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Aug 30th, 2006
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Issues with check boxes

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As far as I know when a check box is check the value should be 1 and when it is not checked it should be 0 correct?

In my case if I don't check the box its null and if I do its -1

Here is my code

Visual Basic 4 / 5 / 6 Syntax (Toggle Plain Text)
  1. Private Sub AddGeneral()
  2. Dim rsAdd As Recordset
  3. Dim sql As String
  4.  
  5.     If (chk1.checkstate = 1 And chk2.checkstate = 1) Then
  6.         Kidney = "Both"
  7.         MsgBox "Checked"
  8.     ElseIf (chk1.Value = 1 And chk2.Value = "") Then
  9.         Kidney = "Self"
  10.     ElseIf (chk1.Value = "" And chk2.Value = 1) Then
  11.         Kidney = "Family"
  12.     Else
  13.         Kidney = ""
  14.     End If
  15.  
  16.     If (chk3.Value = 1 And chk4.Value = 1) Then
  17.         Head = "Both"
  18.     ElseIf (chk3.Value = 1 And chk4.Value = 0) Then
  19.         Head = "Self"
  20.     ElseIf (chk3.Value = 0 And chk4.Value = 1) Then
  21.         Head = "Family"
  22.     Else
  23.         Head = ""
  24.     End If


now i put -1 for the values and it worked but if i didnt check them some were 0 and some were null
if i have both check boxes checked it works
returns -1 for both
but if i just check one of the boxes it returns -1 and Null

ive tried -1 and Null, -1 and "", -1 and 0
Last edited by Stewie; Aug 30th, 2006 at 12:59 pm.
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Aug 30th, 2006
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Re: Issues with check boxes

I can't really tell by your code, but is this VB express, .NET, or Legacy (VB 4, 5, or 6)? If it's Legacy VB, could you attach the project in a .zip to your next post, so that I can download your code, and see your problem. The truth is, I can't even replicate your error. I'm guessing, since vb6 doesn't have a .checkstate property for checkboxes, that it's not VB6. Something to check, and I see (based on your question) why you would have done this, but you are testing the checkboxes .value property against an empty string (""). Something to consider, would be testing against vbnull or vbnullstring.
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Aug 31st, 2006
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Re: Issues with check boxes

I was actually able to get the issue solved.
Thanks
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Re: Issues with check boxes

What was the solution? That way, should this problem arise again, we can have the fix available?
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