using DevExpress.Utils;
using DevExpress.XtraGrid.Columns;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;
using System.ComponentModel;

namespace Verify
{
    /// <summary>
    /// GridView的拓展类
    /// </summary>
    public static class GridViewExtend
    {
        #region 默认

        /// <summary>
        /// 普通视图设置
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetNormalView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = true;
            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = false;
            grid.OptionsCustomization.AllowSort = true;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.ShowIndicator = false;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsView.ShowDetailButtons = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = false;
            grid.OptionsBehavior.ReadOnly = true;


            //grid.OptionsView.EnableAppearanceOddRow = true;   // 使能 // 和和上面绑定 同时使用有效
            //grid.Appearance.EvenRow.BackColor = Color.FromArgb(244, 248, 251);  // 设置偶数行颜色
            //grid.OptionsView.EnableAppearanceEvenRow = true;
            //grid.Appearance.OddRow.BackColor = Color.White; // 设置偶数行颜色

            grid.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder;
            grid.OptionsFind.ShowCloseButton = false;

            grid.RowHeight = height;
            grid.BestFitColumns();

        }

        /// <summary>
        /// 限制功能的视图
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetLimitView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = false;
            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = false;
            grid.OptionsCustomization.AllowSort = false;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = false;
            grid.OptionsBehavior.ReadOnly = true;

            grid.OptionsView.EnableAppearanceOddRow = true;   // 使能 // 和和上面绑定 同时使用有效
            grid.Appearance.EvenRow.BackColor = Color.FromArgb(244, 248, 251);  // 设置偶数行颜色
            grid.OptionsView.EnableAppearanceEvenRow = true;
            grid.Appearance.OddRow.BackColor = Color.White; // 设置偶数行颜色


            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();
        }

        /// <summary>
        /// 普通编辑视图设置
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetNormalEditView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = true;

            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = true;
            grid.OptionsCustomization.AllowSort = true;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = true;
            grid.OptionsBehavior.ReadOnly = false; 

            /*grid.OptionsView.EnableAppearanceOddRow = true;
            grid.OptionsView.EnableAppearanceEvenRow = true;
            grid.Appearance.OddRow.BackColor = Color.White;
            grid.Appearance.EvenRow.BackColor = Color.FromArgb(244, 248, 251);*/


            grid.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder;
            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();

            grid.OptionsFilter.AllowFilterEditor = false;
            grid.OptionsFind.ShowCloseButton = false;
            grid.OptionsCustomization.AllowSort = false;
            grid.OptionsCustomization.AllowFilter = false;

        }

        /// <summary>
        /// 限制功能的编辑视图
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetLimitEditView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = false;

            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = false;
            grid.OptionsCustomization.AllowSort = false;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = true;
            grid.OptionsBehavior.ReadOnly = false;

            grid.OptionsView.EnableAppearanceOddRow = true;   // 使能 // 和和上面绑定 同时使用有效
            grid.Appearance.EvenRow.BackColor = Color.FromArgb(244, 248, 251);  // 设置偶数行颜色
            grid.OptionsView.EnableAppearanceEvenRow = true;
            grid.Appearance.OddRow.BackColor = Color.White; // 设置偶数行颜色


            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();
        }

        /// <summary>
        /// 绑定普通编辑视图设置
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetBindingNormalEditView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = true;

            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = true;
            grid.OptionsCustomization.AllowSort = true;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.Bottom;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = true;
            grid.OptionsBehavior.ReadOnly = false;

            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();
        }

        /// <summary>
        /// 绑定限制编辑视图设置
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetBindingLimitEditView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = false;
            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = false;
            grid.OptionsCustomization.AllowSort = false;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.Bottom;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = true;
            grid.OptionsBehavior.ReadOnly = false;

            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();


        }

        /// <summary>
        /// 显示ViewCaption
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void ShowViewCaption(this GridView grid, int height = 35)
        {
            grid.OptionsView.ShowViewCaption = true;
            grid.ViewCaptionHeight = height;
            grid.Appearance.ViewCaption.TextOptions.HAlignment = HorzAlignment.Near;
        }


