/// <summary>
/// Collapses the item to hide any child items.
/// </summary>
public void Collapse()
{
if (!_expanded)
{
return;
}
if (_listView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(null, this);
_listView.OnItemCollapsing(e);
if (e.Cancel)
{
return;
}
}
_expanded = false;
if (_items != null && _items.Count > 0)
{
_listView.RecalculateItemPositions(this);
}
else
{
_listView.Invalidate();
}
if (_listView != null)
{
_listView.OnItemCollapsed(new TreeListViewEventArgs(null, this));
}
}
/// <summary>
/// Expands the item to display any child items.
/// </summary>
public virtual void Expand() // Aulofee customization - start. Made method virtual. Custo end
{
if (_expanded)
{
return;
}
if (_listView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(null, this);
_listView.OnItemExpanding(e);
if (e.Cancel)
{
return;
}
}
_expanded = true;
if (_items != null && _items.Count > 0)
{
_listView.RecalculateItemPositions(this);
}
else
{
_listView.Invalidate();
}
if (_listView != null)
{
_listView.OnItemExpanded(new TreeListViewEventArgs(null, this));
}
}
private void tlvwLocals_ItemExpanding(object sender, TreeListViewCancelEventArgs e)
{
if (e.Item.Items.Count == 1 && e.Item.Items[0].Text == EmptyTableElementName)
{
LuaVariable var = e.Item.Tag as LuaVariable;
ClientDebugManager.Instance.AddCommand(new UpdateTableDetailsCommand(var.FullNameIn, var.FullNameOut, true, null));
}
}
void FSExplorer_BeforeCollapse(object sender, TreeListViewCancelEventArgs e)
{
if (e.Item.Level > 0)
{
if (e.Item.ImageKey == "文件夹展开")
{
e.Item.ImageKey = "文件夹收起";
}
}
}
private void trlvWorkSheet_BeforeExpand(object sender, TreeListViewCancelEventArgs e)
{
if (e.Item.ImageIndex == 0)
{
e.Item.ImageIndex = 1;
}
if (e.Item.ImageIndex == 2)
{
e.Item.ImageIndex = 3;
}
}
private void trlvWorkSheet_BeforeCollapse(object sender, TreeListViewCancelEventArgs e)
{
if (e.Item.ImageIndex == 1)
{
e.Item.ImageIndex = 0;
}
if (e.Item.ImageIndex == 3)
{
e.Item.ImageIndex = 2;
}
}
void FSExplorer_BeforeExpand(object sender, TreeListViewCancelEventArgs e)
{
if (e.Item.Level > 0)
{
if (e.Item.ImageKey == "文件夹收起")
{
Shell32.SHFILEINFO shFolderInfo = new Shell32.SHFILEINFO();
Apq.Windows.Forms.IconChache.GetFileSystemIcon(e.Item.FullPath, ref shFolderInfo, true);
e.Item.ImageKey = "文件夹展开";
}
}
}
internal void RaiseBeforeExpand(TreeListViewCancelEventArgs e)
{
if(BeforeExpand != null)
BeforeExpand(this, e);
}
internal void RaiseBeforeCollapse(TreeListViewCancelEventArgs e)
{
if(BeforeCollapse != null)
BeforeCollapse(this, e);
}
/// <summary>
/// Raises the BeforeExpand event.
/// </summary>
/// <param name="e"></param>
protected virtual void OnBeforeExpand(TreeListViewCancelEventArgs e)
{
if(BeforeExpand != null) BeforeExpand(this, e);
}
/// <summary>
/// Raises the BeforeCollapse event.
/// </summary>
/// <param name="e"></param>
protected virtual void OnBeforeCollapse(TreeListViewCancelEventArgs e)
{
if(BeforeCollapse != null) BeforeCollapse(this, e);
}
internal void RaiseBeforeExpand(TreeListViewCancelEventArgs e)
{
OnBeforeExpand(e);
}
internal void RaiseBeforeCollapse(TreeListViewCancelEventArgs e)
{
OnBeforeCollapse(e);
}
/// <summary>
/// Expand
/// </summary>
public void Expand()
{
// The item wasn't expanded -> raise an event
if(Visible && !_isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseBeforeExpand(e);
if(e.Cancel) return;
}
if(this.Visible)
{
Items.ReadWriteLock.AcquireReaderLock(-1);
for(int i = Items.Count - 1 ; i >= 0 ;i--)
{
TreeListViewItem item = this.Items[i];
if(!item.Visible)
{
ListView LView = this.ListView;
LView.Items.Insert(
this.Index + 1,
item);
item.SetIndentation();
}
if(item.IsExpanded)
item.Expand();
}
Items.ReadWriteLock.ReleaseReaderLock();
}
// The item wasn't expanded -> raise an event
if(Visible && !_isexpanded && ListView != null)
{
this._isexpanded = true;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseAfterExpand(e);
if(AfterExpand != null) AfterExpand(this);
}
this._isexpanded = true;
}
internal void ExpandInternal()
{
if (IsInATreeListView)
{
if (ListView.InvokeRequired)
{
throw (new Exception("Invoke Required"));
}
}
TreeListViewItem selItem = null;
if (TreeListView != null)
{
selItem = TreeListView.FocusedItem;
}
// Must set ListView.checkDirection to CheckDirection.None.
// Forbid recursively checking.
