add data in mysqldatabase using C# - mysql

Question

Is my first time to using mysql as the backend for my ASP.NET application.
Am trying to Insert data into the table, but I keep having this error.
I have install the mysql connector. Can some one tell me where am doing wrong.
here is the error:
MySql.Data.MySqlClient.MySqlException was unhandled by user code
HResult=-2147467259
Message=You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Source=MySql.Data
ErrorCode=-2147467259
Number=1064
StackTrace:
at MySql.Data.MySqlClient.MySqlStream.ReadPacket()
at MySql.Data.MySqlClient.NativeDriver.GetResult(Int32& affectedRow, Int64& insertedId)
at MySql.Data.MySqlClient.Driver.GetResult(Int32 statementId, Int32& affectedRows, Int64& insertedId)
at MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force)
at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
at Agohealth.Requestlab.btnsubmit_Click(Object sender, EventArgs e) in C:\Users\PC3\Documents\Visual Studio 2010\Projects\Agohealth\Agohealth\LabRequest.aspx.cs:line 38
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException:
My code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using MySql.Data.MySqlClient;
namespace hiredad
{
public partial class Requestlab : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnsubmit_Click(object sender, EventArgs e)
{
string connectionstring = ConfigurationManager.ConnectionStrings["LocalMySqlServer"].ConnectionString;
using (MySqlConnection conn = new MySqlConnection(connectionstring))
{
MySqlCommand cmd = new MySqlCommand();
conn.CreateCommand();
cmd.Connection = conn;
conn.Open();
cmd.CommandText=("INSERT INTO labrequest (Examination,TestName,RequestCode,PatientNumber,Date,Doctor)"
+ ("VALUES (?Examination,?TestName,?RequestCode,?PatientNumber,?Date,?Doctor"));
cmd.Parameters.Add("?Examination", MySqlDbType.VarChar).Value = DropDownList1.SelectedValue;
cmd.Parameters.Add("?TestName", MySqlDbType.VarChar).Value = dlistlabtestname.SelectedValue;
cmd.Parameters.Add("?RequestCode", MySqlDbType.VarChar).Value = txtrequestcode.Text;
cmd.Parameters.Add("?PatientNumber", MySqlDbType.VarChar).Value = txtreginum.Text;
cmd.Parameters.Add("?Date", MySqlDbType.Date).Value = labdate.Text;
cmd.Parameters.Add("?Doctor", MySqlDbType.VarChar).Value = txtdoctor.Text;
cmd.ExecuteNonQuery();
Message.Text = "Sucessfully inserted!";
}
}
}