Besturingselementen voor formulieren in detail
- Werken met formulieren
- Besturingselementen Formulieren
- Database-formulieren
De beschikbare besturingselementen in formulieren zijn gelijk aan die van die in dialoogvensters. De selectie reikt van eenvoudige tekstvelden via keuzelijsten en combinatievakken tot diverse knoppen.
Hieronder vindt u een lijst met de meest belangrijke eigenschappen voor besturingselementen voor formulieren. Alle eigenschappen vormen een deel van de geassocieerde model-objecten.
In aanvulling op de standaard besturingselementen, is ook een tabel-controleveld-element beschikbaar voor formulieren, welke de complete medewerking van gegevensbron-tabellen toestaat. Dit wordt beschreven in het gedeelte Gegevensbron Formulieren in hoofdstuk Database-formulieren.
Knoppen
Het model-object van een besturingselement Knop verschaft de volgende eigenschappen:
- BackgroundColor (long)
- achtergrondkleur
- DefaultButton (Boolean)
- de knop dient als een standaard waarde. In dit geval reageert het ook op de invoer-knop als het geen focus heeft
- Enabled (Boolean)
- het besturingselement kan worden geactiveerd
- Tabstop (Boolean)
- het besturingselement kan worden bereikt via de tabulator-toets [Tab]
- TabIndex (Long)
- positie van het besturingselement in de volgorde van activering
- FontName (String)
- naam van het lettertype
- FontHeight (Single)
- hoogte van het teken in punten (pt)
- Tag (String)
- tekenreeks die aanvullende informatie bevat, die kan worden opgeslagen in de knop voor programma-gecontroleerde toegang
- TargetURL (String)
- doel-URL voor knoppen van het type URL
- TargetFrame (String)
- naam van het venster (of frame) waarin de TargetURL moet worden geopend bij activering van de knop (voor knoppen van het type URL)
- Label (String)
- label voor de knop
- TextColor (Long)
- tekstkleur van het besturingselement
- HelpText (String)
- automatisch weergegeven tekst van de Help die wordt weergegeven als de muisaanwijzer boven het besturingselement is
- HelpURL (String)
- URL van de online Help voor het overeenkomende besturingselement
- ButtonType (Enum)
- actie die is gekoppeld aan de knop (standaard waarde uit com.sun.star.form.FormButtonType)
- State (Short)
- in schakelknop, 1 = ingedrukt, 0 = normaal
Via de eigenschap ButtonType heeft u de mogelijkheid om een actie te definiëren die wordt uitgevoerd als de knop wordt ingedrukt. De geassocieerde groep van constanten com.sun.star.form.FormButtonType verschaft de navolgende waarden:
- PUSH
- standaard knop
- SUBMIT
- einde van formulier invoer (speciaal van belang voor formulieren in HTML)
- RESET
- herstelt alle waarden binnen het formulier naar hun originele waarden
- URL
- aanroep van de URL gedefinieerd in TargetURL (wordt geopend binnen het venster dat was gespecificeerd via TargetFrame)
De typen knop OK en Annuleren, die beschikbaar zijn in dialoogvensters, worden niet ondersteund in formulieren.
Optieknoppen
De volgende eigenschappen van een Optieknop zijn beschikbaar via zijn model-object:
- Enabled (Boolean)
- the control element can be activated
- Tabstop (Boolean)
- the control element can be reached through the tab key
- TabIndex (Long)
- position of control element in the activation sequence
- FontName (String)
- name of font type
- FontHeight (Single)
- height of character in points (pt)
- Tag (String)
- string containing additional information, which can be saved in the button for program-controlled access
- Label (String)
- inscription of button
- Printable (Boolean)
- the control element can be printed
- State (Short)
- if 1, the option is activated, otherwise it is deactivated
- RefValue (String)
- string for saving additional information (for example, for administering data record IDs)
- TextColor (Long)
- text color of control element
- HelpText (String)
- automatically displayed help text, which is displayed if the mouse cursor is above the control element
- HelpURL (String)
- URL of online help for the corresponding control element
The mechanism for grouping option buttons distinguishes between the control elements for dialogs and forms. Whereas control elements appearing one after another in dialogs are automatically combined to form a group, grouping in forms is performed on the basis of names. To do this, all option buttons of a group must contain the same name. Apache OpenOffice combines the grouped control elements into an array so that the individual buttons of a Apache OpenOffice Basic program can be reached in the same way.
