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HtmlElementCollection Class
Visual Studio 2008
Defines a collection of HtmlElement objects.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The following code example uses HtmlElementCollection objects to print out a textual representation of the Document Object Model (DOM) of a page.
Private Sub PrintDomBegin() If (WebBrowser1.Document IsNot Nothing) Then Dim ElemColl As HtmlElementCollection Dim Doc As HtmlDocument = WebBrowser1.Document If (Not (Doc Is Nothing)) Then ElemColl = Doc.GetElementsByTagName("HTML") Dim Str As String = PrintDom(ElemColl, New System.Text.StringBuilder(), 0) WebBrowser1.DocumentText = Str End If End If End Sub Private Function PrintDom(ByVal ElemColl As HtmlElementCollection, ByRef ReturnStr As System.Text.StringBuilder, ByVal Depth As Integer) As String Dim Str As New System.Text.StringBuilder() For Each Elem As HtmlElement In ElemColl Dim ElemName As String ElemName = Elem.GetAttribute("ID") If (ElemName Is Nothing Or ElemName.Length = 0) Then ElemName = Elem.GetAttribute("name") If (ElemName Is Nothing Or ElemName.Length = 0) Then ElemName = "<no name>" End If End If Str.Append(CChar(" "), Depth * 4) Str.Append(ElemName & ": " & Elem.TagName & "(Level " & Depth & ")") ReturnStr.AppendLine(Str.ToString()) If (Elem.CanHaveChildren) Then PrintDom(Elem.Children, ReturnStr, Depth + 1) End If Str.Remove(0, Str.Length) Next PrintDom = ReturnStr.ToString() End Function
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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