private void CleanUpAfterDrag()
{
var window = Window.GetWindow(_MetroControl);
window.ClearValue(Window.AllowDropProperty);
window.DragEnter -= HandleDrag;
window.DragOver -= HandleDrag;
window.DragLeave -= HandleDrag;
window.Drop -= HandleDrop;
window.GiveFeedback -= HandleGiveFeedback;
VisualStateManager.GoToState(_DragTile, "IsNotDragSource", true);
if (_DragAdorner != null)
{
_DragAdorner.Detach();
}
if (_ScrollHelper != null)
{
_ScrollHelper.Stop();
}
_DragAdorner = null;
_DragSourcePage = null;
_DragTile = null;
_DragData = null;
_TileDropHelper = null;
_ScrollHelper = null;
_NewPageHelper = null;
}
protected override void OnMouseMove(System.Windows.Input.MouseEventArgs e)
{
if (e != null && !this.Disabled && this.IsOutmostPanel())
{
if (this.AutoConnectEnabled)
{
this.RemoveAutoConnectAdorner();
}
if (e.LeftButton == MouseButtonState.Pressed)
{
if (connectorEditor != null && connectorEditor.BeingEdited)
{
AutoScrollHelper.AutoScroll(e, this, 1);
connectorEditor.Update(e.GetPosition(this));
e.Handled = true;
}
}
}
base.OnMouseMove(e);
}
private void PrepareForDrag()
{
var window = Window.GetWindow(_MetroControl);
window.AllowDrop = true;
window.DragEnter += HandleDrag;
window.DragOver += HandleDrag;
window.DragLeave += HandleDrag;
window.Drop += HandleDrop;
window.GiveFeedback += HandleGiveFeedback;
if (_MetroControlPanel == null)
{
_MetroControlPanel = _MetroControl.GetItemsHost();
}
VisualStateManager.GoToState(_DragTile, "IsDragSource", true);
_DragSourcePage = _DragTile.GetVisualParent <MetroStartPage>();
_DragData = _DragSourcePage != null?_DragSourcePage.ItemContainerGenerator.ItemFromContainer(_DragTile) : null;
var adornerTemplate = (DataTemplate)_MetroControl.FindResource(MetroControl.DragAdornerDataTemplateKey);
_DragAdorner = new TemplatedDragDropAdorner(_MetroControl, adornerTemplate, _DragData);
_AdornerOffset = _MetroControl.TranslatePoint(_MouseDownPosition, _DragTile);
_CenterOffset = new Point();
_CenterOffset.Offset((_DragTile.RenderSize.Width / 2) - _AdornerOffset.X, (_DragTile.RenderSize.Height / 2) - _AdornerOffset.Y);
_TileDropHelper = new TileDropHelper(this);
_ScrollHelper = new AutoScrollHelper(this);
if (CanCreateNewPages())
{
_NewPageHelper = new DragTileIntoNewPageHelper(this);
}
}
public ScrollInfo(AutoScrollHelper owner, GridView view)
{
this.owner = owner;
this.view = view;
this.scrollTimer = new Timer();
this.scrollTimer.Tick += new EventHandler(scrollTimer_Tick);
}
private void EFDevGrid_Load(object sender, EventArgs e)
{
try
{
foreach (DevExpress.XtraGrid.Views.Base.BaseView baseView in this.Views)
{
if (baseView is DevExpress.XtraGrid.Views.Grid.GridView)
{
//为view添加行号显示事件
((DevExpress.XtraGrid.Views.Grid.GridView)baseView).CustomDrawRowIndicator += new DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventHandler(gridView1_CustomDrawRowIndicator);
//添加不绑定列[选择列]事件,添加一个选择列
((DevExpress.XtraGrid.Views.Grid.GridView)baseView).CustomUnboundColumnData += new DevExpress.XtraGrid.Views.Base.CustomColumnDataEventHandler(EFDevGrid_CustomUnboundColumnData);
this.DefaultViewChanged += new EventHandler(EFDevGrid_DefaultViewChanged);
