Defining scrollgrid in the layout

Define scrollgrid views in the LAYOUT section of the form definition file.

Designing scrollgrid views

The scrollgrid rows are defined as a template within an area delimited by curly brackets.

This is an example of a resizable scrollgrid definition using the SCROLLGRID layout item. It is resizable because it has no fixed page size (WANTFIXEDPAGESIZE=NO). Only one template is needed to define the records.

The position of the item tags is detected by the form compiler to build the scrollgrid. Item types (widget to be used) and behavior are defined with form items in the ATTRIBUTES section.

LAYOUT
SCROLLGRID (WANTFIXEDPAGESIZE=NO)
{
 Id:   [f1    ]
 Name: [f2           ][f3           ]
}
END
END
...
ATTRIBUTES
EDIT f1 = customer.cust_num;
EDIT f2 = customer.cust_fname, 
EDIT f3 = customer.cust_lname;
...

You can also define SCROLLGRID layout tags inside a GRID container, beside other layout tags:

LAYOUT
GRID
{
<SCROLLGRID sg1                      >
 Id:   [f1    ]
 Name: [f2           ][f3           ]
...
}
END
END

ATTRIBUTES
SCROLLGRID sg1: scrollgrid1,
  WANTFIXEDPAGESIZE=NO,
  GRIDCHILDRENINPARENT;
...

Important: Avoid Tab characters (ASCII 9) inside the curly-brace delimited area. If used, Tab characters are replaced with 8 blanks at compilation with fglform.

Height of scrollgrid rows

The height of scrollgrid rows can be defined within a grid-based layout by adding empty tags underneath (this makes sense only when using widgets that can get a height such as TEXTEDIT or IMAGE).

In this example, the height of the image item type is defined by the number of rows in the layout section (6 in our example).

LAYOUT
SCROLLGRID (WANTFIXEDPAGESIZE=NO)
{
 Icon [name        ] Index[index ]
 [img                            ]
 [                               ]
 [                               ]
 [                               ]
 [                               ]
 [                               ]
}
END
END
ATTRIBUTES
EDIT name = FORMONLY.name;
IMAGE img = FORMONLY.img, autoscale;
EDIT index = FORMONLY.index;
END
...

Defining the rendering type of the scrollgrid

The scrollgrid can be configured to be fixed page size or resizable, depending on requirements or the supported platform:

To define a scrollgrid with a fixed page size, omit the WANTFIXEDPAGESIZE=NO attribute. The number of visible rows is defined by the number of row templates in the form layout.
To define a resizable scrollgrid, the WANTFIXEDPAGESIZE=NO is set in the layout to allow the container to stretch vertically. Only one record row template needs to be defined. Then define the initial number of scrollgrid lines with the INITIALPAGESIZE form definition attribute.
To render a scrollgrid as a paged responsive tile list, the customWidget presentation style is defined and the WANTFIXEDPAGESIZE=NO scrollgrid attribute is used.

For more details, see Controlling scrollgrid rendering.