如何在单击事件按钮上将线串插入到列表视图中

问题描述

你好

谁能帮助我如何在单击事件按钮上将线串插入到列表视图中.

基本上我的项目是基于餐厅的，如果我想在列表视图中添加 starter 和 main 课程，我想在它们之间用行字符串将它们分开像这样的两个不同的课程:

Hello

Could anyone help me how to insert a line string into listview on click event button.

Basically my project is restaurant based, for instant if I want to add a starter and a main course into my listview, I want to divide them with a line string in between the two different courses like so:

1 Soup		£0.00
1 Bruschetta	£0.00
****** Course 1 ******
1 Ravioli	£0.00
1 Lasagne	£0.00
1 Veg. Pizza    £0.00

这是单击事件按钮的代码(请参见下文)，但不显示任何内容.

This is the code of the click event button (see below) but its not displaying nothing.

private void cmdCourseSeparator_Click(object sender, EventArgs e)
        {
            string line1 = "════";
            string line2 = "══════ Course 1 ══════";
            string line3 = "══════";
            string line4 = "══════ Course 2 ══════";
            ListViewGroup liViGroup = new ListViewGroup();
            liViGroup.HeaderAlignment = System.Windows.Forms.HorizontalAlignment.Center;
            if (liViGroup.Header == "Starter")
            {
                liViGroup.Items.Add(line1);
                //foodItem.SubItems.Add(line2);
                //foodItem.SubItems.Add(line3);
                //foodItem.SubItems.Add(line3);
            }
            this.TableOrderListView.Groups.AddRange(new System.Windows.Forms.ListViewGroup[] {
            liViGroup});
        }

有人可以帮助我，告诉我我想念的是什么...

亲切的问候


Roni

Could someone please help me and tell what am I missing...

Kind Regards


Roni

推荐答案

ListViewGroup liViGroup = new ListViewGroup();
liViGroup.HeaderAlignment = System.Windows.Forms.HorizontalAlignment.Center;

if (liViGroup.Header == "Starter") // No header was assigned to liViGroup, so it never enters this block
{
     liViGroup.Items.Add(line1);

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