cyf
249 lines
8.9 KiB
C#
249 lines
8.9 KiB
C#
//树表格拖拽到表格
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using DevExpress.Utils;
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using DevExpress.XtraGrid;
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using DevExpress.XtraGrid.Views.Grid;
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using DevExpress.XtraGrid.Views.Grid.ViewInfo;
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using DevExpress.XtraTreeList;
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using DevExpress.XtraTreeList.Nodes;
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using Lskj.Data;
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using Lskj.Util;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace Lskj.Control.Model
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{
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public class TreeGridDragGrid
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{
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/// <summary>
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/// 拖动位置
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/// </summary>
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private GridHitInfo _hitInfo;
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/// <summary>
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/// 拖拽时节点
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/// </summary>
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TreeListHitInfo downHitInfo = null;
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/// <summary>
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/// 拖动数据源
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/// </summary>
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private TreeList _sourceTreeList;
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/// <summary>
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/// 拖动目标源
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/// </summary>
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private GridView _targetGridView;
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/// <summary>
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/// 是否正在拖拽
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/// </summary>
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private bool _draging = false;
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public bool isDragCond = true;
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/// <summary>
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/// 是否正在拖拽
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/// </summary>
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public bool Draging { get { return _draging; } set { _draging = value; } }
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public bool CanDragParentNode = false;
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public bool isDropColorVisble = false;
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/// <summary>
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/// 表格数据拖动完成
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/// </summary>
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public event TreeGridDragGridCompleteEventHandler OnDragComplete;
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public TreeGridDragGrid(TreeList treeList, GridView gridView)
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{
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this._sourceTreeList = treeList;
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this._targetGridView = gridView;
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if (this._sourceTreeList == null || this._targetGridView == null)
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return;
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this._sourceTreeList.MouseDown += new MouseEventHandler(treeList_MouseDown);
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this._sourceTreeList.MouseMove += new MouseEventHandler(treeList_MouseMove);
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this._sourceTreeList.MouseUp += new MouseEventHandler(treeList_MouseUp);
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//this._sourceTreeList.HideSelection = false;
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this._sourceTreeList.AllowDrop = false;
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this._targetGridView.GridControl.AllowDrop = true;
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this._targetGridView.GridControl.DragOver += new DragEventHandler(treeGridView_DragOver);
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this._targetGridView.GridControl.DragEnter += new System.Windows.Forms.DragEventHandler(targetGridView_DragEnter);
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this._targetGridView.GridControl.DragDrop += new DragEventHandler(targetGridView_DragDrop);
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}
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private void targetGridView_DragDrop(object sender, DragEventArgs e)
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{
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if (this.OnDragComplete != null && this._draging)
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{
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this._draging = false;
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this.isDragCond = true;
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TreeGridDragGridArgs args = new TreeGridDragGridArgs();
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args.GridViewObj = this._targetGridView;
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args.TreeListObj = this._sourceTreeList;
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args.GridViewSelectRows = GetViewFocusedDataRows();
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args.SelectGridRow = this._targetGridView.GetDataRow(this._targetGridView.FocusedRowHandle);
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this.OnDragComplete(sender, args);
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}
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}
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/// <summary>
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/// <para>说明：获取选中行数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2019-10-18 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <returns>DataRow[].</returns>
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public DataRow[] GetViewFocusedDataRows()
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{
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var selectNodes = this._sourceTreeList.Selection;
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DataRow[] dataRows = new DataRow[selectNodes.Count];
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for (int i = 0; i < selectNodes.Count; i++)
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{
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TreeListNode treeNode = selectNodes[i];
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DataRowView dataRowView = this._sourceTreeList.GetDataRecordByNode(treeNode) as DataRowView;
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dataRows[i] = dataRowView != null ? dataRowView.Row : null;
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}
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//设置了复选框这个获取所有选中的节点行
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if (this._sourceTreeList.OptionsView.ShowCheckBoxes == true && this._sourceTreeList.OptionsSelection.MultiSelect == true && this._sourceTreeList.OptionsSelection.MultiSelectMode == TreeListMultiSelectMode.RowSelect)
