You can create a multiline text object by first creating an instance of a MText object and then adding it to a block table record that represents Model or Paper space. The MText object constructor does not take any parameters. After an instance of an MText object is created, you can then assign it a text string, insertion point, and width among other values using its properties. Other properties that you can change affect the object’s text height, justification, rotation angle, and text style, or apply character formatting to selected characters
Create a multiline text object
The following example creates an MText object in Model space, at the coordinate (2, 2, 0).
Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Geometry
<CommandMethod("CreateMText")> _
Public Sub CreateMText()
'' Get the current document and database
Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
Dim acCurDb As Database = acDoc.Database
'' Start a transaction
Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
'' Open the Block table for read
Dim acBlkTbl As BlockTable
acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId, _
OpenMode.ForRead)
'' Open the Block table record Model space for write
Dim acBlkTblRec As BlockTableRecord
acBlkTblRec = acTrans.GetObject(acBlkTbl(BlockTableRecord.ModelSpace), _
OpenMode.ForWrite)
'' Create a multiline text object
Dim acMText As MText = New MText()
acMText.Location = New Point3d(2, 2, 0)
acMText.Width = 4
acMText.Contents = "This is a text string for the MText object."
acBlkTblRec.AppendEntity(acMText)
acTrans.AddNewlyCreatedDBObject(acMText, True)
'' Save the changes and dispose of the transaction
acTrans.Commit()
End Using
End Sub
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
[CommandMethod("CreateMText")]
public static void CreateMText()
{
// 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 multiline text object
MText acMText = new MText();
acMText.Location = new Point3d(2, 2, 0);
acMText.Width = 4;
acMText.Contents = "This is a text string for the MText object.";
acBlkTblRec.AppendEntity(acMText);
acTrans.AddNewlyCreatedDBObject(acMText, true);
// Save the changes and dispose of the transaction
acTrans.Commit();
}
}