Question

我特意将项目添加到另一个表单的listview中它是form1中的方法（列表视图中的一个）

＆＃13;

private void AfterAdd_DoWork(object sender, DoWorkEventArgs e)
        {
            int[] sizes = SellBL.Product.GetProdStockByID(prodid);

            ListViewItem Item = new ListViewItem(prodid.ToString());
            Item.SubItems.Add(prodname);
            Item.SubItems.Add(ebayid);
            Item.SubItems.Add("$" + sellprice);

            if (!isnosize)
            {
                for (int i = 0; i < sizes.Length; ++i)
                {
                    if (sizes[i] == 1)
                    {
                        Item.UseItemStyleForSubItems = false;
                        var subItem = Item.SubItems.Add("In Stock");
                        subItem.ForeColor = Color.Green;
                    }
                    else if (sizes[i] == 0)
                    {
                        Item.UseItemStyleForSubItems = false;
                        var subItem = Item.SubItems.Add("Out Of Stock");
                        subItem.ForeColor = Color.Red;
                    }
                    else if (sizes[i] == 2)
                    {
                        Item.UseItemStyleForSubItems = false;
                        var subItem = Item.SubItems.Add("Less Than 3");
                        subItem.ForeColor = Color.Orange;
                    }
                    else if (sizes[i] == 5)
                    {
                        Item.UseItemStyleForSubItems = false;
                        var subItem = Item.SubItems.Add("Less Than 5");
                        subItem.ForeColor = Color.Orange;
                    }
                    else if (sizes[i] == 10)
                    {
                        Item.UseItemStyleForSubItems = false;
                        var subItem = Item.SubItems.Add("Less Than 10");
                        subItem.ForeColor = Color.Orange;
                    }
                }
            }
            else
            {
                if (sizes[0] == 1)
                {
                    Item.UseItemStyleForSubItems = false;
                    var subItem = Item.SubItems.Add("In Stock");
                    subItem.ForeColor = Color.Green;
                }
                else if (sizes[0] == 0)
                {
                    Item.UseItemStyleForSubItems = false;
                    var subItem = Item.SubItems.Add("Out Of Stock");
                    subItem.ForeColor = Color.Red;
                }
                else if (sizes[0] == 10)
                {
                    Item.UseItemStyleForSubItems = false;
                    var subItem = Item.SubItems.Add("Few Left");
                    subItem.ForeColor = Color.Orange;
                }
            }
            ProductListView.Invoke(new MethodInvoker(delegate () { ProductListView.Items.AddRange(new ListViewItem[] { Item }); }));
        }

＆＃13;

并且它是form2（从那里我不会添加产品）

＆＃13;

        private void backgroundWorkerAddProd_DoWork(object sender, DoWorkEventArgs e)
        {
            string a = Addprodnametxt.Text.ToString();
            string b = Addprodebayidtxt.Text.ToString();
            string c = addprodsellpricetxt.Text.ToString();

            f1.AfterProductAdded(1, a, b, c, false);
        }

＆＃13;

我尝试了这个方法：ProductListView.items.add（item）; 但它不起作用当我尝试这个方法时：ProductListView.Invoke（new MethodInvoker（delegate（）{ProductListView.Items.AddRange（new ListViewItem [] {Item}）;}））; 我收到了这个错误： System.InvalidOperationException：＆＃39;在创建窗口句柄之前，无法在控件上调用Invoke或BeginInvoke。＆＃39;

我该如何解决？

感谢

Answer 1

试试这个

  if (System.Windows.Forms.Application.OpenForms["yourForm"] != null)
    {
       (System.Windows.Forms.Application.OpenForms["yourForm"] as Form1).AfterAdd_DoWork();
    }

从另一个表单添加listview项

1 个答案: