/// <summary>
/// 判断是否可执行元素替换
/// </summary>
/// <param name="beforeConferenceTreeItem"></param>
/// <param name="nowConferenceTreeItem"></param>
/// <returns></returns>
public bool CheckCanInsteadElement(ConferenceTreeItem beforeConferenceTreeItem, ConferenceTreeItem nowConferenceTreeItem)
{
bool result = true;
try
{
if (beforeConferenceTreeItem != null && nowConferenceTreeItem != null)
{
//查找拖动目标的子集（不允许父级拖到子级的动作）
List <ConferenceTreeItem> beforeItemList = WPFElementManage.FindVisualChildren <ConferenceTreeItem>(beforeConferenceTreeItem).ToList <ConferenceTreeItem>();
//不允许父级拖到子级的动作（返回）
if (beforeItemList != null && beforeItemList.Contains(nowConferenceTreeItem))
{
result = false;
}
//不为父子级关系
if (beforeConferenceTreeItem.ACA_Parent == null || beforeConferenceTreeItem.ACA_Parent.Equals(nowConferenceTreeItem))
{
result = false;
}
}
}
catch (Exception ex)
{
LogManage.WriteLog(this.GetType(), ex);
}
return(result);
}
/// <summary>
/// 子项拖动完成（鼠标点击弹起事件）
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ConferenceTreeView_PreviewMouseRightButtonUp(object sender, MouseButtonEventArgs e)
{
try
{
if (this.conferenceTreeItemVisual.Visibility == System.Windows.Visibility.Visible)
{
ConferenceTreeItem currentItem = ConferenceTreeItem.currentConferenceTreeItem;
if (currentItem != null)
{
//鼠标点击释放了，不可再拖动
currentItem.isDrag = false;
Point pos = e.GetPosition(this.borDiscussTheme);
HitTestResult result = VisualTreeHelper.HitTest(this.borDiscussTheme, pos);
if (result == null)
{
//显示虚拟拖拽节点
ConferenceTreeView.conferenceTreeView.conferenceTreeItemVisual.Visibility = System.Windows.Visibility.Collapsed;
return;
}
else
{
//显示虚拟拖拽节点
ConferenceTreeView.conferenceTreeView.conferenceTreeItemVisual.Visibility = System.Windows.Visibility.Collapsed;
}
ConferenceTreeItem conferenceTreeItem = WPFElementManage.FindVisualParent <ConferenceTreeItem>(result.VisualHit); // Find your actual visual you want to drag
if (conferenceTreeItem == null)
{
return;
}
if (conferenceTreeItem == currentItem)
{
return;
}
#region old solution
//ConferenceTreeItemTransferEntity beforeTransferItem = currentItem.AcademicReviewItemTransferEntity;
//ConferenceTreeItemTransferEntity nowTransferItem = conferenceTreeItem.AcademicReviewItemTransferEntity;
////存储选择协议实体和目标协议实体标题
//string title1 = beforeTransferItem.Title;
//string title2 = nowTransferItem.Title;
////存储选择协议实体和目标协议实体评论
//string coment1 = beforeTransferItem.Comment;
//string coment2 = nowTransferItem.Comment;
////存储选择协议实体和目标协议实体链接
//List<string> list1 = beforeTransferItem.LinkList.ToList<string>();
//List<string> list2 = nowTransferItem.LinkList.ToList<string>();
//beforeTransferItem.Title = title2;
//nowTransferItem.Title = title1;
//beforeTransferItem.Comment = coment2;
//nowTransferItem.Comment = coment1;
//beforeTransferItem.LinkList = list2;
//nowTransferItem.LinkList = list1;
#endregion
if (CheckCanInsteadElement(currentItem, conferenceTreeItem))
{
//conferenceTreeItem.ContentVisibility = System.Windows.Visibility.Visible;
ModelManage.ConferenceTree.InsteadElement(TreeCodeEnterEntity.ConferenceName, currentItem.ACA_Guid, conferenceTreeItem.ACA_Guid, new Action <bool>((successed) =>
{
}));
}
}
}
}
catch (Exception ex)
{
LogManage.WriteLog(this.GetType(), ex);
}
finally
{
}
}
