Here is my app status:
Purpose - download multiple list files from internet
Approach - created a simple "download form". After a while, I just needed more forms because I had more than one list of files to download. Just solved that by adding a MDIform to my project, add a button to create another "download form" instance and voilà. Apparently, my problem was solved. But no :(
When I press my "download" button in my form-instance3, the other form instances (2 and 1) hangs on downloading the contents (I get a timeout sometimes) until the form-instance3 terminates all the downloads and so on, for all the other forms. So, even though I know my app is not multi-threaded, the multiple instances of the same form are in conflict (Inet component, presumably) and I can't download multiple files at the same time.
Inet and my download function are defined in the form.
What can I do to solve this? how can I download multiple files at the same time?
edit:
I'm trying to use the "wqw" suggestion, but I'm facing some problems:
In the download_form, I have a MSHFlexgrid, with 2 columns: one with the URL and the other with the file destiny. I was iterating throw all rows to download the files and save them. With the approach suggested by "wqw", how can I distinguish each download so that I can save it with the properly name indicated in the grid?
What do you use for the actual http download? I would try Simple Asynchronous Downloads and forget about the MDIForm. Really!
VB6, on its own, is single threaded. So breaking out downloading to different forms won't help you.
What I've used in the past is the Timer object in conjunction with an ActiveX EXE. This approach will give you an ability to localize all the downloading logic in one place, control it like you control a regular object and have it run in a separate EXE, thus by default making it multi-threaded.
So the way this works is like so:
You call the Download method on the ActiveX EXE object
In the download method, you instantiate the Timer and have it kick off almost immediately.
You get out of the Download method, thus giving control back to the entity that called it.
Then you communicate back to the main app via Events (e.g. DownloadProgress or DownloadComplete, etc...)
Related
I created a login sequence and my selectors for the input email, password, click login and element exists are valid. But only when I have the Internet Explorer page open on the website I'm working with.
I did that sequence again, and I ran it, initially it worked but when I ran the hole project it broke again, I tried "repair" and "indicate", I tried to eliminate the title but nothing is working.
As far as I can see, you are using selector attribute:
"title=ACME System 1 - Dashboard"
Try using a wildcard: title='ACME System 1*', so it can work when you leave the dashboard.
This worked for me when I took those UiPath Academy courses.
In order to automate tasks within a browser with UiPath, the browser must be open. There is an activity called Open Browser that's included in the default activities for every project. You need to add this activity to the beginning of your sequence and pass in the appropriate parameters, (ie. URL, browser type) you can then pass the outputted browser variable to an attach browser sequence and execute your browser automation acivities within that.
Browser activity sceenshot
In addition, the selector that you have shared does not look like a stable selector. There may be other 'H1' elements on the screen that will cause your automation to fail. I would use the UI explorer to help you build a better, more stable selector.
Did you initially use IE to indicate screen elements and then changed the BrowserType property to use a different browser? Please share the sequence to suggest you a fix for your issue.
I would also suggest you to modify the selector to 'title='ACME System *'.
In order for selector to work the application needs to be open and the desired element needs to be available. So when you close the browser the selector disappears.
You may consider swithching to 'Modern Design Experience' and use 'Use Application/Browser' scope to make this more intuitive, and it will also automatically open the browser for you if it is closed.
I'm creating an installer at work that must open a file browser. There is no file browser in wix, so I built a custom vbscript action that uses the Shell.BrowseForFolder method. It's working fine, but the file dialog shows up behind the main wix window. Does anyone know a wix/vbscript approach I could take to solve this problem?
Locate the HWND for the MSI UI and pass this into Shell.BrowseForFolder. I see a few example solutions that use FindWindow("MsiDialogCloseClass", vbNullString). Be careful about launching UI from a custom action: you need to consider silent installs/repair/uninstall, etc to make sure you get it right in all cases.
It looks like you're trying to allow the user to pick a directory. MSI has native support for this. I reccomend you use that. For an example see http://wix.codeplex.com/SourceControl/latest#src/ext/UIExtension/wixlib/BrowseDlg.wxs.
I am developing firefox extension.
Problem is that when i open second window (Ctrl + N) my extension has new state for new opened window.
If I reacts or changes on second window it never affect on first window or vice versa.
