vb.net 获取第二列中所选项目的值...返回上一个项目
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get value of selected item in second column... returning previous item
提问by ed209
I get that there are other questions like this, but for some reason nobody seems to have this problem. I'm trying to populate a 2 column listview that I create on load like this.
我知道还有其他类似的问题，但由于某种原因，似乎没有人遇到这个问题。我正在尝试填充我像这样在加载时创建的 2 列列表视图。
With lstShipMethods
.View = View.Details
.FullRowSelect = True
.HeaderStyle = ColumnHeaderStyle.None ' set to whatever you need
.Columns.Clear() ' make sure collumnscollection is empty
' Add 3 columns
.Columns.AddRange(New ColumnHeader() {New ColumnHeader(), New ColumnHeader()})
End With
lstShipMethods.Items.Add(New ListViewItem({"col1data", "col2data1"}))
lstShipMethods.Items.Add(New ListViewItem({"col1data", "col2data2"}))
It populates just fine, but when I try to get the data from the selected items column like this
它填充得很好，但是当我尝试从这样的选定项目列中获取数据时
Private Sub lstShipMethods_SelectedIndexChanged(sender As Object, e As EventArgs) Handles lstShipMethods.SelectedIndexChanged
Dim val As String = lstShipMethods.FocusedItem.SubItems(1).Text
MessageBox.Show(val)
End Sub
after the first click it will always show both values aka second column from row one and row two will be output in the MessageBox.
第一次单击后，它将始终显示两个值，即第一行的第二列，第二行将在MessageBox.
回答by the_lotus
You can use the ItemSelectionChangedevent instead.
您可以改用ItemSelectionChanged事件。
Private Sub lstShipMethods_SelectedIndexChanged(sender As System.Object, e As ListViewItemSelectionChangedEventArgs) Handles lstShipMethods.ItemSelectionChanged
If e.IsSelected Then
Dim val As String = lstShipMethods.FocusedItem.SubItems(1).Text
MessageBox.Show(val)
End If
End Sub
