how to work in differet Autocad version?

[Anonymous]

hi everybody. i used C# with activex in autocad2016. how to depeloy to different autocad version?

[_gile · Accepted solution]

Hi,

To overcome the COM / ActiveX API versions dependency, a simple way is to use late binding with the 'dynamic' type (requires .NET Framework 4.0 or later).

When you think your app is ready to be deployed, make a bakup by copying the whole solution.

In the deployment solution, remove all references to the COM / ActiveX libraries, all using directive to Autodesk.AutoCAD.Interop and Autodesk.AutoCAD.Interop.Common.

Then correct all unknown type errors by replacing COM types with dynamic.

e.g. replace:

AcadApplication acadApp = (AcadApplication)Application.AcadApplication;
AcadDocument acDoc = acadApp.ActiveDocument;
AcadModelSpace modelSpace = acDoc.ModelSpace;

with:

dynamic acadApp = Application.AcadApplication;
dynamic acDoc = acadApp.ActiveDocument;
dynamic modelSpace = acDoc.ModelSpace;  

[Anonymous]

hi

like this one how to replace?

AcadMLeader myMLeader;

myMLeader.TextRightAttachmentType = AcTextAttachmentType.acAttachmentBottomOfBottom;

i replace them like this:

dynamic myMLeader;

myMLeader.TextRightAttachmentType = AcTextAttachmentType.acAttachmentBottomOfBottom;

but AcTextAttachmentType.acAttachmentBottomOfBottom is error. how to replace by dynamic?

[_gile]

Hi,

As you certainly know each item in a enumeration (AcTextAttachmentType is a n enum) has an integer value. You can use this integer value instead of the enum item name.

You can get the enum integer values (and replace them) before removing COM references with the inellisense (or the object browser):

so, replace:

AcadMLeader yourMLeader;

yourMLeader.TextRightAttachmentType = 
    AcTextAttachmentType.acAttachmentBottomOfBottom;

with:

dynamic yourMLeader;

yourMLeader.TextRightAttachmentType = 6;

[Anonymous]

hi,

it is good! i want to use yourMLeader.TextRightAttachmentType = 6; in early binding, because it is easy to transeform to late binding. but it is error. how to do except of yourMLeader.TextRightAttachmentType =AcTextAttachmentType.acAttachmentBottomOfBottom; in early binding?

[_gile]

Try with an explicit cast:

yourMLeader.TextRightAttachmentType = (AcTextAttachmentType)6;

[Anonymous]

It is ok. Thank you very much!!

[Anonymous]

Hi,there are another problem when i create region. this work well in early binding.

AcadCircle[] circleObj = new AcadCircle[1];

double[] calpt = new double[3];

calpt[0] = 0; calpt[1] = 0; calpt[2] = 0;

circleObj[0] = AcadDoc.ModelSpace.AddCircle(calpt, 5);

// create region

object[] regionObject;

regionObject = (object[])AcadDoc.ModelSpace.AddRegion(circleObj);

when i transfer to late binding like this, it is show " Invalid Object Array".

dynamic[] circleObj = new dynamic[1];

double[] calpt = new double[3];

calpt[0] = 0; calpt[1] = 0; calpt[2] = 0;

circleObj[0] = AcadDoc.ModelSpace.AddCircle(calpt, 5);

// create region

object[] regionObject;

regionObject = (object[])AcadDoc.ModelSpace.AddRegion(circleObj); //this can't work.

How to do it?