C# GridView ถ้าไม่ดึงข้อมูลเราเอาข้อมูลใส่ เองเลยได้ไหมคะ รบกวนด้วยคะ

DataTable dt = new DataTable();
DataRow dr = null;

//*** Column ***'
dt.Columns.Add("CustomerID");
dt.Columns.Add("Name");
dt.Columns.Add("Email");
dt.Columns.Add("CountryCode");
dt.Columns.Add("Budget");
dt.Columns.Add("Used");

//*** Rows ***'
dr = dt.NewRow();
dr["CustomerID"] = "C001";
dr["Name"] = "Win Weerachai";
dr["Email"] = "[email protected]";
dr["CountryCode"] = "TH";
dr["Budget"] = "1000000";
dr["Used"] = "600000";
dt.Rows.Add(dr);

Session("SessionDt") = dt;

DataTable dt = Session("SessionDt");
DataRow dr = null;


//*** Rows ***'
dr = dt.NewRow();
dr["CustomerID"] = "xxxx";
dr["Name"] = "xxxx";
dr["Email"] = "xxxxxxxx";
dr["CountryCode"] = "TH";
dr["Budget"] = "1000000";
dr["Used"] = "600000";
dt.Rows.Add(dr);

Session("SessionDt") = dt;

DataTable dt = new DataTable();
DataRow dr = null;

//*** Column ***'
dt.Columns.Add("CustomerID");
dt.Columns.Add("Name");
dt.Columns.Add("Email");
dt.Columns.Add("CountryCode");
dt.Columns.Add("Budget");
dt.Columns.Add("Used");

//*** Rows ***'
dr = dt.NewRow();
dr["CustomerID"] = "C001";
dr["Name"] = "Win Weerachai";
dr["Email"] = "[email protected]";
dr["CountryCode"] = "TH";
dr["Budget"] = "1000000";
dr["Used"] = "600000";
dt.Rows.Add(dr);

Session("myCart") = dt;

DataTable dt = (DataTable)Session("myCart");
DataRow dr = null;

//*** Rows ***'
dr = dt.NewRow();
dr["CustomerID"] = "C003";
dr["Name"] = "Tony Stark";
dr["Email"] = "[email protected]";
dr["CountryCode"] = "US";
dr["Budget"] = "3000000";
dr["Used"] = "600000";
dt.Rows.Add(dr);

Session("myCart") = dt;

this.GridView.DataSource = (DataTable)Session("myCart");
this.DataBid();