In C#, what class is work with the entity of "INSERT"?

[Anonymous]

Hi,
I want to insert a block into the database, what I know is the name of block(dwg's name), how can I finish it by use C#?
I cannot find the relative class of "INSERT", as the class 'Line' with "LINE" relatively.
Thanks in advance.

[Anonymous]

You could search this newsgroup for articles about:
- creating a block definition using the class 'BlockTableRecord'
- inserting an instance of this definition in the drawing using the class
'BlockReference'



schreef in bericht news:5575256@discussion.autodesk.com...
Hi,
I want to insert a block into the database, what I know is the name of
block(dwg's name), how can I finish it by use C#?
I cannot find the relative class of "INSERT", as the class 'Line' with
"LINE" relatively.
Thanks in advance.

[caddie75]

Hi,

here are some of the classes:
BlockTable > database table of all blocks in the drawing.
BlockTableRecord > a Single block in the database.

BlockReference > the block placed in the drawing, a "reference" to the blocktablerecord.

A Caddie.

[Anonymous]

Here you go: (I insert the other file exploded, but you can omit this step)

internal DBObjectCollection InsertDWGFile(string dwgName, Point2d insertion, double rotation, Scale3d blockScale, string layer)
{
try
{
// Find the file
string fullDWGName = HostApplicationServices.Current.FindFile(Properties.Settings.Default.BlockFolder + "\\" + dwgName + ".dwg", dataBase, FindFileHint.Default);
// Create block's file database
Database blockDB = new Database(false, false);
blockDB.ReadDwgFile(fullDWGName, System.IO.FileShare.Read, true, "");
// Insert block definition
ObjectId blockID = dataBase.Insert(dwgName, blockDB, true);
// Close block file
blockDB.Dispose();
// Insert a block instance
BlockReference blockInstance = new BlockReference(new Point3d(insertion.X, insertion.Y, 0), blockID);
blockInstance.Rotation = rotation;
blockInstance.ScaleFactors = blockScale;
blockInstance.Layer = layer;

// Explode the block instance
DBObjectCollection entities = new DBObjectCollection();
blockInstance.Explode(entities);
// Delete the block definition
blockInstance.Dispose();
// Change the layer of the block's entities
foreach (Entity entity in entities)
if (entity.Layer == "0") entity.Layer = layer;
// Delete the block reference from the database
currentTransaction.GetObject(blockID, OpenMode.ForWrite).Erase(true);
return entities;
}
// If no file was found
catch (Autodesk.AutoCAD.Runtime.Exception)
{
MText errorText = new MText();
errorText.Location = new Point3d(insertion.X, insertion.Y, 0);
errorText.Rotation = rotation;
errorText.TextHeight = TextHeight;
errorText.Contents ="Failed to locate file:\\P" +
(Properties.Settings.Default.BlockFolder + "\\" +
dwgName).Replace("\\", "\\\\") + ".dwg"; errorText.Attachment = AttachmentPoint.MiddleCenter;
errorText.Layer = layer;
DBObjectCollection rtrn = new DBObjectCollection();
rtrn.Add(errorText);
return rtrn;
}
}

[Anonymous]

Thank you very much.
I Try it and get the correct result, but I get another trouble, that is: when I insert a block into current database, I want to retrieve the name of block, code list as:
protected void GetBlkName()
{
using (Transaction trans = transMan.StartTransaction())　　　　//start transaction
{
BlockReference blk = (BlockReference)trans.GetObject(ObjectId, OpenMode.ForRead, false);
BlockTableRecord blkDefine = (BlockTableRecord)trans.GetObject(blk.BlockId, OpenMode.ForRead);
blockName = blkDefine.Name;
}
}
But unfortunately, I get an incorrect result, can you tell me how to do?
Thanks.

[Anonymous]

Your code is almost correct.
If you change "blk.BlockId" to "blk.BlockTableRecord" it will work.



schreef in bericht news:5576312@discussion.autodesk.com...
Thank you very much.
I Try it and get the correct result, but I get another trouble, that is:
when I insert a block into current database, I want to retrieve the name of
block, code list as:
protected void GetBlkName()
{
using (Transaction trans =
transMan.StartTransaction())????//start transaction
{
BlockReference blk =
(BlockReference)trans.GetObject(ObjectId, OpenMode.ForRead, false);
BlockTableRecord blkDefine =
(BlockTableRecord)trans.GetObject(blk.BlockId, OpenMode.ForRead);
blockName = blkDefine.Name;
}
}
But unfortunately, I get an incorrect result, can you tell me how to
do?
Thanks.