支持拼音检索的TextBox扩展控件-使用

2 ：代码中；
一般的：
// 一般的CODE为;
            spellSearchBoxEx1.SpellSearchSource  =   new   string [] {  " 中国 " ,  " 中国fgdfs " ,  " 中阿收费的肌肤 " ,  " 男生 " ,  " 女生 "  };

3 ：数据库情况下，本实例用的是随机生成中文模拟数据库情况；
public   partial   class  Form1 : Form
    {
         public  Form1()
        {
            InitializeComponent();
        }

         private   void  Form1_Load( object  sender, EventArgs e)
        {
           
             // 一般的CODE为;
            spellSearchBoxEx1.SpellSearchSource  =   new   string [] {  " 中国 " ,  " 中国fgdfs " ,  " 中阿收费的肌肤 " ,  " 男生 " ,  " 女生 "  };

             //  连接数据库情况下仅此；
            spellSearchBoxExBySql.SpellSearchSource  =  GetSpellBoxSource(GetDataTable());
        }

         public   string [] GetSpellBoxSource(DataTable dt)
        {
            List < string >  list  =   new  List < string > ();
             foreach  (DataRow dr  in  dt.Rows)
            {
                 if  ( ! Convert.IsDBNull(dr[ " Text " ]))
                    list.Add(dr[ " Text " ].ToString());
            }
             return  list.ToArray();
        }
         public  DataTable GetDataTable()
        {
             // 这里是自己的代码连接数据库仅得到要填的列；
             // 本方法没连数据库，用随机生成中文模拟获得DatatTable
             //  DataTable dt = DB.GetDatatable("sql");
            DataTable dt  =   new  DataTable();
            dt.Columns.Add( new  DataColumn( " Text " ,  typeof ( string )));
            Random rn  =   new  Random();
             for  ( int  i  =   0 ; i  <   50 ; i ++ )
            {
                 string  str  = " 中 "   + GetRandomChinese(rn.Next( 8 ));
                DataRow dr  =  dt.NewRow();
                dr[ " Text " ]  =  str;
                dt.Rows.Add(dr);
            }
             return  dt;
        }

         #region  以下只是随机生成中文，与本控件使用无关；
         public   string  GetRandomChinese( int  strlength)
        {
            Encoding gb  =  Encoding.GetEncoding( " gb2312 " );

             object [] bytes  =   this .CreateRegionCode(strlength);

            StringBuilder sb  =   new  StringBuilder();

             for  ( int  i  =   0 ; i  <  strlength; i ++ )
            {
                 string  temp  =  gb.GetString(( byte [])Convert.ChangeType(bytes[i],  typeof ( byte [])));
                sb.Append(temp);
            }

             return  sb.ToString();
        }
         private   object [] CreateRegionCode( int  strlength)
        {
             // 定义一个字符串数组储存汉字编码的组成元素 
             string [] rBase  =   new  String[ 16 ] {  " 0 " ,  " 1 " ,  " 2 " ,  " 3 " ,  " 4 " ,  " 5 " ,  " 6 " ,  " 7 " ,  " 8 " ,  " 9 " ,  " a " ,  " b " ,  " c " ,  " d " ,  " e " ,  " f "  };

            Random rnd  =   new  Random();
             object [] bytes  =   new   object [strlength];
             for  ( int  i  =   0 ; i  <  strlength; i ++ )
            {
                 int  r1  =  rnd.Next( 11 ,  14 );
                 string  str_r1  =  rBase[r1].Trim();
                rnd  =   new  Random(r1  *   unchecked (( int )DateTime.Now.Ticks)  +  i);
                 int  r2;
                 if  (r1  ==   13 )
                {
                    r2  =  rnd.Next( 0 ,  7 );
                }
                 else
                {
                    r2  =  rnd.Next( 0 ,  16 );
                }
                 string  str_r2  =  rBase[r2].Trim();
                rnd  =   new  Random(r2  *   unchecked (( int )DateTime.Now.Ticks)  +  i);
                 int  r3  =  rnd.Next( 10 ,  16 );
                 string  str_r3  =  rBase[r3].Trim();
                rnd  =   new  Random(r3  *   unchecked (( int )DateTime.Now.Ticks)  +  i);
                 int  r4;
                 if  (r3  ==   10 )
                {
                    r4  =  rnd.Next( 1 ,  16 );
                }
                 else   if  (r3  ==   15 )
                {
                    r4  =  rnd.Next( 0 ,  15 );
                }
                 else
                {
                    r4  =  rnd.Next( 0 ,  16 );
                }
                 string  str_r4  =  rBase[r4].Trim();
                 byte  byte1  =  Convert.ToByte(str_r1  +  str_r2,  16 );
                 byte  byte2  =  Convert.ToByte(str_r3  +  str_r4,  16 );
                 byte [] str_r  =   new   byte [] { byte1, byte2 };
                bytes.SetValue(str_r, i);
            }

             return  bytes;
        }
         #endregion

}

实例代码和Dll文件下载