www.pudn.com > PropertyBag.rar > PropBagTestForm.cs
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Flobbster.Windows.Forms;
namespace PropertyBagTester
{
public class PropBagTestForm : System.Windows.Forms.Form
{
private Flobbster.Windows.Forms.PropertyBag bag1;
private Flobbster.Windows.Forms.PropertyBag bag2;
private Flobbster.Windows.Forms.PropertyTable bag3;
//
private System.Windows.Forms.ListView listView;
private System.Windows.Forms.PropertyGrid propertyGrid;
private System.ComponentModel.IContainer components;
private System.Windows.Forms.ContextMenu contextMenu;
private System.Windows.Forms.MenuItem menuReset;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ImageList imageList;
// A simple enumerated type used in the property bags.
private enum Fruit
{
Apple, Banana, Orange, Peach, Pear
}
public PropBagTestForm()
{
InitializeComponent();
// Create the first property bag and add some properties.
bag1 = new PropertyBag();
bag1.GetValue += new PropertySpecEventHandler(this.bag1_GetValue);
bag1.SetValue += new PropertySpecEventHandler(this.bag1_SetValue);
bag1.Properties.Add(new PropertySpec("Fruit", typeof(Fruit), null, null, Fruit.Orange));
bag1.Properties.Add(new PropertySpec("Picture", typeof(Image), "Some Category",
"This is a sample description."));
ListViewItem item1 = new ListViewItem("Bag 1", 0);
item1.Tag = bag1;
listView.Items.Add(item1);
// Create the second property bag and add some properties.
bag2 = new PropertyBag();
bag2.GetValue += new PropertySpecEventHandler(this.bag2_GetValue);
bag2.SetValue += new PropertySpecEventHandler(this.bag2_SetValue);
bag2.Properties.Add(new PropertySpec("Fruit", typeof(Fruit), null, null, Fruit.Banana));
bag2.Properties.Add(new PropertySpec("Typeface", typeof(Font), "Another Category", null,
new Font("Tahoma", 8.25f)));
bag2.Properties.Add(new PropertySpec("Some Boolean", "System.Boolean", "Some Category", null,
false));
ListViewItem item2 = new ListViewItem("Bag 2", 0);
item2.Tag = bag2;
listView.Items.Add(item2);
// This time, create a property table. It uses a Hashtable to store
// values, so we don't need to wire GetValue and SetValue events.
bag3 = new PropertyTable();
bag3.Properties.Add(new PropertySpec("Fruit", typeof(Fruit), null, null, Fruit.Orange));
bag3.Properties.Add(new PropertySpec("Picture", typeof(Image), "Some Category",
"This is a sample description."));
bag3.Properties.Add(new PropertySpec("Typeface", typeof(Font), "Another Category", null,
new Font("Tahoma", 8.25f)));
bag3.Properties.Add(new PropertySpec("Some Boolean", "System.Boolean", "Some Category", null,
false));
bag3.Properties.Add(new PropertySpec("Number", "System.Int64", null, "A big number.", 1234567890L));
// Create a property that uses additional attributes.
PropertySpec ps = new PropertySpec("Can't Touch This", typeof(string), null,
"This property is read-only.", "Some Default String");
ps.Attributes = new Attribute[] {
ReadOnlyAttribute.Yes
};
bag3.Properties.Add(ps);
// Assign values to the properties above.
