UI Element - ComboBox
Related subfolder of the training project: "Training/UIM/Exercise/Basic"
Chapter Overview
In this training chapter you get familiar with the configuration possibilities of the UI Element ComboBox.

TAB "Element Properties"
The TAB "Element Properties" contains the configuration for
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UI element value horizontal alignment (left, center, right)
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UI element width configuration (percentage, pixel)
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UI element height configuration (pixel)
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UI container horizontal alignment (left, center, right)
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Sort manual (unchecked, checked)
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Show internal label (unchecked, checked)
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Search/Filter (unchecked, checked)

TAB "Data Mapping"
The TAB "Data Mapping" contains the attribute type related mapping of the UI element
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enum
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db error code
TAB "Data Validation"
The TAB "Data Validation" contains the attribute type related validation, default value and mandatory specification of the UI element based on the BO attribute configuration in SubTAB "Values and Validation".
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default value
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enum mandatory
TAB "Events"The TAB "Events" contains the events and related "Action" and "Validation" scripts of the UI element. -
onClick
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onBlur
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onChangeFor each UI element the related event action is displayed at the right side of the UI element. In case of a validation error a default error message is displayed at the top right of the UI page and the action script is not executed.
TAB "Visibility"The TAB "Visibility" contains the visibility configuration and the "Visibility" scripts of the UI element. -
enabled/disabled
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visible/invisible
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visible items
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editable items
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mandatory/ not mandatoryFor each UI element the visibility can be changed by the checkbox "Visibility Toggle".

Exercise
In this exercise you will get familiar with the configuration possibilities of the UI element by completing the UI TABs as described above. You can test the implementation in UI Page Preview, in the Preview of the Frontend Service Model and optionally in the xAPPnow User Portal.
Exercise 1: Create UI Page "ComboBox"
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Step 1: Open context menu of folder "Automation/User Interface/Training/UIM/Exercise/Basic" in the model tree
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Step 2: Select menu function "Create Model" to open dialog "Create User Interface Model"
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Step 3: Enter model name "ComboBox" and keep default options for "Default Device", "Default Label" and option "Model Type: UI Page"
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Step 4: Select option "From: UI Page" to open dialog "Select UI Page"
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Step 5: Open folder "…/Training/UIM/Template/Basic" to select template "TMPL_ComboBox" with double click
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Step 6: Click button "OK" to create the UI page

