Evaluating an expression described in a string?

[Ditchit]

Anyone know how I can do this? No eval function in VB.Net unfortunatley

Dim strExpression As string = "itemsPurchased>5
If eval(strExpression) The
giveDiscount(
End If

[Michael Giagnocavo [MVP]]

DataViews allow you to provide a filter and sort expression.

Otherwise you need to look into parsing it yourself (perhaps a 3rd party
component), or .NET Scripting, or something similar.
-mike
MVP

"Ditchit" <an*******@discussions.microsoft.com> wrote in message
news:36**********************************@microsof t.com...

Anyone know how I can do this? No eval function in VB.Net unfortunatley.

Dim strExpression As string = "itemsPurchased>5"
If eval(strExpression) Then
giveDiscount()
End If

[Uri Dor]

it's not so straightforward, but you can look up
Microsoft.VisualBasic.VBCodeProvider in MSDN - you can CreateCompiler()
with which you can compile a VB assembly. the rest is code generation
- I've done it with C#

Ditchit wrote:

Anyone know how I can do this? No eval function in VB.Net unfortunatley.

Dim strExpression As string = "itemsPurchased>5"
If eval(strExpression) Then
giveDiscount()
End If

[Uri Dor]

it's not so straightforward, but you can look up
Microsoft.VisualBasic.VBCodeProvider in MSDN - you can CreateCompiler()
with which you can compile a VB assembly. the rest is code generation
- I've done it with C#

Ditchit wrote:

Anyone know how I can do this? No eval function in VB.Net unfortunatley.

Dim strExpression As string = "itemsPurchased>5"
If eval(strExpression) Then
giveDiscount()
End If