//数据源改变事件
this.DataSourceChanged += new EventHandler(EFDevGrid_DataSourceChanged);
GetDataSourceTable();//get的时候会顺便设置dtDataSourceTemp
if (dtDataSourceTemp != null)
{
dtDataSourceTemp.RowDeleting += new DataRowChangeEventHandler(dtDataSourceTemp_RowDeleting);
dtDataSourceTemp.TableCleared += new DataTableClearEventHandler(dtDataSourceTemp_TableCleared);
}
//设置自动滚动辅助类对象
autoScrollHelper = new AutoScrollHelper(baseView as DevExpress.XtraGrid.Views.Grid.GridView);
//设置检查单元格验证事件
if (CheckByteLength)
{
this.MainView.ValidatingEditor -= new DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventHandler(MainView_ValidatingEditor);
this.MainView.ValidatingEditor += new DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventHandler(MainView_ValidatingEditor);
}
}
}
if (this.LevelTree != null)
{
for (int ii = 0; ii < this.LevelTree.Nodes.Count; ii++)
{
DevExpress.XtraGrid.Views.Base.BaseView baseView = this.LevelTree.Nodes[ii].LevelTemplate;
if (baseView != null && baseView is DevExpress.XtraGrid.Views.Grid.GridView)
{
(baseView as DevExpress.XtraGrid.Views.Grid.GridView).CustomDrawRowIndicator += new DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventHandler(gridView1_CustomDrawRowIndicator);
}
}
}
//添加选择列
AddSelectedColumn();
//初始化弹出菜单
if (popMenu == null && (this.MainView is DevExpress.XtraGrid.Views.Grid.GridView))
{
InitCustomMenu(this.MainView as DevExpress.XtraGrid.Views.Grid.GridView);
this.MouseDown -= new System.Windows.Forms.MouseEventHandler(this.EFDevGrid_MouseDown);
this.MouseDown += new MouseEventHandler(EFDevGrid_MouseDown);
}
//添加值改变事件--处理多行同时选中或取消选中
if (gridView1!=null)
{
gridView1.RowCellClick += new RowCellClickEventHandler(EFDevGrid_RowCellClick);
gridView1.TopRowChanged += new EventHandler(gridView1_TopRowChanged);
}
//设置行的可编辑属性
this.MainView.MouseWheel += new MouseEventHandler(MainView_MouseWheel);
this.MouseDown += new MouseEventHandler(EFDevGrid_MouseDownTemp);
//this.VisibleChanged += new EventHandler(EFDevGrid_VisibleChanged);
if (null != this.FindForm())
{
this.FindForm().Shown += new EventHandler(EFDevGrid_Shown);
}
}
catch (Exception ex)
{
System.Console.WriteLine("EFDevGrid_Load" + ex.Message);
}
}
/// <summary>
/// 拖动时移动
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void EFDevGrid_DragOver(object sender, DragEventArgs e)
{
try
{
Point p = this.PointToClient(new Point(e.X, e.Y));
GridView view = this.GetViewAt(p) as GridView;
if (view == null)
return;
GridHitInfo downHitInfoTemp = view.CalcHitInfo(p);
//DevExpress.XtraGrid.Views.Grid.ViewInfo.GridHitInfo downHitInfoTemp
// = (DevExpress.XtraGrid.Views.Grid.ViewInfo.GridHitInfo)this.MainView.CalcHitInfo(p);
if (downHitInfoTemp.HitTest == GridHitTest.EmptyRow)
{
destRowIndex = gridView1.DataRowCount;
}
else
{
destRowIndex = downHitInfoTemp.RowHandle;
}
//destRowIndex = downHitInfoTemp.RowHandle;
if (autoScrollHelper != null)
{
autoScrollHelper.ScrollIfNeeded();
}
else
{
autoScrollHelper = new AutoScrollHelper(gridView1);
autoScrollHelper.ScrollIfNeeded();
}
}
catch (Exception ex)
{
System.Console.WriteLine(ex.Message);
}
finally
{
//会画那根线,刷新,触发Pain事件
Refresh();
}
}
