topic Re: Alternative Attribute command in .NET Forum

Alternative Attribute command

Anonymous — Tue, 29 May 2012 13:20:08 GMT

Hi, I want write a command for attribute editing. The command check if the block name is equal to a string and if yes make some operation, if no continue with DDEDIT standard command.

The program work well if the block name is not the some of the string. When the name is the some the program make the correct operation but then run also the ddedit command.

there is a way for break the command?

Imports Autodesk.AutoCAD.Runtime

Imports Autodesk.AutoCAD

Imports Autodesk.AutoCAD.DatabaseServices

Imports Autodesk.AutoCAD.ApplicationServices

Imports Autodesk.AutoCAD.Geometry

Imports Autodesk.AutoCAD.EditorInput

Imports Autodesk.AutoCAD.Colors

Imports System

Imports System.Windows.Forms

Imports System.Math

'Imports System.Web.Mail

Imports Microsoft.Office.Core

Imports Microsoft.Office.Interop

'Imports Microsoft.Office.Interop.Outlook

Imports System.Runtime.InteropServices

Imports Autodesk.AutoCAD.Interop

Public ClassreactorDim bEditCommand AsBooleanDim bDoRepositioning AsBoolean

<CommandMethod("AddEvents")> _

PublicSubplantDbEvents()

Dim doc AsDocument = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument

Dim db AsDatabase = HostApplicationServices.WorkingDatabase()

'AddHandler db.ObjectOpenedForModify, New ObjectEventHandler(AddressOf objOpenedForMod)AddHandler doc.CommandWillStart, NewCommandEventHandler(AddressOfcmdWillStart)

'AddHandler doc.CommandEnded, New CommandEventHandler(AddressOf cmdEnded)

bEditCommand =

False

bDoRepositioning =

FalseEndSubPublicSub cmdWillStart(ByVal o AsObject, ByVal e AsCommandEventArgs)

Dim ed AsEditor = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor

TryIf e.GlobalCommandName = "DDEDIT"Or e.GlobalCommandName = "EATTEDIT"Then

Dim fr2 AsNewFerriDim strNomeBlocco AsStringDim myDwg AsDocument'Dim myBT As BlockTable'Dim myBTR As BlockTableRecordDim myDB As DatabaseServices.DatabaseDim myTransMan As DatabaseServices.TransactionManagerDim myTrans As DatabaseServices.TransactionDim myEd As EditorInput.EditorDim myPSR As EditorInput.PromptSelectionResult

Dim TargetBlockRef As DatabaseServices.BlockReference

myDB = ApplicationServices.

Application.DocumentManager.MdiActiveDocument.Database

myDwg = Autodesk.AutoCAD.ApplicationServices.

Application.DocumentManager.MdiActiveDocument

strNomeBlocco =

"FERRI-P"

myTransMan = myDB.TransactionManager

myTrans = myTransMan.StartTransaction

myEd = myDwg.Editor

a2: myPSR = myEd.SelectImplied

SelectCasemyPSR.Status

Case EditorInput.PromptStatus.OK

SelectCasemyPSR.Value.Count

Case1

Dim mySelobj As EditorInput.SelectedObjectDim myAcadEnt As DatabaseServices.Entity

For I = 1 TomyPSR.Value.Count

mySelobj = myPSR.Value.Item(I - 1)

myAcadEnt = mySelobj.ObjectId.GetObject(DatabaseServices.

OpenMode.ForRead)

TargetBlockRef = myAcadEnt

If Microsoft.VisualBasic.Left$(UCase(TargetBlockRef.Name), 5) = "FERRI"Then

fr2.Show()

GoToA15

EndIf

NextI

CaseIs> 1

MsgBox(

"Seleziona un solo blocco delle Posizioni")

myPSR =

NothingGoToa2

Case ElseEndSelectCase EditorInput.PromptStatus.Error

' GoTo a3

' Case EditorInput.PromptStatus.Cancel

EndSelectEndIfCatch ex As System.Exception

ed.WriteMessage(

"Error in cmdWillStart: "+ ex.Message)

EndTry

A15:

EndSub

End

Class

Re: Alternative Attribute command

norman.yuan — Tue, 29 May 2012 14:58:51 GMT

Handling CommandWillStart event will not meet your need, as you have already found out, because no matter what you do in the event handler, it is just something you can do before the command starts, after your code runs, the command will still run.

To your need, you can handle DocumentCollection.DocumentLockModeChanged event and DocumentCollection.DocumentLockModeChangeVetoed event. That is, in the DocumentLockModeChanged event handler, if a certain condition is met, you can then veto the command, which will result in the DocumentLockModeChangeVetoed event being fired. Then in DocumentLockModeChangeVetoed event handler, you can start your own process/custom command.

