2. Setting

Worked Example

Unhide string form field, StudentIDFromAttendees.

Lookup to Retrieve Data

We will create an Actionflow containing a Calculate Action and a View Lookup Action. The Calculate Action will allow the input data to pass through into the View Action where it will be used to lookup to the Course Attendees table to find the students attending the courses. To do this it we will:

• lookup using the Course ID, which is found on both the Course and Attendees tables
• use the Course ID on the Attendees table to find the corresponding Student ID(s) of the students attending that course
• Write those Student ID(s) back to the screen onto a field
• Setup a background filter that only show students in a Students grid that match the Student ID in the field

Create Calculate Action and View Action

1. Add a button to the Tile - Footer area beneath the school courses grid
   1. Name: Enrolled Students
2. Right-click on the button and choose  Add Actionflow
3. Enter a name for the Actionflow,
   1. Name: Find Students
   2. Select Confirm
4. Select Click to Connect and for the input, choose the School Course  Grid data source, then select Connect Input
5. In the Mappings window that opens, drag the CourseID attribute from the left to the right
   1. Select Save
6. Click and drag the  Calculate icon from the toolbar onto the canvas
7. In the Create Calculate Action window enter:
   1. Name: FindStudents

   2. Select Create Action

      The Calculate Action will be configured below as it is needed for the output. For the input data, the attributes pass through without being processed.

8. Click and drag the  icon onto the  Calculate action node
9. Right-click on the in connector and choose  Open Mappings
   1. Drag the CourseID attribute on the left onto the Drag and Drop area on the right
   2. Select Save
10. To lookup to the Course Attendees table, we need to create a View Action
11. Click and drag the   View icon from the toolbar onto the canvas
12. In the Create View Action window enter:
    1. Name: GetStudentID
    2. Primary Table: choose the Course Attendees data

    3. Select Create Action

Configure the Lookup on the View Action 

1. Hover over the calculate action and select 
2. Enter a name for the lookup connector:
   1. Name: lu
   2. Select Confirm
   3. When the red arrow shows, click on the View Action on the canvas
3. Select the View Action on the canvas to open the properties
4. In the Output Attributes section, click on the  icon 
   1. In the Available Attributes window, drag StudentID into the Output Attributes section of the properties
   2. Click OK
5. Select the lu connector to map the incoming and outgoing data
6. For the Incoming Mappings:
   1. Drag the CourseID attribute from the left (Calculate Action) into the Drag and Drop area on the right to create a corresponding attribute in the View Action
   2. Select Next
7. For the Outgoing Mappings:
   1. Drag the StudentID attribute from the left (View Action) to the Drag and Drop area on the right to create a corresponding attribute back to the Calculate Action
   2. Right-click on the StudentID attribute you just created and rename it
      1. 
8. Click Confirm
9. We need to filter the data coming out of the lookup 
10. Click on the View Action to open its properties
11. In the Data Retrieval Options section, click the  icon next to Filter
    1. Name: ByCourseID
    2. Filter Details: 
    3.  Apply and Close the Filter tab
12.  Apply the View Action tab

Configure the Calculate Action

Setup Background Filter