PUTOVR

Category
Screen Building
Additional information
PUTOVR is a record-level keyword used with OVRATR or OVRDTA to permit the override of either display attributes or data contents (or both) of specific fields. By using PUTOVR, you can reduce the amount of data sent to the 5250 display device.  In WebFacing, all fields are sent to the Web browser whenever a page is displayed and WebFacing does not support the partial update of a Web page.  As a result, there is no performance gain by using PUTOVR in WebFacing.  The keyword is not supported by WebFacing and will be ignored, so your application may not work the same as 5250. For example, on 5250 the output operation of a record with PUTOVR in effect will only update the PUTOVR record (i.e., update the fields with OVRATR or OVRDTA in effect).  Any existing records on the display will remain untouched.  However, when the same output operation is executed in WebFacing, any existing records on the display will be removed if OVERLAY is not specified on the PUTOVR record.  To avoid existing records being removed from the display, you can add the OVERLAY keyword on the record which has PUTOVR specified.

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