VB.net webbrowser control click radio button - vb.net

how to click the radio button for
<input name="years_option" value="all_years" type="radio">
the following code does not work. please help.
WebBrowser1.Document.GetElementById("years_option").SetAttribute("all_years", "radio")

at last got the answer from another source.
WebBrowser1.Document.GetElementById("years_option").SetAttribute("checked", True)

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Clicking button with selenium doesn't throw exception but the button isn't actually clicking?

I am trying to click a button, which once clicked some text should appear. Selenium is not throwing any errors which means the buttons should have been clicked however the text is not appearing (it works manually).
<button class = "redButton one">
<img src = "images/name.png" class = redImage">
"Name"
</button>
I tried to click the button with the xpath: "//button[contains(text(), 'Name')]". I don't understand why the text is not appearing.
What is the expected text to be displayed after button click event? In order to help with this request, provide the HTML snippet of <button> before & after click event. Since this is working fine manually, did you try adding adequate wait time for the text to display?

VB.NET - Click Login Button on Webbrowser page

I'm trying to click a submit button on a website, I'm doing it via element by id:
webbrowser1.document.getelementbyid("Enter").invokemember("submit")
Website button:
<input value"Enter" type="submit" />
But its not working
Would appreciate some help,
Thanks
EDIT :
For Each htmls As HtmlElement In WebBrowwer1.Document.All
If htmls.GetAttribute("value").ToLower = "enter" Then
htmls.InvokeMember("click")
End If
Next

Clicking HTML button programmatically

There is a website which has 4 web pages. On first page there is a button, On 2nd page there are also some buttons, on 3rd page there is also a single button, and 4th page also contained a single button. Problem is that my code programmatically clicks the button of first page 2nd page and 3rd page. But is is not clicking the button on 4th page programmatically. How can I enable my code to do that? Please suggest a reliable solution for this .. The HTML code of the button is given below
<FORM NAME='form1' METHOD='post' action='/dflogin.php'><INPUT TYPE='hidden' NAME='txtId' value='E712050-15'><INPUT TYPE='hidden' NAME='txtassId' value='1'><INPUT TYPE='hidden' NAME='txtPsw' value='HH29'><INPUT TYPE='hidden' NAME='txtLog' value='0'><h6 align='right'><INPUT TYPE='SUBMIT' NAME='btnSub' value='Next' style='background-color:#009900; color:#fff;'></h6></FORM>
This code clicks a button programmatically, you should be able to adapt this to what you need and hopefully it should work for you.
For Each webpageelement As HtmlElement In allButtons
If webpageelement.GetAttribute("value").Equals("Next") Then
webpageelement.InvokeMember("click")
Exit For
End If
Next

asp.net dropdown listbox not holding viewstate

I am using VS 2008, VB and using a dorpdown listbox in my asp.net webpage. I select a value from the dropdown, click the submit button, when the page comes back from the server, the value in the dropdown is blank (default). The dropdown controls viewstate is enabled.
The code for the submit button is:
<asp:Button ID="ButtonSubmit" runat="server" Text="Submit" CssClass="Button" />
The dropdownlist code is:
What am I missing here?
are you binding dropdown in page_load event? If yes move that code in
if(!page.isPostback)
{
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choose file box by clicking on image ? (not with browse button)

is it possible to show "choose file" window, when i click on some image ? i want to hide that input and browse button, which shows when i type
thanks
Long answer: Yes, you absolutely can. Get ready for some Javascript/CSS haxx that I cooked up. First the Javascript:
function getFilePathFromDialog() {
document.getElementById('fileBrowser').click();
document.getElementById('filePath').value = document.getElementById('fileBrowser').value;
}
Now the HTML:
<img src="path/to/image.jpg" onlick="getFilePathFromDialog();">
<input type="text" id="filePath" name="filePath" /><br />
<input type="file" id="fileBrowser" name="fileBrowser" style="visibility:hidden; display:none;" />
Basically all this does is hide the actual file dialog input field from view. When you click on your image it will fire the file dialog's click event. When the user chooses a file and clicks "Open", it will put the file path selected in the textbox called "filePath".
No, because of security restrictions in the browser. You have to go with Flash or Java to achieve that.