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This may be a bug testing image fields and variables. Please advise?

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  • This may be a bug testing image fields and variables. Please advise?

    Any and all help is appreciated! Thanks in advance!
    dim global vstimg4 as c ="x"
    dim global vstimg3 as c ="x"
    dim global vstimg2 as c ="x"
    dim global vstimg1 as c ="x"
    var->vstimg4 = parentform:Img4.value
    var->vstimg3 = parentform:Img3.value
    var->vstimg2 = parentform:Img2.value
    var->vstimg1 = parentform:Img1.value

    I have declared 4 global variables( so I could see easy for testing. The idea is to read the four image(png) fields to see if anything is there. I can only get 3 fields and 3 variables in the read out whether empty or no. Img 2 is blank as it should be. Xbasic is being cal from on depart of image field. image field 4 is not in the variable list at all(biggest problem)
    Dave Mason
    [email protected]
    Skype is dave.mason46

  • #2
    Re: This may be a bug testing image fields and variables. Please advise?

    A jpg/jpeg/png field's form object value is binary data. Not sure you can test that way.

    Try this button code. (Alter to suit your situation.)

    tst = parentform:img.value
    Last edited by Stan Mathews; 01-12-2015, 05:58 PM.
    There can be only one.


    • #3
      Re: This may be a bug testing image fields and variables. Please advise?

      Actually it does test that way since I am only testing for the existence of anything.

      Oddly the variables are there and they are working, but do not show in the global variable viewer.

      I have an image in img 1 and img 4

      = ‰PNG
      = ""
      = ""
      = ‰PNG
      It has to be abug in the reader. No big deal Wonder if I should report it??

      I went ahead and reported it. It is a small bug, but cost me a couple hours of extra work and could save someone else more.
      Last edited by DaveM; 01-12-2015, 06:14 PM.
      Dave Mason
      [email protected]
      Skype is dave.mason46


      • #4
        Re: This may be a bug testing image fields and variables. Please advise?

        To help anybody else needing to do this(an I am sure there are better ways) Here is the complete code I needed for the process. It counts the images(max is 4) and sets a counter field for the actual amout starting with 1 then 2. If they skip one of the image fields, it will not count the next field if there is one. Using this when you read an empty img field that is empty it gives "" and if it has something in it gives "%.png"

        dim shared vstimg4 as c =""
        dim shared vstimg3 as c =""
        dim shared vstimg2 as c =""
        dim shared vstimg1 as c =""
        dim shared timg1 as L = .f.
        dim shared timg2 as L = .f.
        dim shared timg3 as L = .f.
        dim shared timg4 as L = .f.
        dim vidnum as n
        dim t as P
        'read the id_num field from form
        var->vidnum = parentform.id_num.value
        dim vmode as n
        t = table.get("stuccoimg")  
        vmode = t.mode_get()
        		case vmode = 0
        		case vmode = 2
        	end select
        dim shared nimages as n
        '-----------------------------------------Getting values from image fields
        var->vstimg4 = parentform:Img4.value
        var->vstimg3 = parentform:Img3.value
        var->vstimg2 = parentform:Img2.value
        var->vstimg1 = parentform:Img1.value
        if var->vstimg1 <> "" then
        	var->timg1 = .t.
        end if
        if var->vstimg2 <> "" then
        	var->timg2 = .t.
        end if
        if var->vstimg3 <> "" then
        	var->timg3 = .t.
        end if
        if var->vstimg4 <> "" then
        	var->timg4 = .t.
        end if
        select  'setting the number of images
        	case var->timg4 = .t. .AND. var->timg3 = .t. .AND. var->timg2 = .t. .AND. var->timg1 = .t.
        		var->nimages = 4
        	case var->timg4 = .f. .AND. var->timg3 = .t. .AND. var->timg2 = .t. .AND. var->timg1 = .t.
        		var->nimages = 3
        	case var->timg4 = .f. .AND. var->timg3 = .f. .AND. var->timg2 = .t. .AND. var->timg1 = .t.
        		var->nimages = 2
        	case var->timg4 = .f. .AND. var->timg3 = .f. .AND. var->timg2 = .f. .AND. var->timg1 = .t.
        		var->nimages = 1
        	case var->timg4 = .f. .AND. var->timg3 = .f. .AND. var->timg2 = .f. .AND. var->timg1 = .f.
        		var->nimages = 0
        end select
        t.howmany = var->nimages ' posting to the needed table
        Dave Mason
        [email protected]
        Skype is dave.mason46