managesmiliesadmin.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using CommunityServer;
using CommunityServer.Components;


namespace CommunityServer.Controls {

	public class ManageSmiliesAdmin : TemplatedWebControl {

		#region Child Controls

		DataList ManageSmilies;

		#endregion

		#region Skin


		protected override void AttachChildControls() {

			ManageSmilies = (DataList)FindControl( "ManageSmilies" );

			InitializeChildControls();
		}

		private void InitializeChildControls() {
			ManageSmilies.DataKeyField = "SmileyID";

			ManageSmilies.ItemDataBound += new DataListItemEventHandler(ManageSmilies_ItemDataBound);

			ManageSmilies.EditCommand += new DataListCommandEventHandler(ManageSmilies_EditCommand);
			ManageSmilies.CancelCommand += new DataListCommandEventHandler(ManageSmilies_CancelCommand);
			ManageSmilies.DeleteCommand += new DataListCommandEventHandler(ManageSmilies_DeleteCommand);
			ManageSmilies.UpdateCommand += new DataListCommandEventHandler(ManageSmilies_UpdateCommand);
			ManageSmilies.ItemCommand += new DataListCommandEventHandler(ManageSmilies_ItemCommand);
		}

		#endregion

		#region Command Handlers

		private void ManageSmilies_EditCommand(object source, DataListCommandEventArgs e) {
			ManageSmilies.EditItemIndex = e.Item.ItemIndex;
			
			BindSmilies();
		}

		private void ManageSmilies_CancelCommand(object source, DataListCommandEventArgs e) {
			ManageSmilies.EditItemIndex = -1;
			
			BindSmilies();
		}

		private void ManageSmilies_DeleteCommand(object source, DataListCommandEventArgs e) {
			DeleteSmiley( e );
			
			ManageSmilies.EditItemIndex = -1;
			BindSmilies();
		}

		private void ManageSmilies_UpdateCommand(object source, DataListCommandEventArgs e) {
			UpdateSmiley( e );

			ManageSmilies.EditItemIndex = -1;
			BindSmilies();
		}

		private void ManageSmilies_ItemCommand(object source, DataListCommandEventArgs e) {
			if( e.CommandName == "Create" ) {
				CreateSmiley( e );
			
				BindSmilies();
			}
		}

		#endregion

		#region Command Implementations

		protected virtual void DeleteSmiley( DataListCommandEventArgs e ) {
			Int32 SmileyID = Convert.ToInt32( this.ManageSmilies.DataKeys[ e.Item.ItemIndex ] );
			Smiley smiley = GetSmiley( SmileyID );
			
			Smilies.DeleteSmiley( smiley );
		}

		protected virtual void UpdateSmiley( DataListCommandEventArgs e ) {
			TextBox SmileyCode = (TextBox)e.Item.FindControl( "SmileyCodeEdit" );
			TextBox SmileyUrl = (TextBox)e.Item.FindControl( "SmileyUrlEdit" );
			TextBox SmileyText = (TextBox)e.Item.FindControl( "SmileyTextEdit" );

			if ( SmileyCode == null || SmileyUrl == null || SmileyText == null ) {
				return;
			}

			Int32 SmileyID = Convert.ToInt32( this.ManageSmilies.DataKeys[ e.Item.ItemIndex ] );
			Smiley smiley = GetSmiley( SmileyID );

			if ( smiley.SmileyCode == SmileyCode.Text && smiley.SmileyUrl == SmileyUrl.Text && smiley.SmileyText == SmileyText.Text ) {
				return;
			}

			smiley.SmileyCode = SmileyCode.Text;
			smiley.SmileyUrl = SmileyUrl.Text;
			smiley.SmileyText = SmileyText.Text;

			Smilies.UpdateSmiley( smiley );
		}

		protected virtual void CreateSmiley( DataListCommandEventArgs e ) {
			TextBox SmileyCode = (TextBox)e.Item.FindControl( "NewSmileyCode" );
			TextBox SmileyUrl = (TextBox)e.Item.FindControl( "NewSmileyUrl" );
			TextBox SmileyText = (TextBox)e.Item.FindControl( "NewSmileyText" );

			if ( SmileyCode == null || SmileyUrl == null || SmileyText == null ) {
				return;
			}

