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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections;
namespace TestsControls
{
[DefaultProperty("Text")]
[ToolboxData("<{0}:SmartTag runat=\"server\"></{0}:SmartTag>")]
[ParseChildren(true, "ListItems")]
public class SmartTag : WebControl, IButtonControl
{
#region proriétés
private SmartTagItemCollection _itemList = new SmartTagItemCollection();
[Category("Data"),
DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
PersistenceMode(PersistenceMode.InnerDefaultProperty),
Description("Collection des sous commandes.")]
public SmartTagItemCollection ListItems
{
get
{
return _itemList;
}
set
{
_itemList = value;
}
}
[DefaultValue("20px")]
public override Unit Height
{
get
{
return base.Height.IsEmpty ? new Unit(20) : base.Height;
}
set
{
base.Height = value;
}
}
[DefaultValue("15px")]
public override Unit Width
{
get
{
return base.Width.IsEmpty ? new Unit(15) : base.Width;
}
set
{
base.Width = value;
}
}
[UrlProperty()]
public String SmartTagImage
{
get
{
String s = (String)ViewState["SmartTagImage"];
return ((s == null) ? String.Empty : s);
}
set
{
ViewState["SmartTagImage"] = value;
}
}
#endregion
#region overloads methods
protected override void RenderContents(HtmlTextWriter output)
{
String html;
html = "<div style=\"background-color: #d3d3d3; width : " + this.Width + "; height: " + this.Height + ";\">\n" +
"<img src=\"" + this.SmartTagImage + "\"/>\n" +
"</div>\n" +
"<br />\n";
output.Write(html);
foreach (SmartTagItem item in ListItems)
{
item.RenderControl(output);
output.Write("\n");
}
}
private void OnContentItemClicked(object sender, EventArgs e)
{
}
protected override void OnPreRender(EventArgs e)
{
_itemList.SmartTagClicked += new EventHandler(SmartTag_Click);
base.OnPreRender(e);
}
#endregion
#region private methods
void SmartTag_Click(object sender, EventArgs e)
{
if (sender is SmartTagItem)
{
SmartTagItem item = (sender as SmartTagItem);
CommandEventArgs command = new CommandEventArgs(item.SubCommandName, this.CommandArgument);
this.Command(this, command);
}
else
throw new ArgumentException("The itemClicked isn't a smart tag item");
}
#endregion
#region IButtonControl Membres Implicites
public bool CausesValidation
{
get
{
Object returnValue = this.ViewState["CauseValidation"];
return returnValue == null ? false : (bool)returnValue;
}
}
public event CommandEventHandler Command;
public string CommandArgument
{
get
{
return this.ViewState["CommandArgument"] == null ? "" : this.ViewState["CommandArgument"].ToString();
}
set
{
this.ViewState["CommandArgument"] = value;
}
}
public string CommandName
{
get
{
return this.ViewState["CommandName"] == null ? "" : this.ViewState["CommandName"].ToString();
}
}
public string PostBackUrl
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
public string ValidationGroup
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
#endregion
#region IButtonControl Membres
bool IButtonControl.CausesValidation
{
get
{
return this.CausesValidation;
}
set
{
this.ViewState["CauseValidation"] = value;
}
}
event EventHandler IButtonControl.Click
{
add { throw new Exception("The method or operation is not implemented."); }
remove { throw new Exception("The method or operation is not implemented."); }
}
string IButtonControl.CommandName
{
get
{
return this.CommandName;
}
set
{
this.ViewState["CommandName"] = value;
}
}
string IButtonControl.Text
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
#endregion
}
public class SmartTagItemCollection : IList
{
#region private members
private ArrayList _arrayList;
#endregion
#region constructors
public SmartTagItemCollection()
{
_arrayList = new ArrayList();
}
#endregion
#region public Methods
public SmartTagItem this[int index]
{
get
{
return (SmartTagItem)_arrayList[index];
}
set
{
_arrayList[index] = value;
}
}
public int Add(string imageUrl, string subCommandName)
{
SmartTagItem item = new SmartTagItem();
item.ImageUrl = imageUrl;
item.SubCommandName = subCommandName;
item.Click += new EventHandler(SmartTagItem_Click);
return this.Add(item);
}
public int Add(SmartTagItem obj)
{
int index = _arrayList.Add(obj);
obj.Click += new EventHandler(SmartTagItem_Click);
