Each individual line of text is a distinct object when using single-line text. To create a single-line text object, you create an instance of a DBText object and then add it to either the block table record that represents Model or Paper space. When you create a new instance of a DBText object, you do not pass the constructor any parameters.
The following example creates a single-line text object in Model space at the coordinate (2, 2, 0) with a height of 0.5 and the text string "Hello, World.".
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
[CommandMethod("CreateText")]
public static void CreateText()
{
// Get the current document and database
Document acDoc = Application.DocumentManager.MdiActiveDocument;
Database acCurDb = acDoc.Database;
// Start a transaction
using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
{
// Open the Block table for read
BlockTable acBlkTbl;
acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
OpenMode.ForRead) as BlockTable;
// Open the Block table record Model space for write
BlockTableRecord acBlkTblRec;
acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],
OpenMode.ForWrite) as BlockTableRecord;
// Create a single-line text object
using (DBText acText = new DBText())
{
acText.Position = new Point3d(2, 2, 0);
acText.Height = 0.5;
acText.TextString = "Hello, World.";
acBlkTblRec.AppendEntity(acText);
acTrans.AddNewlyCreatedDBObject(acText, true);
}
// Save the changes and dispose of the transaction
acTrans.Commit();
}
}