HtmlElement.DomElement Property (System.Windows.Forms)

DomElement Property

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

HtmlElement..::.DomElement Property

Gets an unmanaged interface pointer for this element.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)

Syntax

Visual Basic

Public ReadOnly Property DomElement As Object

public Object DomElement { get; }

Visual C++

public:
property Object^ DomElement {
    Object^ get ();
}

member DomElement : Object

Property Value

Type: System..::.Object
The COM IUnknown pointer for the element, which you can cast to one of the HTML element interfaces, such as IHTMLElement.

Remarks

HtmlElement is a wrapper for the Internet Explorer Document Object Model (DOM), which is written using the Component Object Model (COM). If you need to access unexposed properties or methods on the underlying COM interfaces, such as IHTMLElement, you can use this object to query for them.

In order to use the unmanaged interfaces, you will need to import the MSHTML library (mshtml.dll) into your application. However, you can also execute unexposed properties and methods using the Invoke method.

Examples

The following code example uses unmanaged interfaces to take the currently selected text and convert it into a hyperlink, with the URL chosen by the user. This code was written under the assumption that your form has a WebBrowser control named WebBrowser1, and that you have added the unmanaged MSHTML library as a reference to your project.

Visual Basic

Private Sub CreateHyperlinkFromSelection()
    If (WebBrowser1.Document IsNot Nothing) Then
        Dim IDoc As mshtml.IHTMLDocument2 = WebBrowser1.Document.DomDocument

        If (Not (IDoc Is Nothing)) Then
            Dim ISelect As mshtml.IHTMLSelectionObject = IDoc.selection
            If (ISelect Is Nothing) Then
                MsgBox("Please select some text before using this command.")
                Exit Sub
            End If

            Dim TxtRange As mshtml.IHTMLTxtRange = ISelect.createRange()

            ' Create the link.
            If (TxtRange.queryCommandEnabled("CreateLink")) Then
                TxtRange.execCommand("CreateLink", True)
            End If
        End If
    End If
End Sub

        private void CreateHyperlinkFromSelection()
        {
            if (webBrowser1.Document != null)
            {

                mshtml.IHTMLDocument2 iDoc = (mshtml.IHTMLDocument2)webBrowser1.Document.DomDocument;

                if (iDoc != null) 
                {
                    mshtml.IHTMLSelectionObject iSelect = iDoc.selection;
                    if (iSelect == null)
                    {
                        MessageBox.Show("Please select some text before using this command.");
                        return;
                    }

                    mshtml.IHTMLTxtRange txtRange = (mshtml.IHTMLTxtRange)iSelect.createRange();

                    // Create the link.
                    if (txtRange.queryCommandEnabled("CreateLink"))
                    {
                        Object o = null;
                        txtRange.execCommand("CreateLink", true, o);
                    }
                }
            }
        }

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

HtmlElement Class

System.Windows.Forms Namespace

DomDocument

Other Resources

IHTMLElement2 Interface