moss 2007 添加关键字及最佳匹配

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using Microsoft.SharePoint;
using Microsoft.Office.Server.Search.Administration;

namespace MossKeywords
{
    public partial class frmMossKeywords : Form
    {
        public frmMossKeywords()
        {
            InitializeComponent();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            string siteUrl = this.txtSiteUrl.Text.Trim();
            string keywords = this.txtKeywords.Text.Trim();
            string synonyms = this.txtSynonyms.Text.Trim();
            string bestBetTitle = this.txtBestBetTitle.Text.Trim();
            string bestBetUrl = this.txtBestBetUrl.Text.Trim();


            if (string.IsNullOrEmpty(siteUrl) && string.IsNullOrEmpty(keywords) && string.IsNullOrEmpty(bestBetTitle) && string.IsNullOrEmpty(bestBetUrl))
            {
                MessageBox.Show("信息不完整！", "提示");
            }
            else
            {
                using (SPSite site = new SPSite(siteUrl))
                {
                    SPWeb rootweb = site.OpenWeb();
                    Keywords Keywords = new Keywords(SearchContext.GetContext(site), new Uri(rootweb.Url));
                    KeywordCollection keyCol = Keywords.AllKeywords;

                    if (!KeywordIsExist(keyCol, keywords))
                    {
                        //添加关键字     
                        Keyword newKeyword = Keywords.AllKeywords.Create(keywords, DateTime.Now.AddDays(-1));

                        //添加同义词 注意：同义词与关键词不能重复
                        if (!SynonymsIsExist(newKeyword.Synonyms,synonyms))
                        {
                            newKeyword.Synonyms.Create(synonyms);
                        }

                        //创建最佳匹配项，可以创建多个
                        BestBet bestBet = newKeyword.BestBets.Create(bestBetTitle, bestBetTitle, new Uri(bestBetUrl));
                        newKeyword.Update();
                        MessageBox.Show("添加成功！", "提示");
                    }
                    else
                    {
                        foreach (Keyword kwd in keyCol)
                        {
                            if (kwd.Term.Equals(keywords))
                            {
                                //添加同义词 注意：同义词与关键词不能重复
                                if (!SynonymsIsExist(kwd.Synonyms,synonyms) && !KeywordIsExist(keyCol, synonyms))
                                {
                                    kwd.Synonyms.Create(synonyms);
                                }

                                //创建最佳匹配项，可以创建多个
                                BestBet bestBet = kwd.BestBets.Create(bestBetTitle, bestBetTitle, new Uri(bestBetUrl));
                                kwd.Update();
                                MessageBox.Show("添加成功！", "提示");
                            }
                        }
                    }


                }

            }
        }

        /// <summary>
        /// 判断关键字是否存在
        /// </summary>
        /// <param name="keyCol"></param>
        /// <param name="keyword"></param>
        /// <returns></returns>
        private bool KeywordIsExist(KeywordCollection keyCol, string keyword)
        {
            foreach (Keyword kwd in keyCol)
            {
                if (kwd.Term.Equals(keyword))
                    return true;
            }

            return false;
        }

        /// <summary>
        /// 同义词是否存在
        /// </summary>
        /// <param name="synCol"></param>
        /// <param name="synonym"></param>
        /// <returns></returns>
        private bool SynonymsIsExist(SynonymCollection synCol, string synonym)
        {
            foreach (Synonym syn in synCol)
            {
                if (syn.Term.Equals(synonym))
                    return true;
            }

            return false;
        }
    }
}