accordiondesigner.cs

AJAX 应用 实现页面的无刷新

// (c) Copyright Microsoft Corporation.
// This source is subject to the Microsoft Permissive License.
// See http://www.microsoft.com/resources/sharedsource/licensingbasics/sharedsourcelicenses.mspx.
// All other rights reserved.

using System;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.Design.WebControls;

namespace AjaxControlToolkit
{
    /// <summary>
    /// Simple read-only designer for the Accordion control
    /// </summary>
    [SuppressMessage("Microsoft.Security", "CA2117:AptcaTypesShouldOnlyExtendAptcaBaseTypes", Justification = "Security handled by base class")]
    public class AccordionDesigner : ControlDesigner
    {
        /// <summary>
        /// Reference to the Accordion control we're designing
        /// </summary>
        private Accordion _accordion;

        /// <summary>
        /// Initializes a new instances of the AccordionDesigner class
        /// </summary>
        [SuppressMessage("Microsoft.Security", "CA2116:AptcaMethodsShouldOnlyCallAptcaMethods", Justification = "Security handled by base class")]
        public AccordionDesigner()
        {
        }

        /// <summary>
        /// Initialize to make sure we're attached to an accordion control
        /// </summary>
        /// <param name="component">Component</param>
        [SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", Justification = "Assembly is not localized")]
        [SuppressMessage("Microsoft.Security", "CA2116:AptcaMethodsShouldOnlyCallAptcaMethods", Justification = "Security handled by base class")]
        public override void Initialize(IComponent component)
        {
            _accordion = component as Accordion;
            if (_accordion == null)
                throw new ArgumentException("Component must be an Accordion control", "component");
            base.Initialize(component);
        }

        /// <summary>
        /// Get the HTML for the Accordion
        /// </summary>
        /// <returns>HTML design time representation</returns>
        [SuppressMessage("Microsoft.Performance", "CA1804:RemoveUnusedLocals", MessageId = "controls", Justification = "See code comment below")]
        [SuppressMessage("Microsoft.Security", "CA2116:AptcaMethodsShouldOnlyCallAptcaMethods", Justification = "Security handled by base class")]
        public override string GetDesignTimeHtml()
        {
            // Ensure the controls have been created
            ControlCollection controls = _accordion.Controls;

            // Get the base html for the accordion's div
            // so that any accordion styles will be applied
            StringBuilder html = new StringBuilder();
            html.Append(base.GetDesignTimeHtml());

            // Remove the closing div tag so we can insert the HTML
            // for all of the panes
            html.Remove(html.Length - 6, 6);

            // Add the HTMl for each pane
            foreach (AccordionPane pane in _accordion.Panes)
            {
                html.Append("<span>");
                string headerCSS = !string.IsNullOrEmpty(pane.HeaderCssClass) ? pane.HeaderCssClass : _accordion.HeaderCssClass;
                html.AppendFormat("<div class=\"{0}\">", headerCSS);
                TemplateBuilder builder = pane.Header as TemplateBuilder;
                if (builder != null)
                    html.Append(builder.Text);
                html.Append("</div>");

                string contentCSS = !string.IsNullOrEmpty(pane.ContentCssClass) ? pane.ContentCssClass : _accordion.ContentCssClass;
                html.AppendFormat("<div class=\"{0}\">", contentCSS);
                builder = pane.Content as TemplateBuilder;
                if (builder != null)
                    html.Append(builder.Text);
                html.Append("</div>");
                html.Append("</span>");
            }

            html.Append("</div>");
            return html.ToString();
        }
    }
}