haha2

using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Web;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.Design.WebControls;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace AspDemo
{
    css集合#region css集合
     [Description("样式类")]
    [TypeConverter(typeof(ExpandableObjectConverter))]

    public class CssNames
    {


       
        private string _tagClass = "";
         [Description("未选择标签的样式")]

        [NotifyParentProperty(true)]

        public string TagUnSelectedClass
        {
            get { return _tagClass; }
            set { _tagClass = value; }
        }
        private string _tagContentClass = "";
         [Description("标签内样式")]

        [NotifyParentProperty(true)]

        public string TagContentClass
        {
            get { return _tagContentClass; }
            set { _tagContentClass = value; }
        }

        
        private string _divContent = "";
        [NotifyParentProperty(true)]
        [Description("内容样式")]
        public string DivContent
        {
            get { return _divContent; }
            set { _divContent = value; }
        }

        private string _selectedClass = "";
        [NotifyParentProperty(true)]
          [Description("已选择标签的样式")]
        public string TagSelectedClass
        {
            get { return _selectedClass; }
            set { _selectedClass = value; }
        }
    }
    #endregion

    Template#region Template
    [PersistenceMode(PersistenceMode.InnerProperty)]
    public class Template
    {
       
        private ITemplate _tag = null;
        private string _tagName;

        [PersistenceMode(PersistenceMode.InnerProperty)]
        [Description("添加控件")]
        public ITemplate AddControl
        {
            get { return _tag; }
            set { _tag = value; }
        }
        [Description("标签名")]
        public string TagName
        {
            get { return _tagName; }
            set { _tagName = value; }
        }
    }

    public class TagCollection : System.Collections.ObjectModel.Collection<Template>
    {

    }
    
    #endregion Template

    tagControl#region tagControl
    [PersistChildren(false), ParseChildren(true)]
    [ToolboxData("<{0}:TagsControl runat=\"server\" height=\"200\" width=\"200\"></{0}:TagsControl>"), Designer(typeof(TagsControlDesigner))]

    public class TagsControl : CompositeControl
    {  
    构造函数#region 构造函数 
        public TagsControl()
        {


        }
        /**//// <summary>
        /// 创造一个标签
        /// </summary>
        /// <param name="name">标签名</param>
        public TagsControl(string name)
        {
            Template m = new Template();
            m.TagName = name;
            this.Tags.Add(m);

        }
#endregion 
    
    事件#region 事件
        public event EventHandler Click;
        public event EventHandler Reset;
        public event EventHandler Submit;
        protected override bool OnBubbleEvent(object source, EventArgs e)
        {
            bool handled = false;
            if (e is CommandEventArgs)
            {
                CommandEventArgs ce = (CommandEventArgs)e;
                if (ce.CommandName == "Click")
                {
                    OnClick(ce);
                    handled = true;
                }
                else if (ce.CommandName == "Reset")
                {
                    OnReset(ce);
                    handled = true;
                }
                else if (ce.CommandName == "Submit")
                {
                    OnSubmit(ce);
                    handled = true;
                }

            }
            return handled;     
           // return base.OnBubbleEvent(source, args);
        }
        protected virtual void OnClick(EventArgs e)
        {
            if (Click != null)
            {
                Click(this, e);
            }
        }

        protected virtual void OnReset(EventArgs e)
        {
            if (Reset != null)
            {
                Reset(this, e);
            }
        }

        protected virtual void OnSubmit(EventArgs e)
        {
            if (Submit != null)
            {
                Submit(this, e);
            }
        }  


        #endregion

   属性#region 属性
        private TagCollection _tags;
        [PersistenceMode(PersistenceMode.InnerProperty), DesignerSerializationVisibility(
         DesignerSerializationVisibility.Content), Category("Behavior"),Description("添加或删除标签")]
        public TagCollection Tags
        {
            get
            {
                if (_tags == null) this._tags = new TagCollection();
                return _tags;
            }
        }

        //private void LabelButtons_PreRender(Object sender, EventArgs e)
        //{
        //    this.EnsureChildControls();

        //}

     private   CssNames css = new CssNames();
        [Description("样式集合")]


        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]

        public CssNames Tags_CssClass
        {
            get { return css; }
        }