CheckDirection oldDirection = CheckDirection.All;
if (ListView != null)
{
oldDirection = ListView._checkDirection;
ListView._checkDirection = CheckDirection.None;
}
// The item wasn't expanded -> raise an event
if (Visible && !_isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseBeforeExpand(e);
if (e.Cancel)
{
return;
}
}
if (Visible)
{
for (int i = Items.Count - 1; i >= 0; i--)
{
TreeListViewItem item = this.Items[i];
if (!item.Visible)
{
ListView LView = this.ListView;
LView.Items.Insert(
this.Index + 1, item);
item.SetIndentation();
}
if (item.IsExpanded)
{
item.Expand();
}
}
}
// The item wasn't expanded -> raise an event
if (Visible && !_isexpanded && IsInATreeListView)
{
this._isexpanded = true;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseAfterExpand(e);
if (AfterExpand != null)
{
AfterExpand(this);
}
}
this._isexpanded = true;
// Reset ListView.checkDirection
if (IsInATreeListView)
{
ListView._checkDirection = oldDirection;
}
if (TreeListView != null && selItem != null)
{
if (selItem.Visible)
{
selItem.Focused = true;
}
}
}
internal void CollapseInternal()
{
if(IsInATreeListView)
if(ListView.InvokeRequired)
throw(new Exception("Invoke Required"));
TreeListViewItem selItem = null;
if(TreeListView != null) selItem = TreeListView.FocusedItem;
// The item was expanded -> raise an event
if(Visible && _isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseBeforeCollapse(e);
if(e.Cancel) return;
}
// Collapse
if(this.Visible)
foreach(TreeListViewItem item in Items)
item.Hide();
// The item was expanded -> raise an event
if(Visible && _isexpanded && IsInATreeListView)
{
this._isexpanded = false;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseAfterCollapse(e);
if(AfterCollapse != null) AfterCollapse(this);
}
this._isexpanded = false;
if(IsInATreeListView && selItem != null)
{
if(selItem.Visible)
selItem.Focused = true;
else
{
ListView listview = (ListView) TreeListView;
listview.SelectedItems.Clear();
TreeListViewItem[] items = selItem.ParentsInHierarch;
for(int i = items.Length - 1; i >= 0; i--)
if(items[i].Visible)
{
items[i].Focused = true;
break;
}
}
}
}
internal void ExpandInternal()
{
if(IsInATreeListView)
if (ListView.InvokeRequired)
throw(new Exception("Invoke Required"));
TreeListViewItem selItem = null;
if(TreeListView != null) selItem = TreeListView.FocusedItem;
// Must set ListView.checkDirection to CheckDirection.None.
// Forbid recursively checking.
CheckDirection oldDirection = CheckDirection.All;
if(ListView != null)
{
oldDirection = ListView._checkDirection;
ListView._checkDirection = CheckDirection.None;
}
// The item wasn't expanded -> raise an event
if(Visible && !_isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseBeforeExpand(e);
if(e.Cancel) return;
}
if(Visible)
for(int i = Items.Count - 1 ; i >= 0 ;i--)
{
TreeListViewItem item = this.Items[i];
if(!item.Visible)
{
ListView LView = this.ListView;
LView.Items.Insert(
this.Index + 1, item);
item.SetIndentation();
}
if(item.IsExpanded) item.Expand();
}
// The item wasn't expanded -> raise an event
if(Visible && !_isexpanded && IsInATreeListView)
{
this._isexpanded = true;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseAfterExpand(e);
if (AfterExpand != null) AfterExpand(this);
}
this._isexpanded = true;
// Reset ListView.checkDirection
if(IsInATreeListView)
ListView._checkDirection = oldDirection;
if(TreeListView != null && selItem != null)
if(selItem.Visible)
selItem.Focused = true;
}
internal void CollapseInternal()
{
if (IsInATreeListView)
{
if (ListView.InvokeRequired)
{
throw (new Exception("Invoke Required"));
}
}
TreeListViewItem selItem = null;
if (TreeListView != null)
{
selItem = TreeListView.FocusedItem;
}
// The item was expanded -> raise an event
if (Visible && _isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseBeforeCollapse(e);
if (e.Cancel)
{
return;
}
}
// Collapse
if (this.Visible)
{
foreach (TreeListViewItem item in Items)
{
item.Hide();
}
}
// The item was expanded -> raise an event
if (Visible && _isexpanded && IsInATreeListView)
{
this._isexpanded = false;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseAfterCollapse(e);
if (AfterCollapse != null)
{
AfterCollapse(this);
}
}
this._isexpanded = false;
if (IsInATreeListView && selItem != null)
{
if (selItem.Visible)
{
selItem.Focused = true;
}
else
{
ListView listview = (ListView)TreeListView;
listview.SelectedItems.Clear();
TreeListViewItem[] items = selItem.ParentsInHierarch;
for (int i = items.Length - 1; i >= 0; i--)
{
if (items[i].Visible)
{
items[i].Focused = true;
break;
}
}
}
}
}
/// <summary>
/// Collapse
/// </summary>
public void Collapse()
{
// The item was expanded -> raise an event
if(Visible && _isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseBeforeCollapse(e);
if(e.Cancel) return;
}
// Collapse
Items.ReadWriteLock.AcquireReaderLock(-1);
if(this.Visible)
foreach(TreeListViewItem item in Items)
item.Hide();
Items.ReadWriteLock.ReleaseReaderLock();
// The item was expanded -> raise an event
if(Visible && _isexpanded && ListView != null)
{
this._isexpanded = false;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Collapse);
ListView.RaiseAfterCollapse(e);
if(AfterCollapse != null) AfterCollapse(this);
}
this._isexpanded = false;
}