The following example shows how the models of the control elements of a group can be iterated, exemplary displaying the states of all control elements in a given group:
Function test Dim oGroup as object Dim Doc As Object Dim Forms As Object Dim Form As Object Dim Ctl As Object Dim I as Integer Doc = ThisComponent Forms = Doc.Drawpage.Forms Form = Forms.GetbyIndex(0) oForm.getGroupByName("MyOptions", oGroup) msg = "" for i = LBound(oGroup) to UBound(oGroup) oCtl = oGroup(i) msg = msg + oCtl.Name + ": " + (str(oCtl.State)) + chr(10) next i MsgBox msg end Function
The code corresponds to the previous example for determining a simple control element model. It accesses the array of models using the GetGroupByName method (rather than the GetByName method to determine simple models).
Checkboxes
The model object of a checkbox form provides the following properties:
- Enabled (Boolean)
- the control element can be activated
- Tabstop (Boolean)
- the control element can be reached through the tab key
- TabIndex (Long)
- position of control element in the activation sequence
- FontName (String)
- name of font type
- FontHeight (Single)
- height of character in points (pt)
- Tag (String)
- string containing additional information, which can be saved in the button for program-controlled access
- Label (String)
- button label
- Printable (Boolean)
- the control element can be printed
- State (Short)
- if 1, the option is activated, otherwise it is deactivated
- RefValue (String)
- string for saving additional information (for example, for administrating data record IDs)
- TextColor (Long)
- text color of control element
- HelpText (String)
- automatically displayed help text, which is displayed if the mouse cursor is above the control element
- HelpURL (String)
- URL of online help for the corresponding control element
Text Fields
The model objects of text field forms offer the following properties:
- Align (short)
- orientation of text (0: left-aligned, 1: centered, 2: right-aligned)
- BackgroundColor (long)
- background color of control element
- Border (short)
- type of border (0: no border, 1: 3D border, 2: simple border)
- EchoChar (String)
- echo character for password field
- FontName (String)
- name of font type
- FontHeight (Single)
- height of character in points (pt)
- HardLineBreaks (Boolean)
- the automatic line breaks are permanently inserted in the text of the control element
- HScroll (Boolean)
- the text has a horizontal scrollbar
- MaxTextLen (Short)
- maximum length of text; if 0 is specified, there are no limits
- MultiLine (Boolean)
- permits multi-line entries
- Printable (Boolean)
- the control element can be printed
- ReadOnly (Boolean)
- the content of the control element is read-only
- Enabled (Boolean)
- the control element can be activated
- Tabstop (Boolean)
- the control element can be reached through the tab key
- TabIndex (Long)
- position of the control element in the activation sequence
- FontName (String)
- name of font type
- FontHeight (Single)
- height of character in points (pt)
- Text (String)
- text of control element
- TextColor (Long)
- text color of control element
- VScroll (Boolean)
- the text has a vertical scrollbar
- HelpText (String)
- automatically displayed help text, which is displayed if the mouse cursor is above the control element
- HelpURL (String)
- URL of online help for the corresponding control element
List Boxes
The model object of the list box forms provides the following properties:
- BackgroundColor (long)
- background color of control element
- Border (short)
- type of border (0: no border, 1: 3D frame, 2: simple frame)
- FontDescriptor (struct)
- structure with details of font to be used (in accordance with com.sun.star.awt.FontDescriptor structure)
- LineCount (Short)
- number of lines of control element
- MultiSelection (Boolean)
- permits multiple selection of entries
- SelectedItems (Array of Strings)
- list of highlighted entries
- StringItemList (Array of Strings)
- list of all entries
- ValueItemList (Array of Variant)
- list containing additional information for each entry (for example, for administrating data record IDs)
- Printable (Boolean)
- the control element can be printed
- ReadOnly (Boolean)
- the content of the control element is read-only
- Enabled (Boolean)
- the control element can be activated
- Tabstop (Boolean)
- the control element can be reached through the tab key
- TabIndex (Long)
- position of control element in the activation sequence
- FontName (String)
- name of font type
- FontHeight (Single)
- height of character in points (pt)
- Tag (String)
- string containing additional information which can be saved in the button for program-controlled access
- TextColor (Long)
- text color of control element
- HelpText (String)
- automatically displayed help text, which is displayed if the mouse cursor is above the control element
- HelpURL (String)
- URL of online help for the corresponding control element
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VBA : Through their ValueItemList property, list box forms provide a counterpart to the VBA property, ItemData, through which you can administer additional information for individual list entries. |
Furthermore, the following methods are provided though the view object of the list box:
- addItem (Item, Pos)
- inserts the string specified in the Item at the Pos position in the list
- addItems (ItemArray, Pos)
- inserts the entries listed in the string's ItemArray data field in the list at the Pos position
- removeItems (Pos, Count)
- removes Count entries as of the Pos position
- selectItem (Item, SelectMode)
- activates or deactivates the highlighting for the element specified in the string Item depending on the SelectMode variable
- makeVisible (Pos)
- scrolls through the list field so that the entry specified by Pos is visible
| Content on this page is licensed under the Public Documentation License (PDL). |
