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Mentor
mfernandes
Posts: 206
Registered: ‎08-21-2007
Message 1 of 11 (848 Views)

step through selection set

848 Views, 10 Replies
04-17-2012 07:55 PM

Maybe a simple question, but I am just getting into this dot net stuff

 

so.......

does anyone have a sample on how best to step through a selection set.

I need to extract the Text properties of each of the text objects in the selection set

 

this is all I have so far

        Private Sub ExtractText(ByRef acSSet As SelectionSet)

            '' Step through the objects in the selection set
            For Each acSSObj As SelectedObject In acSSet
                Dim acEnt As Entity = GetObject..??????

                '' Write data to MDB file.

            Next


        End Sub

 

 

 

thanks in advance.

Mentor
BrentBurgess1980
Posts: 162
Registered: ‎06-16-2008
Message 2 of 11 (852 Views)

Re: step through selection set

04-17-2012 09:59 PM in reply to: mfernandes

try this

 

To get the entity use (in C#)

 

Entity acEnt = (Entity)tr.GetObject(acSSObj.ObjectId, OpenMode.ForRead);

*Expert Elite*
Hallex
Posts: 1,569
Registered: ‎10-08-2008
Message 3 of 11 (849 Views)

Re: step through selection set

04-17-2012 10:12 PM in reply to: mfernandes

You can try this code as well

    ' Imports System.Collections.Specialized
    Private Function ExtractText() As StringCollection
        Dim txtcoll As New StringCollection
        Dim doc As Document = Application.DocumentManager.MdiActiveDocument()
        Dim db As Database = doc.Database
        Dim ed As Editor = doc.Editor
        Try
            Using tr As Transaction = db.TransactionManager.StartTransaction
                Dim res As PromptSelectionResult
                Dim filterList(,) As Object = New Object(,) {{-4, "<or"}, {0, "text"}, {0, "mtext"}, {-4, "or>"}} '' etc
                Dim tvs(filterList.GetUpperBound(0)) As TypedValue
                For i As Integer = 0 To filterList.GetUpperBound(0)
                    tvs(i) = New TypedValue(Convert.ToInt32(filterList(i, 0)), filterList(i, 1))
                Next
                Dim filt As SelectionFilter = New SelectionFilter(tvs)
                res = ed.SelectAll(filt)
                If res.Status <> PromptStatus.OK Then
                    Return Nothing
                End If
                For Each sobj As SelectedObject In res.Value
                    Dim ent As Entity = tr.GetObject(sobj.ObjectId, OpenMode.ForRead)
                    Dim txt As DBText = TryCast(ent, DBText)
                    If txt IsNot Nothing Then
                        txtcoll.Add(txt.TextString)
                    End If
                    Dim mtxt As MText = TryCast(ent, MText)
                    If mtxt IsNot Nothing Then
                        txtcoll.Add(mtxt.Contents)
                    End If
                Next
            End Using
        Catch exs As System.Exception
            ed.WriteMessage(exs.Message & vbLf & exs.StackTrace)
            Return Nothing
        Finally

        End Try
        Return txtcoll
    End Function
    Public Sub TestTexts()
        Dim txtcoll As StringCollection = ExtractText()
        Dim tb As System.Data.DataTable = New System.Data.DataTable
        tb.Columns.Add("text")
        For Each str As String In txtcoll
            Dim dr As System.Data.DataRow = tb.NewRow
            dr(0) = str
            tb.Rows.Add(dr)
        Next
        '' pull this datatable in MDB here
    End Sub

 

~'J'~

_____________________________________
C6309D9E0751D165D0934D0621DFF27919
Mentor
mfernandes
Posts: 206
Registered: ‎08-21-2007
Message 4 of 11 (844 Views)

Re: step through selection set

04-17-2012 10:19 PM in reply to: mfernandes
Spoiler
 

Excellent!!!! You guys rock

Thanks

 

this used to be so easy in VBA. I guess I will just have to keep putting the time into VB.net.

 

cherrs

 

Mentor
BrentBurgess1980
Posts: 162
Registered: ‎06-16-2008
Message 5 of 11 (842 Views)

Re: step through selection set

04-17-2012 10:24 PM in reply to: mfernandes

I found it very hard going from VBA to VB.Net. Keep sticking with it, and you will find it gets easier exponentially. The hardest bit for me was all of the extra stuff you needed to do (Start transactions, table records etc)

Mentor
mfernandes
Posts: 206
Registered: ‎08-21-2007
Message 6 of 11 (808 Views)

Re: step through selection set

04-18-2012 10:39 PM in reply to: mfernandes

Hallex thanks you for your help.

If I may, I have another question.

 

In your code I see that you create a collection of the extracted text.