Exercise 2: TAB "Element Properties"
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Step 1: Drag&Drop attribute "questionare" from TAB "Data" into second free span and keep default in dialog "Select Component" to add the corresponding UI Label and UI ComboBox to the UI page.
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Step 2: Repeat Step 1 and add Label and ComboBox for attribute "questionare" to
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H-Aligment [Center], [Right]
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Width [50%], [100px]
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Height [50px], [100px]
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Container H-Aligment [Left], [Center], [Right]
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Sort Manual [Unchecked], [Checked]
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Show Internal Label [Unchecked], [Checked]
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Search/Filter [Unchecked], [Checked]
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Step 3: Select each UI ComboBox and right click to open context menu, click on button "H-Alignment" to configure the values [Left], [Center], [Right]
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Step 4: In next row select the UI ComboBox to configure width [50%] and width [100px]
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Step 5: Select each UI ComboBox to configure height [50px] and height [100px]
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Step 6: In row "Container (H-Alignment)" for each UI ComboBox:
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Select each UI ComboBox to configure width [50%].
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Select container to configure H-Alignment [Left], [Center], [Right] of the UI element
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Step 7: In row "Sort Manual" for second UI ComboBox select "Sort Manual"
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Step 8: In row "Show Internal Label" for second UI ComboBox:
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Remove label "Answer"
b. Select UI ComboBox and select "Show Internal Label"
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Step 9: In row "Search Filter" for second UI ComboBox select "Search/Filter":
Exercise 3: TAB "Data Mapping"
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Step 1: Drag&Drop attribute "region" from TAB "Data" into second free span of second row to open dialog "Select Component" to add the corresponding UI Label and UI ComboBox to the UI page.
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Step 2 Repeat Step 1 select ComboBox without Label for attribute
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"errorDB.errorCode"
Exercise 4: TAB "Data Validation"
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Step 1: Drag&Drop attribute "ocean" from TAB "Data" into the third free span of second row and keep default in dialog "Select Component" to add the corresponding UI Label and UI ComboBox to the UI page.
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Step 2 Repeat Step 1 and add Label and ComboBox for attributes
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"continent"
Exercise 5: TAB "Events" - Action Scripts
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Step 1: Drag&Drop attribute "month" from TAB "Data" into second free span and keep default in dialog "Select Component" to add the corresponding UI Label and UI ComboBox to the UI page.
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Step 2 Repeat Step 1 to add Label and ComboBox for attributes
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"day"
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"seasons"
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Step 3: Select the first UI ComboBox and open TAB "Implementation" SubTab "Events" to specify event type "onClick"
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Step 4: Implement the action script, which displays the related event action at the right side of the UI element.
localData.eventType.onClick = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_CLICK;
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Step 5: Repeat Step 3 and 4 for the other UI elements to specify further event types and related action scripts, which display the related event action at the right side of the UI element.
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event type "onBlur"
localData.eventType.onBlur = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_BLUR;
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event type "onChange"
localData.eventType.onChange = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_CHANGE;
Exercise 6: TAB "Events" - Action & Validation Scripts
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Step 1: Select the first UI ComboBox and open TAB "Implementation" SubTab "Events" to specify event type "onClick"
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Step 2: Implement the action the validation scripts, which display the related event action at the right side of the UI element in case of no validation error.
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action script "onClick" event
localData.eventType.onClickValid = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_CLICK_VALID;
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validation script "onClick" event
localData.eventType.isValid
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Step 3: Repeat Step 1 and 2 for the other UI elements to specify further event types and related action and validation scripts, which display the related event action at the right side of the UI element.
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action script
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"onBlur" event
localData.eventType.onBlurValid = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_BLUR_VALID;
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"onChange" event
localData.eventType.onChangeValid = globalDef.enums.Tutorial.UIM.DEF.EventMessage.ON_CHANGE_VALID;
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validation script
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"onBlur" event
localData.eventType.isValid
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"onChange" event
localData.eventType.isValid
Exercise 7: TAB "Visibility"
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Step 1: Drag&Drop attribute "toggleVisibility" from TAB "Data" into the third free span of second row and keep default in dialog "Select Component" to add the corresponding UI Label and UI CheckBox to the UI page.
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Step 2: Select the first UI ComboBox and open TAB "Implementation" SubTab "Visibility"
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Step 3: Click at visibility type "Enabled" and select state "Script"
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Step 4: Implement the visibility script, which toggles the visibility "enabled" and "disabled"
localData.toggleVisibility
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Step 5: Repeat steps 2..4 for second and third UI ComboBox for visibility type "Visible", which toggles the visibility "visible" and "invisible" and visibility type "Mandatory"
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Step 6: Select the first UI ComboBox of fourth row to configure Visible Items and open TAB "Implementation" SubTab "Visibility" and click at visibility property "Visible Items" and select state "Script"
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Step 7: Implement the visibility script to only set visible all items of the combobox except the values "Sunday" and "Saturday"
item!==globalDef.enums.Tutorial.UIM.DEF.WeekDay.SUNDAY &&
item!==globalDef.enums.Tutorial.UIM.DEF.WeekDay.SATURDAY
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Step 8: Select the second UI ComboBox of fourth row to configure Editable Items and open TAB "Implementation" SubTab "Visibility" and click at visibility property "Editable Items" and select state "Script"
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Step 9: Implement the visibility script to only set editable all items of the combobox except the value "Athletics"
item!==globalDef.enums.Tutorial.UIM.DEF.Sport.ATHLETICS

Exercise 8: Set UI Page as submodel of the Frontend Service Model
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Step 1: Open frontend service model "Automation/Service/Training/UIM/Exercise/Basic/ComboBox"
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Step 2: Select UI page "View ComboBox" to open TAB "General", SubTAB "Element"
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Step 3: Click button “Search“ to open dialog "Select or Create Submodel" and select UI page "ComboBox" with double click

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Step 4: Right click on button flow to set label with "Exit" flow.

Exercise 9: Test the UI Page
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Step 1: Open UI Page and click button "Preview" in the toolbar to directly test the UI page within the UI editor
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Step 2: Optionally publish the frontend service model and test the UI page in User Portal



































