循环遍历表单中的所有文本框,包括组框内的文本框

kod*_*kod 14 vb.net winforms

我在winform中有几个文本框,其中一些在groupbox中.我试图遍历我的表单中的所有文本框:

For Each c As Control In Me.Controls
    If c.GetType Is GetType(TextBox) Then
        ' Do something
    End If
Next
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但它似乎跳过了groupbox中的那些并且仅循环到表单的其他文本框.所以我为groupbox文本框添加了另一个For Each循环:

For Each c As Control In GroupBox1.Controls
    If c.GetType Is GetType(TextBox) Then
        ' Do something
    End If
Next
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我想知道:有没有办法循环遍历表单中的所有文本框 - 包括组框内的文本框 - 只有一个For Each循环?或者更好/更优雅的方式来做到这一点?

提前致谢.

Tim*_*ter 19

你可以使用这个功能,linq可能是一种更优雅的方式.

Dim allTxt As New List(Of Control)
For Each txt As TextBox In FindControlRecursive(allTxt, Me, GetType(TextBox))
   '....'
Next

Public Shared Function FindControlRecursive(ByVal list As List(Of Control), ByVal parent As Control, ByVal ctrlType As System.Type) As List(Of Control)
    If parent Is Nothing Then Return list
    If parent.GetType Is ctrlType Then
        list.Add(parent)
    End If
    For Each child As Control In parent.Controls
        FindControlRecursive(list, child, ctrlType)
    Next
    Return list
End Function
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