View Full Version : EVal function in Excel VBA
pannai
03-15-2007, 02:02 AM
Hi
 I want to know if Eval function available in Excel VBA?
 
I want to evaluate values like below
 st= "0>=15 or 0>=10"
 
 
Thanks
Check out the Evaluate function.
 
What are you expecting your example to evalute to? As it stands it won't work.
Norie
03-15-2007, 11:14 AM
Why do you need a function?
What exactly should that evaluate to?
mdmackillop
03-15-2007, 11:49 AM
Sub eval()
Dim st As Boolean
st = 0 >= 15 Or 0 >= 10
MsgBox st
st = 20 >= 15 Or 0 >= 10
MsgBox st
End Sub
pannai
03-15-2007, 09:18 PM
Hi
 Actualy the expression is not a direct value. I am building the expression by checking various conditions and create the expression as string value.
 
for e.g, after various validations, my expression will be like below
 
  ep="0>15 or 0>10"
 
now I want to execute the above expression,
 
 if (ep)
 {
   do something
}
else
{
  do otherthing
}
 
since ep is a string, it gives error in "if". for this scenario VBScript has Eval function which will evaluate the string expression and return the value.
But VBA doesn't have Eval function.
mdmackillop
03-16-2007, 01:18 AM
Sub eval()
    Dim st As String
    st = "=or(0 >= 15, 0 >= 10)"
    MsgBox Evaluate(st)
    st = "=or(0 >= 15, 20 >= 10)"
    MsgBox Evaluate(st)
End Sub
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