I am using the .NET WebBrowser control to automate some web tasks, however now and again the website I am visiting will produce a dialogue box with a YES/NO button that I need to press.
The dialogue is popped up using a Javascript modal window. I need the WebBrowser to detect a Javascript modal popup, get the source of the popup to define the response to give, and then click one of the buttons.
Can this be achieved?
I've encountered a similar situation
But in my case it is just a simple confirm dialog so I simply skip it by removing the confirm javascript command from the html element.
Here's the javascript code that invoke the dialog
confirm('Comfirm to kill');
here's the full html tag of the button that invoke the dialog
<a id="inputID" onclick="return confirm('Comfirm to kill.');" href="javascript:__doPostBack('ctl00$ContentMainContent$gvOnlineUser$ctl02$btnAction','')">
And here I remove the js to call the function
HtmlElement elementButton = doc.GetElementById("inputID");
elementButton.SetAttribute("onclick", "return true;");
elementButton.InvokeMember("Click");
That should skip the confirmation dialog part
I'm not sure it would work in your case though
Hope this help anyway
Related
I've been searching for an answer to this but haven't found what I'm looking for yet.
When I load into the page there is a check run one the server side. Depending on the output of this (bool), I wish to display a "yes no" confirm box to execute another piece of server side code.
I have found ways to do this easily enough on a button click but I'm trying to avoid adding a hidden button and simulating a click.
MessageBox.Show isn't an option in this case as I get the following error:
Showing a modal dialog box or form when the application is not running
in UserInteractive mode is not a valid operation
Is there any way to achieve this without simulating a button click?
Cheers,
Spitfire2k6
In web app (including the one created with ASP.NET) you can use Javascript confirmation dialog box: window.confirm("Request to Confirm Text");, and process User's response like in the following sample code snippet:
var _response = confirm("Please Confirm");
if (_response == true) {//Do Action1}
else {//Do Action1}
Pertinent to your case, you can use for e.g. page <body onload> event. Hope this may help.
I realised I was going about this all wrong.
The check is now done on page load, depending on the result I'm showing an asp panel with 2 asp buttons as a confirm box.
Thanks for all guidance.
Cheers,
Spitfire2k6
I have an application that uses WebBrowser control to navigate from page to page, on some pages I get a leaving popup asking me if that's what I want to do.. this stops the whole further execution until I press "Leave" or "Stay".. How can I disable them?
What I've tried so far were these actions:
a) setting window.onbeforeunload = null;
b) setting alert, confirm, prompt to an empty function
c) settin suppressErrorMessages to true
but even so, I still get the nasty message in the end.
I mostly relied on this answer:
How to update DOM content inside WebBrowser Control in C#?
But so far without a success.
The alerts seem to be jQuery alerts because they have custom texts (instead of OK Cancel, they have Stay Leave)..
Any help hugely appreciated!!
The webbrowser control uses IE internally and IE has a prompt if you've filled out a form asking you if you really want to leave the page (thereby losing the content you've filled out) perhaps that's what you're seeing?
i'm just shooting from the hip here but you could try clearing all inputs before navigating.
I have an updatepanel,a modal popup extender inside that and an image button to open the pop up(it has not any click event). The 'div' for the modal pop up is outside the updatepanel. In the modal pop up the records come in a table with a link in each table row.When the link is clicked,a javascript function causes a hidden control to postback and fetch values from database.First time it is working fine,but next time the image button(TargetControlID for modal pop up extender) does not work and it is causing a postback and loading the page.Help plz...
Thanks in advance.
Mohak
Are you using myLink.ClientID or did you hardcoded the ID of the link in the Javascript function?
The ID of the link is probably changed when doing the first postback, the second time ASP.NET has generated a new ID (not visible in the HTML because of the AJAX-request) for your link and this doesn't match anymore with the ID in your Javascript function.
The solution would be to use myLink.ClientID
I have the following message box in c# on my asp.net page inside the btnSubmit_Click event.
It tends to popup sometimes and not popup sometimes. Any reasons as to why it is not consistent?
ClientScript.RegisterStartupScript(
GetType(),
"alert",
"alert('An email has been sent to Customer Service');",
true);
I guess that this will depend on the text you are putting inside the alert. In the example you provided the text is hardcoded but I suppose that in your real application this text is dynamic and might contain characters that break javascript such as '. Try using FireBug to see if there are some javascript errors when it doesn't work.
Have You checked, if the alert('An email has been sent to Customer Service'); line is in the HTML Source after you clicked the Button and the message did NOT appear?
If it isn't in the HTML, check:
with the Debugger if your
codeblock is hit
are you maybe redirecting the response?
try these popups instead
type java directly in the visualstudio GUI
On a button go to the "OnClientClick" property (its not into events*) over there type:
return confirm('are you sure?')
it will put a dialog with cancel ok buttons transparent over current page if cancel is pressed no postback will ocure. However if you want only ok button type:
alert ('i told you so')
The events like onclick work server side they execute your code, while OnClientClick runs in the browser side. the come most close to a basic dialog
as this codes is so small it should work unless they have really strange browser clients
Is it at all possible to disable the "The webpage you are viewing is trying to close the window. Do you want to close it?"?
I understand that this is the product of years of virus, and malicious script activity, but in legit app code, (ASP.NET), is there any way to like "register" your app as an APP, or flags you can pass to an IE Popup so that it will not display this when it closes?
The code I'm using is done from within the C# code behind:
ClientScript.RegisterClientScriptBlock(GetType(), "save", Utils.MakeScriptBlock("window.close();"));
The Utils.MakeScriptBlock is just a function that does what you might expect. It 'injects' a <script...> tag with the code in it...
It's probably not possible to get around this, or else, all the script kiddies would just use that trick, but I thought I'd ask, as I can't be the ONLY one using simple IE "popups" as (pseudo)modal dialog boxes.
This code happens in my ButtonSave_Click() routine, after everything has passed validation, etc...
** EDIT **
Just for reference, here is the code that OPENS the popup, when the ADD button is clicked:
This is in Page_Init()...
ButtonAdd.Attributes.Add("onclick", "window.open('Add.aspx', 'ADD_WINDOW', 'scrollbars=no,width=550,height=550,location=no,menubar=no,resizable=yes,directories=no,status=no,toolbar=no'); return false;");
You can close the window without the popup if the window was opened by your script. Does that help?
Edit:
You're already opening the window with script. Change your client script to call self.close().
ClientScript.RegisterClientScriptBlock(GetType(), "save", Utils.MakeScriptBlock("self.close();"));
I believe not. As you state to help prevent malware.
In the end the browser does not know that you are not evil. See RFC 3514 for a similar idea.
I highly doubt it's possible on your end - sounds like something a user would have to specifically disable in their IE settings.
If the user opened the browser window, you can't close it; but if the window was opened via script, you can. Sounds like you just need an initial page that the user starts at with a "click here to begin" link, from which you open a new window for the main portion of the site; when they're all done, close the popup and they're left with their initial browser window with the "click here to begin" message.
Bizarre, but I've found that
<script type="text/javascript">
function closeWindow()
{
window.close();
return false;
}
</script>
and then calling
return closeWindow();
usually gets around this.