Parameter Placeholders are causing an error in Webmatrix -


every time try using parameter placeholders either in select, insert, or update statement in webmatrix same error. works fine in clause. doing wrong need help.

here code:

  if (ispost && validation.isvalid())         {              admission1 = request["admdate1"];            discharge1 = request["disdate1"];            loc1 = request["loc1"];            program1 = request["programname1"];            notes = request["notes"];                       var sqlupdate = "update ssi_screening_new set admissiondate1=@49, dischargedate1=@50,  loc1=@51, programname1=@52, notes1=@53 (id) = (@0)";              db.execute(sqlupdate, admission1, discharge1, loc1, program1, notes, ssid);             if (modelstate.isvalid)             {                    response.redirect("~/thankyou");            }                      }

is there alternative using parameter placeholders in webmatrix?

here error every time:

exception details: system.data.sqlclient.sqlexception: must declare scalar variable "@49".

thanks in advance help!

you on right track, must start parameter placeholders @ @0, @1, @2, @3... , forth. can't jump @49, why it's saying must declare variable. try using @0 thru @5 , work.

           var sqlupdate = "update ssi_screening_new set admissiondate1=@0, dischargedate1=@1,  loc1=@2, programname1=@3, notes1=@4 (id) = (@5)";

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