在安装了Metroframework Modern UI 1.4.0.0的VB.NET项目中,我将这部分代码用于模块,以循环遍历MetroTextBox
的所有MetroTabControl
es并将Cursor.Hand
提供给其嵌入的Clear按钮。我怎么能做同样的事情,包括MetroTextBox
es,可能是MetroTabControl
,我的形式或其他容器,例如?换句话说,我想将每个MetroTextBox
循环到一个表单中,即使它是嵌套的。
Public Sub TxtBoxes_Cursors(sender, e)
Dim _FormSender = DirectCast(sender, MetroFramework.Forms.MetroForm)
For Each _MetroTabControl As Control In _FormSender.Controls.OfType(Of MetroFramework.Controls.MetroTabControl)()
For Each _TabPage As Control In _MetroTabControl.Controls.OfType(Of MetroFramework.Controls.MetroTabPage)()
For Each _Textbox As Control In _TabPage.Controls.OfType(Of MetroFramework.Controls.MetroTextBox)()
If _Textbox.HasChildren Then
For Each _ClearButton As Control In _Textbox.Controls
If _ClearButton.Name = "lnkClear" Then
_ClearButton.Cursor = System.Windows.Forms.Cursors.Hand
End If
Next
End If
Next
Next
Next
End Sub
根据用户this指出评论的A Friend相关问题的接受答案,这是我的问题的确切答案。首先,我必须把这个Function
放入我的Module
:
Public 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
然后像这样编辑我的Public Sub
:
Public Sub TxtBoxes_Cursors(sender, e)
Dim _FormSender = DirectCast(sender, MetroFramework.Forms.MetroForm)
Dim _MetroTextBoxes As New List(Of Control)
For Each _Textbox As MetroFramework.Controls.MetroTextBox In FindControlRecursive(_MetroTextBoxes, _FormSender, GetType(MetroFramework.Controls.MetroTextBox))
If _Textbox.HasChildren Then
For Each _ClearButton As Control In _Textbox.Controls
If _ClearButton.Name = "lnkClear" Then
_ClearButton.Cursor = System.Windows.Forms.Cursors.Hand
End If
Next
End If
Next
End Sub