C# 在 listView 中创建列并添加项目
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Creating columns in listView and add items
提问by 3D-kreativ
I'm learning how to use the listViewin a windowsFormand I have some problems that I hope to solve here. The first thing is when I'm creating the columnswith the code below:
我正在学习如何使用listViewin awindowsForm并且我有一些我希望在这里解决的问题。第一件事是当我使用以下代码创建列时：
private void initListView()
{
// Add columns
lvRegAnimals.Columns.Add("Id", -3,HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Name", -3, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Age", -3, HorizontalAlignment.Left);
}
When I run the program, the name of the columns are not visible, they are all at the left corner, and I have to "drag" them to be able to read the text. What have I done wrong?
当我运行程序时，列的名称是不可见的，它们都在左角，我必须“拖动”它们才能读取文本。我做错了什么？
And finally I wonder how I add items to the columns. Do I first create a object like
最后，我想知道如何将项目添加到列中。我是否首先创建一个对象
ListViewItem item1 = new ListViewItem(???);
item1.SubItems.Add("text");
Is each listViewItem objects a column or a row? How do I add rows of info? Preciate some help! Thanks!
每个 listViewItem 对象是一列还是一行？如何添加信息行？珍视一些帮助！谢谢！
采纳答案by Tom
Your first problem is that you are passing -3 to the 2nd parameter of Columns.Add. It needs to be -2 for it to auto-size the column. Source: http://msdn.microsoft.com/en-us/library/system.windows.forms.listview.columns.aspx(look at the comments on the code example at the bottom)
您的第一个问题是您将 -3 传递给 Columns.Add 的第二个参数。它需要为 -2 才能自动调整列大小。来源：http: //msdn.microsoft.com/en-us/library/system.windows.forms.listview.columns.aspx（查看底部代码示例的注释）
private void initListView()
{
// Add columns
lvRegAnimals.Columns.Add("Id", -2,HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Name", -2, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Age", -2, HorizontalAlignment.Left);
}
You can also use the other overload, Add(string). E.g:
您还可以使用其他重载 Add(string)。例如：
lvRegAnimals.Columns.Add("Id");
lvRegAnimals.Columns.Add("Name");
lvRegAnimals.Columns.Add("Age");
Reference for more overloads: http://msdn.microsoft.com/en-us/library/system.windows.forms.listview.columnheadercollection.aspx
更多重载参考：http: //msdn.microsoft.com/en-us/library/system.windows.forms.listview.columnheadercollection.aspx
Second, to add items to the ListView, you need to create instances of ListViewItem and add them to the listView's Items collection. You will need to use the string[] constructor.
其次，要将项目添加到 ListView，您需要创建 ListViewItem 的实例并将它们添加到 listView 的 Items 集合中。您将需要使用 string[] 构造函数。
var item1 = new ListViewItem(new[] {"id123", "Tom", "24"});
var item2 = new ListViewItem(new[] {person.Id, person.Name, person.Age});
lvRegAnimals.Items.Add(item1);
lvRegAnimals.Items.Add(item2);
You can also store objects in the item's Tag property.
您还可以将对象存储在项目的 Tag 属性中。
item2.Tag = person;
And then you can extract it
然后你可以提取它
var person = item2.Tag as Person;
Let me know if you have any questions and I hope this helps!
如果您有任何问题，请告诉我，我希望这会有所帮助！
回答by IamBatman
I didn't see anyone answer this correctly. So I'm posting it here. In order to get columns to show up you need to specify the following line.
我没有看到有人正确回答这个问题。所以我把它贴在这里。为了显示列，您需要指定以下行。
lvRegAnimals.View = View.Details;
And then add your columns after that.
然后在此之后添加您的列。
lvRegAnimals.Columns.Add("Id", -2, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Name", -2, HorizontalAlignment.Left);
lvRegAnimals.Columns.Add("Age", -2, HorizontalAlignment.Left);
Hope this helps anyone else looking for this answer in the future.
希望这可以帮助其他人在未来寻找这个答案。
回答by Navin Pandit
You need to set property for the control:
您需要为控件设置属性：
listView1.View = View.Details;
回答by U Zay Yar
listView1.View = View.Details;
listView1.Columns.Add("Target No.", 83, HorizontalAlignment.Center);
listView1.Columns.Add(" Range ", 100, HorizontalAlignment.Center);
listView1.Columns.Add(" Azimuth ", 100, HorizontalAlignment.Center);
i also had same problem .. i drag column to left .. but now ok .. so let's say i have 283*196 size of listview ..... We declared in the column width -2 for auto width .. For fitting in the listview ,we can divide listview width into 3 parts (83,100,100) ...
我也有同样的问题..我把列拖到左边..但现在好了..所以假设我有283*196大小的listview...我们在列宽-2中声明了自动宽度..适合在列表视图中，我们可以将列表视图宽度分为 3 部分 (83,100,100) ...