You then created a sub to create a data table that will be used to populate a MDB file. (not sure how)

 

In terms of programming practice, is there a reason why you choose this path instead of writing the text directly to the MDB file within the function ExtractText() in the For Each sobj , loop?

 

I have been searching, with no success on how to write to MDB file,

After I create a new MDB and a table I have the following to try and write to the table. but I am not sure if it is the proper way to do this. Additionally how do you write variable data?

i.e. TxtStr=”Hello”

PtX=1.0

PtY=1.0

 

Any suggestion or improvements.

            Dim ADOXcatalog As New ADOX.Catalog
            Dim ADOXtable As New ADOX.Table

            Dim con As ADODB.Connection

            On Error Resume Next
            ADOXcatalog.ActiveConnection = _
            "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" _
            & "c:\newdata.mdb"
            con = ADOXcatalog.ActiveConnection

            ' Insert records.
            con.Execute("INSERT INTO TextDB VALUES (‘Hello’, " & _
             "'1.00', '1.00')")
            con.Execute("INSERT INTO TextDB VALUES ('Test', " & _
            "'3.00', '3.00')")

            ' Close the database connection.
            con.Close()
            con = Nothing

 

*Expert Elite*
Hallex
Posts: 1,569
Registered: ‎10-08-2008
Message 7 of 11 (799 Views)

Re: step through selection set

04-19-2012 12:49 AM in reply to: mfernandes

See if this is working for you

I tested them on A2009 only

   Imports ADOX
    Imports System.Data
    Imports System.Collections.Specialized
    Imports Autodesk.AutoCAD.ApplicationServices
    Imports Autodesk.AutoCAD.DatabaseServices
    Imports Autodesk.AutoCAD.Runtime
    Imports Autodesk.AutoCAD.EditorInput
    Imports System.Data.OleDb

    <CommandMethod("TestAdox")> _
    Public Sub TestTexts()
        Dim txtcoll As StringCollection = ExtractText()
        Dim tb As System.Data.DataTable = New System.Data.DataTable
        tb.Columns.Add("text")
        For Each str As String In txtcoll
            Dim dr As System.Data.DataRow = tb.NewRow
            dr(0) = str
            tb.Rows.Add(dr)
        Next
        '' pull this datatable in MDB here
        InsertText(tb)

    End Sub

    Private Function ExtractText() As StringCollection
        Dim txtcoll As New StringCollection
        Dim doc As Document = Application.DocumentManager.MdiActiveDocument()
        Dim db As Database = doc.Database
        Dim ed As Editor = doc.Editor
        Try
            Using tr As Transaction = db.TransactionManager.StartTransaction
                Dim res As PromptSelectionResult
                Dim filterList(,) As Object = New Object(,) {{-4, "<or"}, {0, "text"}, {0, "mtext"}, {-4, "or>"}} '' etc
                Dim tvs(filterList.GetUpperBound(0)) As TypedValue
                For i As Integer = 0 To filterList.GetUpperBound(0)
                    tvs(i) = New TypedValue(Convert.ToInt32(filterList(i, 0)), filterList(i, 1))
                Next
                Dim filt As SelectionFilter = New SelectionFilter(tvs)
                res = ed.SelectAll(filt)
                If res.Status <> PromptStatus.OK Then
                    Return Nothing
                End If
                For Each sobj As SelectedObject In res.Value
                    Dim ent As Entity = tr.GetObject(sobj.ObjectId, OpenMode.ForRead)
                    Dim txt As DBText = TryCast(ent, DBText)
                    If txt IsNot Nothing Then
                        txtcoll.Add(txt.TextString)
                    End If
                    Dim mtxt As MText = TryCast(ent, MText)
                    If mtxt IsNot Nothing Then
                        txtcoll.Add(mtxt.Contents)
                    End If
                Next
            End Using
        Catch exs As System.Exception
            ed.WriteMessage(exs.Message & vbLf & exs.StackTrace)
            Return Nothing
        Finally

        End Try
        Return txtcoll
    End Function

    Public Sub InsertText(dt As System.Data.DataTable)
        Try
            Dim OleConn As New OleDbConnection

            Dim OleDa As OleDbDataAdapter = New OleDbDataAdapter()

            Dim OleSb As New OleDbConnectionStringBuilder()

            OleSb.DataSource = "c:\Test\tmp.mdb" '<-- change path here

            OleSb.Provider = "Microsoft.Jet.OLEDB.4.0"

            OleSb.PersistSecurityInfo = False

            OleConn = New OleDbConnection(OleSb.ConnectionString)
            OleConn.Open()

            Dim strSQL As String = "select BlockName from Blocks" '<-- change string here

            OleDa.SelectCommand = New OleDbCommand(strSQL, OleConn)

            strSQL = "insert into Blocks (BlockName) values (@BlockName)" '<-- change string here

            OleDa.InsertCommand = New OleDbCommand(strSQL, OleConn)

