Web Development

how to get text in a combobox

22-Jun-05 22:36

This blog[^] presented a way to generate an image of a web page with the use of the IHTMLElementRender interface, and we can customize the sample code to grab the image element on the web form. Instead of using the body element:

IHTMLElement element = (IHTMLElement) document.body;

you can get the img element in the document, then you can draw the contents of the image:

//the image's id is 'image1'.
IHTMLImgElement element = (IHTMLImgElement) document.images.item("image1", "");

BlackDice21-Jun-05 9:58

BlackDice

21-Jun-05 9:58

I'm using a vb6 application to access a web page (hosted by a totally different company) that is seen in the webbrowser control on my form. I can get the value of a combobox, but I'm trying to see how to get the actual text of the item that is displayed. For instance, the combobox may have "minnesota" showing, but the value is 23. I want to know how I can get "Minnesota". I figured I could probably use the elements collection of the combobox and loop through to see if one is selected, but that seems pretty crappy. Anyoneone know how I can get this displayed text instead of the numeric value associated with the selected item?

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www.stillwaterexpress.com

BlackDice

Re: how to get text in a combobox

minhpc_bk22-Jun-05 18:01

Javascript, Remote Window Close, Firefox and IE

22-Jun-05 18:01

Hi there,
I'm not sure if you can do the equivalent in VB 6.

HTMLDocument doc = (HTMLDocument)axWebBrowser1.Document;
HTMLSelectElementClass select = (HTMLSelectElementClass)doc.getElementById("DropDownList1");
IHTMLElementCollection options = (IHTMLElementCollection)select.children;
HTMLOptionElementClass option = (HTMLOptionElementClass)options.item(select.selectedIndex, "");
string text = option.text;

Browser Detect

Rob Tomson21-Jun-05 8:47

Rob Tomson

21-Jun-05 8:47

I've never done javascript before but I need to be able to detect which browser the user is running. I've searched the net and copied some code to do this. It's simple and I understand what it does but I can't get the .html page to display different text per browser. This is what I have in my html:

<br />
<script language="JavaScript" type="text/JavaScript"><br />
	<!--<br />
	if(BrowserDetect()!="Internet Explorer")<br />
	{<br />
		document.write('Other');<br />
	}<br />
	else<br />
	{<br />
		document.write('Internet Explorer');<br />
	}<br />
	// --><br />
</script><br />

and this is the code that I found on the internet:

<br />
function BrowserDetect() {<br />
	var detect = navigator.userAgent.toLowerCase();<br />
	var OS,browser,version,total,thestring;<br />
	<br />
	if (checkIt('konqueror'))<br />
	{<br />
		browser = "Konqueror";<br />
		OS = "Linux";<br />
	}<br />
	else if (checkIt('safari')) browser = "Safari"<br />
	else if (checkIt('omniweb')) browser = "OmniWeb"<br />
	else if (checkIt('opera')) browser = "Opera"<br />
	else if (checkIt('webtv')) browser = "WebTV";<br />
	else if (checkIt('icab')) browser = "iCab"<br />
	else if (checkIt('msie')) browser = "Internet Explorer"<br />
	else if (!checkIt('compatible'))<br />
	{<br />
		browser = "Compatible"<br />
		version = detect.charAt(8);<br />
	}<br />
	else browser = "An unknown browser";<br />
	<br />
	if (!version) version = detect.charAt(place + thestring.length);<br />
	<br />
	if (!OS)<br />
	{<br />
		if (checkIt('linux')) OS = "Linux";<br />
		else if (checkIt('x11')) OS = "Unix";<br />
		else if (checkIt('mac')) OS = "Mac"<br />
		else if (checkIt('win')) OS = "Windows"<br />
		else OS = "an unknown operating system";<br />
	}<br />
	<br />
	document.rs_browser=browser;<br />
	document.rs_OS=OS;<br />
	document.rs_version=version;<br />
	<br />
	return browser;<br />
}<br />
<br />
function checkIt(string) {<br />
	place = detect.indexOf(string) + 1;<br />
	thestring = string;<br />
	return place;<br />
}

When I view my page in either FireFox or IE it doesn't generate any errors but it also doesn't display any sort of text.

Please Help,
Rob Tomson

--
There are 10 kinds of people. Those who understand binary and those who don't.

Re: Browser Detect

NeverHeardOfMe21-Jun-05 13:14

NeverHeardOfMe

21-Jun-05 13:14

Try moving the first two lines of the BrowserDetect function -

var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

- (ie the variable declarations) outside of the function - they are global variables (at least 'detect' and 'thestring' are also used in the checkIt function, so...)

cheers
Phil

Re: Browser Detect

Rob Tomson21-Jun-05 14:03

Rob Tomson

21-Jun-05 14:03

That worked. Thanks! I guess I should keep an eye on what scope the variables are in.

