vb.net 如何获取组合框下拉列表中的每个值？
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How to get each value in combobox dropdown list?
提问by Ke Vin
How to get each value in combobox dropdown list?
如何获取组合框下拉列表中的每个值？
here is what i try
这是我尝试的
For Each obj In cbComboBox.Items
MessageBox.Show(obj.ToString)
Next
it just showing up the combobox datasource object, it not showing, what is in the items
它只是显示组合框数据源对象，它没有显示项目中的内容
回答by OneFineDay
Is there a class type to extract? This is an objectCollection. When you add things to them there are stored as objects. So cast the obj back to it's type and then proceed.
是否有要提取的类类型？这是一个objectCollection. 当你向它们添加东西时，它们被存储为对象。所以将 obj 转换回它的类型，然后继续。
For Each obj In cbComboBox.Items
Dim item = TryCast(obj, {the object type or class})
If Not item Is Nothing Then
'use the item as it is converted correctly
End If
Next
回答by Pete
For each item As DataRowView In cbComboBox.Items
msgbox(item.Row("valuecolumnname"))
next
Just thought i would add this also as another option.
只是想我也会添加这个作为另一种选择。
