.NET支持上下左右挪动操作

.NET支持上下左右移动操作

效果如下图：

代码如下：

   public partial class ShowSet : System.Web.UI.Page    {        Hashtable resources = EquStatusSearch.resources;        private string names = null;        IniOperation ini = new IniOperation("i18n");        protected void Page_Load(object sender, EventArgs e)        {            if (!Page.IsPostBack)            {                names = QuarrysClass.All;                initi18n();                string[] all =string.IsNullOrEmpty(names)?null: names.Split(',');//分割出所有列                hidfShows.Value =ini.IniValue("Set", "Show");                string include = hidfShows.Value;//获取当前页展示列                if (string.IsNullOrEmpty(names)||all == null)                {                    //请先点加载配置信息                    return;                }                for (int i = 0; i < all.Length; i++)//遍历所有列                {                    if (include.IndexOf("@" + all[i] + "@") == -1)//当前列中不包含分割出来的列时放在不显示框中                    {                         xListBox1.Items.Add(new ListItem(resources[all[i]].ToString(),all[i]));                    }                }                string[] showNames = include.Split(',');                string newName=string.Empty;                foreach (string name in showNames)                {                    newName = name.Trim('@');                    string colName = resources[newName] == null ? string.Empty : resources[newName].ToString();                    if (!string.IsNullOrEmpty(newName))                    {                        xListBox2.Items.Add(new ListItem(colName, newName));                    }                }            }        }        //调用显示和展示字段名称        private void initi18n()        {            this.Page.Title =string.IsNullOrEmpty(resources["ShowSetName"].ToString())? "字段显示设置" : resources["ShowSetName"].ToString();            xLabel1.Text =string.IsNullOrEmpty(resources["ShowSetNoShow"].ToString())?"不显示字段":resources["ShowSetNoShow"].ToString();            xLabel2.Text = string.IsNullOrEmpty(resources["ShowSetShow"].ToString())?"显示字段":resources["ShowSetShow"].ToString();        }        //将未显示字段右移到显示字段框，并清除掉不显示的选择到的项        protected void xButton1_Click(object sender, EventArgs e)        {            if (xListBox1.SelectedItem == null)            {                return;            }            xListBox2.Items.Add(xListBox1.SelectedItem);            xListBox1.Items.Remove(xListBox1.SelectedItem);        }        //将显示字段左移到未显示字段框，并清除掉显示的选择到的项        protected void xButton2_Click(object sender, EventArgs e)        {            if (xListBox2.SelectedItem == null)            {                return;            }            xListBox1.Items.Add(xListBox2.SelectedItem);            xListBox2.Items.Remove(xListBox2.SelectedItem);        }        //将左边所有不显示项加到右边的显示项中        protected void xButton3_Click(object sender, EventArgs e)        {            foreach (ListItem item in xListBox1.Items)            {                xListBox2.Items.Add(item);            }            xListBox1.Items.Clear();        }        //将右边所有不显示项加到左边的显示项中        protected void xButton4_Click(object sender, EventArgs e)        {            foreach (ListItem item in xListBox2.Items)            {                xListBox1.Items.Add(item);            }            xListBox2.Items.Clear();        }                //点击设置按钮事件，        protected void btnSet_Click(object sender, EventArgs e)        {            try            {                string str = "";                for (int i = 0; i < xListBox2.Items.Count; i++)//循环添加显示项组成字符串                {                    str += "@" + xListBox2.Items[i].Value + "@,";                }                if ("".Equals(str))//如果显示项为空直接清除显示页面的所有字段                {                    QuarrysClass.Shows = "";                }                else                {                    //重新复制显示字段到显示页面                    QuarrysClass.Shows = str.Substring(0, str.Length - 1);                }                //调用主页面将显示字段写入到i18n文件中                ini.IniWriteValue("Set", "Show", QuarrysClass.Shows);                Page.ClientScript.RegisterStartupScript(this.GetType(), "warn", "alert('设置成功！');window.opener.searchData();window.close();", true);            }            catch (Exception ex)            {                string strScript = string.Format("alert('设置失败！{0}');", ex.Message);                Page.ClientScript.RegisterStartupScript(this.GetType(), "warn", strScript, true);            }        }        //上移        protected void btnUp_Click(object sender, EventArgs e)        {            UpMove(xListBox2);        }        //下移        protected void btnDown_Click(object sender, EventArgs e)        {            DownMove(xListBox2);        }        void UpMove(ListBox ListBox2)        {            //若不是第一行则上移            if (ListBox2.SelectedIndex > 0)            {                string name = ListBox2.SelectedItem.Text;                string ID = ListBox2.SelectedItem.Value;                int index = ListBox2.SelectedIndex;                ListBox2.SelectedItem.Text = ListBox2.Items[index - 1].Text;                ListBox2.SelectedItem.Value = ListBox2.Items[index - 1].Value;                ListBox2.Items[index - 1].Text = name;                ListBox2.Items[index - 1].Value = ID;                ListBox2.SelectedIndex--;            }        }        void DownMove(ListBox lbox)        {            if (lbox.SelectedIndex < lbox.Items.Count - 1)            {                string name = lbox.SelectedItem.Text;                string ID = lbox.SelectedItem.Value;                int index = lbox.SelectedIndex;                lbox.SelectedItem.Text = lbox.Items[index + 1].Text;                lbox.SelectedItem.Value = lbox.Items[index + 1].Value;                lbox.Items[index + 1].Text = name;                lbox.Items[index + 1].Value = ID;                lbox.SelectedIndex++;            }        }        void TopMove(ListBox lbox)        {            int index = 0;            ListItem item = lbox.SelectedItem;            lbox.Items.Remove(item);            lbox.Items.Insert(index, item);        }        void BottomMove(ListBox lbox)        {            int index = lbox.Items.Count - 1;            ListItem item = lbox.SelectedItem;            lbox.Items.Remove(item);            lbox.Items.Insert(index, item);        }        protected void btnTop_Click(object sender, EventArgs e)        {            TopMove(xListBox2);        }        protected void btnBottom_Click(object sender, EventArgs e)        {            BottomMove(xListBox2);        }    }