c# 4.0 - C# AutoCAD load linetype to drawing -


i'm trying load linetype active document can set layers linetype 1 i'm trying load. problem when try load it, autocad giving me exception of: ewasopenforread. tried send via command line , worked, application im writing ended... have idea why happening?

code:

        private void defaultlayerfix() {          // open transaction fixing layers have correct name         // not correct color or linetype.         using(curtrans = db.transactionmanager.startopenclosetransaction()) {              // open layertable , linetype table read.             dwglyrtbl = curtrans.getobject(                 db.layertableid,openmode.forread) layertable;             aclintbl = curtrans.getobject(                 db.linetypetableid,openmode.forread) linetypetable;              // check each layer against standard layers dataset.             foreach (objectid layid in dwglyrtbl) {                 layertablerecord curlayer = curtrans.getobject(                     layid,openmode.forread) layertablerecord;                  var layerfound = _layerdatatable.rows.find(curlayer.name.toupper());                 if(layerfound != null){                      // upgrade layertable , layerrecord write.                     dwglyrtbl.upgradeopen();                     curlayer.upgradeopen();                       // modify color of layer                     curlayer.color = autodesk.autocad.colors.color.fromcolorindex(                         autodesk.autocad.colors.colormethod.byaci, (short)layerfound[2]);                      // tried put in own transaction in hopes help.. didnt                     using(transaction temptrans = db.transactionmanager.startopenclosetransaction()){                          // if layer not loaded in current dwg                         if(!aclintbl.has((string)layerfound[3]))                              try {                                 db.loadlinetypefile((string)layerfound[3], "acad.lin");                             } catch (autodesk.autocad.runtime.exception e) {                                 editor ed = acdoc.editor;                                 ed.writemessage(e.message);                             }                      temptrans.commit();                     }                      // change current layer linetype to...                     curlayer.linetypeobjectid = aclintbl[(string)layerfound[3]];                      // downgrade layertable, linetable , layerrecord read.                     curlayer.downgradeopen();                     dwglyrtbl.downgradeopen();                      // remove layer standards list                     // not attempt have redundant layers.                     for(int = _layerdatatable.rows.count-1; >= 0; i--) {                         system.data.datarow dr = _layerdatatable.rows[i];                         if (dr["name"] == layerfound[0]){                             dr.delete();                             break;                         }                     }                 } else {                      // if layer not in within standard add data set                     // fix manually.                     if(curlayer.name == "0")                         continue;                     var newrow = layerstofix.newrow();                     newrow["name"] = curlayer.name;                     // todo color name..                     newrow["color"] = curlayer.color.colorname;                     newrow["color_id"] = 0;                     linetypetablerecord ltype = (linetypetablerecord)curtrans.getobject(                         curlayer.linetypeobjectid,openmode.forread                     );                     newrow["linetype"] = ltype.name;                     layerstofix.rows.add(newrow);                 }             }             // accept changes made in transaction             curtrans.commit();         }     }

all openmodes forread.

if you're trying change in drawing, should use forwrite in part you're trying change drawing. (i'm not sure if exact word that, idea that).


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