UrlImageStringElement.cs

using System;
using MonoTouch.CoreFoundation;
using MonoTouch.Foundation;
using MonoTouch.UIKit;
using MonoTouch.Dialog;


namespace FbGroups
{
	public class UrlImageStringElement<TKey> : ImageStringElement, MonoTouch.UrlImageStore.IUrlImageUpdated<TKey>
	{
		UITableViewCell cell = null;
		UITableView tableView = null;
		
		MonoTouch.UrlImageStore.UrlImageStore<TKey> imgStore = null;
		
		public UrlImageStringElement (MonoTouch.UrlImageStore.UrlImageStore<TKey> imageStore, 
			string caption, 
			NSAction tapped, 
			string imageUrl, 
			TKey id) : base(caption, tapped, imageStore.DefaultImage)
		{
			this.imgStore = imageStore;
			this.Id = id;
			this.ImageUrl = imageUrl;
		}
		
		public UrlImageStringElement(MonoTouch.UrlImageStore.UrlImageStore<TKey> imageStore, 
			string caption, 
			string imageUrl, 
			TKey id) : base(caption, imageStore.DefaultImage)
		{
			this.imgStore = imageStore;
			this.Id = id;
			this.ImageUrl = imageUrl;
		}
		
		public void UrlImageUpdated (TKey id)
		{
			if (this.Id.Equals(id))
			{
				var img = this.imgStore.GetImage(id);
				this.cell.BeginInvokeOnMainThread(delegate { 
					this.cell.ImageView.Image = img; 
					this.tableView.ReloadData(); });
			}
		}
				
		public override UITableViewCell GetCell (MonoTouch.UIKit.UITableView tv)
		{
			cell = base.GetCell (tv);
			tableView = tv;
			
			this.cell.ImageView.Image = this.imgStore.RequestImage(this.Id, this.ImageUrl, this);
			
			return cell;
		}	
							
		public TKey Id
		{
			get;set;
		}
				
		public string ImageUrl 
		{
			get;set;					
		}
	}
}