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z/OS Block Mode Screen Design › Error Processing › Extended Attributes

Extended Attributes

When the target device supports extended attributes and the SA order is not suppressed, errors in an input string are indicated by changing the characters to the defined error characteristics. When error characteristics and normal characteristics are incompatible, the two are merged and the error characteristics are dominant. Data in the field that is not in error is displayed using as much of the normal characteristics as possible.

In the following table, which shows error display processing for extended attribute support, the field contents are shown both for valid and invalid data.

Normal Characteristics

Error Characteristics

Valid Data

Invalid Data

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

Red, Not Protected, Displayable, Not Selectable, MDT, Alphanumeric Shift, Reverse Video

2002/01/12

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

2002/13/12

Field: Blue, Not Protected, Displayable, Not Selectable, MDT, Alphanumeric Shift, Normal Highlighting.

Characters “13”: Red, Reverse Video

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

Red, Protected, Displayable, Not Selectable, MDT, Alphanumeric Shift, Reverse Video

2002/01/12

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

2002/13/12

Field: Blue, Protected, Displayable, Not Selectable, MDT, Alphanumeric Shift, Normal Highlighting.

Characters “13”: Red, Reverse Video

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

Red, Protected, Not Displayable, Not Selectable, MDT, Alphanumeric Shift, Reverse Video

2002/01/12

Blue, Not Protected, Displayable, Not Selectable, No MDT, Alphanumeric Shift, Normal Highlighting

XXXXXXXXXX

Field: Blue, Protected, Not Displayable, Not Selectable, MDT, Alphanumeric Shift, Normal Highlighting.