我似乎无法找到一种简单易用的.net原生方法来获取.net winform上的组合框,以显示一个值并根据选择返回另一个值,而无需创建自己的帮助器类,并且知道winforms将会在放入它的对象上显示ToString方法。在.net组合框中显示一个值并存储另一个值的最佳方法是什么?
这就是我现在正在做的,非常普遍。首先,创建辅助类。
Public Class ListItem
Public Value As Object
Public DisplayString As String
Public Sub New(ByVal NewValue As Object, ByVal NewDisplayString As String)
Value = NewValue
DisplayString = NewDisplayString
End Sub
Public Overrides Function ToString() As String
Return DisplayString
End Function
End Class
然后,从集合或其他任何东西加载组合框。
For Each o as WhateverObject In CollectionIwantToaddItemsFrom
li = New ListItem(o.ValueToReturn, o.ValueToDisplay)
Me.ComboBox1.Items.Add(li)
Next
最后,使用对象
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles ComboBox1.SelectedIndexChanged
if me.combobox1.selecteditem is nothing then exit sub
Dim li As ListItem = me.ComboBox1.SelectedItem
Dim o as object = li.value
'do stuff with o.
end sub
我敢肯定有东西,我比较好在我眺望框架使用。它是什么?