private void btnBlock_Click(object sender, EventArgs e)
{

double[] insertionPoint = new double[3];
insertionPoint[0] = 0;
insertionPoint[1] = 0;
insertionPoint[2] = 0.0;
string progid = "ObjectDBX.AxDbDocument.22";
dbx.AxDbDocument dbxDoc;
dbxDoc = (dbx.AxDbDocument)m_acadApp.GetInterfaceObject(progid);
dbxDoc.Open("F:\\Testblock.dwg");//包含多個塊的檔案
AcadBlock block = (AcadBlock)dbxDoc.Blocks.Item("Testblock");//Testblock 該塊只是檔案中的其中一個，可以將其引數化
AcadObject[] obj = new AcadObject[1];
obj[0] = (AcadObject)block;
AcadExternalReference xrefInserted;
xrefInserted = dbxDoc.CopyObjects(obj, m_acadApp.ActiveDocument.Database.Blocks);//將塊資訊拷貝到當前塊集合中
m_acadApp.ActiveDocument.ModelSpace.InsertBlock(insertionPoint, "Testblock", 1, 1, 1, 0);//插入到當前檔案
m_acadApp.ZoomAll();
}

//建立塊並插入塊參照

double[] insertionPoint = new double[3];
insertionPoint[0] = 0;
insertionPoint[1] = 0;
insertionPoint[2] = 0.0;
AcadBlock destBlock = m_acadApp.ActiveDocument.Blocks.Add(insertionPoint, "TestBlock");
double[] startPoint = new double[3] { 0, 0, 0 };
double[] endPoint = new double[3] { 100, 100, 100 };
destBlock.AddLine(startPoint, endPoint);
m_acadApp.ActiveDocument.ModelSpace.AttachExternalReference(pathname, "TestBlock", insertionPoint, 1, 1, 1, 0, false);
m_acadApp.ZoomAll();
m_acadApp.Application.Update();