       // private int _tagsCount = 0;


        private int _current = 0;
        /**//// <summary>
        /// 选择当前标签
        /// </summary>
        [Description("编辑当前标签")]
        public int CurrentView
        {
            get { return _current; }
            set { _current = value; }
        }



        #endregion

     override CreateControls#region override CreateControls
        protected override void CreateChildControls()
        {
            //从当前服务器控件的 ControlCollection 对象中移除所有控件。 

            Controls.Clear();

            CreateControlHierarchy();
            //删除服务器控件的所有子控件的视图状态信息。 
            ClearChildViewState();


           // this.ChildControlsCreated = true;
        }

        private void CreateControlHierarchy()
        {
           
            HtmlGenericControl BigDiv = new HtmlGenericControl("div");
            BigDiv.Attributes.Add("style", String.Format("width:{0}px;height:{1}px", this.Width.Value, this.Height.Value));
            // BigDiv.ID = this.ClientID;

            HtmlGenericControl UpUl = new HtmlGenericControl("ul");
            UpUl.Attributes.Add("id", this.UniqueID + "_ul");
           // UpUl.Attributes.Add("onload", "__SetStyle(" + this.UniqueID + "_ul);");
            UpUl.Attributes.Add("style", "list-style:none; margin:0");

            HtmlGenericControl DownDiv = new HtmlGenericControl("div");
            for (int i = 0; i < this.Tags.Count; i++)
            {
                HtmlGenericControl li = new HtmlGenericControl("li");
                if (i == 0)
                {
                    if (Tags_CssClass.TagSelectedClass != "")
                        li.Attributes.Add("class", Tags_CssClass.TagSelectedClass);
                }
                else if(Tags_CssClass.TagUnSelectedClass!="") li.Attributes.Add("class", Tags_CssClass.TagUnSelectedClass);

                li.Attributes.Add("style", "float:left");
                HtmlAnchor a = new HtmlAnchor();
                a.InnerText = this.Tags[i].TagName;
                a.HRef = "javascript:void(0)";
                if (Tags_CssClass.TagContentClass != "")
                    a.Attributes.Add("class", Tags_CssClass.TagContentClass);
                a.Attributes.Add("onclick", "__selectTag('" + this.UniqueID + "_tagContent" + i.ToString() + "',this,'" + this.UniqueID + "_ul','" + this.UniqueID + "_tagContent'" + ")");
                a.Attributes.Add("onfocus", "this.blur()");
                li.Controls.Add(a);
                UpUl.Controls.Add(li);
               
               
                HtmlGenericControl div = new HtmlGenericControl("div");

                div.Attributes.Add("id", this.UniqueID + "_tagContent" + i.ToString());
                

                if (i == 0) div.Attributes.Add("style", "display:block");
                else div.Attributes.Add("style", "display:none");
                if (this.Tags[i].AddControl != null)
                {
                    ITemplate temp = this.Tags[i].AddControl;

                    this.Tags[i].AddControl.InstantiateIn(div);
                }
               
                DownDiv.Controls.Add(div);

            }
            BigDiv.Controls.Add(UpUl);
            if (Tags_CssClass.DivContent != "")
                DownDiv.Attributes.Add("class", this.Tags_CssClass.DivContent);
            BigDiv.Controls.Add(DownDiv);
            this.Controls.Add(BigDiv);

            writeJsFunction();




            //throw new Exception("The method or operation is not implemented.");
        }

        #endregion override CreateControls

        render#region render
     
        

        /**//// <summary>
        /// 添加客户端js
        /// </summary>
        private void writeJsFunction()
        {
            ClientScriptManager csm = this.Page.ClientScript;

            if (!csm.IsClientScriptBlockRegistered("tagsbutton"))
            {
                string jsStr = "function __selectTag(showContent,selfObj,id,tagContent){" +
                    // 操作标签 
        " var tag = document.getElementById(id).getElementsByTagName('li');" +
        " var taglength = tag.length; " +
    " for(i=0; i<taglength; i++){ " +
        " tag[i].className = '';}" +


    " selfObj.parentNode.className = '" + Tags_CssClass.TagSelectedClass +
                    // 操作内容
    "'; for(i=0; j=document.getElementById(tagContent+i); i++){j.style.display = 'none';}" +


" document.getElementById(showContent).style.display = 'block';  }"; 

