sql - There are not enough fields in the Structured type. Structured types must have at least one field C# -


i have problem in winforms, when pass data-table sql-server through store procedure, got error same title question. can me solve ?

method execdb in class dbhelper connect sql , pass data :

public static dataset execdb(string procname, params object[] obj)         {             sqlconnection sqlcon = new sqlconnection(constring);             if (sqlcon.state == connectionstate.closed) sqlcon.open();             sqldataadapter da = new sqldataadapter(procname, sqlcon);             da.selectcommand.commandtype = commandtype.storedprocedure;             sqlcommandbuilder.deriveparameters(da.selectcommand);             if (da.selectcommand.parameters.count - 1 != obj.length) throw new exception("error");             int index = 0;             foreach (sqlparameter pr in da.selectcommand.parameters)             {                 if (pr.direction == parameterdirection.input || pr.direction == parameterdirection.inputoutput)                 {                     pr.value = obj[index++];                     //pr.sqldbtype = sqldbtype.structured;                 }             }             dataset ds = new dataset();             da.fill(ds);             if (sqlcon.state == connectionstate.open) sqlcon.close();             return ds;         }

here's datatable pass:

datatable dt = new datatable(); dt.clear(); dt.columns.add("ngaygiam", typeof(datetime)); dt.columns.add("tile", typeof(int)); dt.columns.add("thang", typeof(string)); dt.columns.add("mamon", typeof(int)); datarow dr = dt.newrow(); dr["ngaygiam"] =convert.todatetime(i.subitems[0].text); dr["tile"] =convert.toint32(tbxtilegiam.text); dr["thang"] = twomonth.substring(twomonth.length - 2) + datetime.now.year; dr["mamon"] = convert.toint32(i.tag.tostring()); dt.rows.add(dr);

and here's structure in sql:

create type banggiamgia table( ngaygiam date not null, tile int not null, thang varchar(6) not null, mamon int not null )

and proc in sql :

create proc sp_updategiamgia @temp banggiamgia readonly begin     insert giamgia select b.ngaygiam, b.tile, b.thang, b.mamon @temp b     select * giamgia month(ngaygiam) = month(getdate()) , year(ngaygiam) = year(getdate()) end

i don't understand why it's. pls explain me.

thanks.


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