Commit for development environment setup

PROMS/DropDownPanel_sol/Demo/MainForm.cs

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+using System;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Windows.Forms;
+
+using AT.STO.UI.Win;
+
+namespace Demo
+{
+	public partial class MainForm : Form
+	{
+	#region Constructor / Destructor
+		public MainForm()
+		{
+			InitializeComponent();
+		}
+	#endregion
+	#region Form Events
+		protected override void OnLoad(EventArgs e)
+		{
+			base.OnLoad(e);
+			InitializeDerived();
+			InitializePanel();
+		}
+	#endregion
+	#region Event Handler
+		private void DropDown_FinishEditing(object sender, DropDownValueChangedEventArgs e)
+		{
+			LogEvent((sender as Control).Name + ".FinishEditing", e.Value);
+		}
+		
+		private void DropDown_ValueChanged(object sender, DropDownValueChangedEventArgs e)
+		{
+			LogEvent((sender as Control).Name + ".ValueChanged", e.Value);
+		}
+	#endregion
+	#region Private Methods
+		/// <summary>
+		/// Populates a given DropDownTree.
+		/// </summary>
+		/// <param name="Tree"></param>
+		private void CreateNodes(DropDownTree Tree)
+		{
+			DropDownNode root = new DropDownNode(1, "1");
+	
+			Tree.Nodes.Clear();
+			Tree.Nodes.Add(root);
+			
+			for (int i = 1; i <= 20; i++)
+			{
+				DropDownNode node = new DropDownNode(i * 1000, "1." + i.ToString("00"));
+				root.Nodes.Add(node);
+				
+				for (int j = 1; j <= 2; j++)
+				{
+					node.Nodes.Add(new DropDownNode((i * 1000) + (j * 10),  "1." + i.ToString("00") + "." + j.ToString()));
+				}
+			}
+			
+			root.Expand();
+		}
+		
+		private DropDownTree CreateTree()
+		{
+			DropDownTree tree = new DropDownTree();
+			
+			tree.BorderStyle = BorderStyle.None;				// border is drawn by the DropDownForm.
+			tree.Size = new Size(200, 300);						// the DropDownPanel will be sized to make the tree fit.
+			
+			CreateNodes(tree);
+			
+			return tree;
+		}
+		
+		/// <summary>
+		/// Create and initialize the DerivedTreeCombo.
+		/// </summary>
+		private void InitializeDerived()
+		{
+			derivedTreeCombo.DropDownControl.Size = new Size(200, 300);
+			CreateNodes(derivedTreeCombo.DropDownControl);
+			
+			derivedTreeCombo.FinishEditing += new DropDownValueChangedEventHandler(DropDown_FinishEditing);
+			derivedTreeCombo.ValueChanged += new DropDownValueChangedEventHandler(DropDown_ValueChanged);
+		}
+		
+		/// <summary>
+		/// Create and initialize the DropDownTree.
+		/// </summary>
+		/// <returns></returns>
+		private void InitializePanel()
+		{
+			treePanel.DropDownControl = CreateTree();			// make the DropDownTree the DropDownPanels control to display. 
+			treePanel.FinishEditing += new DropDownValueChangedEventHandler(DropDown_FinishEditing);
+			treePanel.ValueChanged += new DropDownValueChangedEventHandler(DropDown_ValueChanged);
+		}
+		
+		private void LogEvent(string Event, object Value)
+		{
+			if (txtMsg.Lines.Length > 20)
+			{
+				txtMsg.Clear();
+			}
+		
+			txtMsg.AppendText(Event + ": " + ((Value == null) ? "user canceled" : Value.ToString()) + "\r\n");
+		}
+	#endregion
+	}
+}