The WebBrowser.Document Does not update

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Hello Experts
When I Navigate in the Webbrowser the Document property dose not represent the new page document; In another word it doesn't update.

Why it happens? what should I do?

Explanation: In the below code the document1 is equal to document2.

C#

this.WebBrowser.Navigate("facenama.com");

HtmlDocument document1 = this.WebBrowser.Document;

//Here I sign in so the webBrowser navigates to another page

HtmlDocument document2 = this.WebBrowser.Document;

Posted 15-Apr-13 19:42pm

Meysam Toluie

Updated 15-Apr-13 21:16pm

v5

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Comments

Sergey Alexandrovich Kryukov 16-Apr-13 2:57am

Did you try correct URI like http://facenama.com?
—SA

Meysam Toluie 16-Apr-13 3:06am

The above code is not the exact code. It is for explanation.
Yes, I did.

2 solutions

Solution 2

Here is the solution who is interested

C#

HtmlElement headElement = webBrowser1.Document.GetElementsByTagName("head")[0];
HtmlElement scriptElement = webBrowser1.Document.CreateElement("script");
IHTMLScriptElement domScriptElement = (IHTMLScriptElement)scriptElement.DomElement;
domScriptElement.text = "function applyChanges(){/*DO WHATEVER YOU WANT HERE*/}";
headElement.AppendChild(scriptElement);

// Call the nextline whenever you want to execute your code
webBrowser1.Document.InvokeScript("applyChanges");

Posted 15-Apr-13 22:25pm

JitendraSahu

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2013-04-15T21:22:00

Solution 1

Please refer the below answers.

1. WebBrowser Document is always null[^].

Quote:
You should handle the DocumentCompleted[^] event and access the document in your event handler when that fires.

Navigation and document loading is handled asynchronously - therefore the control hasn't actually navigated or loaded anything when the Navigate method returns; hence why these are null.

2. .NET C#: WebBrowser control Navigate() does not load targeted URL[^]. Find example here.

Posted 15-Apr-13 21:22pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

Meysam Toluie 16-Apr-13 7:36am

I handled the DocumentCompleted but i put NO CODE in the handler method and it just updates.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 16-Apr-13 7:48am

So, the problem is solved, right ?

Meysam Toluie 16-Apr-13 9:14am

Yes, the solution accepted.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 16-Apr-13 9:52am

Thanks a lot Meysam Tolouee... :)