"Serge Baltic" wrote:

> R> ok - thanks... but how can I do this programmatically...
>
> You may use JScript.NET for that.
>
> I find it to be the most convenient way. Make a DLL with the code on JScript.NET
> that works with the browser, and call it whenever needed to say something
> to the browser object. In that case webBrowser1.Document would be just the
> HTML "document" object.
>
> R> C#
> R> webBrowser1.Document.... ? Could you please gimme a hint?
>
> In C# it's not that convenient. Generally …
>
> webBrowser1.Document.GetType().Invoke("methodname", …)
>
> see help for System.Type.Invoke.
>
> R> btw. is it possible to insert a code snipplet to a special location
> R> within the html document, to modify or override for example the
> R> JavaScript Code with my own code?
>
> What do you want to do? Call your managed code from the browser script?
>
> Two ways to do that, the first is to use the window.external which may point
> to any object, including a C# one. Unfortunately, it's not easy to set the
> external property to point to your object.
>
> Another way is to assign a delegate to a property of some HTML element using
> setAttribute. Then you may getAttribute from browser script and call it.
> However, that must be a OLE delegate not .NET delegate. One can be provided
> by JScript.NET, just set the attribute to one of your member functions, and
> will be callable:
>
> // in JS.NET
> webBrowser1.Document.body.setAttribute("Callback", this.CallbackFunction);
>
> // in browser script
> var callback = document.body.getAttribute("Callback");
> callback(param1, param2); // .NET method CallbackFunction will be called
>
> However, that all is hardly needed — you may attach to an HTML element event
> from managed JScript.NET code just the same way as from the browser script,
> like:
>
> document.getElementById("myButton").attachEvent("onclick", this.MyButtonClickHandler);
>
> - or -
>
> document.getElementById("myButton").onclick = this.MyButtonClickHandler;
>
> From C#, all of the above is very hard to do.
>
> (H) Serge
>
>