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{
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List<TreeListNode> TreeListNodeList = this._sourceTreeList.GetAllCheckedNodes();
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dataRows = new DataRow[TreeListNodeList.Count];
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for (int i = 0; i < TreeListNodeList.Count; i++)
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{
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TreeListNode treeNode = TreeListNodeList[i];
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DataRowView dataRowView = this._sourceTreeList.GetDataRecordByNode(treeNode) as DataRowView;
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dataRows[i] = dataRowView != null ? dataRowView.Row : null;
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}
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}
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return dataRows;
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}
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private void targetGridView_DragEnter(object sender, DragEventArgs e)
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{
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if (isDragCond)
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{
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e.Effect = DragDropEffects.Move;
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}
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else
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{
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e.Effect = DragDropEffects.None;
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}
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}
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private void treeGridView_DragOver(object sender, DragEventArgs e)
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{
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TreeList treelist = sender as TreeList;
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if (treelist != null)
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{
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e.Effect = DragDropEffects.Move;
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}
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GridControl targetControl = (sender as GridControl);
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GridView targetGrid = targetControl.FocusedView as GridView;
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Point gcPoint = targetControl.PointToScreen((sender as GridControl).Location);
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Point pt = new Point(e.X - gcPoint.X, e.Y - gcPoint.Y);
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_hitInfo = targetGrid.CalcHitInfo(pt);
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if (_hitInfo == null || _hitInfo.RowHandle < 0) return;
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if (!isDropColorVisble) targetGrid.SelectRow(_hitInfo.RowHandle);
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targetGrid.FocusedRowHandle = _hitInfo.RowHandle;
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}
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/// <summary>
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/// <para>说明：源表格鼠标放开</para>
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/// <para>创建人：</para>
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/// <para>创建日期： </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void treeList_MouseUp(object sender, MouseEventArgs e)
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{
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this._draging = false;
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}
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/// <para>说明：源表格鼠标移动</para>
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/// <para>创建人：</para>
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/// <para>创建日期： </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void treeList_MouseMove(object sender, MouseEventArgs e)
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{
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TreeList treelist = sender as TreeList;
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if (e.Button == MouseButtons.Left && downHitInfo != null)
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{
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if (_sourceTreeList.Selection.Count == 0)
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return;
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Size dragSize = SystemInformation.DragSize;
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Rectangle dragRect = new Rectangle(new Point(downHitInfo.MousePoint.X - dragSize.Width / 2,
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downHitInfo.MousePoint.Y - dragSize.Height / 2), dragSize);
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if (!dragRect.Contains(new Point(e.X, e.Y)))
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{
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List<TreeListNode> node = new List<TreeListNode>();
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foreach (TreeListNode n in _sourceTreeList.Selection)
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{
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node.Add(n);
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}
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treelist.DoDragDrop(node, DragDropEffects.Move);
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downHitInfo = null;
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DevExpress.Utils.DXMouseEventArgs.GetMouseArgs(e).Handled = true;
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}
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}
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}
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/// <summary>
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/// <para>说明：源树表格鼠标按下</para>
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/// <para>创建人：</para>
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/// <para>创建日期：2023-3-20 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void treeList_MouseDown(object sender, MouseEventArgs e)
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{
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//this._sourceTreeList.AllowDrop = false;
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//this._targetGridView.GridControl.AllowDrop = true;
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TreeList treelist = sender as TreeList;
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downHitInfo = null;
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_hitInfo = null;
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TreeListHitInfo hitInfo = treelist.CalcHitInfo(new Point(e.X, e.Y));
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// if (Control.ModifierKeys != Keys.None) return;
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if (e.Button == MouseButtons.Left && hitInfo != null)
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{
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StaticControl.SourceDragGridView = null;
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this._draging = true;
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downHitInfo = hitInfo;
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}
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}
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}
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}
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