Thanks,
Rob Tomson

--
There are 10 kinds of people. Those who understand binary and those who don't.

Glenn E. Lanier II21-Jun-05 3:41

Glenn E. Lanier II

21-Jun-05 3:41

Hi, I want to open a new browser window, let the user use that window for several minutes, and when they close, I'd like to change the page displayed in the original window.

According to numerous articles found Googling, this should work, but on my WinXP system, using Firefox and IE, I get nothing (when allowing pop-ups, if pop-ups are disabled, IE reports the window is closed, Firefox gives a JS error on checking the window handle). No JS errors, no notifications, nothing. Any pointers would be appreciated.

File 1 contains the code I'm using to open the window, to check for closure, and a form textarea that I update with the time (mostly so I know my timer is firing properly).

---- FILE 1 BEG ----

<br />
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><br />
<html><br />
<head><br />
<title>Opener Page</title><br />
</head><br />
<body><br />
<h1>Opener</h1><br />
<form name="frmOutput"><br />
<textarea name="txtOutput" rows=5 cols=80></textarea><br />
</form><br />
<p><a href="javascript:stopChecking();">Stop Checking</A></p><br />
<script language="Javascript"><br />
	log("Start", true);<br />
<br />
	var remoteWin = window.open("Remote.html", "remote", 'toolbar=no, location=no, directories=no, status=yes, menubar=no, width=795, height=500, resizable=yes, scrollbars=yes, screenx=0, screeny=0, top=0, left=0');<br />
	var timer = null;<br />
<br />
	function checkClosed()<br />
	{<br />
		log("Checking...", false);<br />
   	timer = setTimeout("checkClosed()", 5000);	// Check every 5 seconds.<br />
		if (!remoteWin)<br />
		{<br />
			alert("Window no longer exists");<br />
			stopChecking();<br />
		}<br />
		else if (remoteWin.Closed)<br />
		{<br />
			alert("Window Closed");			<br />
			stopChecking();<br />
		} <br />
	}<br />
<br />
	timer = setTimeout("checkClosed()", 5000);	// Check every 5 seconds.<br />
<br />
<br />
function stopChecking()<br />
{<br />
	log("Stop checking.", false);<br />
	clearTimeout(timer);<br />
}<br />
<br />
<br />
function log(sText, bClearContents)<br />
{<br />
	var d = new Date();<br />
	var s = d.getFullYear() + "." + d.getMonth() + "." + d.getDate() + " " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds() + " " + sText + "\r\n";<br />
	if (bClearContents)<br />
	{<br />
		document.frmOutput.txtOutput.value = s;	<br />
	}<br />
	else<br />
	{<br />
		document.frmOutput.txtOutput.value = s + document.frmOutput.txtOutput.value;<br />
	}<br />
}<br />
</script><br />
<br />
<br />
</body><br />
</html><br />
<br />

---- FILE 1 END ----

File 2 contains some filler text. I can not change the source of this window (when live).
---- FILE 2 BEG (remote.html) ----

<br />
<html><head><title>Remote</title></head><body><h1>Remote Window</h1><p>Closing me should alert the original window or allow the original window to know when I <a href="javascript:window.close();">close</a>.</p></body></html><br />

---- FILE 2 END (remote.html) ----

TIA.

Confused | :confused:

Glenn

Re: Javascript, Remote Window Close, Firefox and IE

J4amieC21-Jun-05 5:01

J4amieC

21-Jun-05 5:01

Dont know too much about FF, but very easy to get working for you in IE:

Main file

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Opener Page</title>
</head>
<body>
<h1>Opener</h1>
<form name="frmOutput">
<textarea name="txtOutput" rows=5 cols=80></textarea>
</form>
<p><a href="javascriptstopChecking();">Stop Checking</A></p>
<script language="Javascript">
log("Start", true);

var remoteWin = window.open("Remote.html", "remote", 'toolbar=no, location=no, directories=no, status=yes, menubar=no, width=795, height=500, resizable=yes, scrollbars=yes, screenx=0, screeny=0, top=0, left=0');
function notifyClosed()
{
log("Window closed",false);
}

function log(sText, bClearContents)
{
var d = new Date();
var s = d.getFullYear() + "." + d.getMonth() + "." + d.getDate() + " " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds() + " " + sText + "\r\n";
if (bClearContents)
{
document.frmOutput.txtOutput.value = s;
}
else
{
document.frmOutput.txtOutput.value = s + document.frmOutput.txtOutput.value;
}
}
</script>

</body>
</html>

remote window

<html>
<head>
<title>Remote</title>
<script language="javascript">
function closeWithNotify()
{
window.opener.notifyClosed();
self.close();
}
</script>
</head>
<body>
<h1>Remote Window</h1>
<p>Closing me should alert the original window or allow the original window to know when I <a href="javascript:closeWithNotify();">close</a></p>
</body>
</html>

Re: Javascript, Remote Window Close, Firefox and IE

Glenn E. Lanier II21-Jun-05 5:17

Glenn E. Lanier II

21-Jun-05 5:17

Thanks, but this requires modifying the remote page, which is not an option. I have no control over the pages being displayed in the remote window.

