VB.NET + GetEntity

Hi. I'm trying to grab a dimension via GetEntity so I can pull some info off of it, for use in my program. Here's the code:

Dim p As Object
Dim olddim As Autodesk.AutoCAD.Interop.Common.AcadDimension
Try
Dim utils As AcadUtility = CType(CType(Autodesk.AutoCAD.ApplicationServices.Application.AcadApplication, AcadApplication).ActiveDocument.Utility, AcadUtility)
utils.GetEntity(olddim, p, "Pick the Dimension")
Catch
End Try

It just doesn't seem to be able to catch errors that occur when you click somewhere and don't select an object. Any ideas?

 

Here is what I use to select a Detail Balloon.

Dim ReturnBall As Object
Dim BasePt(2) As Double

Retry:
acadUtl.GetEntity(ReturnBall, BasePt, "Select a Balloon")
If ReturnBall.EntityName <> "AcDbCircle" Then
AppActivate("Ball-n-Stock")
MessageBox.Show("You must select a Balloon", "Ball-n-Stock", MessageBoxButtons.OK, MessageBoxIcon.Information)
AppActivate(ACADApp.Caption)
GoTo Retry

 

On Wed, 20 Oct 2004 23:51:50 GMT, Elscimar wrote:
If you code is exactly as you have it here, it doesn't do anything because
you haven't told it what to do. Read up on the Try..Catch loop it should
look like this:

Try
utils.GetEntity(olddim, p, "Pick the Dimension")
Catch
Messagebox.ShowDialog("Didn't pick anything")
End Try

You can also catch specific errors by having mulitple catches

-- Mike
___________________________
Mike Tuersley
CADalyst's CAD Clinic
Rand IMAGINiT Technologies
___________________________
the trick is to realize that there is no spoon...

 

D'oh. I was under the (obviously mistaken) impression that just having the Catch there would cause it to supress the popup.