Visual Basic&database, Is there an Eval function in VB?

Is there an Eval function in VB?

Author	Message
Elina Syritzido #1 / 4	Is there an Eval function in VB? There is an "Eval" function in the Visual Basic which is embedded in MS Access, but this function doesn't exist in pure Microsoft Visual Basic. It's a very useful function, that can take any input and evaluate it. For example, in result=Eval(3+2) result has the value 5, but Eval can also evaluate other FUNCTIONS! result=Eval("finddate()") result has the value returned by finddate() Does anyone know a function in pure VB that can do that? (I can't use result=finddate() because "finddate()" is a string found through a query in a field of a table (this field keeps names of functions) Any ideas are welcome... Thanks, Elina
Tue, 27 Aug 2002 03:00:00 GMT

Oscar Bowye #2 / 4	Is there an Eval function in VB? Elina, VB has a CallByName method that may suite your needs. You might want to check the doc's to see if there are any restrictions for the types of methods you can call with this. Oscar Bowyer Quote: >There is an "Eval" function in the Visual Basic which is embedded in MS >Access, but this function doesn't exist in pure Microsoft Visual Basic. It's >a very useful function, that can take any input and evaluate it. For >example, in >result=Eval(3+2) >result has the value 5, but Eval can also evaluate other FUNCTIONS! >result=Eval("finddate()") >result has the value returned by finddate() >Does anyone know a function in pure VB that can do that? >(I can't use >result=finddate() >because "finddate()" is a string found through a query in a field of a table >(this field keeps names of functions) >Any ideas are welcome... >Thanks, >Elina
Wed, 28 Aug 2002 03:00:00 GMT

Elina Syritzido #3 / 4	Is there an Eval function in VB? Oscar, It was close to what I needed, but not perfect... I'll try to avoid this function and change my code... thanks a lot anyway :) Elina Quote: > Elina, > VB has a CallByName method that may suite your needs. You might want to > check the doc's to see if there are any restrictions for the types of > methods you can call with this. > Oscar Bowyer
Wed, 28 Aug 2002 03:00:00 GMT

Wayne S. Freez #4 / 4	Is there an Eval function in VB? Try adding the VBScript control to your program. You can execute a single statement or a complex script program. It's not installed with VB6, but hidden in one of the tools or unsupported directories on the installation CDs. ..........Wayne Check www.JustPC.com for my books on VB, SQL and other topics. Quote: > There is an "Eval" function in the Visual Basic which is embedded in MS > Access, but this function doesn't exist in pure Microsoft Visual Basic. It's > a very useful function, that can take any input and evaluate it. For > example, in > result=Eval(3+2) > result has the value 5, but Eval can also evaluate other FUNCTIONS! > result=Eval("finddate()") > result has the value returned by finddate() > Does anyone know a function in pure VB that can do that? > (I can't use > result=finddate() > because "finddate()" is a string found through a query in a field of a table > (this field keeps names of functions) > Any ideas are welcome... > Thanks, > Elina
Wed, 28 Aug 2002 03:00:00 GMT

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