AutoComplete Function problem (1 reply)

Hello guys,
I'm developing a Data Driven website using Visual Studio 2008 and Backend as out Favorite Mysql.
I want to design a function for search in the table which will be used for Ajax Extender purpose,for WebService purpose.
the table description of company Table

Field DataType
-------------------------
companyid int(11)
company varchar(60)

Data is
companyid company
1 ALEMAC
2 LIVON
5 VIZA

when i query
"SELECT * FROM `company` WHERE `company` LIKE '%vi%'" Data sown in PhpmyAdmin.


Now in the coding i had used this

public DataTable GetCompanyName(string strName)
{
string strConn = ConfigurationManager.ConnectionStrings["MahaveerConnectionString"].ConnectionString;
MySqlConnection con = new MySqlConnection(strConn);
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = con;
cmd.CommandType = CommandType.Text;//MySql.Data.
cmd.CommandText = "SELECT company FROM company WHERE company like '%?company%'";

MySqlParameter param = new MySqlParameter("?company", strName);
cmd.Parameters.Add(param);
DataSet objDs = new DataSet();
MySqlDataAdapter dAdapter = new MySqlDataAdapter();
dAdapter.SelectCommand = cmd;
con.Open();
dAdapter.Fill(objDs);
con.Close();
return objDs.Tables[0];

}

and it will bind the data ,after calling it

protected void Button1_Click(object sender, EventArgs e)
{
DataTable dt = GetCompanyName(TextBox1.Text);
GridView1.DataSource = dt;
GridView1.DataBind();

}
table is
The Information of table is
Type Collation Size Overhead
company MyISAM latin1_swedish_ci 2.1 KiB 20 B

It seems that the rows are showing in the backend but in the coding it is not fetching.
Please enlighten me .Thank you for your valuable support.