        /// <summary>
        /// GridView注册显示行标
        /// </summary>
        /// <param name="grid"></param>
        public static void RegistCustomDrawRowIndicator(this GridView grid, int IndicatorWidth = 35)
        {
            grid.OptionsView.ShowIndicator = true;
            grid.IndicatorWidth = IndicatorWidth;
            grid.CustomDrawRowIndicator += (sender, e) =>
            {
                if (e.Info.IsRowIndicator && e.RowHandle >= 0)
                {
                    e.Info.DisplayText = (e.RowHandle + 1).ToString().Trim();
                    e.Appearance.TextOptions.HAlignment = HorzAlignment.Far;
                }
            };
        }

        /// <summary>
        /// 注册自定义组名
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="col"></param>
        /// <param name="func"></param>
        public static void RegistCustomGroupRow(this GridView grid, GridColumn col, Func<object, string> func)
        {
            grid.CustomDrawGroupRow += (sender, e) =>
            {
                var gridGroupRowInfo = e.Info as GridGroupRowInfo;
                if (gridGroupRowInfo.Column == col)
                {
                    var index = grid.GetDataRowHandleByGroupRowHandle(e.RowHandle);
                    var row = grid.GetRow(index);
                    if (row == null)
                        return;
                    gridGroupRowInfo.GroupText = func(row);
                }
            };
        }

        /// <summary>
        /// 自定义单元格样式
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="bgColor"></param>
        /// <param name="foreColor"></param>
        public static void RegistCustomDrawCell(this GridView grid, Color? bgColor = null, Color? foreColor = null)
        {
            if (bgColor == null)
                bgColor = Color.FromArgb(0, 122, 204);
            if (foreColor == null)
                foreColor = Color.White;
            grid.CustomDrawCell += (sender, e) =>
            {
                if (e.RowHandle == (sender as GridView).FocusedRowHandle)
                {
                    var cell = e.Cell as GridCellInfo;
                    if (!cell.IsMerged)
                    {
                        e.Appearance.BackColor = bgColor.Value;
                        e.Appearance.ForeColor = foreColor.Value;
                    }
                }
            };
        }

        /// <summary>
        /// 获取当前数据行
        /// </summary>
        public static T GetCurrentViewModel<T>(this GridView grid, List<T> source) where T : class
        {
            if (source == null)
                return default;
            if (source.Count < 1)
            {
                return default;
            }
            var row = grid.GetFocusedRow() as T;
            if (row == null)
            {
                return null;
            }
            return row;
        }

        /// <summary>
        /// 获取当前数据行
        /// </summary>
        public static T GetCurrentViewModel<T>(this GridView grid, BindingList<T> source) where T : class
        {
            if (source == null)
                return default;
            if (source.Count < 1)
            {
                return default;
            }
            var row = grid.GetFocusedRow() as T;
            if (row == null)
            {
                return null;
            }
            return row;
        }

        #endregion

        /// <summary>
        /// 绑定按列分组视图设置 Nsx_20210729
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="col"></param>
        /// <param name="height"></param>
        public static void SetGroupView(this GridView grid, GridColumn col, int height = 35)
        {
            grid.GroupCount = 1;
            grid.RowHeight = height;
            grid.GroupRowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.OptionsBehavior.ReadOnly = true;
            grid.OptionsBehavior.Editable = false;
            grid.OptionsView.ShowDetailButtons = false;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.OptionsBehavior.AllowFixedGroups = DefaultBoolean.True;
            grid.OptionsBehavior.AllowPixelScrolling = DefaultBoolean.True;
            grid.OptionsClipboard.ClipboardMode = DevExpress.Export.ClipboardMode.Formatted;
            grid.OptionsBehavior.AutoExpandAllGroups = true;
            grid.OptionsFind.AlwaysVisible = false;
            grid.OptionsPrint.PrintHorzLines = false;
            grid.OptionsPrint.PrintPreview = true;
            grid.OptionsPrint.PrintVertLines = false;
            grid.OptionsView.GroupDrawMode = GroupDrawMode.Office;
            grid.OptionsView.ShowGroupedColumns = true;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsView.ShowIndicator = false;
            grid.OptionsView.ShowVerticalLines = DefaultBoolean.False;
            grid.PreviewFieldName = "PlainText";
            grid.SortInfo.AddRange(new GridColumnSortInfo[] {
            new GridColumnSortInfo(col, DevExpress.Data.ColumnSortOrder.None)});
            grid.BestFitColumns();
        }


