Why I can't click this button?

Question

Hi... I want to click this Finish button with my Bot... but I can't.. I want to click this button automatically when I click my button1 in C# project. Html Codes: and I write: private void button1_Click(object sender EventArgs e) { webBrowser1.Document.GetElementById(XOOPS_TOKEN_REQUEST).InvokeMember(click); } but this code doesn't work... Help me please.. you can find this finish button when you fill register form in this page: http://sfj.grigori.org/register.php Cheers...

Vulpes · Answer

It looks to me like this piece of html represents the button you're trying to click: As there's no id or name attribute I think you'll have to resort to iterating through the elements until you find one with a value attribute of 'Finish'. This code should do that: foreach(HtmlElement element in webBrowser1.Document.All) { if (element.GetAttribute(value) == Finish) { element.InvokeMember(click); break; } }

Sam Hobbs · Answer

Just look for articles in this web site. You will find my article Introduction to Web Site Scraping . Note that everything I know I have learned by reading the documentation and by searching and searching and searching. There are other ways to find elements using the DOM. I would avoid going through all the elements using the all collection if possible. I would try to determine if I can navigate through the hierarchy of elements but I would have to study the document to determine how to process that document. My code in article is an example of what I mean. You can look at the documentation to quickly determine that HtmlDocument.GetElementsByTagName can be used to get a collection of input tags and then you can look for one with a value attribute of Finish and a type attribute of submit.

Sam Hobbs · Answer

I was the first to have made 10000 posts in the CodeGuru forums most of which were for C++ and nearly all posts were attempts to help others. I am at level 5 in the MSDN forums but I forget what forums. I am still learning C# and .Net and many other things. Vulpes knows more about C# and .Net. I am also experienced with C++. Most of my professional experience was with COBOL most of which was before Windows existed. I have used other languages too of course.

Csharp Ninja · Answer

Sam... you have 5820 posts in this website. I wonder that are you a C# master or not? what programming languages do you know? I'm just asking...

Sam Hobbs · Answer

As you wish I will leave this for Vulpes.

Csharp Ninja · Answer

I mean I want to go any directories (like /register.php  /editaccount.php) on all xoops based sites.. for example I want to go to /register.php page on any site homepage when I click button1.. what code should I write in button1 click event. hey @Vulpes do you understand me? help me pls. thanks

Sam Hobbs · Answer

Then you do not want to click it since clicking it will navigate to the address. I don't know what an action is. If you can explain what an action is in terms of HTML then I can probably explain ho to do it but I don't know what iMacros are.

Csharp Ninja · Answer

no I don't want to navigate http://sfj.grigori.org/edituser.php page. I want to go edituser.php like an action. for example we can do that with FORM=ACTION:edituser.php code in iMacros . but I don't know how can I do that with C#. I need it because I will use that code for my URL List. (for every sites)

Sam Hobbs · Answer

It is not a button; it is an anchor which is often called a link. Why do you need to click it? If you need to go to the page then navigate to the page. So I think that would be: webBrowser1.Navigate(http://sfj.grigori.org/edituser.php); Hopefully it is that simple. It depends on the situation. There will be times when you might need to get all the anchors (a tags or elements) in a page filter them somehow then show a list to select from. Then when one of them is selected your program could navigate to the page specified in the href. For example if a page shows some pictures; you could get all the links and then automatically download all links that are for pictures.

Csharp Ninja · Answer

okay sam thanks a lot. I have a question. new page contains editaccount.php and code is: Edit Account how can I click this Edit Account button? how we can go to blablabla.php  blablabla.aspx  blablabla.html pages with c#?

Csharp Ninja · Answer

@Sam Hobbs sorry I am very new programmer can you suggest me a good and short source to making bots with C#?? @vulpes thank you very much bro. you are my hero hehehe :) I want to know C# just like you. please suggest me a good source. Cheers..

Sam Hobbs · Answer

Why are you using XOOPS_TOKEN_REQUEST? Do you know what it is? I do not. When I go to that page I see a Submit button but not a Finish button. So I am probably not able to tell you what to use but you probably do not want to use XOOPS_TOKEN_REQUEST. Also if it were me and I was having problems with the code I would split the line into two or more lines. In you code you call GetElementById then you call InvokeMember. If there is a problem with GetElementById then you might never know that there is a problem; your code might simply fail without warning. So you should first check the return value from GetElementById to ensure it works before calling InvokeMember.