Getting the selected text of WebBrowser control dropdown box.

[Frank Rizzo]

I have a WebBrowser control on a .net 2.0 winforms app. I load up a
page and want to get the selected entry of a dropdown.

I can get the element:

HtmlElement stationList = browser.Documen t.GetElementByI d("dropdownFacI D");

How do I know get the selected entry (the text, not the id).

Thanks.

[Mr. Arnold]

"Frank Rizzo" <no**@none.comw rote in message
news:uX******** ******@TK2MSFTN GP06.phx.gbl...

>I have a WebBrowser control on a .net 2.0 winforms app. I load up a page
and want to get the selected entry of a dropdown.

I can get the element:

HtmlElement stationList =
browser.Documen t.GetElementByI d("dropdownFacI D");

How do I know get the selected entry (the text, not the id).

browser.Documen t.GetElementByI d("dropdownFacI D").Value;

[Frank Rizzo]

Mr. Arnold wrote:

>
"Frank Rizzo" <no**@none.comw rote in message
news:uX******** ******@TK2MSFTN GP06.phx.gbl...

>I have a WebBrowser control on a .net 2.0 winforms app. I load up a
page and want to get the selected entry of a dropdown.

I can get the element:

HtmlElement stationList =
browser.Docume nt.GetElementBy Id("dropdownFac ID");

How do I know get the selected entry (the text, not the id).

browser.Documen t.GetElementByI d("dropdownFacI D").Value;

There is no .Value on the return of the .GetElementById method.

[Mr. Arnold]

"Frank Rizzo" <no**@none.comw rote in message
news:O1******** ******@TK2MSFTN GP04.phx.gbl...

Mr. Arnold wrote:

>>
"Frank Rizzo" <no**@none.comw rote in message
news:uX******* *******@TK2MSFT NGP06.phx.gbl.. .

>>I have a WebBrowser control on a .net 2.0 winforms app. I load up a
page and want to get the selected entry of a dropdown.

I can get the element:

HtmlElement stationList =
browser.Docum ent.GetElementB yId("dropdownFa cID");

How do I know get the selected entry (the text, not the id).

browser.Docume nt.GetElementBy Id("dropdownFac ID").Value;

There is no .Value on the return of the .GetElementById method.

I don't know about this Net method, but it's making a call to JavaScript.

Below is JavaScript

var myTextField = document.getEle mentById('myTex t');
if(myTextField. value != "")
alert("You entered: " + myTextField.val ue)
else
alert("Would you please enter some text?")}You can do this kind of JavaScript statement.

if (document.getEl ementById('myTe xt').value != "")

Maybe, you can post to a .NET Web solution specific NG to get more help.

[Frank Rizzo]

Mr. Arnold wrote:

>
"Frank Rizzo" <no**@none.comw rote in message
news:O1******** ******@TK2MSFTN GP04.phx.gbl...

>Mr. Arnold wrote:

>>>
"Frank Rizzo" <no**@none.comw rote in message
news:uX****** ********@TK2MSF TNGP06.phx.gbl. ..
I have a WebBrowser control on a .net 2.0 winforms app. I load up a
page and want to get the selected entry of a dropdown.

I can get the element:

HtmlElemen t stationList =
browser.Docu ment.GetElement ById("dropdownF acID");

How do I know get the selected entry (the text, not the id).

browser.Docum ent.GetElementB yId("dropdownFa cID").Value;

There is no .Value on the return of the .GetElementById method.

I don't know about this Net method, but it's making a call to JavaScript.

Below is JavaScript

var myTextField = document.getEle mentById('myTex t');
if(myTextField. value != "")
alert("You entered: " + myTextField.val ue)
else
alert("Would you please enter some text?")}You can do this kind
of JavaScript statement.

if (document.getEl ementById('myTe xt').value != "")

Maybe, you can post to a .NET Web solution specific NG to get more help.

It's a winforms application and a WinForms WebBrowser control.

[Mr. Arnold]

"Frank Rizzo" <no**@none.comw rote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

Mr. Arnold wrote:

>>
"Frank Rizzo" <no**@none.comw rote in message
news:O1******* *******@TK2MSFT NGP04.phx.gbl.. .

