【转帖】请教：为什么新建的表格（table)没有在图上显示出来
 

请教：为什么新建的表格（table)没有在图上显示出来
请教：为什么新建的表格（table)没有在图上显示出来
void createandsetdatalink()
{
acad::errorstatus es;
acdbtable *ptbl;
ptbl = new acdbtable();
const tchar *ptblstyle = acrx_t("my_style");

// set the table style
acdbdictionary *pdict = null;
acdbobjectid idtblstyle;
acdbhostapplicationservices()->workingdatabase()->gettablestyledictionary(pdict,acdb::kforwrite);
es = pdict->getat(ptblstyle,idtblstyle);
pdict->close();


if(acad::eok == es) ptbl->settablestyle(idtblstyle);
settablecolandrows(ptbl, 5, 5);
ptbl->settextstring(3,3,l"my love");
ptbl->generatelayout(); // very very important, else expect crashes later on
if(null == ptbl)
{
acutprintf(acrx_t("\nselected entity was not a table!"));
return;
}
// get an excel file
//
struct resbuf *result;
int rc;
if ( (result = acutnewrb(rtstr)) == null)
{
ptbl->close();
acutprintf(acrx_t("\nunable to allocate buffer!"));
return;
}
result->resval.rstring=null;
rc = acedgetfiled( acrx_t("excel file"), // title
acrx_t("c:\\"), // default pathname
acrx_t("xls"), // default extension
16, // control flags
result); // the path selected by the user.
if (rc != rtnorm)
{
ptbl->close();
acutprintf(acrx_t("\nerror in selecting an excel file!"));
return;
}
// retrieve the file name from the resbuf.
achar filename[max_path];
_tcscpy(filename, result->resval.rstring);
rc = acutrelrb(result);
static achar smydatalink[max_path] = acrx_t("tllink");
// get the data link manager.
acdbdatalinkmanager* pdlman = acdbhostapplicationservices()->workingdatabase()->getdatalinkmanager();
assert(pdlman);
acdbobjectid iddl;
acdbdatalink *pdl = null;
// check if a data link with the name already exists. if so, remove it.
if( pdlman->getdatalink(smydatalink, pdl, acdb::kforread) == acad::eok && pdl)
{
pdl->close();
es = pdlman->removedatalink(smydatalink, iddl);
if( es != acad::eok )
{
ptbl->close();
acutprintf(acrx_t("\nerror in removing the data link!"));
return;
}
}

// create a data link with the name.
es = pdlman->createdatalink(acrx_t("acexcel"), smydatalink, acrx_t("this is a test for excel type data link."), filename, iddl);
if( es != acad::eok )
{
ptbl->close();
acutprintf(acrx_t("\nerror in creating data link!\nplease check if there is a sheet named 'sheet1' in the xls file."));
return;
}
// open the data link.
es = acdbopenobject<acdbdatalink>(pdl, iddl, acdb::kforwrite);
if ( es != acad::eok || !pdl )
{
ptbl->close();
acutprintf(acrx_t("\nerror in opening the data link object!"));
return;
}
// set options of the data link
es = pdl->setoption(acdb::kdatalinkoptionpersistcache);
es = pdl->setupdateoption(pdl->updateoption() | acdb::kupdateoptionallowsourceupdate);
// close the data link.
pdl->close();
// set data link to the table object at cell(2,2).
es = ptbl->setdatalink(0,0, iddl, true);
if( es != acad::eok )
{
ptbl->close();
acutprintf(acrx_t("\nerror in setting data link to the selected table!\nplease check if there is a sheet named 'sheet1' in the xls file."));
return;
}
ptbl->setposition(acgepoint3d(0, 0, 0));
// don't forget to close the table object.
ptbl->close();
}
忘记了一条语句
不好意思,原因找到了, 在ptbl->close();语句前面加上addenttodwg(acdbhostapplicationservices()->workingdatabase(),ptbl);
加上后一切就ok了.