/******************************
* 说明：表格拖拽到表格
* 创建人：龚宇超
* 创建日期：2017-11-13
* 修改人：
* 修改日期：
* 修改备注：
* 版本：1.0.0.0
******************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.Utils;
using System.Data;
using DevExpress.XtraGrid;
namespace Lskj.Control.Model
{
///
/// 表格拖拽到控件
///
public class GridDragControl
{
///
/// 是否正在拖拽
///
private bool _draging = false;
///
/// 拖动位置
///
private GridHitInfo _hitInfo;
///
/// 当前操作的GridView
///
private GridView _sourceGridView;
///
/// 目标Panel
///
private System.Windows.Forms.Control _targetPanel;
///
/// 拖动完成后调用
///
public event GridFragControlCompleteEventHandler OnDragComplete;
///
/// Initializes a new instance of the class.
///
/// 当前GridView
/// 目标GridView.
public GridDragControl(GridView sourceView, System.Windows.Forms.Control control)
{
this._sourceGridView = sourceView;
this._targetPanel = control;
if (this._sourceGridView == null || this._targetPanel == null) return;
this._sourceGridView.MouseDown += new System.Windows.Forms.MouseEventHandler(sourceGridView_MouseDown);
this._sourceGridView.MouseMove += new System.Windows.Forms.MouseEventHandler(sourceGridView_MouseMove);
this._sourceGridView.MouseUp += new System.Windows.Forms.MouseEventHandler(sourceGridView_MouseUp);
this._targetPanel.AllowDrop = true;
//this._targetPanel.DragOver += new DragEventHandler(PanelDragOver);
this._targetPanel.DragEnter += new System.Windows.Forms.DragEventHandler(PanelDragEnter);
this._targetPanel.DragDrop += new System.Windows.Forms.DragEventHandler(PanelDragDrop);
}
///
/// 说明：获取表格选中行数据
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The row handles.
/// DataRow[].
private DataRow[] GetGridSelectRows(int[] rowHandles)
{
List rows = new List();
foreach (int handle in rowHandles)
{
DataRow row = this._sourceGridView.GetDataRow(handle);
rows.Add(row);
}
return rows.ToArray();
}
///
/// 说明：源表格鼠标按下
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
protected void sourceGridView_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
this._hitInfo = null;
if (System.Windows.Forms.Control.ModifierKeys != Keys.None) return;
GridView gridView = sender as GridView;
GridHitInfo hitInfo = gridView.CalcHitInfo(new Point(e.X, e.Y));
if (e.Button == MouseButtons.Left && hitInfo.RowHandle >= 0)
{
this._draging = true;
this._hitInfo = hitInfo;
}
}
///
/// 说明：源表格鼠标移动
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
protected void sourceGridView_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
GridView gridView = sender as GridView;
if (e.Button == MouseButtons.Left && this._hitInfo != null)
{
Size dragSize = SystemInformation.DragSize;
Rectangle dragRect = new Rectangle(new Point(this._hitInfo.HitPoint.X - dragSize.Width / 2,
this._hitInfo.HitPoint.Y - dragSize.Height / 2), dragSize);
if (!dragRect.Contains(new Point(e.X, e.Y)))
{
object row = gridView.GetRow(this._hitInfo.RowHandle >= 0 ? this._hitInfo.RowHandle : 0);
gridView.GridControl.DoDragDrop(row, DragDropEffects.Move);
this._hitInfo = null;
DXMouseEventArgs.GetMouseArgs(e).Handled = true;
}
}
}
///
/// 说明：源表格鼠标放开
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
protected void sourceGridView_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
this._draging = false;
}
///
/// 说明：移动到目标表格上
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
private void PanelDragOver(object sender, DragEventArgs e)
{
//GridControl targetControl = (sender as GridControl);
//GridView targetGrid = targetControl.FocusedView as GridView;
//Point gcPoint = targetControl.PointToScreen((sender as GridControl).Location);
//Point pt = new Point(e.X - gcPoint.X, e.Y - gcPoint.Y);
//_hitInfo = targetGrid.CalcHitInfo(pt);
//if (_hitInfo == null || _hitInfo.RowHandle < 0) return;
//targetGrid.SelectRow(_hitInfo.RowHandle);
//targetGrid.FocusedRowHandle = _hitInfo.RowHandle;
}
///
/// 说明：移动到目标表格
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
protected void PanelDragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}
///
/// 说明：拖动完成时
/// 创建人：龚宇超
/// 创建日期：2017-11-13
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// The source of the event.
/// The instance containing the event data.
protected void PanelDragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
if (this.OnDragComplete != null && this._draging)
{
this._draging = false;
GridDragControlArgs args = new GridDragControlArgs();
args.SourceGridViewObj = this._sourceGridView;
args.TargetControlObj = this._targetPanel;
args.GridViewSelectRows = GetGridSelectRows(this._sourceGridView.GetSelectedRows());
args.SelectGridRow = this._sourceGridView.GetDataRow(this._sourceGridView.FocusedRowHandle);
this.OnDragComplete(sender, args);
}
}
}
}