            OleDa.InsertCommand.Parameters.Add("@BlockName", OleDbType.VarChar, 20, "BlockName") '<-- change string here

            For Each dr As System.Data.DataRow In dt.Rows

                Dim txt As String = Convert.ToString(dr(0))

                OleDa.InsertCommand.Parameters("@BlockName").Value = txt '<-- change string here

                OleDa.InsertCommand.ExecuteNonQuery()
            Next
            OleConn.Close()

        Catch ex As Exception
            MsgBox(ex.Message & vbLf & ex.StackTrace)
        End Try
    End Sub

 

~'J'~

_____________________________________
C6309D9E0751D165D0934D0621DFF27919
Mentor
mfernandes
Posts: 206
Registered: ‎08-21-2007
Message 8 of 11 (761 Views)

Re: step through selection set

04-23-2012 11:37 AM in reply to: Hallex

I not sure if I should create a new post on this but here goes.

I am attempting to write data to a recordset as per the MSDN site.

 

recordset.AddNew FieldList, Values

 

recordset: A Recordset object. FieldList: Optional. A single name, or an array of names or ordinal positions of the fields in the new record.

Values

Optional. A single value, or an array of values for the fields in the new record. If Fieldlist is an array, Values must also be an array with the same number of members; otherwise, an error occurs. The order of field names must match the order of field values in each array.

 

However I get an error. COMException was unhandled by user code.{"Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another."

any ideas or suggestions.

 



        Private Sub Addrecord()
            Dim catDB As ADOX.Catalog
            Dim strDBPath As String = "c:\newdata.mdb"
            Dim strTbl As String = "Annotation"


            catDB = New ADOX.Catalog
            ' Open the catalog.

            Dim cnn As New ADODB.Connection
            cnn.Open("Provider='Microsoft.Jet.OLEDB.4.0';" & _
                "Data Source= '" & strDBPath & "';")
            catDB.ActiveConnection = cnn


            Dim rs = New ADODB.Recordset
            rs.Open(strTbl, cnn, CursorTypeEnum.adOpenKeyset, LockTypeEnum.adLockOptimistic) 'adOpenKeyset, adLockOptimistic, adCmdTable)

            Dim fieldsArray(6) As String
            fieldsArray(0) = "ADMAPKEY"
            fieldsArray(1) = "LotKey"
            fieldsArray(2) = "X1"
            fieldsArray(3) = "Y1"
            fieldsArray(4) = "TEXT_ANGLE"
            fieldsArray(5) = "TEXT_SIZE"
            fieldsArray(6) = "TEXTSTRING"


            Dim values(6) As Object
            values(0) = "Hello"
            values(1) = 1111
            values(2) = 2222
            values(3) = 33333
            values(4) = 4444
            values(5) = 5555
            values(6) = "TEST"

            rs.AddNew(fieldsArray, values)

            'rs.AddNew()
            'rs.Fields.Item("ADMAPKEY").Value = "Hello"
            'rs.Fields.Item("LotKey").Value = 222
            'rs.Fields.Item("X1").Value = 123
            'rs.Fields.Item("Y1").Value = 456
            'rs.Fields.Item("TEXT_ANGLE").Value = 789
            'rs.Fields.Item("TEXT_SIZE").Value = 234
            'rs.Fields.Item("TEXTSTRING").Value = "Hello"
            'rs.AddNew()


            rs.Update()
            rs.Close()
            rs = Nothing

        End Sub

 

*Expert Elite*
Alfred.NESWADBA
Posts: 9,217
Registered: ‎06-29-2007
Message 9 of 11 (758 Views)

Re: step through selection set

04-23-2012 11:46 AM in reply to: mfernandes

Hi,

 

Sorry for interrupt, but just to make sure: If you are running on 64bit OS (and so 64bit AutoCAD) you will not be able to use the "Microsoft.Jet" driver as it is limited to 32bit.

I think MDB-files are no files for future use as Microsoft is pushing SQLServer (and keeps on blocking everything else).

 

If you do now start a development think about SQL-Server Express (which is free) or I use very often SQLite (also free plus the biggest advantage: it's file based, you don't need any additional installation for using it).

 

- alfred -

-------------------------------------------------------------------------
Alfred NESWADBA
Ingenieur Studio HOLLAUS ... www.hollaus.at
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Mentor
mfernandes
Posts: 206
Registered: ‎08-21-2007
Message 10 of 11 (756 Views)

Re: step through selection set

04-23-2012 11:54 AM in reply to: Alfred.NESWADBA

 

Hello afred

Thanks for the tip.

I am running Map as well as office in 32bit.

Unfortunately I am stuck with this for now.

 

It would be great if Autodesk and MS played nice, for the most part I guess they do.

The struggle is finding the latest samples out there, as API change from one version to the next.

 

 

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