bag3["Fruit"] = Fruit.Apple;
bag3["Picture"] = null;
bag3["Typeface"] = new Font("Times New Roman", 12f);
bag3["Some Boolean"] = true;
bag3["Number"] = 1234567890L;
bag3["Can't Touch This"] = "Some Default String";
ListViewItem item3 = new ListViewItem("Table", 0);
item3.Tag = bag3;
listView.Items.Add(item3);
}
protected override void Dispose(bool disposing)
{
if(disposing)
if(components != null)
components.Dispose();
base.Dispose(disposing);
}
#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(PropBagTestForm));
this.listView = new System.Windows.Forms.ListView();
this.imageList = new System.Windows.Forms.ImageList(this.components);
this.propertyGrid = new System.Windows.Forms.PropertyGrid();
this.contextMenu = new System.Windows.Forms.ContextMenu();
this.menuReset = new System.Windows.Forms.MenuItem();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// listView
//
this.listView.HideSelection = false;
this.listView.LargeImageList = this.imageList;
this.listView.Location = new System.Drawing.Point(8, 32);
this.listView.Name = "listView";
this.listView.Size = new System.Drawing.Size(168, 264);
this.listView.TabIndex = 1;
this.listView.SelectedIndexChanged += new System.EventHandler(this.listView_SelectedIndexChanged);
//
// imageList
//
this.imageList.ImageSize = new System.Drawing.Size(32, 32);
this.imageList.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList.ImageStream")));
this.imageList.TransparentColor = System.Drawing.Color.Transparent;
//
// propertyGrid
//
this.propertyGrid.CommandsVisibleIfAvailable = true;
this.propertyGrid.ContextMenu = this.contextMenu;
this.propertyGrid.LargeButtons = false;
this.propertyGrid.LineColor = System.Drawing.SystemColors.ScrollBar;
this.propertyGrid.Location = new System.Drawing.Point(184, 32);
this.propertyGrid.Name = "propertyGrid";
this.propertyGrid.Size = new System.Drawing.Size(272, 264);
this.propertyGrid.TabIndex = 1;
this.propertyGrid.Text = "propertyGrid1";
this.propertyGrid.ViewBackColor = System.Drawing.SystemColors.Window;
this.propertyGrid.ViewForeColor = System.Drawing.SystemColors.WindowText;
//
// contextMenu
//
this.contextMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuReset});
//
// menuReset
//
this.menuReset.Index = 0;
this.menuReset.Text = "Reset";
this.menuReset.Click += new System.EventHandler(this.menuReset_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(8, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(448, 23);
this.label1.TabIndex = 2;
this.label1.Text = "Select one or multiple items in the list to see those objects in the property gri" +
"d.";
//
// PropBagTestForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
this.ClientSize = new System.Drawing.Size(464, 301);
this.Controls.Add(this.label1);
this.Controls.Add(this.propertyGrid);
this.Controls.Add(this.listView);
this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "PropBagTestForm";
this.Text = "PropertyBag Test Form";
this.ResumeLayout(false);
}
#endregion
[STAThread] static void Main() { Application.Run(new PropBagTestForm()); }
private void listView_SelectedIndexChanged(object sender, System.EventArgs e)
{
ArrayList objs = new ArrayList();
foreach(ListViewItem item in listView.SelectedItems)
objs.Add(item.Tag);
propertyGrid.SelectedObjects = objs.ToArray();
}
private void menuReset_Click(object sender, System.EventArgs e)
{
if(propertyGrid.SelectedObject != null &&
propertyGrid.SelectedGridItem != null)
{
propertyGrid.ResetSelectedProperty();
}
}
// Member variables associated with the properties of bag 1 and
// bag 2. Since events are fired to query these, you could use
// any source--variables, contents of a file, a database, etc.
private Fruit bag1_Fruit = Fruit.Orange;
private Image bag1_Picture = null;
private Fruit bag2_Fruit = Fruit.Banana;
private Font bag2_Typeface = new Font("Tahoma", 8.25f);
private bool bag2_SomeBoolean = false;
// This is a pretty basic way to handle the properties. Optimally,
// you might have some kind of table that indexes into a database
// or file where the values are stored. But for the purposes of this
// example, a simple case statement will do.
private void bag1_GetValue(object sender, PropertySpecEventArgs e)
{
switch(e.Property.Name)
{
case "Fruit": e.Value = bag1_Fruit; break;
case "Picture": e.Value = bag1_Picture; break;
}
}
private void bag1_SetValue(object sender, PropertySpecEventArgs e)
{
switch(e.Property.Name)
{
case "Fruit": bag1_Fruit = (Fruit)e.Value; break;
case "Picture": bag1_Picture = (Image)e.Value; break;
}
}
private void bag2_GetValue(object sender, PropertySpecEventArgs e)
{
switch(e.Property.Name)
{
case "Fruit": e.Value = bag2_Fruit; break;
case "Typeface": e.Value = bag2_Typeface; break;
case "Some Boolean": e.Value = bag2_SomeBoolean; break;
}
}
private void bag2_SetValue(object sender, PropertySpecEventArgs e)
{
switch(e.Property.Name)
{
case "Fruit": bag2_Fruit = (Fruit)e.Value; break;
case "Typeface": bag2_Typeface = (Font)e.Value; break;
case "Some Boolean": bag2_SomeBoolean = (bool)e.Value; break;
}
}
}
}