c# - When I click anywhere in my excel doc, while exporting data to that doc, it will throw: Exception from HRESULT: 0x800AC472 -


so code making excel document , loading lists in different sheets. now, whenever click on random cell stop loading data , give me expection: exception hresult: 0x800ac472 in visual studio. now, when press start debugging(f5) again finish excel doc , filling in rest of data. how can possibly fix this?

exceldatahandler.excel_create("c:\\users\\me\\desktop\\testmap\\testno3.xlsx"); (int = 0; < listoflists.count; i++) {      (int j = 1; j <= listoflists[i].count; j++)      {           exceldatahandler.excel_setvalue("b" + j, listoflists[i][j-1], (i+1));      } } exceldatahandler.excel_close("c:\\users\\me\\desktop\\testmap\\testno3.xlsx");

exceldatahandler:

    private static microsoft.office.interop.excel.applicationclass appexcel;     private static workbook newworkbook_first = null;     private static _worksheet objsheet = null;     private static _worksheet newsheets = null;    '  public void excel_create(string path)         {              try             {                 appexcel = new microsoft.office.interop.excel.applicationclass();                 appexcel.visible = true;                 newworkbook_first = appexcel.workbooks.add(1);                 newsheets = (microsoft.office.interop.excel._worksheet)newworkbook_first.sheets.add(type.missing, type.missing, 30, type.missing);             }             catch (exception e)             {                 console.write("error");             }                         {             }         }  public void excel_setvalue(string cellname, string value, int worksheet)         {             //error in line below   ((microsoft.office.interop.excel._worksheet)newworkbook_first.sheets[worksheet]).get_range(cellname).set_value(type.missing, value);         }  public void excel_close(string save)         {             if (save == "")             {             }             else             {                 newworkbook_first.saveas(save);             }             if (appexcel != null)             {                 try                 {                     newworkbook_first.close();                  //   system.runtime.interopservices.marshal.releasecomobject(appexcel.activeworkbook.activesheet);                 //    system.runtime.interopservices.marshal.releasecomobject(appexcel.activeworkbook);                     system.runtime.interopservices.marshal.releasecomobject(appexcel);                     appexcel = null;                     objsheet = null;                 }                 catch (exception ex)                 {                     appexcel = null;                     console.writeline("unable release object " + ex.tostring());                 }                                 {                     gc.collect();                 }             }         }

i tried this: (microsoft.office.interop.excel._worksheet)newworkbook_first.sheets[worksheet] = (_worksheet)appexcel.activeworkbook.activesheet; gave error

i did put in try/catch. , swallowed exception. idea provided @claies


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