// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
-#if NET_2_0
using System;
using System.Collections;
string path;
int depth = -1;
+ object dataItem;
IHierarchyData hierarchyData;
+
bool gotBinding;
TreeNodeBinding binding;
PropertyDescriptorCollection boundProperties;
+ bool populating;
+ bool hadChildrenBeforePopulating;
internal TreeNode (TreeView tree)
{
Target = target;
}
+ [MonoTODO ("Not implemented")]
+ protected TreeNode (TreeView owner, bool isRoot)
+ {
+ throw new NotImplementedException ();
+ }
+
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[Browsable (false)]
public int Depth {
path = null;
depth = -1;
gotBinding = false;
+ if (nodes != null) {
+ foreach (TreeNode node in nodes)
+ node.ResetPathData ();
+ }
}
internal TreeView Tree {
if (SelectedFlag) {
if (value != null)
value.SetSelectedNode (this, false);
- else if (tree != null)
- tree.SetSelectedNode (null, false);
}
tree = value;
if (nodes != null)
nodes.SetTree (tree);
ResetPathData ();
+ if (PopulateOnDemand && !Populated && Expanded.HasValue && Expanded.Value)
+ Populate ();
}
}
[DefaultValue (false)]
[Browsable (false)]
public bool DataBound {
- get { return hierarchyData != null; }
+ get { return ViewState ["DataBound"] == null ? false : (bool) ViewState ["DataBound"]; }
+ private set { ViewState ["DataBound"] = value; }
}
[DefaultValue (null)]
[Browsable (false)]
public object DataItem {
- get {
- if (hierarchyData == null) throw new InvalidOperationException ("TreeNode is not data bound.");
- return hierarchyData.Item;
- }
+ get { return dataItem; }
}
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[DefaultValue ("")]
[Browsable (false)]
public string DataPath {
- get {
- if (hierarchyData == null) throw new InvalidOperationException ("TreeNode is not data bound.");
- return hierarchyData.Path;
- }
+ get { return ViewState ["DataPath"] == null ? String.Empty : (String) ViewState ["DataPath"]; }
+ private set { ViewState ["DataPath"] = value; }
}
[DefaultValue (false)]
- public virtual bool Checked {
+ public bool Checked {
get {
object o = ViewState ["Checked"];
if (o != null) return (bool)o;
[MergableProperty (false)]
[Browsable (false)]
[PersistenceMode (PersistenceMode.InnerDefaultProperty)]
- public virtual TreeNodeCollection ChildNodes {
+ public TreeNodeCollection ChildNodes {
get {
if (nodes == null) {
- if (PopulateOnDemand && tree == null)
- return null;
-
- if (DataBound)
- FillBoundChildren ();
- else
- nodes = new TreeNodeCollection (this);
+ nodes = new TreeNodeCollection (this);
if (IsTrackingViewState)
((IStateManager)nodes).TrackViewState();
-
- if (PopulateOnDemand && !Populated) {
- Populated = true;
- Populate ();
- }
}
return nodes;
}
}
- [DefaultValue (false)]
- public virtual bool Expanded {
+ [DefaultValue (null)]
+ public bool? Expanded {
get {
object o = ViewState ["Expanded"];
- if (o != null) return (bool)o;
- return false;
+ return (bool?)o;
}
set {
+ bool? current = (bool?) ViewState ["Expanded"];
+ if (current == value)
+ return;
ViewState ["Expanded"] = value;
if (tree != null)
tree.NotifyExpandedChanged (this);
+ if (PopulateOnDemand && !Populated && value.HasValue && value.Value)
+ Populate ();
}
}
[Localizable (true)]
[DefaultValue ("")]
- public virtual string ImageToolTip {
+ public string ImageToolTip {
get {
object o = ViewState ["ImageToolTip"];
- if (o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.ImageToolTipField != "")
- return (string) GetBoundPropertyValue (bin.ImageToolTipField);
- return bin.ImageToolTip;
- }
- }
- return "";
- }
- set {
- ViewState ["ImageToolTip"] = value;
