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  • .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);
            }
    
        }


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  • 原文地址:https://www.cnblogs.com/keanuyaoo/p/3299264.html
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