Topic: Get ObjectId from string value

[Andrey Bushman]

Code: [Select]

ObjectId id = per.ObjectId;
string sid = id.ToString();//string value: (2123218520)
How to fulfill retroactive effect: to receive ObjectId on the basis of a string received by means of method ToString?

[gile]

Code: [Select]

Convert.ToInt32(sid.Trim(new char[] { '(', ')' }))
or

Code: [Select]

Int32.Parse(sid.Trim(new char[] { '(', ')' }))

[Andrey Bushman]

Code: [Select]

Convert.ToInt32(sid.Trim(new char[] { '(', ')' }))
or

Code: [Select]

Int32.Parse(sid.Trim(new char[] { '(', ')' }))

ObjectId != Int32

[It's Alive!]

what if its 64bit?

[Andrey Bushman]

I need get ObjectId from string. I dont need get Int32 from string.

[kaefer]

I need get ObjectId from string. I dont need get Int32 from string.

I don't think that you need to get ObjectId from string. Why would anybody?

Anyway, look out  for public static explicit operator IntPtr(long value).

 F# to the rescue:

Code: [Select]

    let str = "(2123218520)"
    let (res, long) = str.Trim[|'('; ')'|] |> System.Int64.TryParse
    if res then
        new ObjectId(nativeint long)
    else
        failwith "Boom"


[Andrey Bushman]

All thanks. I have decided to use Handle instead of ObjectId:

Code: [Select]

public string GetFullPath(Transaction t, DBObject obj) {
    string path = string.Format("{0}|{1}", obj.ObjectId.ObjectClass.Name, obj.ObjectId.Handle.Value);
    if (obj.OwnerId != ObjectId.Null && obj.OwnerId.IsValid)
        path = string.Format("{0}\\{1}", GetFullPath(t, t.GetObject(obj.OwnerId, OpenMode.ForRead)), path);
    return path;
}
Result (sample):

Full path: AcDbBlockTable|1\AcDbBlockTableRecord|31\AcDbArc|1148147

With Split method I can get from it's string:

AcDbBlockTable|1
AcDbBlockTableRecord|31
AcDbArc|1148147

And with Split again I can get class name (AcDbArc) or object handle (1148147). From handle I can get ObjectId.

[BillZndl]

Here's from another forum:
http://forums.autodesk.com/t5/NET/Convert-string-to-ObjectId/m-p/1630045#M3324

[Andrey Bushman]

Here's from another forum:
http://forums.autodesk.com/t5/NET/Convert-string-to-ObjectId/m-p/1630045#M3324

Thank you!

[BillZndl]

You're welcome but don't thank me, thank Tony T. 

[Andrey Bushman]

You're welcome but don't thank me, thank Tony T. 

I have thanked for the link