//添加扩展数据
private void AddXData_Button_Click(object sender, EventArgs e)
{
using (AddEntityXDataForm addentityxdataform = new AddEntityXDataForm())
{
Autodesk.AutoCAD.ApplicationServices.Application.ShowModalDialog(addentityxdataform);
}
}
//用户添加扩展记录
public static void UserAddXData()
{
Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
ed.WriteMessage("添加扩充数据 XDATA\n");
PromptEntityOptions entOps = new PromptEntityOptions("选择实体对象");
PromptEntityResult entRes;
entRes = ed.GetEntity(entOps);
if (entRes.Status != PromptStatus.OK)
{
ed.WriteMessage("选择对象失败，退出");
return;
}
//出现添加扩展数据面板
AddEntityXDataForm addentityxdataform = new AddEntityXDataForm();
addentityxdataform.Show();
ObjectId objId = entRes.ObjectId;
Database db = HostApplicationServices.WorkingDatabase;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
RegAppTable appTbl = trans.GetObject(db.RegAppTableId, OpenMode.ForWrite) as RegAppTable;
string DateStr = DateTime.Now.ToString("yyyyMMddHHmmssms"); //日期
Random rd = new Random(); //用于生成随机数
string AppNamestr = DateStr + rd.Next(10, 99); //带日期的随机数
Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity;
if (!appTbl.Has(AppNamestr))
{
RegAppTableRecord appTblRcd = new RegAppTableRecord();
appTblRcd.Name = AppNamestr;
appTbl.Add(appTblRcd);
trans.AddNewlyCreatedDBObject(appTblRcd, true);
}
ResultBuffer resBuf = new ResultBuffer(
new TypedValue((int)DxfCode.ExtendedDataRegAppName, AppNamestr),
new TypedValue((int)DxfCode.ExtendedDataLayerName, "0"),
new TypedValue((int)DxfCode.ExtendedDataReal, 1.23479137438413E+40),
new TypedValue((int)DxfCode.ExtendedDataInteger16, 32767),
new TypedValue((int)DxfCode.ExtendedDataInteger32, 32767),
new TypedValue((int)DxfCode.ExtendedDataScale, 10),
new TypedValue((int)DxfCode.ExtendedDataWorldXCoordinate, new Point3d(10, 10, 0)));
resBuf.Add(new TypedValue((int)DxfCode.ExtendedDataAsciiString, "这是追加的数据"));
resBuf.Add(new TypedValue((int)DxfCode.ExtendedDataAsciiString, "我又一次追加了数据"));
resBuf.Add(new TypedValue((int)DxfCode.ExtendedDataInteger16, 32767));
if (ent.XData != null)
{
ed.WriteMessage("该对象已有扩展记录,不需要再次添加,只需在原有记录进行修改");
return;
}
ent.XData = resBuf;
trans.Commit();
}
}