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如何在数据窗口(datawindow)中用enter代替tab

如何在数据窗口(datawindow)中用enter代替tab在字段间移动

document:

programming the enter key to move between columns in a datawindow

　　general comments: the technique described below works fine in pb 5. the changes required are due to: 

(1) setactioncode() function made obsolete in pb 5.0 - we need to use events return codes instead.
(2) pb 5.0 new syntax to access the value of attributes in dw - instead of using describe() we can referenced the attribute directly. 

　　description: how to change the enter key to act like a tab key.
　　solution: to have the enter key act like a tab key, create a user event to correspond with the pbm_dwnprocessenter event on a datawindow. in that user event, add the following 2 lines:

　　pb 5.0 method

　　send(handle(this),256,9,long(0,0)) // send message for processing tab key
  　return 1  // ignore processing of enter key 

example
// the following example does an accepttext.  if it gets a negative
// return code, then there was an error on the column, and you bypass
// the enter processing, and do not send the message for the tab key.
//
// it then checks to see if the current row and column are the last in
// the datawindow.   if they are, it inserts a new row, scrolls to it,
// and sets the column to the first column in the row.
//
// if it is not the last row and column, it sends the tab key message,
// and bypasses the enter key processing.
//
// note: this script is in the user-defined event for pbm_dwnprocessenter. 

if this.accepttext() < 0 then
  return 1
end if

if this.getcolumn() = long(dw_1.object.datawindow.column.count) then
 if this.getrow() = this.rowcount() then
   this.insertrow(0)
   this.scrolltorow(this.getrow() + 1)
   this.setcolumn(1)
   return 1
 end if
end if

　　send(handle(this),256,9,long(0,0))
　　return 1  

　　pb 4.0 method

　　send(handle(this),256,9,long(0,0))
　　dw_1.setactioncode(1)
                 __-----> change this to whatever you called your
                          datawindow.

　　this will send the windows message for the tab key, and will bypass the processing for the
　　enter key. 

 example
// the following example does an accepttext.  if it gets a negative
// return code, then there was an error on the column, and you bypass
// the enter processing, and do not send the message for the tab key.

 

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