+ if (o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["ImageToolTip"] = value; }
}
[DefaultValue ("")]
[UrlProperty]
[Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
- public virtual string ImageUrl {
+ public string ImageUrl {
get {
object o = ViewState ["ImageUrl"];
- if (o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.ImageUrlField != "")
- return (string) GetBoundPropertyValue (bin.ImageUrlField);
- return bin.ImageUrl;
- }
- }
- return "";
- }
- set {
- ViewState ["ImageUrl"] = value;
+ if (o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["ImageUrl"] = value; }
}
[DefaultValue ("")]
[UrlProperty]
[Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
- public virtual string NavigateUrl {
+ public string NavigateUrl {
get {
object o = ViewState ["NavigateUrl"];
- if (o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.NavigateUrlField != "")
- return (string) GetBoundPropertyValue (bin.NavigateUrlField);
- return bin.NavigateUrl;
- }
- }
- return "";
+ if (o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["NavigateUrl"] = value; }
+ }
+
+ internal bool HadChildrenBeforePopulating {
+ get { return hadChildrenBeforePopulating; }
set {
- ViewState ["NavigateUrl"] = value;
+ if (populating)
+ return;
+
+ hadChildrenBeforePopulating = value;
}
}
-
+
[DefaultValue (false)]
public bool PopulateOnDemand {
get {
object o = ViewState ["PopulateOnDemand"];
- if (o != null) return (bool)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null)
- return bin.PopulateOnDemand;
- }
+ if (o != null)
+ return (bool)o;
return false;
}
set {
ViewState ["PopulateOnDemand"] = value;
+ if (value && nodes != null && nodes.Count > 0)
+ HadChildrenBeforePopulating = true;
+ else
+ HadChildrenBeforePopulating = false;
}
}
public TreeNodeSelectAction SelectAction {
get {
object o = ViewState ["SelectAction"];
- if (o != null) return (TreeNodeSelectAction)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null)
- return bin.SelectAction;
- }
+ if (o != null)
+ return (TreeNodeSelectAction)o;
return TreeNodeSelectAction.Select;
}
- set {
- ViewState ["SelectAction"] = value;
- }
+ set { ViewState ["SelectAction"] = value; }
}
- [DefaultValue (false)]
- public bool ShowCheckBox {
+ [DefaultValue (null)]
+ public bool? ShowCheckBox {
get {
object o = ViewState ["ShowCheckBox"];
- if (o != null) return (bool)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null)
- return bin.ShowCheckBox;
- }
- return false;
+ return (bool?)o;
}
- set {
- ViewState ["ShowCheckBox"] = value;
+ set { ViewState ["ShowCheckBox"] = value; }
+ }
+
+ internal bool ShowCheckBoxInternal {
+ get {
+ if (ShowCheckBox.HasValue)
+ return ShowCheckBox.Value;
+ else
+ return (Tree.ShowCheckBoxes == TreeNodeTypes.All) ||
+ ((Tree.ShowCheckBoxes & TreeNodeTypes.Leaf) > 0 && IsLeafNode) ||
+ ((Tree.ShowCheckBoxes & TreeNodeTypes.Parent) > 0 && IsParentNode && Parent != null) ||
+ ((Tree.ShowCheckBoxes & TreeNodeTypes.Root) > 0 && Parent == null && ChildNodes.Count > 0);
}
}
- internal bool IsShowCheckBoxSet {
- get { return ViewState ["ShowCheckBox"] != null; }
- }
-
[DefaultValue ("")]
- public virtual string Target {
+ public string Target {
get {
object o = ViewState ["Target"];
- if(o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.TargetField != "")
- return (string) GetBoundPropertyValue (bin.TargetField);
- return bin.Target;
- }
- }
- return "";
- }
- set {
- ViewState ["Target"] = value;
+ if(o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["Target"] = value; }
}
[Localizable (true)]
[DefaultValue ("")]
[WebSysDescription ("The display text of the tree node.")]