Some psuedo code:

private static bool runAlternativeCmd=false;

public void Initialize()

{

DocumentCollection docs=Application.DocumentManager;

docs.DocumentLockModeChanged+=new DocumentLockModeChangedEventHandler(DocLockChanged);

docs.DocumentLockModeChangeVetoed+=new DocumentLockModeChangeVetoedEventHandler(DocLockChangeVetoed);

}

void DocLockChanged(object sender, DocumentLockModeChangedEventArgs e)

{

if (e.GlobalCommandName.ToUpper()=="XXXXXXX")

{

//Test if the entity in the implied selectionset is the targeting block. If it is, veto the command

runAlternativeCmd=true;

}

else

{

runAlternativeCmd=false;

}

void DocLockChaneVetoed(object sender, DocumentLockChangeVetoedEventArgs e)

{

If (runAlternativeCmd)

{

Document doc=Application.DocumentManager/MdiDocument;

doc.SendStringToExcute("MyAttrEdit ",true, false, false);

}

[CoommandMethod["MyAttrEdit")]

public static void EditMyAttribute()

{

Do my own editing process

}

HTH

Re: Alternative Attribute command

GTVic — Tue, 29 May 2012 17:43:25 GMT

Here are two ADN DevBlog entries:

Get the real name of a block if it is anonymous (necessary for dynamic blocks):

http://adndevblog.typepad.com/autocad/2012/05/identifying-block-name-from-the-block-reference.html

Veto a command as described above:

http://adndevblog.typepad.com/autocad/2012/05/veto-a-particular-command-in-autocad.html

Re: Alternative Attribute command

Anonymous — Wed, 30 May 2012 12:55:30 GMT

Re: Alternative Attribute command

Anonymous — Wed, 30 May 2012 13:01:58 GMT

Thamks

I must use the DLL with AutoCAD 2013 but there is an error

I have convert C code in Vb.net code, this is the result:

Imports Autodesk.AutoCAD.Runtime

Imports Autodesk.AutoCAD

Imports Autodesk.AutoCAD.DatabaseServices

Imports Autodesk.AutoCAD.ApplicationServices

Imports Autodesk.AutoCAD.Geometry

Imports Autodesk.AutoCAD.EditorInput

Imports Autodesk.AutoCAD.Colors

Imports System

Imports System.Windows.Forms

Imports System.Math

'Imports System.Web.Mail

Imports System.Runtime.InteropServices

Imports Autodesk.AutoCAD.Interop

Imports System.Collections.Specialized

Public ClassClass2

<CommandMethod("AddVetoToQuit")> _

PublicSharedSubAddVetoToQuit()

Dim doc AsDocumentCollection = ApplicationServices.Application.DocumentManager

doc.DocumentLockModeChanged +=NewDocumentLockModeChangedEventHandlerdoc_DocumentLockModeChanged)

　EndSub

<CommandMethod("RemoveVetoToQuit")> _

PublicSharedSubRemoveVetoToQuit()

Dim doc AsDocumentCollection = ApplicationServices.Application.DocumentManager

doc.DocumentLockModeChanged -=NewDocumentLockModeChangedEventHandler(doc_DocumentLockModeChanged)

EndSub

PrivateSharedSub doc_DocumentLockModeChanged(sender AsObject, e AsDocumentLockModeChangedEventArgs)

IfString.Compare(e.GlobalCommandName, "QUIT", True) = 0 Then

e.Veto()

EndIf

EndSub

End Class

Re: Alternative Attribute command

norman.yuan — Wed, 30 May 2012 13:36:47 GMT

I do not think you can use

Object.Event +=EventHandler(...) in VB.NET.

You should look into AddHandler/RemoveHandler statement in VB.NET, like:

AddHandler Object.Event, Address Of EventHandlerName

RemoveHandler Object.Event, Address Of EventHandlerName

Re: Alternative Attribute command

Anonymous — Wed, 30 May 2012 14:33:59 GMT

Re: Alternative Attribute command

Anonymous — Wed, 30 May 2012 14:35:35 GMT

Like this? But I receive an error on "Autodesk.AutoCAD.ApplicationServices.DocumentCollection.DocumentLockModeChanged"

Public

Classveto

CommandMethod("AddDocColEvent")> _

PublicSubAddDocColEvent()

AddHandler Autodesk.AutoCAD.ApplicationServices.DocumentCollection.DocumentLockModeChanged, AddressOfdocColDocAct

EndSub

CommandMethod("RemoveDocColEvent")> _

PublicSubRemoveDocColEvent()

RemoveHandler ApplicationServices.Application.DocumentManager.DocumentActivated, _

AddressOfdocColDocAct

EndSubPublicSub docColDocAct(ByVal senderObj AsObject, _

ByVal docColDocActEvtArgs AsDocumentCollectionEventArgs)

ApplicationServices.

Application.ShowAlertDialog(docColDocActEvtArgs.Document.Name & _

" was activated.")