Ex
Installed extension on Firefox
first window opened. My extension proper functioning, change state, login, view data etc
then opened second. My extension goes new state I cant get previous states (first window states).
How can maintain same state between first and second or other firefox opened windows.?
Am I correct to assume you're developing a XUL overlay add-on, and not an SDK add-on?
One way to share state between windows is to use Javascript code modules. A code module will only be loaded once (unless explicitly unloaded) and therefore will expose the same data to multiple windows. Be sure to read the "Sharing objects using code modules"., However, please note that therefore when closing a window, any state associated with it and stored within the code module must be cleaned up, or would leak otherwise.
If you're using the SDK instead, your main.js module is already the equivalent of a code module. Content scripts may use message passing to store and retrieve state from your module.
Due to the recently added "feature" in IE8 where new windows are automatically associated with a single session, some of our code is behaving erratically.
This is because a separate app would launch a new IE window when it was activated, and once the user was finished, close the window. This worked fine in IE7 because the session information in the windows stayed separate. However in IE8, since the session is shared among IE windows, we find that the "pop up" app would corrupt the session on the first app.
I have read about the nomerge switch, so that is a workaround, but I was wondering if there was a way of working the solution into the "CreateObject" of vbscript; i.e:
Dim ieWin As Object
Set ieWin = CreateObject("InternetExplorer.Application")
Is there a way of sending parameters when calling the CreateObject function?
No, there's no way to use COM to create an IE instance that specifies this behavior (or any of the others, e.g. InPrivate, No Add-ons, etc). The only thing you can do is create an automation instance that defaults to MediumIL using the CLSID provided for that purpose. http://blogs.msdn.com/b/ieinternals/archive/2011/08/03/internet-explorer-automation-protected-mode-lcie-default-integrity-level-medium.aspx
If you have control over the web application you are loading with your IE window you can set it's session to "cookieless" (http://msdn.microsoft.com/en-us/library/aa479314.aspx) which will avoid the issues you're having with multiple instances.
The solution we ended up going with, although it's more a work around than anything else - was assigning a new url to the popped up window.
Previously, it worked as follows:
Call centre agents would be using our internal app for other duties
e.g. "http://internalsite/somepage.faces" on a day to day basis.
When they got a phone call, a third party app would fire up
"http://internalsite/customerdetails.faces". This caused the issues mentioned above.
The solution we went with:
We assigned "http://internalsite/customerdetails.faces" it's own url e.g."http://customerdetailminisite/customer.faces".
This way the call center agent could keep their main window open for other stuff and still be able to handle calls when they came in.
We have a legacy VB6 application which has worked just fine on Windows XP Professional SP 3 until just recently when we added an IE frame control so that we could display static local HTML files on a form. And, it works fine until I go to close the application. And, then it reports the following error message (consistently):
Faulting module ntdll.dll, version 5.1.2600.5755, stamp 49901d48
Here's the reference in the Visual Basic project file:
Object={EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}#1.1#0; ieframe.dll
And we use it by performing the following actions:
Development machine is running Win7 + Vb6 IDE.
Add a component reference to the "Microsoft Internet Controls" located at C:\Windows\SysWow64\ieframe.dll
Place a control on the form at design time.
Show that form modally by calling Form.Show vbModal The error happens when I use the default form instance frmMyForm.Show vbModal as well as when I use a local instance Dim MyForm as New frmMyFormMyForm.Show vbModal
Call WebBrowser.Navigate "staticPage.html"
When the user presses a button, the button click event returns the user choice and the form is disposed of.
Exit the application -- Here's where I get the error.
I've been looking all over the web, and haven't been able to find a whole lot of people still trying to use VB6 in this way. So, I'm wondering if someone might be able to help me on stackoverflow. Any help is much appreciated!
[Update] And, the plot thickens. I made a sample application with just that web component in order to make sure that it was causing the error. But, I didn’t experience the error when it closed like I was when exiting our existing/legacy vb6 application. I'll do a bit more investigating.
A follow up to this in case any runs into the same issue (the original poster and I were coworkers at the time)...
The application was using the VBCorLib library, and some of its string manipulation classes utilized direct memory access incorrectly. Read more at this VBCorLib forum post.
It turns out that the issue was that I was trying to delete the temporary file that the browser had loaded. It works now that I've moved that delete file code to the form unload event.