sql server - incorrect syntax near the keyword where c#? -

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when run code erorr apeared incorrect syntax near keyword c#

public sqldatareader getdr(commandtype handelmode, string sqlstat, list<sqlparameter> parms) {     sqldatareader r = null;     sqlcommand com = new sqlcommand();     sqlconnection con = getconn();     try     {         com.commandtext = sqlstat;         com.connection = con;         com.commandtype = handelmode;          if (parms != null)         {             foreach (sqlparameter p in parms)             {                 com.parameters.add(p);             }         }          r = com.executereader(commandbehavior.closeconnection);      }     catch (exception ex)     {         messagebox.show(ex.message, "error", messageboxbuttons.ok);         return null;     }         {         con.close();     }     return r; } 


private void picturebox10_click_2(object sender, eventargs e) {      list<sqlparameter> parslist = new list<sqlparameter>();     string selectstatement = "select id,aname,ename,i_d " + screenmastertablename;     string cond = " id_co=@id_co";     parslist.add(new sqlparameter("@id_co", forminfo.id_co));      if (s_id.text != "")     {         decimal d = 0;         decimal.tryparse(s_id.text, out d);         cond += " , id=@id";         parslist.add(new sqlparameter("@id", d));     }     if (s_aname.text != "")     {         if (cond != "")             cond += " , ";         cond += " aname =@aname";         parslist.add(new sqlparameter("@aname", s_aname.text));     }      if (s_ename.text != "")     {         if (cond != "")             cond += " , ";         cond += " ename =@ename";         parslist.add(new sqlparameter("@ename", s_ename.text));     }     if (cond != "")         cond = " " + cond;       var l = bus.getsearcheddata(selectstatement + cond, parslist);     datagridview1.datasource = l;     label9.text = l.count.tostring(); }

assuming s_id filled in have query this:

where , id=@id

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