			Smiley smiley = new Smiley( 0, SmileyCode.Text, SmileyUrl.Text, SmileyText.Text, false );
			Smilies.CreateSmiley( smiley );
		}

		#endregion

		protected override void OnLoad(EventArgs e) {
			if ( !Page.IsPostBack ) {
				this.DataBind();
			}
			base.OnLoad( e );
		}

		public override void DataBind(){
			base.DataBind();

			BindSmilies();
		}

		private void BindSmilies() {
			ManageSmilies.DataSource = Smilies.GetSmilies(false);
			ManageSmilies.DataBind();
		}

		private void ManageSmilies_ItemDataBound(object sender, DataListItemEventArgs e) {
			Smiley dataItem = e.Item.DataItem as Smiley;

			switch( e.Item.ItemType ) {
				case ListItemType.Item:
				case ListItemType.AlternatingItem:

					Label SmileyIDLabel = (Label)e.Item.FindControl( "SmileyID" );
					Label SmileyCodeLabel = (Label)e.Item.FindControl( "SmileyCode" );
					Label SmileyUrlLabel = (Label)e.Item.FindControl( "SmileyUrl" );
					Image SmileyImage = (Image)e.Item.FindControl( "SmileyImage" );
					Label SmileyTextLabel = (Label)e.Item.FindControl( "SmileyText" );
					
					Button EditButton = (Button)e.Item.FindControl( "Edit" );
					Button DeleteButton = (Button)e.Item.FindControl( "Delete" );

					SmileyIDLabel.Text = dataItem.SmileyId.ToString();
					SmileyCodeLabel.Text = dataItem.SmileyCode;
					SmileyUrlLabel.Text = dataItem.SmileyUrl;
					SmileyImage.AlternateText = dataItem.SmileyText;
					SmileyImage.ImageUrl = Globals.ApplicationPath + "/" + dataItem.SmileyUrl;
					SmileyTextLabel.Text = dataItem.SmileyText;

					EditButton.Text = ResourceManager.GetString( "Edit" );
					DeleteButton.Text = ResourceManager.GetString( "Delete" );

					break;
				case ListItemType.EditItem:

					Label SmileyID = (Label)e.Item.FindControl( "SmileyIDEdit" );
					TextBox SmileyCode = (TextBox)e.Item.FindControl( "SmileyCodeEdit" );
					TextBox SmileyUrl = (TextBox)e.Item.FindControl( "SmileyUrlEdit" );
					TextBox SmileyText = (TextBox)e.Item.FindControl( "SmileyTextEdit" );
					Button UpdateButton = (Button)e.Item.FindControl( "Update" );
					Button CancelButton = (Button)e.Item.FindControl( "Cancel" );

					if(SmileyID == null)
						throw new Exception("hey!");

					SmileyID.Text = dataItem.SmileyId.ToString();
					SmileyCode.Text = dataItem.SmileyCode;
					SmileyUrl.Text = dataItem.SmileyUrl;
					SmileyText.Text = dataItem.SmileyText;
					UpdateButton.Text = ResourceManager.GetString( "Update" );
					CancelButton.Text = ResourceManager.GetString( "Cancel" );

					break;
				case ListItemType.Footer:

					Button CreateButton = (Button)e.Item.FindControl( "Create" );
					CreateButton.Text = ResourceManager.GetString( "Create" );

					break;
			}
		}
		private Smiley GetSmiley( Int32 smileyID ) {
			Smiley apiProvidedSmiley = Smilies.GetSmiley( smileyID );
			if ( apiProvidedSmiley != null ) {
				return apiProvidedSmiley;
			}

			foreach( Smiley smiley in Smilies.GetSmilies() ) {
				if ( smiley.SmileyId == smileyID ) {
					return smiley;
				}
			}
			return null;
		}
	}
}