两个listbox之间转移数据

来源：互联网发布：体育赛事直播网络电视编辑：程序博客网时间：2024/06/16 02:08

NorthwindEntities db = new NorthwindEntities();
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                InitListBox();
            }
        }

        //绑定数据
        public void InitListBox()
        {
            ListAssignedBind();
            ListAssignBind();
        }

        #region 角色转移
        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            List<ListItem> itemList = new List<ListItem>();
            //已分配box中的项
            for (int i = 0; i < lboxAssigned.Items.Count; i++)
            {
                if (this.lboxAssigned.Items[i].Selected)
                {
                    itemList.Add(this.lboxAssigned.Items[i]);
                    this.lboxAssign.Items.Insert(0, this.lboxAssigned.Items[i]);
                }

            }
            if (itemList.Count > 0)
            {
                foreach (ListItem tmp in itemList)
                {
                    this.lboxAssigned.Items.Remove(tmp);
                }
            }
        }

        protected void LinkButton2_Click(object sender, EventArgs e)
        {
            this.lboxAssigned.Items.Clear();

ListAssignBind();
}

        protected void LinkButton4_Click(object sender, EventArgs e)
        {
            List<ListItem> itemList = new List<ListItem>();
            //已分配box中的项
            for (int i = 0; i < lboxAssign.Items.Count; i++)
            {
                if (this.lboxAssign.Items[i].Selected)
                {
                    itemList.Add(this.lboxAssign.Items[i]);
                    this.lboxAssigned.Items.Insert(0, this.lboxAssign.Items[i]);
                }

            }
            if (itemList.Count > 0)
            {
                foreach (ListItem tmp in itemList)
                {
                    this.lboxAssign.Items.Remove(tmp);
                }
            }
        }

        protected void LinkButton3_Click(object sender, EventArgs e)
        {
            this.lboxAssign.Items.Clear();
            ListAssignedBind();
        }

        //给已分配ListBox绑定数据
        public void ListAssignedBind()
        {
            this.lboxAssigned.DataSource = db.Employees.ToList();
            this.lboxAssigned.DataTextField = "LastName";
            this.lboxAssigned.DataValueField = "EmployeeID";
            this.lboxAssigned.DataBind();
        }

        public void ListAssignBind()
        {
            this.lboxAssign.DataSource = db.Employees.ToList();
            this.lboxAssign.DataTextField = "LastName";
            this.lboxAssign.DataValueField = "EmployeeID";
            this.lboxAssign.DataBind();
        }
        #endregion

        protected void btnOK_Click(object sender, EventArgs e)
        {
            List<string> strList = new List<string>();
            for (int i = 0; i < lboxAssigned.Items.Count; i++)
            {
                strList.Add(lboxAssigned.Items[i].Value);
            }
        }