System::Windows::Forms::WebBrowser and IHTMLDocument2

[A Wieser]

I'm trying to create a browser control in edit mode with VS 2005 using C++.

I've added the WebBrowser Control to my form as webBrowser1.

However, I can't seem to get to an IHTMLDocument2 so that I can switch
designMode on.
I try this, but get an exception.



mshtml::IHTMLDocument2 ^doc;
Object ^boxDoc = this->webBrowser1->Document;
doc = (mshtml::IHTMLDocument2 ^)boxDoc; // exception thrown here!
doc->designMode = "On";

An unhandled exception of type 'System.InvalidCastException' occurred in
testforms.exe

Additional information: Unable to cast object of type
'System.Windows.Forms.HtmlDocument' to type 'mshtml.IHTMLDocument2'.

Any suggestions on how to do this?

Tony

 

[Nat]

Hello A,

You can't really cast it as webBrowser doesn't implement mshtml.IHTMLDocument2.
You can use reflection to do that.

It should look like

Type ^type;
PropertyInfo ^propertyInfo;
type = Webbrowser.Document.DomDocument.GetType();
propertyInfo = Type.GetProperty("designMode");
propertyInfo.SetValue(base.Document.DomDocument, "On", null);

 

[Nat]

Hello A,

Try....

Type ^type;
PropertyInfo ^propertyInfo;
type = this->webBrowser1->Document->DomDocument->GetType();
propertyInfo = type->GetProperty("designMode"); // is null
propertyInfo->SetValue(base.Document.DomDocument, "On", null);