如何自己写一个用户控件包装器来代替QuickPart! cloud

如何自己写一个用户控件包装器来代替QuickPart!

具体步骤如下：

1.打开VS2008,新建一个Web Part类型的项目工程，命名为SuperWebPart

注：Windows SharePoint Services 3.0 工具：Visual Studio 2008 Extensions 1.2 版，下载地址如下：

http://www.microsoft.com/downloads/details.aspx?familyid=7BF65B28-06E2-4E87-9BAD-086E32185E68&displaylang=zh-cn  (中文版)

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7bf65b28-06e2-4e87-9bad-086e32185e68    (英文版)

新建工程如下图：

2.点击OK后，在项目中新建一个名称为 TreeWebPart.cs 类库文件和一个类型为Web Part的文件(命名为SuperWebPart)，如下图：

 

3.在TreeWebPart.cs类库文件中编写代码，此类继承System.Web.UI.WebControls.WebParts.EditorPart这个编辑部件，目的用于编辑System.Web.UI.WebControls.WebParts.WebPart控件，并且需要重写ApplyChanges,SyncChanges,CreateChildControls等方法，

完整代码如下：

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.SharePoint;
using System.IO;
using System.Configuration;

namespace SuperWebPart
{
    class TreeWebPart:EditorPart
    {
        private DropDownList ddlTree = new DropDownList();

        public override bool ApplyChanges()
        {
            SuperWebPart part = (SuperWebPart)WebPartToEdit;
            part.Url = this.ddlTree.SelectedItem.Value;
            return true;
        }

        public override void SyncChanges()
        {

        }

        protected override void CreateChildControls()
        {
            base.CreateChildControls();

            //从wpresources目录下找出所有的文件
            string[] a = System.IO.Directory.GetFiles(HttpContext.Current.Server.MapPath("../wpresources"));
            FileInfo info;
            for (int i = 0; i < a.Length; i++)
            {
                info = new FileInfo(a[i]);
                ddlTree.Items.Add(info.Name);
            }

            Controls.Add(ddlTree);
        }

        protected override void RenderChildren(System.Web.UI.HtmlTextWriter writer)
        {
            base.RenderChildren(writer);
        }

        public override void RenderControl(System.Web.UI.HtmlTextWriter writer)
        {
            base.RenderControl(writer);
        }
    }
}

4.SuperWebPart.cs类库文件的完整代码如下，此类需要从WebParts和IWebEditable接口继承：

using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using System.Collections;
using System.ComponentModel;

using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;

namespace SuperWebPart
{
    [Guid("d833c329-1066-4c59-a73b-38341ae07797")]
    public class SuperWebPart : System.Web.UI.WebControls.WebParts.WebPart,IWebEditable
    {
        public SuperWebPart()
        {
        }

        private UserControl usercontrol;

        protected override void CreateChildControls()
        {
            base.CreateChildControls();
            Controls.Clear();

            if (this.Url != string.Empty)
            {
                usercontrol = (UserControl)Page.LoadControl(@"/wpresources/" + this.Url);
                Controls.Add(usercontrol);
            }
        }

        protected override void Render(HtmlTextWriter writer)
        {
            EnsureChildControls();
            if (usercontrol != null)
            {
                usercontrol.RenderControl(writer);
            }
        }

        private string _url = string.Empty;

        [Personalizable]
        [WebBrowsable]
        [WebDisplayName("请手工输入一个控件文件")]
        [WebDescription("只需要文件名就行了")]
        [Category("个性设置")]
        public string Url
        {
            get { return _url; }
            set { _url = value; }
        }

        //把TreeWebPart部件加入到俄EditorParts中
        public EditorPartCollection CreateEditorParts()
        {
            TreeWebPart obj = new TreeWebPart();
            obj.ID = this.ID + "_selectTreeWebpart";
            obj.Title = "选择用户控件by zhangyun";
            ArrayList EditorParts = new ArrayList();
            EditorParts.Add(obj);
            return new EditorPartCollection(EditorParts);
        }
    }
}

5.编译成功后，

(1).把生成的SuperWebPart.dll放到SharePoint网站对应的bin目录下 C:\Inetpub\wwwroot\wss\VirtualDirectories\8080\bin

，在对应的SharePoint网站的webconfig文件中的<SafeControl></SafeControl>代码中添加如下代码：

<SafeControl Assembly="SuperWebPart, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9f4da00116c38ec5"

Namespace="SuperWebPart" TypeName="*" Safe="True" />，并修改 <trust level="Full" originUrl="" />

(2).把写好用户控件(?.ascx)文件放到SharePoint网站对应的wpresources目录下 C:\Inetpub\wwwroot\wss\VirtualDirectories\8080\wpresources

这样,SuperWebPart用户控件包装器就开发完成了，效果和QuickPart一样，最后的效果如下：