C#webbrowser control using tutorials and tips for collecting

Common methods

1Navigate (stringurlstring): Browse urlstring-represented URLs2 Navigate (system.uri URL): Browse URLs represented by URL3Navigate (stringURLString,stringTargetframename,byte[] PostData,stringadditionalheaders): Browse urlstring represented URLs and send messages in PostData4 //(usually when we log in to a website, we send the username and password as postdata.)5 GoBack (): Back6 GoForward (): Forward7 Refresh (): Refreshing8 Stop (): Stop9 gohome (): Browse HomeTen Common properties of the WebBrowser control: One Document: Get the documents currently being browsed A documenttitle: Gets the title of the page currently being browsed - statustext: Gets the text of the current status bar - URL: Gets the URI of the URL currently being browsed the ReadyState: Get the status of the browse - Common events for WebBrowser controls: - documenttitlechanged, - cangobackchanged, + cangoforwardchanged, - documenttitlechanged, + ProgressChanged, A progresschanged atDocumentCompleted events After page load is complete

Get the value of a non-input control

1 webbrowser1.document.all[" control ID"]. InnerText; 2 or WebBrowser1.Document.GetElementById (" control ID"). InnerText; 3 or WebBrowser1.Document.GetElementById (" control ID"). GetAttribute ("value");

屏蔽脚本错误： 将WebBrowser控件ScriptErrorsSuppressed设置为True即可

Get elements, forms

1 //get elements by name2  PublicHtmlElement Getelement_name (WebBrowser WB,stringName)3 {4HtmlElement e =WB. Document.all[name];5     returne;6 }7  8 //get elements by ID9  PublicHtmlElement getelement_id (WebBrowser WB,stringID)Ten { OneHtmlElement e =WB. document.getElementById (ID); A     returne; - } -   the //get elements based on index -  PublicHtmlElement Getelement_index (WebBrowser WB,intindex) - { -HtmlElement e =WB. Document.all[index]; +     returne; - } +   A //get form table sole name name, return form at  PublicHtmlElement Getelement_form (WebBrowser WB,stringform_name) - { -HtmlElement e =WB. Document.forms[form_name]; -     returne; - } -   in   - //set the value of the element Value property to  Public voidWrite_value (HtmlElement E,stringvalue) + { -E.setattribute ("value", value); the } *   $ //methods of executing elements, such as: Click,submit (requires form table sole name), etc.Panax Notoginseng  Public voidBtn_click (HtmlElement E,strings) - { the   + E.invokemember (s); A}

1[DllImport ("Wininet.dll", CharSet = CharSet.Auto, SetLastError =true)]2       Static extern BOOLInternetgetcookieex (stringPchurl,stringPchcookiename, StringBuilder Pchcookiedata,refSystem.UInt32 Pcchcookiedata,intdwFlags, IntPtr lpreserved);3       Private Static stringGetcookiestring (stringURL)4       {5           UINTDataSize =1024x768;6StringBuilder Cookiedata =NewStringBuilder ((int) datasize);7           if(! Internetgetcookieex (URL,NULL, Cookiedata,refDataSize,0x2000, IntPtr.Zero))8           {9               if(DataSize <0)Ten                   return NULL; OneCookiedata =NewStringBuilder ((int) datasize); A               if(! Internetgetcookieex (URL,NULL, Cookiedata,refDataSize,0x00002000, IntPtr.Zero)) -                   return NULL; -           } the           returncookiedata.tostring (); -       } -       Private voidWebbrowser1_documentcompleted_1 (Objectsender, WebBrowserDocumentCompletedEventArgs e) -       { +richTextBox1.Text =string. Empty; -           if(Cbcookie. Checked) +           { A               if(checkbox1.checked) at               { -richTextBox1.Text =getcookiestring (TextBox1.Text.Trim ()); -               } -               Else -               { -richTextBox1.Text =WebBrowser1.Document.Cookie; in               } -           } to       } +       

C#webbrowser control using tutorials and tips for collecting