C # WebBrowser controls in a detailed

827969653

0  , Common method Navigate (string  urlstring): Browse urlstring represented by URL Navigate (system.uri URL) : Browse URLs represented by URL navigate (stringstringbyte  additionalheaders): Browse urlstring for URLs and send messages in PostData

//(usually when we log in to a website, we send the username and password as postdata.)GoBack (): Back GoForward (): Forward refresh (): Refresh Stop (): Stop GoHome () : Browse the Home page WebBrowser control's Common properties: Document: Get the currently browsing documents Documenttitle: Gets the page title currently being browsed StatusText: Gets the text URL of the current status bar: Gets the urireadystate of the URL currently being browsed: Gets the status of the browse WebBrowser common events for the control: documenttitlechanged,cangobackchanged,cangoforwardchanged,documenttitlechanged, Progresschanged,progresschanged1 , gets the value of the non-input control:webbrowser1.document.all["Control ID"]. InnerText; or webBrowser1.Document.GetElementById ("Control ID"). InnerText; or webBrowser1.Document.GetElementById ("Control ID"). GetAttribute ("value");2 , gets the value of the input control:webbrowser1.document.all["Control ID"]. GetAttribute ("value");; or WebBrowser1.Document.GetElementById ("Control ID"). GetAttribute ("value"); 3, assign a value to the input box://Input BoxUser. InnerText ="myname";p Assword. InnerText="123456"; WebBrowser1.Document.GetElementById ("Password"). SetAttribute ("value","Welcome123"); 4, dropdown, check, multi-select:

//Drop- down box:Secret. SetAttribute ("value","Question1"); //check boxRememberMe. SetAttribute ("Checked","True");//Multi-Select boxCookietime. SetAttribute ("checked","checked");

5 , manipulating elements without IDs based on elements that are known to have IDs:htmlelement btndelete= WebBrowser1.Document.GetElementById (Passengerid). parent.parent.parent.parent.firstchild.firstchild.children[1]. Firstchild.firstchild; according to parent,firstchild,children[1] Array, and how many levels of elements can be found. 6 , get the style of a div or other element:webBrowser1.Document.GetElementById ("Adddiv"). Style; 7 , directly executes the script function in the page, with dynamic parameters or without parameters:object[] Objarray=Newobject[1];objarray[0] = (Object) This. Labflightnumber.text;webbrowser1.document.invokescript ("Ticketbook", Objarray); WebBrowser1.Document.InvokeScript ("return False"); 8 , Auto-click, Auto-submit:HtmlElement btnadd= Doc. getElementById ("Adddiv"). Firstchild;btnadd.invokemember ("Click"); 9, automatically assign a value, and then click the Submit button if there is a script error or a problem that has been loaded, the Click event is usually executed too quickly, and the timer control needs to defer the execution of the Submit button event:

 this . Timer1. Enabled = true   this . Timer1. Interval = 1000  * ; private  void  Timer1_Tick (object   sender, EventArgs e) { this . Timer1.    Enabled = false    click  Span style= "color: #800000;" >"); //  Perform a button action    

Ten , Masking script error:  One , automatically click the pop-up prompt box:

Private voidWebbrowser1_navigated (Objectsender, WebBrowserNavigatedEventArgs e) {  //Auto-click Popup Confirmation or pop-up promptIHTMLDocument2 vdocument =(IHTMLDocument2) webBrowser1.Document.DomDocument; VDocument.parentWindow.execScript ("function confirm (str) {return true;}","JavaScript");//Popup ConfirmationVDocument.parentWindow.execScript ("function alert (str) {return true;}","JavaScript");//pop-up tips}

WebBrowser when the page is loaded, auto-click (block) of the popup box when you do some automation in the page

Private voidWebbrowser1_documentcompleted (Objectsender, WebBrowserDocumentCompletedEventArgs e) {    //Auto-click Popup Confirmation or pop-up promptIHTMLDocument2 vdocument =(IHTMLDocument2) webBrowser1.Document.DomDocument; VDocument.parentWindow.execScript ("function confirm (str) {return true;}","JavaScript");//Popup ConfirmationVDocument.parentWindow.execScript ("function alert (str) {return true;}","JavaScript");//pop-up tips//here is your code of execution action}

 A , get the IFRAME in the Web page, and set the SRC HTMLDocument of the iframedocframe= webbrowser1.document.window.frames["MainFrame"]. Document; or HTMLDocument docframe= webbrowser1.document.all.frames["MainFrame"]. Document; docframe.all["MainFrame"]. SetAttribute ("src","http://www.baidu.com/");  -, when there is an IFRAME in the page Webbrowser1.url and webbrowser1_documentcompleted in the E.url, the former is the main frame of the URL, which is the current active box port URL.  -, let the control focus This. Webbrowser1.select (); This. Webbrowser1.focus ();d OC. all["tpl_password_1"]. Focus ();  the , open the local Web page file webbrowser1.navigate (Application.startuppath+@"\test.html");  -, getting elements, forms

//get elements by name PublicHtmlElement Getelement_name (WebBrowser WB,stringName) {HtmlElement e=WB.    Document.all[name]; returne;}//get elements by ID PublicHtmlElement getelement_id (WebBrowser WB,stringID) {HtmlElement e=WB.    document.getElementById (ID); returne;}//get elements based on index PublicHtmlElement Getelement_index (WebBrowser WB,intindex) {HtmlElement e=WB.    Document.all[index]; returne;}//get form table sole name name, return form PublicHtmlElement Getelement_form (WebBrowser WB,stringform_name) {HtmlElement e=WB.    Document.forms[form_name]; returne;}//set the value of the element Value property Public voidWrite_value (HtmlElement E,stringvalue) {E.setattribute ("value", value);}//methods of executing elements, such as: Click,submit (requires form table sole name), etc. Public voidBtn_click (HtmlElement E,strings) {E.invokemember (s);}

17. Disable Hyperlinks
There are two kinds of hyperlinks, one is the current window direct, one is open in a new window

Of course the window turns directly:
Set the allownavigation of WebBrowser to False

Open in a new window:
Disable new window open, need to handle WebBrowser NewWindow event

private void Webbrowser1_newwindow (object sender, CancelEventArgs e)
{
E.cancel = true;
}

18. Disable Error script prompt
Set the scripterrorssuppressed of the WebBrowser control to True

19. Disable Right-click menu
Set the iswebbrowsercontextmenuenabled of WebBrowser to False

20. Disable shortcut keys
Set the webbrowsershortcutsenabled of WebBrowser to False

Last Note:
Set WebBrowser's Allowwebbrowserdrop to false, and don't forget it.

C # WebBrowser controls in a detailed