XdCxRhDW/XdCxRhDW.App/UserControl/CtrlCxRes.cs

using DevExpress.XtraEditors;
using DevExpress.XtraGrid.Views.Grid;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Entity;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Documents;
using System.Windows.Forms;
using XdCxRhDW.Repostory.EFContext;
using XdCxRhDW.Repostory.Model;

namespace XdCxRhDW.App.UserControl
{
    public partial class CtrlCxRes : DevExpress.XtraEditors.XtraUserControl
    {
        public CtrlCxRes()
        {
            InitializeComponent();
        }

        private async void CtrlCxRes_Load(object sender, EventArgs e)
        {
            try
            {
                gridCx.Init<CxRes>().UseSort().UseFilter().UseMultiSelect().UseRowNumber();
                using (RHDWContext db = new RHDWContext())
                {
                    gridCx.DataSource = await db.CxRes.OrderByDescending(p => p.SigTime).ToListAsync();
                }
            }
            catch (Exception ex)
            {
                Serilog.Log.Error(ex, "查询测向结果异常");
                DxHelper.MsgBoxHelper.ShowError("查询测向结果异常");
            }
        }

        private async void btnDel_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            try
            {
                var ids = gridView1.GetSelectedRows();
                using (RHDWContext db = new RHDWContext())
                {
                    foreach (var id in ids)
                    {
                        var item = gridView1.GetRow(id) as CxRes;
                        var delItem = await db.CxRes.Where(p => p.ID == item.ID).FirstOrDefaultAsync();
                        if (delItem != null)
                        {
                            db.CxRes.Remove(delItem);
                        }
                    }
                    await db.SaveChangesAsync();
                }
                gridView1.DeleteSelectedRows();

            }
            catch (Exception ex)
            {
                Serilog.Log.Error(ex, "删除测向结果异常");
                DxHelper.MsgBoxHelper.ShowError("删除测向结果异常");
            }
        }

        private void gridView1_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e)
        {
            if (gridView1.FocusedRowHandle < 0) return;
            if (!gridView1.GetSelectedRows().Any())
            {
                btnDel.Visibility = DevExpress.XtraBars.BarItemVisibility.Never;
            }
            else
            {
                btnDel.Visibility = DevExpress.XtraBars.BarItemVisibility.Always;
            }
            popupMenu2.ShowPopup(MousePosition);
        }
    }
}