Source Code

for file App_Code/VEControls/LightBoxDialog.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;

// LightBoxDialog.ascx
// WebControl implementation for the LightBoxDialog AJAX Control.
// Copyright (c) by Matthias Hertel, http://www.mathertel.de
// This work is licensed under a BSD style license. See http://www.mathertel.de/License.aspx
// ----- 
// 22.08.2006 created by Matthias Hertel
// 28.12.2007 documentation and minor changes

namespace VEControls {

  /// <summary>
  /// 
  /// </summary>
  [ToolboxData("<{0}:Part runat='server'></{0}:Part>")]
  public class LightBoxDialog : Panel {
    private string _title;

    public string Title {
      get { return _title; }
      set { _title = value; }
    }

    public LightBoxDialog() {
      this.CssClass = "LIGHTBOXDIALOG";
      this._title = "Dialog";
    } // LightBoxDialog


    protected override void OnPreRender(EventArgs e) {
      base.OnPreRender(e);

      if ((this.ID == null) || (this.ID.Length == 0))
        this.ID = this.ClientID;

      if (Page.Header == null)
        throw new Exception("The <head> element of this page is not marked with runat='server'.");

      // register the JavaScripts includes without need for a Form.
      if (!Page.ClientScript.IsClientScriptBlockRegistered(Page.GetType(), "CommonBehaviour")) {
        Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "CommonBehaviour", String.Empty);
        ((HtmlHead)Page.Header).Controls.Add(new LiteralControl("<script type='text/javascript' src='"
          + Page.ResolveUrl("~/controls/jcl.js")
          + "'><" + "/script>\n"));
      } // if

      if (!Page.ClientScript.IsClientScriptBlockRegistered(this.GetType(), "MyBehavior")) {
        Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "MyBehavior", String.Empty);
        ((HtmlHead)Page.Header).Controls.Add(new LiteralControl("<script type='text/javascript' src='"
          + Page.ResolveUrl("~/controls/LightBoxDialog.js")
          + "'><" + "/script>\n"));
      } // if
    } // OnPreRender

    
    protected override void RenderChildren(HtmlTextWriter writer) {
      // add a Dialog Title
      if ((_title != null) && (_title.Length > 0)) {
        writer.AddAttribute(HtmlTextWriterAttribute.Class, "DIALOGHEADER");
        writer.RenderBeginTag(HtmlTextWriterTag.Div);
        writer.Write(_title);
        writer.RenderEndTag();
      } // if
      base.RenderChildren(writer);
    } // RenderChildren


    protected override void Render(HtmlTextWriter output) {
      base.Render(output);

      output.WriteLine(@"<script defer='defer' type='text/javascript'>jcl.LoadBehaviour('"
      + this.ClientID + @"', jcl.LightBoxDialogBehavior);</script>");
    } // Render

  } // class
} // namespace
This page is part of the http://www.mathertel.de/AJAXEngine/default.aspx project. For updates and discussions see The AJAX Engine blog.
For updates and discussions see http://ajaxaspects.blogspot.com/.