- public virtual string Text {
+ public string Text {
get {
object o = ViewState ["Text"];
- if (o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- string text;
- if (bin.TextField != "")
- text = (string) GetBoundPropertyValue (bin.TextField);
- else if (bin.Text != "")
- text = bin.Text;
- else
- text = hierarchyData.ToString ();
-
- if (bin.FormatString.Length != 0)
- text = string.Format (bin.FormatString, text);
- return text;
- }
- return hierarchyData.ToString ();
- }
- return "";
- }
- set {
- ViewState ["Text"] = value;
+ if (o == null)
+ o = ViewState ["Value"];
+ if (o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["Text"] = value; }
}
[Localizable (true)]
[DefaultValue ("")]
- public virtual string ToolTip {
+ public string ToolTip {
get {
object o = ViewState ["ToolTip"];
- if(o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.ToolTipField != "")
- return (string) GetBoundPropertyValue (bin.ToolTipField);
- return bin.ToolTip;
- }
- }
- return "";
- }
- set {
- ViewState ["ToolTip"] = value;
+ if(o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["ToolTip"] = value; }
}
[Localizable (true)]
[DefaultValue ("")]
- public virtual string Value {
+ public string Value {
get {
object o = ViewState ["Value"];
- if(o != null) return (string)o;
- if (DataBound) {
- TreeNodeBinding bin = GetBinding ();
- if (bin != null) {
- if (bin.ValueField != "")
- return (string) GetBoundPropertyValue (bin.ValueField);
- if (bin.Value != "")
- return bin.Value;
- }
- return hierarchyData.ToString ();
- }
- return "";
- }
- set {
- ViewState ["Value"] = value;
+ if (o == null)
+ o = ViewState ["Text"];
+ if(o != null)
+ return (string)o;
+ return String.Empty;
}
+ set { ViewState ["Value"] = value; }
}
[DefaultValue (false)]
- public virtual bool Selected {
- get {
- return SelectedFlag;
- }
+ public bool Selected {
+ get { return SelectedFlag; }
set {
+ SelectedFlag = value;
+
if (tree != null) {
if (!value && tree.SelectedNode == this)
tree.SetSelectedNode (null, false);
else if (value)
tree.SetSelectedNode (this, false);
}
- else
- SelectedFlag = value;
}
}
internal virtual bool SelectedFlag {
get {
object o = ViewState ["Selected"];
- if(o != null) return (bool)o;
+ if(o != null)
+ return (bool)o;
return false;
}
- set {
- ViewState ["Selected"] = value;
- }
+ set { ViewState ["Selected"] = value; }
}
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
set { index = value; ResetPathData (); }
}
- internal void SetParent (TreeNode node) {
+ internal void SetParent (TreeNode node)
+ {
parent = node;
ResetPathData ();
}
internal string Path {
get {
- if (path != null) return path;
+ if (path != null)
+ return path;
StringBuilder sb = new StringBuilder (index.ToString());
TreeNode node = parent;
while (node != null) {
internal bool Populated {
get {
object o = ViewState ["Populated"];
- if (o != null) return (bool) o;
+ if (o != null)
+ return (bool) o;
return false;
}
- set {
- ViewState ["Populated"] = value;
- }
+ set { ViewState ["Populated"] = value; }
}
internal bool HasChildData {
get { return nodes != null; }
}
- protected virtual void Populate ()
+ internal void Populate ()
{
+ if (tree == null)
+ return;
+
+ populating = true;
tree.NotifyPopulateRequired (this);
+ populating = false;
+ Populated = true;
}
public void Collapse ()
void SetExpandedRec (bool expanded, int depth)
{
Expanded = expanded;
- if (depth == 0) return;
+ if (depth == 0)
+ return;
foreach (TreeNode nod in ChildNodes)
nod.SetExpandedRec (expanded, depth - 1);
public void ToggleExpandState ()
{
- Expanded = !Expanded;
+ Expanded = !Expanded.GetValueOrDefault(false);
+ }
+
+ void IStateManager.LoadViewState (object savedState)
