转载：chart的数据库绑定，有一丢丢方法
但是还是有问题：“找不到名为 score 的列” ?

	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 String^ cmdText = String::Format("SELECT ID,课程号,学时 FROM 学生kcb");
				 Data::OleDb::OleDbCommand^ cmd = gcnew Data::OleDb::OleDbCommand(cmdText, oleDbConnection1);
				 OleDbDataAdapter^ da1 = gcnew OleDbDataAdapter(cmdText, oleDbConnection1);
				 DataTable^ table = gcnew DataTable;
				 da1->Fill(table);

				 chart1->DataSource = table->DefaultView;
				// chart1->Series["Series1"]->DataBindTable(table,"ID");
				 //chart1->Series["Series1"]->Points->DataBindY = table;
				   chart1->DataBindCrossTable(table->DefaultView,"ID" , "课程号", "学时", "label=score");
				 //chart1->Series["Series1"]->Points->DataBind(table->DefaultView, "课程号", "学时", "Tooltip=Price{c1}");
				// chart1->DataBind();

	}