About HTML Containers
A key concept in the design process is the container. A container
is an HTML entity, defined in the code with starting and ending tags, that
contains or surrounds other entities on the page. Sometimes they actually
appear on the page and sometimes they don't. Containers can be used to
limit the size of parts of the report page, to apply style to their
contents, to isolate part of the page from other parts, etc. A variety of
Logi elements are containers, and the parent-child element relationships
found in Logi Studio often identify them.
In the example above, the Division element is the outer container for all of the other elements; the Data Table contains the datalayer and the Data Table Column, and the Data Table Column contains the Label element. As mentioned earlier, through inheritance CSS style applied to a container is generally applied to all the items it contains.
In a Logi app page, containers are the
geographic building blocks of the page. Successful Logi developers
begin report development by visualizing the desired end result and
breaking it down into these building blocks, which then dictate the report
layout.
Responsive Design Elements
Responsive Design elements, including Responsive Row and
Responsive Column, may provide an improved
viewing experience. They can automatically change their size and
arrangement depending on the device screen size. This is very helpful when
designing applications to be seen on a variety of devices, from desktops
to smart phones. See
Responsive Design Elements
for more information about these elements.
Using a Master Report
The Master Report concept, introduced in v12.1, provides a special report that contains elements that are to be included in other reports. One common use is to define a Master Report with a header, a horizontal or left Side Bar menu, and a footer. Regular report definitions then reference the Master Report and, at runtime, the two are merged together. Logi Studio includes a Master Report Layout wizard that can be used to quickly generate a Master Report and this is a great way to design your application. More information is available in Master Reports.