        ///// <summary>
        ///// 导出Excel
        ///// </summary> 
        //public static void ExportExcel(this GridView grid)
        //{
        //    var path = ExcelSaveFilePathHelper.SaveFilePathName();
        //    if (string.IsNullOrEmpty(path)) return;
        //    grid.OptionsPrint.PrintDetails = true;//导出明细
        //    grid.OptionsPrint.ExpandAllDetails = true;//导出所有明细，false的话，只会导出展开的明细
        //    grid.ExportToXlsx(path, new DevExpress.XtraPrinting.XlsxExportOptionsEx() { ExportType = DevExpress.Export.ExportType.WYSIWYG, TextExportMode = DevExpress.XtraPrinting.TextExportMode.Text });
        //    DialogResult dr = XtraMessageBox.Show("导出成功！是否打开刚刚保存的Excel文件？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
        //    if (dr != DialogResult.OK)
        //        return;
        //    System.Diagnostics.Process.Start(path);
        //}
        /*
                /// <summary>
                /// 导出Excel
                /// </summary> 
                public static void ExportExcel(this GridView grid, DocumentPage page, string pageOperateInfo)
                { 
                    page.ShowCmdOperateInfo("导出列表信息到Excel");
                    var path = ExcelSaveFilePathHelper.SaveFilePathName();
                    page.ShowCmdOperateInfo(pageOperateInfo);
                    if (string.IsNullOrEmpty(path)) return;
                    grid.OptionsPrint.PrintDetails = true;//导出明细
                    grid.OptionsPrint.ExpandAllDetails = true;//导出所有明细，false的话，只会导出展开的明细
                    grid.ExportToXlsx(path, new DevExpress.XtraPrinting.XlsxExportOptionsEx() { ExportType = DevExpress.Export.ExportType.WYSIWYG, TextExportMode = DevExpress.XtraPrinting.TextExportMode.Text });
                    DialogResult dr = XtraMessageBox.Show("导出成功！是否打开刚刚保存的Excel文件？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
                    if (dr != DialogResult.OK)
                        return;
                    System.Diagnostics.Process.Start(path);
                }*/


        /// <summary>
        /// 主表视图颜色样式设置
        /// </summary>
        /// <param name="grid"></param>
        public static void SetGridMianViewColor(this GridView grid)
        {
            var focusRowColor = Color.LightBlue;// Color.FromName(Skin.FocusRowColor);
            //聚焦
            grid.Appearance.FocusedRow.Options.UseBackColor = true;
            grid.Appearance.FocusedRow.BackColor = focusRowColor;
            grid.Appearance.FocusedCell.Options.UseBackColor = true;
            grid.Appearance.FocusedCell.BackColor = focusRowColor;


            //奇偶行颜色
            grid.OptionsView.EnableAppearanceOddRow = true;
            grid.Appearance.OddRow.Options.UseBackColor = true;
            grid.Appearance.OddRow.BackColor = Color.FromName(Skin.OddRowColor);  // 设置奇数行颜色


            grid.OptionsView.EnableAppearanceEvenRow = true;
            grid.Appearance.EvenRow.Options.UseBackColor = true;
            grid.Appearance.EvenRow.BackColor = Color.FromName(Skin.EvenRowColor);  // 设置偶数行颜色
        }

        /// <summary>
        /// 从表视图颜色样式设置
        /// </summary>
        /// <param name="grid"></param>
        public static void SetGridSubViewColor(this GridView grid)
        {
            //聚焦
            grid.Appearance.FocusedRow.Options.UseBackColor = true;
            grid.Appearance.FocusedRow.BackColor = Color.FromName(Skin.FocusRowColor);
            grid.Appearance.FocusedCell.Options.UseBackColor = true;
            grid.Appearance.FocusedCell.BackColor = Color.FromName(Skin.FocusRowColor);
        }