--G

Re: Javascript, Remote Window Close, Firefox and IE

Mattias Olgerfelt21-Jun-05 6:02

Mattias Olgerfelt

21-Jun-05 6:02

Hi, this will work in IE...
It is not a public standard so I don´t know how it works with FF.

<br />
	var gRemoteWin<br />
	function openWindow() {<br />
		gRemoteWin = window.open("Test2.aspx", "remote");<br />
		timer = setTimeout("checkClosed()", 5000);<br />
	}<br />
	<br />
	function checkClosed() {<br />
		if (!gRemoteWin.closed) {<br />
			alert('exists...' + gRemoteWin);<br />
			timer = setTimeout("checkClosed()", 5000);<br />
		}<br />
		else {<br />
			alert('does not exist ...');<br />
		}<br />
	}<br />

Re: Javascript, Remote Window Close, Firefox and IE

Glenn E. Lanier II21-Jun-05 7:17

Glenn E. Lanier II

21-Jun-05 7:17

It works fine with FireFox. My code would have worked also, if I used remoteWin.closed instead of remoteWin.Closed.

Thanks for pointing that out.

--G

Printing the background color of an HTML page while printing

MaheshKumarV21-Jun-05 0:01

MaheshKumarV

21-Jun-05 0:01

Hi,

I have a web page which has some table rows having background color. When I'm printing the page its not printing. I'm using IE 5.5 as the web browser. When I checked the Internet Options, the checkbox for Print background images and colors are not checked and when I checked this option and printed the page, the background color is printing. I need help for how to set the value of Print background images and colors checkbox to checked when I'm printing. I'm using only Javascript as the scription language and no database is used. If any of you have some ideas please send immediate response.

Web Envrionment

LiYS20-Jun-05 21:42

20-Jun-05 21:42

In what conditions the dialog ask for user name, password and domain will be triggered, after open IE for browing?

minhpc_bk20-Jun-05 23:08

20-Jun-05 23:08

Hi there,
When the anonymous access is disabled for the web application, and the authentication mode is set to Windows, here I assume i'm talking about an ASP.NET application. For more information, you can see IIS Authentication[^]

LiYS20-Jun-05 23:29

20-Jun-05 23:29

Thanks for your reply!;)

Here I am just remake the environment. Our customer's environment.
In our development environment we have the direct access to internet, So there's no problem getting data from internet. But when it comes to our customer's environment it just didn't works, because the the way they gain access to internet. They have domain , they have proxy server, kind of complex environment.
They need to type the user name, password and which domain they're in in order to gain access to internet, but I just don't know how to remake it in our own environment!

minhpc_bk20-Jun-05 23:44

20-Jun-05 23:44

How does your application access the resources on the internet? Does it use the WebRequest to create HttpWebRequest?

LiYS21-Jun-05 0:04

21-Jun-05 0:04

through the
CInternetSession
CHttPFile

minhpc_bk21-Jun-05 0:14

21-Jun-05 0:14

I'm not familiar with the MFC stuff, but in this case you need to specify the proxy server before accessing the resources on the internet. You may look at the parameters in the object constructor, or you can post this question in the C++ forum.

LiYS21-Jun-05 0:21

21-Jun-05 0:21

Actually the implement is not urgent, What I need the most is to mimic the environment!That is when everything set up, once I open IE for browing, I'll get a dialog box asking for user name, password and which domain you're in!

minhpc_bk21-Jun-05 0:32

21-Jun-05 0:32

OK, you might want to check out the ISA Server:
http://www.microsoft.com/isaserver/default.mspx[^]
http://www.isaserver.org/[^]

LiYS21-Jun-05 0:42

21-Jun-05 0:42

Thanks!

fakefur29-Jun-05 14:22

fakefur

29-Jun-05 14:22

There is a setting in the Http stuff you are using to tell it to use the existing IE settings when connecting. That would do the trick.
Wink | ;)

Matt Gerrans23-Jun-05 10:14

Matt Gerrans

23-Jun-05 10:14

Hey minhpc_bk,

If the user is already logged on to the network and authenticated, is there some way to set it up so that Windows authentication doesn't pop up the login dialog?

Matt Gerrans

minhpc_bk23-Jun-05 17:47