| </syntaxhighlight>
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| ;Screen shots
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| [[File:TdxDBGridControler_SearchGrid.png]]
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| [[File:TdxDBGridControler_MultiSort.png]]
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| [[File:TdxDBGridControler_Properties.png]] | |
