This is the fourth how-to in this series on creating an employee directory in the Web Modeler. In this how-to, you will learn how to add pages to the app.
This how-to will teach you how to do the following:
- Create an overview page
- Create a detail page
- Connect pages to a domain model
- Use the Google Maps Widget
Before starting with this how-to, make sure you have completed the following prerequisite:
- Complete the third how-to in this series: Step 3: Publish and View Your App
3 Adding Pages to the User Interface
Pages define the user interface of your Mendix app. Each page consists of widgets such as buttons, list views, data grids and input elements. For example, the default home page comes with a header and a layout grid.
3.1 Adding an Employee Overview Page
Now that you have created a basic dashboard, you need to add a new page that can be opened from a dashboard item that reflects its purpose. To achieve this, follow these steps:
Select the top-left BUTTON image:
Click the Icon property and change it to User:
Select the top-left Open Page button and enter Employees for the Caption property:
Select the image you just changed to a user image and set the On Click Action property to Page:
Change the page property by clicking Select page:
To create a new page in the Select Page dialog box, do the following:
a. Click New page.
b. Change the title of the page to Employees.
c. Select Lists > Lists Default for the template.
Click Create and you’ve created your first page! Let’s finish up some things before you start working on the new Employees page.
Select the Home page by clicking the Pages icon in the left menu bar.
Select the Button with the Employees caption.
Change the On Click Action property of the button by setting it to Page.
For the Page property of this button, select the page named Employees.
Great, you’re done. Now you’re ready to head over to the Employees page!
3.2 Editing the New Employees Page
A new page is based on a page template, which in this case is Lists Default, which you selected in a previous steps. The page template consists of several widgets for you to change.
To edit the widgets, follow these steps:
Open the Employees page by using the recent documents option:
Select the TEXT widget with Title:
Change the Content property to Employees.
Delete the Text widget with the subtitle.
Select the CONTAINER where the Add button is located:
Select the parent Row using the breadcrumb:
Change the Row Layout to large left column & small right column for all profiles:
3.3 Switching Building Blocks
If one of the available building blocks is more similar to your requirement than what is provided by default in page templates, you can easily make a replacement.
To switch building blocks, follow these steps:
Select the LIST VIEW widget and delete it:
Open the Toolbox and from Lists, drag the List3 building block into the container.
At this point the page looks pretty nice, so you’re ready to connect some data elements to it!
3.4 Creating and Connecting an Employee Data Structure to the Page
This page has several widgets to display records from your database. In Mendix, the structure of a database record is defined by an Entity.
To create the entity for an employee, follow these steps:
Select the LIST VIEW, which groups all the user cards together:
You want to create a new entity, so click the Entity property:
To create a new entity in the Select Entity dialog box, do the following:
a. Click New Entity.
b. Enter Employee for the Name.
c. Click Create.
Select the TEXT widget of the top user card and clear the Content property:
Click Add parameter for the Content property:
Create a new attribute in the Select your attribute dialog box (which will be added to the Employee entity) by doing the following:
a. Enter Name for the attribute Name.
b. Set the attribute Type to String.
c. Click Create.
In the subtitle TEXT widget, repeat steps 4-6 to add an attribute for Email [String]:
3.5 Adding an Input Employee Page
Now that you have created an entity representing the employees, you also need to populate that entity with data. The quickest way to add data to your app is to create an input page.
To add a page for inputting employees, follow these steps:
Select the Add button on the Employees page:
Select Employee for the Entity property of the button:
Click the Page property to open the Select Page dialog box.
Click New page and do the following:
a. Enter Employee for the Title of the page.
b. Select Forms > Form Vertical for the template:
3.6 Connecting the Input Page to the Employee Entity
The page you created consists of a set of text box widgets grouped together by a data view (a data view serves as the glue between page widgets and entities).
To connect the text box widgets to the Employee entity attributes, follow these steps:
Select the text box widget with the Name caption.
Click the icon in the data source header to select the containing data view.
Set the Entity property of the related data view to Employee.
Select the text box with the Name caption and connect it to the the Name attribute of the Employee entity.
Do the same thing for Email.
Add the following attributes to the entity for the remaining text box widgets:
- Phone [String]
- Birthday [Date and Time]
- Bio [String]
Go the Design properties category and toggle the Full Width property for the Save and Cancel buttons to improve the user experience:
3.7 Using the Google Maps widget
You can easily add rich widgets to your pages to greatly benefit the user experience.
To add the Google Maps widget to the page, follow these steps:
On the Employee page, open the Toolbox, make sure Widgets is selected, and search for the Google Maps widget:
Drag the Google Maps widget from the Display properties category onto the page below the Bio text box.
The Google Maps widget requires an Address attribute or both the Latitude attribute and Longitude attribute. So, search for “Text” in the Toolbox and drag the additional Text Box widget above the map.
Connect the new text box to a new attribute named Address:
Select the Google Maps widget, open the Data source properties category, and do the following:
a. Set the Locations Entity to Employee.
b. Set the Address Attribute to Address.
3.8 Connecting the List View On Click to a Page
The last thing you have to do is finish up the employees page. To connect a list view to this page, follow these steps:
Open the Employees page and then select the LIST VIEW:
Set the On Click Action to Page and select the Employee page (like you did for the Add button).
You’re done! Time to view the effects of all your changes.
4 Viewing Your App
Update and view your app, just like you did in Step 3: Publish and View Your App.
You can now use your app to add and edit employees!
Continue on to the last part of this tutorial: Step 5: Promote an Employee.