PM30774: RUI designer is so slow when having a big form

APAR status

• Closed as program error.

Error description

• environment Windows XP
  Rational Business Developer 801
  
  Description:
  when you have a big RUI form, it is too slow in the RUI designer
  that could crash.
  And if you try to test , internet explorer will say that the
  script will slow the machine, and asks if you want to continue
  or not.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a GridLayout has too many children, the Visual Editor
  will perform very slowly, and the page will also perform
  slowly in production env.
  

Problem conclusion

• The performance bottleneck is the layoutData, each child of
  a layout widget, such as GridLayout, will cause its parent
  to refresh/re-layout when its layoutData is set.
  
  Now using a Timer to collect the refresh/re-layout request
  from the children in a short period, and do the
  refresh/re-layout just one time. This can reduce the
  refresh/re-layout times to improve the performance.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  RATL BUS DEV

• Fixed component ID

  5724S5000

Applicable component levels

• R801 PSN

     UP