如何将值从一个列表框传递到另一个列表框

问题描述

如何在winform中将值从一个列表框传递到另一个列表框



我尝试过：

How to pass values from one listbox to another listbox in winform

What I have tried:

private void btnMovetoList_Click(object sender, EventArgs e)
        {
            listBox2.SelectionMode = SelectionMode.MultiSimple;
            try
            {
                if (listBox1.Items.Count > 0)
                {
                    DataRowView drv = null;
                    for (int i = 0; i < listBox1.SelectedItems.Count; i++)
                    {
                        drv = (DataRowView)listBox1.SelectedItems[i];

                        string valueOfItem = drv["Form_Name"].ToString();
                        //string  Item = drv["Form_No"].ToString();
                        listBox2.Items.Add(valueOfItem);
                        //listBox1.Items.Remove(Item);
                    }

                    
                    DataRowView rowView = listBox1.SelectedValue as DataRowView;

                    if (null == rowView)
                     {
                         return;
                     }

                    dt.Rows.Remove(rowView.Row);
                    dt.AcceptChanges();


                }

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

            chkSelectAll1.Checked = false;
        }


        private void btnMoveReturn_Click(object sender, EventArgs e)
        {
            try
            {
                for (int i = 0; i < listBox2.SelectedItems.Count; i++)
                {
                    String valueOfItem = listBox2.SelectedItems[i].ToString();
                    dt.Rows.Add(valueOfItem);
                    listBox2.SelectionMode = SelectionMode.MultiSimple;
                }
                for (int i = listBox2.SelectedIndices.Count - 1; i >= 0; i--)
                {
                    listBox2.Items.RemoveAt(listBox2.SelectedIndices[i]);
                }
                chkSelectAll2.Checked = false;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

推荐答案

private void btnMovetoList_Click(object sender, EventArgs e)
        {
            listBox2.SelectionMode = SelectionMode.MultiSimple;
            try
            {
                List<object> _Objimp = new List<object>();
                List<object> _ObjExp = new List<object>();

                object _ObjimpList = new object();
                object _ObjExpList = new object();
                object _ObjStayItem = new object();

                if (listBox2.Items.Count > 0)
                {
                    for (int _listtwo = 0; _listtwo < listBox2.Items.Count; _listtwo++)
                    {
                        _ObjStayItem = new object();
                        _ObjStayItem = listBox2.GetItemText(listBox2.Items[_listtwo]);
                        _Objimp.Add(_ObjStayItem);
                    }
                }

                for (int _listtwoSelected = 0; _listtwoSelected < listBox1.SelectedItems.Count; _listtwoSelected++)
                {
                    _ObjimpList = new object();
                    _ObjimpList = listBox1.GetItemText(listBox1.SelectedItems[_listtwoSelected]);
                    _Objimp.Add(_ObjimpList);
                }

                for (int _listboxone = 0; _listboxone < listBox1.Items.Count; _listboxone++)
                {
                    _ObjExpList = new object();
                    if (!listBox1.GetSelected(_listboxone))
                    {
                        _ObjExpList = listBox1.GetItemText(listBox1.Items[_listboxone]);
                        _ObjExp.Add(_ObjExpList);
                    }
                }
                listBox1.DataSource = null;
                listBox1.Items.Clear();

                listBox2.DataSource = null;
                listBox2.Items.Clear();

                listBox1.DataSource = _ObjExp.OrderBy(r => r).ToList();
                listBox2.DataSource = _Objimp.OrderBy(p => p).ToList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            chkSelectAll1.Checked = false;
        }
        private void btnMoveReturn_Click(object sender, EventArgs e)
        {
            try
            {
                List<object> _Objimp = new List<object>();
                List<object> _ObjExp = new List<object>();

                object _ObjimpList = new object();
                object _ObjExpList = new object();
                object _ObjStayItem = new object();

                if (listBox1.Items.Count > 0)
                {
                    for (int _listtwo = 0; _listtwo < listBox1.Items.Count; _listtwo++)
                    {
                        _ObjStayItem = new object();
                        _ObjStayItem = listBox1.GetItemText(listBox1.Items[_listtwo]);
                        _Objimp.Add(_ObjStayItem);
                    }
                }

                for (int _listtwoSelected = 0; _listtwoSelected < listBox2.SelectedItems.Count; _listtwoSelected++)
                {
                    _ObjimpList = new object();
                    _ObjimpList = listBox2.GetItemText(listBox2.SelectedItems[_listtwoSelected]);
                    _Objimp.Add(_ObjimpList);
                }

                for (int _listboxone = 0; _listboxone < listBox2.Items.Count; _listboxone++)
                {
                    _ObjExpList = new object();
                    if (!listBox2.GetSelected(_listboxone))
                    {
                        _ObjExpList = listBox2.GetItemText(listBox2.Items[_listboxone]);
                        _ObjExp.Add(_ObjExpList);
                    }
                }

                listBox1.DataSource = null;
                listBox1.Items.Clear();

                listBox2.DataSource = null;
                listBox2.Items.Clear();

                listBox2.DataSource = _ObjExp.OrderBy(r => r).ToList();
                listBox1.DataSource = _Objimp.OrderBy(p => p).ToList();

                chkSelectAll2.Checked = false;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

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