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Browse Column Titleclick Event

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  • Browse Column Titleclick Event

    I should probably put this in the v9 forum since this feature is that old - and still no decent help available...either in the Wiki or here.

    I have a couple of uses for this feature - One is to click on the column title of a logical checkbox field and either select or unselect all the records currently displayed in the browse (filtered); the other is to prompt the user for text to change the field values in the column. About all I have been able to accomplish is to have the event push a button that runs a script that does an update on the table.

    Has anyone got something better that actually shows how I might use this feature?
    Robin

    Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

  • #2
    Re: Browse Column Titleclick Event

    If you want to filter by .T. or .F. , just select the check box on the form, right click, select "Filter For" and then select "True" or "False" and then "OK".

    At least that is what I think you are asking.

    Comment


    • #3
      Re: Browse Column Titleclick Event

      No, I want to change the records in a filtered browse for the column field the titleclick event is defined for.

      Code:
      FUNCTION Cx_Embrws AS C (ColObjName AS C, FldVal AS C = "" )
      'DESCRIPTION: Use in Titleclick Event for Embedded browse to change column value	
      	if FldVal = "" then
      		FldVal = ui_get_text("Change Column Records","New Value: ")
      		if FldVal = "" then
      			RESPONSE = msgbox("Confirm Blank Value","Do you want to set the field to blank?",35)
      			if response = 7 then
      				'user cancelled
      				goto ENDIT
      			end if
      		end if
      	end if
      	dim brws_name as c
      	dim tbl as p
      	dim frmname as c
      	dim tblname as c
      	dim vn as n = 0
      	dim commit_flag as L = .f.
      	
      	brws_name = this.active()	'Browse1
      	frmname = topparent.Name()
      	tbl = eval(brws_name+".table_get()") 
      	tblname = tbl.name_get()	'returns child table name for browse1
      	vn = tbl.records_get()		'should get count in current query	
      	
      	commit_flag = .t.	
      	tbl.fetch_first()
      	while .not. tbl.fetch_eof()
      		on error goto ERRMSG
      		tbl.change_begin()
      		on error goto 0
      			evaluate_template(tbl+".ColObjName = "+quote(FldVal))		
      		tbl.change_end(commit_flag)
      		tbl.fetch_next()
      	end while
      		
      	eval(brws_name+".refresh()")
      	eval(brws_name+".fetch_first()")
      	msg = eval(frmname+":"+brws_name+":"+ColObjName+".value = "+FldVal)
      	Tln("Updated",msg)
      	Cx_Embrws = "Updated: "+msg
      	
      	end	
      	ERRMSG: 
      	commit_flag = .f.
      	script_play("ERRMSG")
      	on error goto 0
      	RESUME NEXT
      	
      	end
      	ENDIT: 
      	Cx_Embrws = "Cancelled"
      END FUNCTION
      'Ex1:  Cx_Embrws("MACHNO") script will prompt user for new FLDVAL
      'Ex2:  newfldval = ui_get_text(...)
      	  'Cx_Embrws("MACHNO",newfldval)
      Attached Files
      Last edited by MoGrace; 01-19-2015, 09:30 PM.
      Robin

      Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

      Comment


      • #4
        Re: Browse Column Titleclick Event

        I pulled the script out of the function and placed it in the titleclick event. My first problem is that 'this.active()' returns the active column object name and not the browse object name.

        Now how do I get that...?

        Edit:
        In the IW
        col_act = this.active(.t.)
        =":Select_Tags:Browse1"
        brws_name = word(col_act,3,":",1) 'Browse1

        In the trace window I am getting the proper values including the table name for the browse - however the tbl.change_begin() section is doing nothing. There must be another approach I am missing here...
        Last edited by MoGrace; 01-19-2015, 10:40 PM.
        Robin

        Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

        Comment


        • #5
          Re: Browse Column Titleclick Event

          Evaluate_template() doesn't complain if the command supplied is incorrect.

          evaluate_template(tbl+".ColObjName = "+quote(FldVal))

          looks like to me it should be

          evaluate_template("tbl."+ColObjName+" = "+quote(FldVal))

          or

          eval("tbl."+ColObjName) = fldval
          There can be only one.

          Comment


          • #6
            Re: Browse Column Titleclick Event

            Thanks Stan, I'll try that. I had it backwards from the msg string... ;)
            Robin

            Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

            Comment


            • #7
              Re: Browse Column Titleclick Event

              The way I try to remember it.........

              Expression as C - means you should be able to ? it in the interactive.


              Code:
              ColObjName = "cost" 'for example
              FldVal = "18.99" 'likewise
              
              
              
              ? tbl+".ColObjName = "+quote(FldVal)
              ERROR: Variable "tbl" not found.
              ? "tbl"+".ColObjName = "+quote(FldVal) 
              = tbl.ColObjName = "18.99"
              
              ? "tbl."+ColObjName+" = "+quote(FldVal)
              = tbl.cost = "18.99"
              There can be only one.

              Comment


              • #8
                Re: Browse Column Titleclick Event

                I thought I had but apparently not! Anyway getting the active object using 'this.active()' did not work as expected but 'topparent.active()' did. So those two changes plus adding a tbl.batch_begin() and tbl.batch_end() to the table change section made it work just as I hoped. Now I have a generic script I can add to the titleclick event when a queried group of records needs to be changed.

                In this case it was to reassign machine numbers or add a cutline to a group of production tickets. In this example on a set based form, it worked when the browse was the primary table - still need to see if it will work on a child table...

                Thanks again.
                Last edited by MoGrace; 01-20-2015, 04:18 PM.
                Robin

                Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                Comment

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