I have installed Oracle client version 10g on my PC(Registry ORACLE_BASE-D:\oracle\product\10.2.0). I have added below references. System.Data.OracleClient.

I am getting above mentioned error. Below is the Code Snippet .

public static OracleConnection getConnection() 
    {

        try 
        {
            dataSource = new SqlDataSource();
            dataSource.ConnectionString = System.Configuration.ConfigurationManager.AppSettings.Get("conn");
            OracleConnection connection = new OracleConnection();
            if (dataSource == null) 
            {
                // Error during initialization of InitialContext or Datasource
                throw new Exception("###### Fatal Exception ###### - DataSource is not initialized.Pls check the stdout/logs.");
            } 
            else
            {
                connection.ConnectionString = dataSource.ConnectionString;
                connection.Open();
            }
            return connection;            
        }catch (Exception ex) 
        {
            throw ex;
        }  

    }

Please let me know what are the areas of Concern and where Iam missing.I am new for the combination of Oracle and Asp.Net.