How to handle formview and gridview when underlying table is empty?

objectdatasource is used here.

   private bool LoadDataEmpty
    {
        get { return (bool)(ViewState["LoadDataEmpty"] ?? false); }
        set { ViewState["LoadDataEmpty"] = value; }
    }

    protected void ObjectDataSource1_Selected(object sender, ObjectDataSourceStatusEventArgs e)
    {
        //  bubble exceptions before we touch e.ReturnValue
        if (e.Exception != null)
        {
            throw e.Exception;
        }
        // get the DataTable from the ODS select mothod
        DataTable dataTable = (DataTable)((DataSet)e.ReturnValue).Tables[0];

        // if rows=0 then add a dummy (null) row and set the LoadDataEmpty flag.
        if (dataTable.Rows.Count == 0)
        {
            DataRow row = dataTable.NewRow();
            row[0] = 1;
            row[1] = "";
            row[2] = "";
            row[3] = "";
            row[4] = "";
            row[5] = DateTime.Now.ToString();
            dataTable.Rows.Add(row);
            LoadDataEmpty = true;
        }
        else
        {
            LoadDataEmpty = false;
        }

    }
    protected void EditGrid_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (LoadDataEmpty && e.Row.RowType == DataControlRowType.DataRow)
        {
            e.Row.Visible = false;
            e.Row.Controls.Clear();
        }
    }

web.config


connectionString
add name="FlowerConnectionString" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\flower.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"



connection
SqlConnection conn = new SqlConnection(
ConfigurationManager.ConnectionStrings["FlowerConnectionString"].ConnectionString);

public static SqlDataAdapter CreateCustomerAdapter(
SqlConnection connection)
{
SqlDataAdapter adapter = new SqlDataAdapter();

// Create the SelectCommand.
SqlCommand command = new SqlCommand("SELECT * FROM Customers " +
"WHERE Country = @Country AND City = @City", connection);

// Add the parameters for the SelectCommand.
command.Parameters.Add("@Country", SqlDbType.NVarChar, 15);
command.Parameters.Add("@City", SqlDbType.NVarChar, 15);

adapter.SelectCommand = command;

// Create the InsertCommand.
command = new SqlCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (@CustomerID, @CompanyName)", connection);

// Add the parameters for the InsertCommand.
command.Parameters.Add("@CustomerID", SqlDbType.NChar, 5, "CustomerID");
command.Parameters.Add("@CompanyName", SqlDbType.NVarChar, 40, "CompanyName");

adapter.InsertCommand = command;

// Create the UpdateCommand.
command = new SqlCommand(
"UPDATE Customers SET CustomerID = @CustomerID, CompanyName = @CompanyName " +
"WHERE CustomerID = @oldCustomerID", connection);

// Add the parameters for the UpdateCommand.
command.Parameters.Add("@CustomerID", SqlDbType.NChar, 5, "CustomerID");
command.Parameters.Add("@CompanyName", SqlDbType.NVarChar, 40, "CompanyName");
SqlParameter parameter = command.Parameters.Add(
"@oldCustomerID", SqlDbType.NChar, 5, "CustomerID");
parameter.SourceVersion = DataRowVersion.Original;

adapter.UpdateCommand = command;

// Create the DeleteCommand.
command = new SqlCommand(
"DELETE FROM Customers WHERE CustomerID = @CustomerID", connection);

// Add the parameters for the DeleteCommand.
parameter = command.Parameters.Add(
"@CustomerID", SqlDbType.NChar, 5, "CustomerID");
parameter.SourceVersion = DataRowVersion.Original;

adapter.DeleteCommand = command;

return adapter;
}

    public void DeleteUser(string user_id)
        {
            InitUser();
            DataRow workRow = _dsUsers.Tables[0].Rows.Find(user_id);
            workRow.Delete();
            _daUsers.Update(_dsUsers,"users");
            _dsUsers.AcceptChanges();
            TermUser();
            //dsUsers.WriteXml(filePath, XmlWriteMode.WriteSchema);
        }