EndSub

End

Class

Re: Alternative Attribute command

norman.yuan — Wed, 30 May 2012 14:52:43 GMT

Well, carefully looking into the compiling error would reveal something obviously.

1. You added event handler to handle DocumentLockModeChanged event, but you remove a handler on DocumentActivated event, which is never been added in the first place.

2. The event handler docColDocAct() cannot be used to handle DocumentLockModeChanged event, because the handler's signature is wrong. Event handler for DocumentLockModeChanged requires the second argumnet of the handler to be type of DocumentLockModeChangedEventArgs, not DocumentCollectionEventArgs.

Re: Alternative Attribute command

Anonymous — Thu, 31 May 2012 07:47:41 GMT

Have you a VB.NET example?

Re: Alternative Attribute command

Anonymous — Thu, 31 May 2012 13:35:15 GMT

I try this but don't work...

CommandMethod("AddDocColEvent")> _

PublicSubAddDocColEvent()

Dim doc As Autodesk.AutoCAD.ApplicationServices.Document

doc = Autodesk.AutoCAD.ApplicationServices.

Application.DocumentManager.MdiActiveDocument

AddHandler doc.DocumentLockModeChanged, NewObjectEventHandler(AddressOfdocColDocAct)

EndSubPublicSub docColDocAct(ByVal sender AsObject, docColDocActEvtArgs AsDocumentLockModeChangedEventArgs)

ApplicationServices.

Application.ShowAlertDialog(docColDocActEvtArgs.Document.Name & _

" was activated.")

EndSub

End

Class

Re: Alternative Attribute command

norman.yuan — Thu, 31 May 2012 14:11:10 GMT

Did you try to compile your code (or did get intellisense prompt when writing the code in VB editor)? Document class DOES NOT have event DocumentLockModeChanged event. So, I am wondering how you write your code without intellisense prompt and how you compile your code without error. It is DocumentCollection class that has event DocumentLockModeChanged/DocumentLockModeChangeVetoed event.

I put together some quick code, assuming that under certain codition, you do not want SAVE/QSAVE command run, instead, you run your own custom command. Here is the code:

Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.EditorInput

<Assembly: CommandClass(GetType(AlternativeCommandVB.AlternativeCmd))> 
<Assembly: ExtensionApplication(GetType(AlternativeCommandVB.AlternativeCmd))> 

Public Class AlternativeCmd
    Implements IExtensionApplication

    Private Shared docs As DocumentCollection = Nothing
    Private Shared _dwgName As String = ""
    Private Shared _runAltCmd As Boolean = False
    Private Const TARGET_CMD = "SAVE"

    Public Sub Initialize() _
            Implements Autodesk.AutoCAD.Runtime.IExtensionApplication.Initialize

        docs = Application.DocumentManager

        AddHandler docs.DocumentLockModeChanged, _
            AddressOf Docs_DocumentLockModeChanged

        AddHandler docs.DocumentLockModeChangeVetoed, _
            AddressOf Docs_DocumentLockModeChangeVetoed

    End Sub

    Public Sub Terminate() _
        Implements Autodesk.AutoCAD.Runtime.IExtensionApplication.Terminate

    End Sub

    Private Sub Docs_DocumentLockModeChanged( _
                sender As Object, e As DocumentLockModeChangedEventArgs)

        _dwgName = e.Document.Name
        _runAltCmd = False

        If e.GlobalCommandName.ToUpper().Contains(TARGET_CMD) Then
            If CheckVetoCondition(e.Document) Then
                _runAltCmd = True
                e.Veto()
            End If
        End If

    End Sub

    Private Sub Docs_DocumentLockModeChangeVetoed( _
                sender As Object, e As DocumentLockModeChangeVetoedEventArgs)

        If _runAltCmd AndAlso _dwgName.ToUpper() = e.Document.Name.ToUpper() Then

            e.Document.Editor.WriteMessage(vbCr & "Command """ & _
                                           TARGET_CMD & """ has been vetoed")
            e.Document.SendStringToExecute("MyAltCmd ", True, False, True)

        End If

    End Sub

    <CommandMethod("MyAltCmd")> _
    Public Shared Sub RunMyCustomCmd()

        Dim ed As Editor = Application.DocumentManager.MdiActiveDocument.Editor
        ed.WriteMessage(vbCr & _
                        "Execute my coomand, instead of ""Save"" command....Done" & vbCr)

    End Sub

    Private Function CheckVetoCondition(dwg As Document) As Boolean
        ''Do needed condition test
        Return True
    End Function

End Class

Start AutoCAD and load this project. Then enter command SAVE or QSAVE, you would see from command line that the SAVE/QSAVE command is vetoed and the custom command "MyAltCmd" runs.

HTH

Re: Alternative Attribute command

Anonymous — Mon, 04 Jun 2012 10:29:32 GMT

Thanks now work correctly!!