<%@ Page Language="C#" %> <%@ Import Namespace="System.Collections.Generic" %> <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %> <script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
Ext.Net.TreePanel tree = new Ext.Net.TreePanel(); this.PlaceHolder1.Controls.Add(tree); tree.ID = "TreePanel1";
tree.Width = Unit.Pixel(300);
tree.Height = Unit.Pixel(450);
tree.Icon = Icon.BookOpen;
tree.Title = "Catalog";
tree.AutoScroll = true; Ext.Net.Button btnExpand = new Ext.Net.Button();
btnExpand.Text = "Expand All";
btnExpand.Listeners.Click.Handler = tree.ClientID + ".expandAll();"; Ext.Net.Button btnCollapse = new Ext.Net.Button();
btnCollapse.Text = "Collapse All";
btnCollapse.Listeners.Click.Handler = tree.ClientID + ".collapseAll();"; Toolbar toolBar = new Toolbar();
toolBar.ID = "Toolbar1";
toolBar.Items.Add(btnExpand);
toolBar.Items.Add(btnCollapse);
tree.TopBar.Add(toolBar); StatusBar statusBar = new StatusBar();
statusBar.AutoClear = 1000;
tree.BottomBar.Add(statusBar); tree.Listeners.Click.Handler = statusBar.ClientID + ".setStatus({text: 'Node Selected: <b>' + node.text + '</b>', clear: true});";
tree.Listeners.ExpandNode.Handler = statusBar.ClientID + ".setStatus({text: 'Node Expanded: <b>' + node.text + '</b>', clear: true});";
tree.Listeners.ExpandNode.Delay = 30;
tree.Listeners.CollapseNode.Handler = statusBar.ClientID + ".setStatus({text: 'Node Collapsed: <b>' + node.text + '</b>', clear: true});"; Ext.Net.TreeNode root = new Ext.Net.TreeNode("Composers");
root.Expanded = true;
tree.Root.Add(root); List<Composer> composers = this.GetData(); foreach (Composer composer in composers)
{
Ext.Net.TreeNode composerNode = new Ext.Net.TreeNode(composer.Name, Icon.UserGray);
root.Nodes.Add(composerNode); foreach(Composition composition in composer.Compositions)
{
Ext.Net.TreeNode compositionNode = new Ext.Net.TreeNode(composition.Type.ToString());
composerNode.Nodes.Add(compositionNode); foreach (Piece piece in composition.Pieces)
{
Ext.Net.TreeNode pieceNode = new Ext.Net.TreeNode(piece.Title, Icon.Music);
compositionNode.Nodes.Add(pieceNode);
}
}
}
} public class Composer
{
public Composer(string name) { this.Name = name; }
public string Name { get; set; } private List<Composition> compositions;
public List<Composition> Compositions
{
get
{
if (this.compositions == null)
{
this.compositions = new List<Composition>();
}
return this.compositions;
}
}
} public class Composition
{
public Composition() { } public Composition(CompositionType type)
{
this.Type = type;
} public CompositionType Type { get; set; } private List<Piece> pieces;
public List<Piece> Pieces
{
get
{
if (this.pieces == null)
{
this.pieces = new List<Piece>();
}
return this.pieces;
}
}
} public class Piece
{
public Piece() {} public Piece(string title)
{
this.Title = title;
} public string Title { get; set; }
} public enum CompositionType
{
Concertos,
Quartets,
Sonatas,
Symphonies
} public List<Composer> GetData()
{
Composer beethoven = new Composer("Beethoven"); Composition beethovenConcertos = new Composition(CompositionType.Concertos);
Composition beethovenQuartets = new Composition(CompositionType.Quartets);
Composition beethovenSonatas = new Composition(CompositionType.Sonatas);
Composition beethovenSymphonies = new Composition(CompositionType.Symphonies); beethovenConcertos.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "No. 1 - C" },
new Piece{ Title = "No. 2 - B-Flat Major" },
new Piece{ Title = "No. 3 - C Minor" },
new Piece{ Title = "No. 4 - G Major" },
new Piece{ Title = "No. 5 - E-Flat Major" }
}); beethovenQuartets.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Six String Quartets" },
new Piece{ Title = "Three String Quartets" },
new Piece{ Title = "Grosse Fugue for String Quartets" }
}); beethovenSonatas.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Sonata in A Minor" },
new Piece{ Title = "sonata in F Major" }
}); beethovenSymphonies.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "No. 1 - C Major" },
new Piece{ Title = "No. 2 - D Major" },
new Piece{ Title = "No. 3 - E-Flat Major" },
new Piece{ Title = "No. 4 - B-Flat Major" },
new Piece{ Title = "No. 5 - C Minor" },
new Piece{ Title = "No. 6 - F Major" },
new Piece{ Title = "No. 7 - A Major" },
new Piece{ Title = "No. 8 - F Major" },
new Piece{ Title = "No. 9 - D Minor" }
}); beethoven.Compositions.AddRange(new List<Composition>{
beethovenConcertos,
beethovenQuartets,
beethovenSonatas,
beethovenSymphonies
}); Composer brahms = new Composer("Brahms"); Composition brahmsConcertos = new Composition(CompositionType.Concertos);
Composition brahmsQuartets = new Composition(CompositionType.Quartets);
Composition brahmsSonatas = new Composition(CompositionType.Sonatas);
Composition brahmsSymphonies = new Composition(CompositionType.Symphonies); brahmsConcertos.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Violin Concerto" },
new Piece{ Title = "Double Concerto - A Minor" },
new Piece{ Title = "Piano Concerto No. 1 - D Minor" },
new Piece{ Title = "Piano Concerto No. 2 - B-Flat Major" }
}); brahmsQuartets.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Piano Quartet No. 1 - G Minor" },
new Piece{ Title = "Piano Quartet No. 2 - A Major" },
new Piece{ Title = "Piano Quartet No. 3 - C Minor" },
new Piece{ Title = "Piano Quartet No. 3 - B-Flat Minor" }
}); brahmsSonatas.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Two Sonatas for Clarinet - F Minor" },
new Piece{ Title = "Two Sonatas for Clarinet - E-Flat Major" }
}); brahmsSymphonies.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "No. 1 - C Minor" },
new Piece{ Title = "No. 2 - D Minor" },
new Piece{ Title = "No. 3 - F Major" },
new Piece{ Title = "No. 4 - E Minor" }
}); brahms.Compositions.AddRange(new List<Composition>{
brahmsConcertos,
brahmsQuartets,
brahmsSonatas,
brahmsSymphonies
}); Composer mozart = new Composer("Mozart"); Composition mozartConcertos = new Composition(CompositionType.Concertos); mozartConcertos.Pieces.AddRange(new List<Piece> {
new Piece{ Title = "Piano Concerto No. 12" },
new Piece{ Title = "Piano Concerto No. 17" },
new Piece{ Title = "Clarinet Concerto" },
new Piece{ Title = "Violin Concerto No. 5" },
new Piece{ Title = "Violin Concerto No. 4" }
}); mozart.Compositions.Add(mozartConcertos); return new List<Composer>{ beethoven, brahms, mozart };
}
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