QED MD - Print Effects - Effect Usage Types

Each Print Effect can have many Usage Types which dictate at what point in a QED Report or XML Data Group they will become active.

The XML Data Group Usages (mentioned only for completeness) are:

DATA_BLOCK - The Data Block Level
DATA_GROUP - The Data Group Level
DATA_LINE - The Data Field and Description Level
DATA_NAME - The Data Field Description Only Level

The QED Report Usages are:

FIELD - The Report Line Field Level
FIELD_HEADER - A Table Column Header Level
LINE - The Report Line Level
PAGE - The Pages except the first Page level
PAGE1 - The First Page Only Level.
REPORT - The Report Level

The special Usage is:

SKIN - Skin Effect (referenced from other Effects)

So the Structure of most reports Effects being executed is;

REPORT prefix

PAGE1 prefix (1)

LINE prefix (*)

FIELD_HEADER prefix (*)

FIELD_HEADER suffix

FIELD prefix (*)

FIELD suffix

LINE suffix

PAGE1 suffix

PAGE prefix (*)

LINE prefix (*)

FIELD_HEADER prefix (*)

FIELD_HEADER suffix

FIELD prefix (*)

FIELD suffix

LINE suffix

PAGE suffix

REPORT suffix

Therefore each report consist or a single PAGE1 with lines and fields and then multiple ordinary pages also with lines and fields.

Each line consists for Fields which are processed twice. The first time all FIELD_HEADER effects are processed and the second time the FIELD effects are processed. FIELD_HEADER effects are necessary for those presentation languages (e.g. Rich Text Format) when Table rows are being used each column needs to be defined first (e.g. its size) and then populated later. Therefore FIELD_HEADER effects are not necessary for the HTML protocol.

The SKIN usage is a special type of Effect containing default parameter values which allow the skin processing to operate. The defined SKIN effects are detailed later.

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