        /// <summary>
        /// 普通编辑视图设置
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="height"></param>
        public static void SetDefaultEditView(this GridView grid, int height = 35)
        {
            grid.OptionsFind.FindNullPrompt = "检索";
            grid.OptionsSelection.MultiSelect = false;
            grid.OptionsMenu.EnableColumnMenu = true;

            grid.OptionsSelection.EnableAppearanceFocusedCell = false;
            grid.Appearance.HeaderPanel.TextOptions.HAlignment = HorzAlignment.Center;
            grid.Appearance.Row.TextOptions.HAlignment = HorzAlignment.Center;
            grid.FocusRectStyle = DrawFocusRectStyle.RowFullFocus;
            grid.OptionsCustomization.AllowFilter = true;
            grid.OptionsCustomization.AllowSort = true;
            grid.OptionsCustomization.AllowQuickHideColumns = false;
            grid.OptionsView.ShowAutoFilterRow = false;
            grid.OptionsView.ShowFilterPanelMode = DevExpress.XtraGrid.Views.Base.ShowFilterPanelMode.Never;
            grid.OptionsView.NewItemRowPosition = NewItemRowPosition.None;
            grid.OptionsView.ShowGroupPanel = false;
            grid.OptionsClipboard.AllowCopy = DefaultBoolean.True;
            grid.OptionsBehavior.Editable = true;
            grid.OptionsBehavior.ReadOnly = false;

            grid.OptionsView.EnableAppearanceOddRow = true;
            grid.OptionsView.EnableAppearanceEvenRow = true;
            grid.Appearance.OddRow.BackColor = Color.White;
            grid.Appearance.EvenRow.BackColor = Color.FromArgb(244, 248, 251);


            grid.RowHeight = height;
            grid.ColumnPanelRowHeight = height;
            grid.GroupRowHeight = height;
            grid.BestFitColumns();
        }

        public class Skin
        {
            public static string ThemeStyle { get; set; } = "The Bezier";

            public static string Style { get; set; } = "Office Colorful";

            public string MainFromColor { get; set; } = "#0070C0";

            public string ConfirmButtonColor { get; set; } = "#2960A4";

            public string CancelButtonColor { get; set; } = "#F07409";

            public string StartButtonColor { get; set; } = "#8DB3E2";

            public static string FocusRowColor { get; set; } = "#7292CD";

            public static string OddRowColor { get; set; } = "#D8D8D8";

            public static string EvenRowColor { get; set; } = "#FFFFFF";
        }


        /// <summary>
        /// 设置拖拽状态下的普通视图
        /// </summary> 
        public static void SetDragNormalView<t>(this GridView rhs, int height = 35) where t : class
        {
            rhs.SetNormalView(height);

            GridHitInfo downHitInfo = null;
            rhs.MouseDown += (sender, e) =>
            {
                var view = sender as GridView;
                downHitInfo = null;
                if (view != null)
                {
                    GridHitInfo hitInfo = view.CalcHitInfo(new Point(e.X, e.Y));
                    if (e.Button == MouseButtons.Left && hitInfo.InRow && hitInfo.HitTest != GridHitTest.RowIndicator)
                    {
                        downHitInfo = hitInfo;
                    }
                }
            };


            rhs.MouseMove += (sender, e) =>
            {
                var view = sender as GridView;
                if (e.Button == MouseButtons.Left && downHitInfo != null)
                {
                    Size dragSize = SystemInformation.DragSize;
                    Rectangle dragRect = new Rectangle(new Point(downHitInfo.HitPoint.X - dragSize.Width / 2, downHitInfo.HitPoint.Y - dragSize.Height / 2), dragSize);

                    if (!dragRect.Contains(new Point(e.X, e.Y)))
                    {
                        if (view != null)
                        {
                            var dragVm = view.GetSelectedRows().Select(rownum => view.GetRow(rownum) as t).FirstOrDefault();
                            if (dragVm != null)
                            {
                                view.GridControl.DoDragDrop(dragVm, DragDropEffects.Move);
                            }
                        }
                        downHitInfo = null;
                        DXMouseEventArgs.GetMouseArgs(e).Handled = true;
                    }
                }
            };
        }



    }
}