Simple interaction with the WebBrowser

As a first article, the simple control is used without saying it.

Start with a simple interaction!

C # uses JS functions already in the Web page

  WebBrowser.Document.InvokeScript ("Stop"); // WebBrowser is the name of WebBrowser, which is initiated directly through the Invokescipt method of document. parameter is the name of the JS function

This invokescript is a return value that can accept the return value of the page's JS function.

C # Add a new JS function to a Web page

It can also be achieved in WebBrowser.

The basic ideas are:

Create a label.

Fill a value in a label that needs to be populated

Add a label to a Web page

Then see if the situation starts.

                var setnewhtml = WebBrowser1.Document.CreateElement ("script"); // Create a label                Setnewhtml.setattribute ("text",@ "function Newfun () {alret (' Hello ')} "); // incoming a value                to a label WebBrowser1.Document.Body.AppendChild (setnewhtml); // fill to the end of the body of the Web page

C # get the label for a Web page

  var getidhtml= webBrowser1.Document.Body.Document.GetElementById (" tag ID"  );                 // getidhtml.innerhtml Gets the HTML               for this tag // Getidhtml.innertext Gets the value of the label
               Getidhtml is a htmlelemnt type
               The basic of the label can be obtained through this

C # Modify Page content

Ditto, because the methods and properties of the htmlelemnt type are mostly get;set, so you can get the modified

    var getidhtml= webBrowser1.Document.Body.Document.GetElementById ("a" );                 " <a>AAAABBBB</a> ";

or modify it directly.

WebBrowser1.Document.Body.Document.GetElementById ("a"). SetAttribute ("," "");

This method has two parameters, the first one is to set the name of the parameter, the second is the specific value of the parameter

C # directly uses some of its own properties for labels on Web pages

such as clicks, etc.

WebBrowser1.Document.Body.Document.GetElementById ("a"). InvokeMember ("click");

Simple interaction with the WebBrowser