ListView不会显示添加的值 [英] ListView will not display added values

问题描述

我今天在ListView上度过了最艰难的时光。代码看起来不错，但是当我运行它时，我看不到ListView中的数据（它只是完全空白）。请帮助，我已经尝试过所有但仍然无法开始工作

I am having the hardest time with ListView today. The code looks good but when i run it i do not see data in the ListView (it''s just totally blank). Please help, I have tried everything but still can''t get it to working

Dim T As New Form1

Dim arr(3) As String

arr(0) = "a"
arr(1) = "b"
arr(2) = "c"
arr(3) = "d"

Dim itm As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(arr)

T.ListViewRev.Items.Add(itm)

T.ShowDialog()

推荐答案

i建议你在Form1的Load事件上绑定列表视图。

Hi,

i suggest you to bind the list view on Load event of Form1.

'Open the Form1
Dim T As New Form1
T.ShowDialog()

'Form1 Load event
Protected Sub Form1_Load(sender As Object, e As EventArgs)

'Bind the list view
Dim arr(3) As String
 
arr(0) = "a"
arr(1) = "b"
arr(2) = "c"
arr(3) = "d"
 
Dim itm As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(arr)
 
ListViewRev.Items.Add(itm)
End Sub

希望它有效。

hope it works.

这不是它的工作原理。 ListViewItem 的构造函数创建一个带有子项的项目：

http://msdn.microsoft.com/en-us/library/faw83h4f.aspx [ ^ ]。



子项用于使用值 System.Windows.Forms.View.Details 查看，其中显示列，所以你需要设置查看属性，定义列等。请参阅：

http://msdn.microsoft.com/en-us/library/system.windows.forms .listview.view.aspx [ ^ ]，

http://msdn.microsoft.com /en-us/library/system.windows.forms.view.aspx [ ^ ]。



上面引用的最后一个MSDN页面显示了一个<$的代码示例c $ c>详细信息，列和子项。如果这是您想要的，请检查它并添加代码中缺少的内容。如果您需要不同类型的视图，请阅读更多文档。

-SA

This is not how it works. This constructor of ListViewItem creates an item with sub-items:
http://msdn.microsoft.com/en-us/library/faw83h4f.aspx[^].

Sub-items are used in the View with the value System.Windows.Forms.View.Details, which show Columns, so you need to set the View property, define columns, etc. Please see:
http://msdn.microsoft.com/en-us/library/system.windows.forms.listview.view.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.view.aspx[^].

The last MSDN page referenced above shows a code sample with Details, Columns and sub-items. If this is what you wanted, check it and add what is missing from your code. If you need different kind of view, read the documentation more.

—SA

I认为问题是我需要添加一列

I think the problem was that i needed to add a column

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