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WebBrowser control HTMLDocument automate selecting option drop-down

I'm trying to automate in a WinForm using a WebBrowser control to navigate and pull report info from a website. You can enter values in textboxes and invoke the click events for buttons and links, but I have not figured out how select a option drop-down .... in a automated way. Anybody recommend how to select a item from a drop-down, given this html example:

<SELECT id="term_id" size="1" name="p_term_in"><option value="">Select Another Term<option value="201050">Summer 2010<option value="201010">Spring 2010<option value="200980">Fall 2009</SELECT>

For others that can learn from entering values to textboxes and invoking click events here's how you do it:

webBrowser1.Document.GetElementById("<HTML ELEMENT NAME>").SetAttribute("value", "THE NAME");

Invoke button or hyperlink click:

webBrowser1.Document.GetElementById("<BUTTON>").InvokeMember("click");

So I've solved entering values and invoking click, but I have not solved selecting a drop-down value.

like image 871
CWinKY Avatar asked Feb 28 '10 15:02

CWinKY


4 Answers

Assuming you have the following select in the HTML:

<select id="term_id" size="1" name="p_term_in">
    <option value="">Select Another Term
    <option value="201050">Summer 2010
    <option value="201010">Spring 2010
    <option value="200980">Fall 2009
</select>

This should allow you to preselect the third value:

webBrowser1.Document.GetElementById("term_id").SetAttribute("value", "201010");
like image 120
Darin Dimitrov Avatar answered Nov 09 '22 02:11

Darin Dimitrov


var select = webBrowser.Document.GetElementById("ddlProyectos");

mshtml.HTMLSelectElement cbProyectos = select.DomElement as mshtml.HTMLSelectElement;

var total = cbProyectos.length;
for (var i= 0; i < total; i++)
{
    cbProyectos.selectedIndex = i;
    if (cbProyectos.value.Contains("13963"))
    {
        break;
    }

}
//cbProyectos.selectedIndex = 4;
select.InvokeMember("onchange");

select.Children[4].SetAttribute("selected", "selected");

var theElementCollection = webBrowser.Document.GetElementsByTagName("select");
foreach (HtmlElement el in theElementCollection)
{
    if (el.GetAttribute("value").Equals("13963"))
    {
        el.SetAttribute("selected", "selected");
        //el.InvokeMember("click");
    }
}
like image 41
Kiquenet Avatar answered Nov 09 '22 03:11

Kiquenet


You will have to select the selected attribute on the option you want.

Given:

<select id="mySelect">
  <option>1</option>
  <option>2</option>
  <option>3</option>
</select>

The following would selct the third option:

webBrowser1.Document
           .GetElementById("")
           .Children.GetElementsByName("option")[2]
           .SetAttribute("selected", "selected");
like image 5
AxelEckenberger Avatar answered Nov 09 '22 04:11

AxelEckenberger


try this:

add reference to microsoft.mshtml in project --> add reference...

    Dim cboTemp As mshtml.HTMLSelectElement
    cboTemp = WebBrowser1.Document.GetElementById("myselect").DomElement
    cbotemp.selectedindex = 2

having the variable cbotemp set to a select element gives you greater access to the control :)

like image 4
mattb Avatar answered Nov 09 '22 03:11

mattb