+ {
+ LoadViewState (savedState);
}
- public void LoadViewState (object savedState)
+ protected virtual void LoadViewState (object savedState)
{
if (savedState == null)
return;
((IStateManager)ChildNodes).LoadViewState (states [1]);
}
- public object SaveViewState ()
+ object IStateManager.SaveViewState ()
+ {
+ return SaveViewState ();
+ }
+
+ protected virtual object SaveViewState ()
{
object[] states = new object[2];
states[0] = ViewState.SaveViewState();
}
return null;
}
-
- public void TrackViewState ()
+
+ void IStateManager.TrackViewState ()
+ {
+ TrackViewState ();
+ }
+
+ protected void TrackViewState ()
{
if (marked) return;
marked = true;
((IStateManager)nodes).TrackViewState ();
}
- public bool IsTrackingViewState
- {
+ bool IStateManager.IsTrackingViewState {
+ get { return IsTrackingViewState; }
+ }
+
+ protected bool IsTrackingViewState {
get { return marked; }
}
internal void SetDirty ()
{
- ViewState.SetDirty ();
+ ViewState.SetDirty (true);
+ if (nodes != null)
+ nodes.SetDirty ();
}
- public object Clone ()
+ public virtual object Clone ()
{
- TreeNode nod = new TreeNode ();
+ TreeNode nod = tree != null ? tree.CreateNode () : new TreeNode ();
foreach (DictionaryEntry e in ViewState)
- nod.ViewState [(string)e.Key] = e.Value;
+ nod.ViewState [(string)e.Key] = ((StateItem)e.Value).Value;
foreach (TreeNode c in ChildNodes)
nod.ChildNodes.Add ((TreeNode)c.Clone ());
return nod;
}
+
+ object ICloneable.Clone ()
+ {
+ return Clone ();
+ }
internal void Bind (IHierarchyData hierarchyData)
{
this.hierarchyData = hierarchyData;
+ DataBound = true;
+ DataPath = hierarchyData.Path;
+ dataItem = hierarchyData.Item;
+
+ TreeNodeBinding bin = GetBinding ();
+ if (bin != null) {
+
+ // Bind ImageToolTip property
+
+ if (bin.ImageToolTipField.Length > 0) {
+ ImageToolTip = Convert.ToString (GetBoundPropertyValue (bin.ImageToolTipField));
+ if (ImageToolTip.Length == 0)
+ ImageToolTip = bin.ImageToolTip;
+ } else if (bin.ImageToolTip.Length > 0)
+ ImageToolTip = bin.ImageToolTip;
+
+ // Bind ImageUrl property
+
+ if (bin.ImageUrlField.Length > 0) {
+ ImageUrl = Convert.ToString (GetBoundPropertyValue (bin.ImageUrlField));
+ if (ImageUrl.Length == 0)
+ ImageUrl = bin.ImageUrl;
+ } else if (bin.ImageUrl.Length > 0)
+ ImageUrl = bin.ImageUrl;
+
+ // Bind NavigateUrl property
+
+ if (bin.NavigateUrlField.Length > 0) {
+ NavigateUrl = Convert.ToString (GetBoundPropertyValue (bin.NavigateUrlField));
+ if (NavigateUrl.Length == 0)
+ NavigateUrl = bin.NavigateUrl;
+ } else if (bin.NavigateUrl.Length > 0)
+ NavigateUrl = bin.NavigateUrl;
+
+ // Bind PopulateOnDemand property
+
+ if (bin.HasPropertyValue ("PopulateOnDemand"))
+ PopulateOnDemand = bin.PopulateOnDemand;
+
+ // Bind SelectAction property
+
+ if (bin.HasPropertyValue ("SelectAction"))
+ SelectAction = bin.SelectAction;
+
+ // Bind ShowCheckBox property
+
+ if (bin.HasPropertyValue ("ShowCheckBox"))
+ ShowCheckBox = bin.ShowCheckBox;
+
+ // Bind Target property
+
+ if (bin.TargetField.Length > 0) {
+ Target = Convert.ToString (GetBoundPropertyValue (bin.TargetField));
+ if (Target.Length == 0)
+ Target = bin.Target;
+ } else if (bin.Target.Length > 0)
+ Target = bin.Target;
+
+ // Bind Text property
+ string text = null;
+ if (bin.TextField.Length > 0) {
+ text = Convert.ToString (GetBoundPropertyValue (bin.TextField));
+ if (bin.FormatString.Length > 0)
+ text = string.Format (bin.FormatString, text);
+ }
+ if (String.IsNullOrEmpty (text)) {
+ if (bin.Text.Length > 0)
+ text = bin.Text;
+ else if (bin.Value.Length > 0)
+ text = bin.Value;
+ }
+ if (!String.IsNullOrEmpty (text))
+ Text = text;
+
+ // Bind ToolTip property
+
