Getting Autopost from database into textbox

Sir, When I enter the id in the text boxes then if its correct then it will fill other textboxes details
String DocketNo = Docket_No.Text;
String Branch= From_STN.Text;
String Date = Date_Time.Text;
String PinCode = Pin_Code1.Text;
String Basis= Bassis.Text;
String To = To_STN.Text;
String ConsignorCode = Consignor_Code.Text;
String Consignee = Consignee_code.Text;
String PKTS = No_of_PKG.Text;
String ActWt = Actual_Wt.Text;
String ChargeWt = Charge_Wt.Text;
String TotalFreight = Grand_Total.Text;
String GoodsType= PKG_Type.Text;
String CODamount = COD.Text;
SqlConnection conn;
SqlCommand comm;
SqlDataReader reader;
string connnectionString = ConfigurationManager.ConnectionStrings["amitpandeyConnectionString"].ConnectionString;
conn = new SqlConnection(connnectionString);
if (Docket_No.Text == "") // IF match the scan ID
{


comm = new SqlCommand(@"SELECT Branch,Date,DocketNo,PinCode,basis,To,ConsignorCode,Consigee,PKTS,ActWT,ChargeWt,TotalFreight,GoodsType,CODamount FROM CraeteDocket Where Branch = @Branch and Date =@date and DocketNo = @DocketNo and PinCode = @PinCode and Basis = @basis and To = @To and ConsignorCode = @ConsignorCode and Consigee = @Consignee and PKTS = @PKTS and ActWt = @ActWt and ChargeWT = @ChargeWT and TotalFreight = @TotalFreight and GoodsType = @GoodsType and CODamount = @CODamount", conn);
}


conn.Open();



conn.Close();
}