return index;
}
public void Insert(int index, SmartTagItem obj)
{
_arrayList.Insert(index, obj);
obj.Click += new EventHandler(SmartTagItem_Click);
}
public void RemoveAt(int index)
{
SmartTagItem elementAt = _arrayList[index] as SmartTagItem;
_arrayList.RemoveAt(index);
elementAt.Click -= new EventHandler(SmartTagItem_Click);
}
public void Remove(SmartTagItem obj)
{
_arrayList.Remove(obj);
obj.Click -= new EventHandler(SmartTagItem_Click);
}
#endregion
#region public events
public event EventHandler SmartTagClicked;
#endregion
#region private methods
private void SmartTagItem_Click(Object sender, EventArgs e)
{
if (this.SmartTagClicked != null)
this.SmartTagClicked(sender, e);
}
#endregion
#region IList Membres
int IList.Add(object obj)
{
(obj as SmartTagItem).Click += new EventHandler(SmartTagItem_Click);
return _arrayList.Add(obj);
}
public void Clear()
{
foreach (object obj in _arrayList)
(obj as SmartTagItem).Click -= new EventHandler(SmartTagItem_Click);
_arrayList.Clear();
}
public bool Contains(object obj)
{
return _arrayList.Contains(obj);
}
public int IndexOf(object obj)
{
return _arrayList.IndexOf(obj);
}
void IList.Insert(int index, object obj)
{
if (obj is SmartTagItem)
{
this.Insert(index, (SmartTagItem)obj);
(obj as SmartTagItem).Click += new EventHandler(SmartTagItem_Click);
}
else
throw new ArgumentException("The object must be a SmartTagItem");
}
public bool IsFixedSize
{
get
{
return false;
}
}
public bool IsReadOnly
{
get { return false; }
}
void IList.Remove(object obj)
{
if (obj is SmartTagItem)
{
this.Remove((SmartTagItem)obj);
(obj as SmartTagItem).Click -= new EventHandler(SmartTagItem_Click);
}
else
throw new ArgumentException("This List can only contain SmartTagItems");
}
void IList.RemoveAt(int index)
{
Object obj = this[index];
this.RemoveAt(index);
(obj as SmartTagItem).Click -= new EventHandler(SmartTagItem_Click);
}
object IList.this[int index]
{
get
{
return _arrayList[index];
}
set
{
_arrayList[index] = value;
}
}
#endregion
#region ICollection Membres
public void CopyTo(Array array, int index)
{
_arrayList.CopyTo(array, index);
}
public int Count
{
get
{
return _arrayList.Count;
}
}
public bool IsSynchronized
{
get
{
return _arrayList.IsSynchronized;
}
}
public object SyncRoot
{
get
{
return _arrayList.SyncRoot;
}
}
#endregion
#region IEnumerable Membres
public IEnumerator GetEnumerator()
{
return _arrayList.GetEnumerator();
}
#endregion
}
public class SmartTagItem : WebControl, IButtonControl
{
private string _imageUrl;
private string _subCommandName;
private ImageButton btn = new ImageButton();
public String SubCommandName
{
get { return _subCommandName; }
set { _subCommandName = value; }
}
[UrlProperty()]
public String ImageUrl
{
get { return _imageUrl; }
set { _imageUrl = value; }
}
protected override void Render(HtmlTextWriter writer)
{
btn.ImageUrl = ImageUrl;
btn.CommandName = SubCommandName;
btn.Width = new Unit(16);
btn.Height = new Unit(16);
btn.CausesValidation = false;
btn.Click += new ImageClickEventHandler(OnButtonClick);
btn.RenderControl(writer);
}
private void OnButtonClick(Object sender, EventArgs e)
{
if (this.Click != null)
this.Click(this, e);
}
#region IButtonControl Membres Explicit
public event EventHandler Click;
#endregion
#region IButtonControl Membres
bool IButtonControl.CausesValidation
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
event CommandEventHandler IButtonControl.Command
{
add { throw new Exception("The method or operation is not implemented."); }
remove { throw new Exception("The method or operation is not implemented."); }
}
string IButtonControl.CommandArgument
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
string IButtonControl.CommandName
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
string IButtonControl.PostBackUrl
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
string IButtonControl.Text
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
string IButtonControl.ValidationGroup
{
get
{
throw new Exception("The method or operation is not implemented.");
}
set
{
throw new Exception("The method or operation is not implemented.");
}
}
#endregion
}
} |
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