+ if (bin.ToolTipField.Length > 0) {
+ ToolTip = Convert.ToString (GetBoundPropertyValue (bin.ToolTipField));
+ if (ToolTip.Length == 0)
+ ToolTip = bin.ToolTip;
+ } else if (bin.ToolTip.Length > 0)
+ ToolTip = bin.ToolTip;
+
+ // Bind Value property
+ string value = null;
+ if (bin.ValueField.Length > 0) {
+ value = Convert.ToString (GetBoundPropertyValue (bin.ValueField));
+ }
+ if (String.IsNullOrEmpty (value)) {
+ if (bin.Value.Length > 0)
+ value = bin.Value;
+ else if (bin.Text.Length > 0)
+ value = bin.Text;
+ }
+ if (!String.IsNullOrEmpty (value))
+ Value = value;
+ } else {
+ Text = Value = GetDefaultBoundText ();
+ }
+
+ INavigateUIData navigateUIData = hierarchyData as INavigateUIData;
+ if (navigateUIData != null) {
+ SelectAction = TreeNodeSelectAction.None;
+ Text = navigateUIData.ToString ();
+ NavigateUrl = navigateUIData.NavigateUrl;
+ ToolTip = navigateUIData.Description;
+ }
+ }
+
+ internal void SetDataItem (object item)
+ {
+ dataItem = item;
+ }
+
+ internal void SetDataPath (string path)
+ {
+ DataPath = path;
+ }
+
+ internal void SetDataBound (bool bound)
+ {
+ DataBound = bound;
+ }
+
+ string GetDefaultBoundText ()
+ {
+ if (hierarchyData != null)
+ return hierarchyData.ToString ();
+ else if (dataItem != null)
+ return dataItem.ToString ();
+ else
+ return string.Empty;
}
+ string GetDataItemType ()
+ {
+ if (hierarchyData != null)
+ return hierarchyData.Type;
+ else if (dataItem != null)
+ return dataItem.GetType().ToString ();
+ else
+ return string.Empty;
+ }
+
internal bool IsParentNode {
- get { return ChildNodes.Count > 0 && Parent != null; }
+ get { return ChildNodes.Count > 0 || (PopulateOnDemand && !Populated); }
}
internal bool IsLeafNode {
- get { return ChildNodes.Count == 0; }
+ get { return !IsParentNode; }
}
internal bool IsRootNode {
- get { return ChildNodes.Count > 0 && Parent == null; }
+ get { return Depth == 0; }
}
TreeNodeBinding GetBinding ()
{
- if (tree == null) return null;
- if (gotBinding) return binding;
- binding = tree.FindBindingForNode (hierarchyData.Type, Depth);
+ if (tree == null)
+ return null;
+ if (gotBinding)
+ return binding;
+ binding = tree.FindBindingForNode (GetDataItemType (), Depth);
gotBinding = true;
return binding;
}
object GetBoundPropertyValue (string name)
{
- if (boundProperties == null)
- boundProperties = TypeDescriptor.GetProperties (hierarchyData);
+ if (boundProperties == null) {
+ if (hierarchyData != null)
+ boundProperties = TypeDescriptor.GetProperties (hierarchyData);
+ else
+ boundProperties = TypeDescriptor.GetProperties (dataItem);
+ }
PropertyDescriptor prop = boundProperties.Find (name, true);
if (prop == null)
throw new InvalidOperationException ("Property '" + name + "' not found in data bound item");
- return prop.GetValue (hierarchyData);
+
+ if (hierarchyData != null)
+ return prop.GetValue (hierarchyData);
+ else
+ return prop.GetValue (dataItem);
}
- void FillBoundChildren ()
+ internal void BeginRenderText (HtmlTextWriter writer)
+ {
+ RenderPreText (writer);
+ }
+
+ internal void EndRenderText (HtmlTextWriter writer)
+ {
+ RenderPostText (writer);
+ }
+
+ protected virtual void RenderPreText (HtmlTextWriter writer)
+ {
+ }
+
+ protected virtual void RenderPostText (HtmlTextWriter writer)
{
- nodes = new TreeNodeCollection (this);
- if (!hierarchyData.HasChildren) return;
- if (tree.MaxDataBindDepth != -1 && Depth >= tree.MaxDataBindDepth) return;
-
- IHierarchicalEnumerable e = hierarchyData.GetChildren ();
- foreach (object obj in e) {
- IHierarchyData hdata = e.GetHierarchyData (obj);
- TreeNode node = new TreeNode ();
- node.Bind (hdata);
- nodes.Add (node);
- }
}
}
}
-
-#endif
projects / mono.git / blobdiff