//"function __SetStyle(id){var tag=document.getElementById(id).getElementsByTagName('li'); this.style.height=tag[0].style.height+1+'px'; }";

                // throw new Exception("The method or operation is not implemented.");
                csm.RegisterClientScriptBlock(this.GetType(), "tagsbutton", jsStr, true);
            }
        }

        
        #endregion


    }
    #endregion

    Designer#region Designer
    public class TagsControlDesigner : CompositeControlDesigner
    {
        private TagsControl myControl;
        //获取tagcontrol引用
        public override void Initialize(IComponent component)
        {
            base.Initialize(component);
            myControl = component as TagsControl;

        }
        public override bool AllowResize
        {
            get
            {
                return true;
            }
        }
        //使相关区域关联 --设置标识
        protected override void CreateChildControls()
        {
            base.CreateChildControls();
            try
            {
                HtmlGenericControl Div = myControl.Controls[0] as HtmlGenericControl;
                HtmlGenericControl Ul = Div.Controls[0] as HtmlGenericControl;
                HtmlGenericControl DownDiv = Div.Controls[1] as HtmlGenericControl;
                double TagHeight = 20;
          //      double TagWidth = ;
                double DivHeight =(myControl.Tags.Count>0)? (myControl.Height.Value-TagHeight):myControl.Height.Value;
                double DivWidth = myControl.Width.Value;
                for (int i = 0; i < Ul.Controls.Count; i++)
                {
                    HtmlGenericControl li = Ul.Controls[i] as HtmlGenericControl;
                    if (myControl.Tags_CssClass.TagUnSelectedClass == "")
                        li.Attributes.Add("style", String.Format("float:left;width:auto;height:{0}px", TagHeight));
                    li.Attributes[DesignerRegion.DesignerRegionAttributeName] = i.ToString();
                }
                if (myControl.Tags_CssClass.DivContent == "")
                    DownDiv.Attributes.Add("style", String.Format("width:{0}px;height:{1}px", DivWidth, DivHeight));
                DownDiv.Attributes[DesignerRegion.DesignerRegionAttributeName] = myControl.Tags.Count.ToString();
            }
            catch { }
           
        }
        //DesignerRegion区域点击事件 定义当前标签
        protected override void OnClick(DesignerRegionMouseEventArgs e)
        {
            if (e.Region == null) return;
            int t = e.Region.Name.IndexOf("tag");
            if (t!= 0) return;
            if (e.Region.Name.Substring(3) != myControl.CurrentView.ToString())
            {
                myControl.CurrentView = int.Parse(e.Region.Name.Substring(3, 1));
             
               base.UpdateDesignTimeHtml();
               
            }

        }
        //添加区域region
        public override string GetDesignTimeHtml(DesignerRegionCollection regions)
        {
                
            
                for (int i = 0; i < myControl.Tags.Count; i++)
                    regions.Add(new DesignerRegion(this, "tag" + i.ToString()));
           
                regions.Add(new EditableDesignerRegion(this, "content" + myControl.CurrentView, false));
                regions[myControl.CurrentView].Highlight = true;
            
               
          return base.GetDesignTimeHtml();
            
        }
        //设置编辑模板内容
        public override void SetEditableDesignerRegionContent(EditableDesignerRegion region, string content)
        {  
            if (content == null) return;
            IDesignerHost dispose = (IDesignerHost)Component.Site.GetService(typeof(IDesignerHost));
            if (dispose != null)
            {
                ITemplate temp = ControlParser.ParseTemplate(dispose, content);
                if (temp != null) { myControl.Tags[int.Parse(region.Name.Substring(7))].AddControl = temp; }

            }

            //     base.SetEditableDesignerRegionContent(region, content);
        }
        //获取内容
        public override string GetEditableDesignerRegionContent(EditableDesignerRegion region)
        {
            IDesignerHost dispose = (IDesignerHost)Component.Site.GetService(typeof(IDesignerHost));
            if (dispose != null)
            {
                if (myControl.Tags.Count > 0)
                {
                    ITemplate temp = myControl.Tags[int.Parse(region.Name.Substring(7))].AddControl;
                    if (temp != null)
                        return ControlPersister.PersistTemplate(temp, dispose);
                }

            }
            return string.Empty;
            // return base.GetEditableDesignerRegionContent(region);
        }


    }
    #endregion Designer

}