优化DataGridUI；完善拖拽；

chr

2024-03-01 8d344c1b64a4b88fa78a46c0825f5d71c557a815

 ViewModels/ProgramListViewModel.cs

@@ -1,5 +1,4 @@
using CommonModel;
using System;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;