DataSimulation/DataSimulation.Forms/UserControl/CtrlHistoryTask.cs

using DataSimulation.Repostory.Model;
using DevExpress.Utils.Html;
using DevExpress.XtraEditors;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Entity;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using DataSimulation.Repostory.EFContext;
using DataSimulation.Forms.EditForms;
using DataSimulation.Repostory;
using System.Threading.Tasks;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TextBox;

namespace DataSimulation.Forms.UserControl
{
    public partial class CtrlHistoryTask : DevExpress.XtraEditors.XtraUserControl
    {
        List<TaskInfo> list = new List<TaskInfo>();
        public CtrlHistoryTask()
        {
            InitializeComponent();
        }
        private async void CtrlAnt_Load(object sender, EventArgs e)
        {
            try
            {
                gridHistoryTask.Init<TaskInfo>().UseSort().UseFilter().UseMultiSelect().UseRowNumber();
                gridHistoryTask.DataSource = list;
                var taskListCache = await TaskCache.GetAllAsync();
                list.AddRange(taskListCache.Where(w=>w.isHistory));
                gridView1.RefreshData();
            }
            catch (Exception ex)
            {
                Serilog.Log.Error(ex, "查询历史任务信息异常");
                DxHelper.MsgBoxHelper.ShowError("查询历史任务信息异常");
            }
        }
        private void gridView1_PopupMenuShowing(object sender, DevExpress.XtraGrid.Views.Grid.PopupMenuShowingEventArgs e)
        {
            if (gridView1.GetSelectedRows().Any())
            {
                btnDel.Visibility = DevExpress.XtraBars.BarItemVisibility.Always;
            }
            else
            {
                btnDel.Visibility = DevExpress.XtraBars.BarItemVisibility.Never;
            }
            popupMenu1.ShowPopup(MousePosition);
        }

      
        private async void btnDel_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            try
            {
                if (XtraMessageBox.Show("确认删除选择的历史任务信息?", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != DialogResult.Yes)
                {
                    return;
                }
                var ids = gridView1.GetSelectedRows();

                foreach (var id in ids)
                {
                    var info = gridView1.GetRow(id) as TaskInfo;
                    using (SimulationPartContext db = SimulationPartContext.GetContext(info.CreateTime))
                    {
                        var items = db.TaskInfos.Where(p => p.ID == id);
                        if (items == null) return;
                        db.TaskInfos.RemoveRange(items);
                        await db.SaveChangesAsync();
                    }
                }
                gridView1.DeleteSelectedRows();
            }
            catch (Exception ex)
            {
                Serilog.Log.Error(ex, "删除历史任务信息异常");
                DxHelper.MsgBoxHelper.ShowError("删除历史任务信息异常");
            }
        }
        private void gridView1_CustomDrawEmptyForeground(object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)
        {
            if (gridView1.RowCount == 0)
            {
                string txt = "暂无历史任务";
                var s = e.Appearance.CalcTextSize(e.Cache, txt, e.Bounds.Width).ToSize();
                var x = (e.Bounds.Width - s.Width) / 2;
                var y = (e.Bounds.Height - s.Height) / 2;
                e.Appearance.ForeColor = Color.Gray;
                e.Appearance.DrawString(e.Cache, txt, new Rectangle(x, y, s.Width, s.Height));
            }
        }


    }
}