对listBox控件 数据项进行操作 批量加入到另一个listBox列表框中

#region  对LISTBOX控件操作

       /// <summary>
       /// 新增数据
       /// </summary>
       /// <param name="Src"></param>
       /// <param name="E"></param>
       protectedvoid AddBtn_Click(Object Src, EventArgs E)
       {
           if (lbPrograms.SelectedIndex != -1)
           {
               int iItemCount = lbPrograms.Items.Count;
               string sItemStr = string.Empty;
               for (int i = 0; i < iItemCount; i++)
               {
                   if (lbPrograms.Items[i].Selected == true)
                   {
                       lbSelectedPrograms.Items.Add(new ListItem(lbPrograms.Items[i].Text, lbPrograms.Items[i].Value));
                       sItemStr += lbPrograms.Items[i].Value + "|";
                   }
               }
               sItemStr = sItemStr.Substring(0, sItemStr.Length - 1);

               string[] sItemList = sItemStr.Split('|');

               for (int i = 0; i < sItemList.Length; i++)
               {
                   lbPrograms.Items.Remove(sItemList[i]);
               }

           }
       }
       /// <summary>
       /// 新增所有数据
       /// </summary>
       /// <param name="Src"></param>
       /// <param name="E"></param>
       protectedvoid AddAllBtn_Click(Object Src, EventArgs E)
       {
           while (lbPrograms.Items.Count != 0)
           {
               lbSelectedPrograms.Items.Add(new ListItem(lbPrograms.Items[0].Text, lbPrograms.Items[0].Value));
               lbPrograms.Items.Remove(lbPrograms.Items[0]);
           }
       }
       /// <summary>
       /// 删除数据
       /// </summary>
       /// <param name="Src"></param>
       /// <param name="E"></param>
       protectedvoid RemoveBtn_Click(Object Src, EventArgs E)
       {
           if (lbSelectedPrograms.SelectedIndex != -1)
           {
               int iItemCount = lbSelectedPrograms.Items.Count;
               string sItemStr = string.Empty;
               for (int i = 0; i < iItemCount; i++)
               {
                   if (lbSelectedPrograms.Items[i].Selected == true)
                   {
                       lbPrograms.Items.Add(new ListItem(lbSelectedPrograms.Items[i].Text, lbSelectedPrograms.Items[i].Value));
                       sItemStr += lbSelectedPrograms.Items[i].Value + "|";
                   }
               }
               sItemStr = sItemStr.Substring(0, sItemStr.Length - 1);

               string[] sItemList = sItemStr.Split('|');

               for (int i = 0; i < sItemList.Length; i++)
               {
                   lbSelectedPrograms.Items.Remove(sItemList[i]);
               }

           }
       }
       /// <summary>
       /// 删除所有数据
       /// </summary>
       /// <param name="Src"></param>
       /// <param name="E"></param>
       protectedvoid RemoveAllBtn_Click(Object Src, EventArgs E)
       {
           while (lbSelectedPrograms.Items.Count != 0)
           {
               lbPrograms.Items.Add(new ListItem(lbSelectedPrograms.Items[0].Text, lbSelectedPrograms.Items[0].Value));
               lbSelectedPrograms.Items.Remove(lbSelectedPrograms.Items[0]);
           }
       }
       #endregion

 #region  对LISTBOX控件操作

        /// <summary>
        /// 新增数据
        /// </summary>
        /// <param name="Src"></param>
        /// <param name="E"></param>
        protected void AddBtn_Click(Object Src, EventArgs E)
        {
            if (lbPrograms.SelectedIndex != -1)
            {
                int iItemCount = lbPrograms.Items.Count;
                string sItemStr = string.Empty;
                for (int i = 0; i < iItemCount; i++)
                {
                    if (lbPrograms.Items[i].Selected == true)
                    {
                        lbSelectedPrograms.Items.Add(new ListItem(lbPrograms.Items[i].Text, lbPrograms.Items[i].Value));                      
                        sItemStr += lbPrograms.Items[i].Value + "|";
                    }
                }
                sItemStr = sItemStr.Substring(0, sItemStr.Length - 1);

                string[] sItemList = sItemStr.Split('|');
                
                for (int i = 0; i < sItemList.Length; i++)
                {
                    lbPrograms.Items.Remove(sItemList[i]);
                }
                
            }
        }
        /// <summary>
        /// 新增所有数据
        /// </summary>
        /// <param name="Src"></param>
        /// <param name="E"></param>
        protected void AddAllBtn_Click(Object Src, EventArgs E)
        {
            while (lbPrograms.Items.Count != 0)
            {
                lbSelectedPrograms.Items.Add(new ListItem(lbPrograms.Items[0].Text, lbPrograms.Items[0].Value));
                lbPrograms.Items.Remove(lbPrograms.Items[0]);
            }
        }
        /// <summary>
        /// 删除数据
        /// </summary>
        /// <param name="Src"></param>
        /// <param name="E"></param>
        protected void RemoveBtn_Click(Object Src, EventArgs E)
        {
            if (lbSelectedPrograms.SelectedIndex != -1)
            {
                int iItemCount = lbSelectedPrograms.Items.Count;
                string sItemStr = string.Empty;
                for (int i = 0; i < iItemCount; i++)
                {
                    if (lbSelectedPrograms.Items[i].Selected == true)
                    {
                        lbPrograms.Items.Add(new ListItem(lbSelectedPrograms.Items[i].Text, lbSelectedPrograms.Items[i].Value));
                        sItemStr += lbSelectedPrograms.Items[i].Value + "|";
                    }
                }
                sItemStr = sItemStr.Substring(0, sItemStr.Length - 1);

                string[] sItemList = sItemStr.Split('|');

                for (int i = 0; i < sItemList.Length; i++)
                {
                    lbSelectedPrograms.Items.Remove(sItemList[i]);
                }

            }
        }
        /// <summary>
        /// 删除所有数据
        /// </summary>
        /// <param name="Src"></param>
        /// <param name="E"></param>
        protected void RemoveAllBtn_Click(Object Src, EventArgs E)
        {
            while (lbSelectedPrograms.Items.Count != 0)
            {                
                lbPrograms.Items.Add(new ListItem(lbSelectedPrograms.Items[0].Text, lbSelectedPrograms.Items[0].Value));
                lbSelectedPrograms.Items.Remove(lbSelectedPrograms.Items[0]);
            }
        }
        #endregion

lbPrograms:待选项目列表

lbSelectedPrograms：已选项目列表

说明：可以实现一次性将所有列表框项目移到另一个列表框中。可以将列表任意选中项目移动到另一个列表框中。

经本人测试通过，方法可以实现