>>Mr. Arnold wrote:

"Frank Rizzo" <no**@none.comw rote in message
news:uX***** *********@TK2MS FTNGP06.phx.gbl ...
I have a WebBrowser control on a .net 2.0 winforms app. I load up a
page and want to get the selected entry of a dropdown.
>
I can get the element:
>
HtmlEleme nt stationList =
browser.Doc ument.GetElemen tById("dropdown FacID");
>
How do I know get the selected entry (the text, not the id).
>
browser.Docu ment.GetElement ById("dropdownF acID").Value;

There is no .Value on the return of the .GetElementById method.

I don't know about this Net method, but it's making a call to JavaScript.

Below is JavaScript

var myTextField = document.getEle mentById('myTex t');
if(myTextField. value != "")
alert("You entered: " + myTextField.val ue)
else
alert("Would you please enter some text?")}You can do this kind
of JavaScript statement.

if (document.getEl ementById('myTe xt').value != "")

Maybe, you can post to a .NET Web solution specific NG to get more help.

It's a winforms application and a WinForms WebBrowser control.

It's still making a call to JavaScript I believe. That getElementById
command is a JavaScript command and not a .NET command.

Even though it's a Winform using a WebBrowser control, who .NET is going to
make the call to do it is ASPscript or JavaScript, which are scripting
languages that work with a Web browser.

[Mr. Arnold]

>

It's a winforms application and a WinForms WebBrowser control.

Don't hold me to it, but the link may hold your solution by using the
InnerText to get the Value.

http://www.codeproject.com/aspnet/Prevent_attacks.asp

[Walter Wang [MSFT]]

Hi Frank,

Please try this code:

HtmlElement element = webBrowser1.Doc ument.GetElemen tById("Select1" );
object objElement = element.DomElem ent;
object objSelectedInde x =
objElement.GetT ype().InvokeMem ber("selectedIn dex",
BindingFlags.Ge tProperty, null, objElement, null);
int selectedIndex = (int) objSelectedInde x;
if (selectedIndex != -1)
{
MessageBox.Show (element.Childr en[selectedIndex].InnerText);
}
Hope this helps.
Sincerely,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

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[Frank Rizzo]

Walter Wang [MSFT] wrote:

Hi Frank,

Please try this code:

HtmlElement element = webBrowser1.Doc ument.GetElemen tById("Select1" );
object objElement = element.DomElem ent;
object objSelectedInde x =
objElement.GetT ype().InvokeMem ber("selectedIn dex",
BindingFlags.Ge tProperty, null, objElement, null);
int selectedIndex = (int) objSelectedInde x;
if (selectedIndex != -1)
{
MessageBox.Show (element.Childr en[selectedIndex].InnerText);
}

Walter,

Thanks for the code, but it didn't work out, because the dropdown has
OPTGROUPs ( http://www.w3schools.com/tags/tag_optgroup.asp ). This is
something I haven't seen up to now, but the code above just does not
work when an optgroup is present. The messagebox shows the contents of
the entire optgroup.

I actually resolved the problem as follows:

HtmlElement element = webBrowser1.Doc ument.GetElemen tById("Select1" )
string selectedValue = element.GetAttr ibute("value");
string elementSource = element.OuterHt ml;

And then running regex
(?<=<OPTION value={0} selected>).*?(? =</OPTION>)
against the elementSource.

It's hacky but it works. If you have the code that works for an
optgroup, that would be great.

Regards

>

Hope this helps.
Sincerely,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

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ications. If you are using Outlook Express, please make sure you clear the
check box "Tools/Options/Read: Get 300 headers at a time" to see your reply
promptly.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
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[Walter Wang [MSFT]]

Hi Frank,

Thanks for your update and sorry for my ignorance of the OPTGROUP element.

Please try following code, hopefully it should work for situations with or
without OPTGROUP:

HtmlElement element = webBrowser1.Doc ument.GetElemen tById("Select1" );
foreach(HtmlEle ment child in element.All)
{
if (child.GetAttri bute("tagName") == "OPTION")
{
if (child.GetAttri bute("selected" ) == "True")
{
MessageBox.Show (child.GetAttri bute("text"));
break;
}
}
}
Regards,
Walter Wang (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

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