7. Designer Context Blocks
The designer context blocks are primarily responsible for putting data into the global context so that they can be referenced by the application blocks or NAV.
The following sections will outline each available context and provide a brief example of how the block can be used.
Using the Selected Line
The “Using the Selected Line” block is intended for applications that are displaying a data grid (or card panel). This block will take the currently selected line (or panel) and will add each column from the underlying dataset to the context. Variable names will match the column name.
Using the Selected Line Example
Provided below is an example of using the “Using the Selected Line” block. The application loads an item list of data and once loaded displays a message indicating the selected item number.
Application Designer:
Using the Document Header
The “Using the Document Header” block is intended for applications that are displaying a data grid (or card panel). This block will take the current document data “header” information and add each column from the dataset to the global context. Variable names will match the column name.
Using the Document Header Example
Provided below is an example of using the “Using the Document Header” block. The application loads a warehouse receipt document and once loaded displays a message indicating the receipt document number.
Application Designer:
Using the PDA Configuration
The “Using the PDA Configuration” block pushes all the NAV PDA Configuration options into the global context so they can be referenced as needed. In addition, information concerning the current location is also made available (bins mandatory, require picks, etc.)
Using the PDA Configuration Example
Provided below is an example of using the “Using the PDA Configuration” block.
Application Designer:
Using the Last Scanned Barcode
The “Using the Last Scanned Barcode” block pushes the last barcode data into the global context. The context that is created depends on the type of barcode and are listed below. Typically, this block is used when responding to a barcode scan event (See Designer Events for more information).
Barcode Context:
| Barcode Type | Context Created |
|---|---|
| License Plate |
|
| Document |
|
| Bin |
|
| Text |
|
| Tag |
|
| LP Template |
|
| Location |
|
| Item |
|
Using the Last Barcode Scanned Example
Provided below is an example of using the “Using the Last Barcode Scanned” block to display some information about the item scanned.
Application Designer:
