/// <summary>
/// 选中TVI
/// </summary>
/// <param name="control"></param>
/// <param name="dr"></param>
private void SelectTreeViewItem(ItemsControl control, DataRow dr)
{
if (control != null)
{
foreach (object item in control.Items)
{
TreeViewItem treeItem = control.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
if (treeItem != null)
{
PropertyNodeItem pni = treeItem.DataContext as PropertyNodeItem;
if (pni.ID == Convert.ToInt32(dr["ID"]))
{
treeItem.IsSelected = true;
return;
}
else if (treeItem.HasItems)
{
if (treeItem.ItemContainerGenerator.Status != System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
treeItem.UpdateLayout();
}
SelectTreeViewItem(treeItem as ItemsControl, dr);
}
}
}
}
}
/// <summary>
/// /选中DGR
/// </summary>
/// <param name="pni"></param>
/// <param name="check"></param>
/// <param name="visibile"></param>
private void SelectDataGridRow(PropertyNodeItem pni, bool?check, Visibility visibile)
{
for (int i = 0; i < datagrid.ItemContainerGenerator.Items.Count; i++)
{
DataGridRow dgv = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(i);
if (dgv == null)
{
datagrid.UpdateLayout();
datagrid.ScrollIntoView(datagrid.Items[i]);
dgv = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(i);
}
DataRow dr = (dgv.Item as DataRowView).Row;
if (pni.ID == Convert.ToInt32(dr["ID"]))
{
dgv.Visibility = visibile;
if (visibile == Visibility.Visible)
{
if (check == true)
{
dgv.IsSelected = true;
}
else if (check == false)
{
dgv.IsSelected = false;
}
}
}
}
}
/// <summary>
/// 节点展开
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnLoaded(object sender, RoutedEventArgs e)
{
TreeViewItem tvi = sender as TreeViewItem;
PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
SelectDataGridRow(pni, null, pni.Visibility);
e.Handled = true;
}
/// <summary>
/// TVI可视状态改变
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TreeItem_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
TreeViewItem tvi = sender as TreeViewItem;
PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
if (tvi.IsVisible)
{
SelectDataGridRow(pni, null, Visibility.Visible);
}
else
{
SelectDataGridRow(pni, null, Visibility.Collapsed);
}
}
/// <summary>
/// 被选择要选中对应的项
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnSelected(object sender, RoutedEventArgs e)
{
if (sender.GetType() == typeof(TreeViewItem))
{
TreeViewItem tvi = sender as TreeViewItem;
PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
SelectDataGridRow(pni, tvi.IsSelected, Visibility.Visible);
e.Handled = true;
}
else if (sender.GetType() == typeof(DataGridRow))
{
DataGridRow dgv = sender as DataGridRow;
DataRow dr = (dgv.Item as DataRowView).Row;
SelectTreeViewItem(treeview, dr);
}
}
/// <summary>
/// 读取树数据
/// </summary>
private void ShowTreeView()
{
List <PropertyNodeItem> itemList = new List <PropertyNodeItem>();
PropertyNodeItem node1 = new PropertyNodeItem()
{
ID = 1,
FatherID = 0,
DisplayName = "Node No.1",
Name = "This is the discription of Node1. This is a folder.",
IsExpanded = false
};
PropertyNodeItem node1tag1 = new PropertyNodeItem()
{
ID = 2,
FatherID = 1,
DisplayName = "Tag No.1",
Name = "This is the discription of Tag 1. This is a tag.",
IsExpanded = false
};
node1.Children.Add(node1tag1);
PropertyNodeItem node1tag2 = new PropertyNodeItem()
{
ID = 3,
FatherID = 1,
DisplayName = "Tag No.2",
Name = "This is the discription of Tag 2. This is a tag.",
IsExpanded = false
};
node1.Children.Add(node1tag2);
itemList.Add(node1);
PropertyNodeItem node2 = new PropertyNodeItem()
{
ID = 4,
FatherID = 0,
DisplayName = "Node No.2",
Name = "This is the discription of Node 2. This is a folder.",
IsExpanded = false
};
PropertyNodeItem node2tag3 = new PropertyNodeItem()
{
ID = 5,
FatherID = 4,
DisplayName = "Tag No.3",
Name = "This is the discription of Tag 3. This is a tag.",
IsExpanded = false
};
node2.Children.Add(node2tag3);
PropertyNodeItem node2tag4 = new PropertyNodeItem()
{
ID = 6,
FatherID = 4,
DisplayName = "Tag No.4",
Name = "This is the discription of Tag 4. This is a tag.",
IsExpanded = false
};
node2.Children.Add(node2tag4);
itemList.Add(node2);
PropertyNodeItem node1tag1tag1 = new PropertyNodeItem()
{
ID = 7,
FatherID = 2,
DisplayName = "TagTag No.1",
Name = "This is the discription of TagTag 1. This is a tag.",
IsExpanded = false
};
node1tag1.Children.Add(node1tag1tag1);
PropertyNodeItem node1tag1tag2 = new PropertyNodeItem()
{
ID = 8,
FatherID = 2,
DisplayName = "TagTag No.2",
Name = "This is the discription of TagTag 2. This is a tag.",
IsExpanded = false
};
node1tag1.Children.Add(node1tag1tag2);
PropertyNodeItem node1tag1tag1tag1 = new PropertyNodeItem()
{
ID = 9,
FatherID = 7,
DisplayName = "TagTagTag No.1",
Name = "This is the discription of TagTagTag 1. This is a tag.",
IsExpanded = false
};
node1tag1tag1.Children.Add(node1tag1tag1tag1);
PropertyNodeItem node1tag1tag1tag2 = new PropertyNodeItem()
{
ID = 10,
FatherID = 7,
DisplayName = "TagTagTag No.2",
Name = "This is the discription of TagTagTag 2. This is a tag.",
IsExpanded = false
};
node1tag1tag1.Children.Add(node1tag1tag1tag2);
this.treeview.ItemsSource = itemList;
}