I created one web page, its in there one grid view control(see attached image) in that grid view one link button(Download) . if i click download button file will download . downloading time is little far so i need to show progressing (like still downloading ...) .
I used update panel, update progress controls its not working for me, and i used image control also that one also doesn't help me.
Give me some tips to show progressing msg.. please .
Here is one of the options you can take:
write ashx generic handler that will monitor byte to byte procesing
Inside this handler save current procesing position. Call this ashx to download file.
write server side function that will return current procesing position saved by the ashx handler
This function must be awailable to javascript
on client side just call this javascript function that calls server side function
This is the whole concept. Please let me know if I need to explain you something in details.
http://www.dreamincode.net/forums/topic/115491-download-file-asynchronously-with-progressbar/
Related
So I would like to be able to have a print button for entries in our database so users can print an entry via a print friendly "form".
My thought was to create a separate page, add labels and have those labels pull the relevant information.
I know I can add the open widget information via this code:
app.datasources.ModelName.selectKey(widget.datasource.item._key);
app.showPage(app.pages.TestPrint);
But I'm running into a few problems:
I can't get the page to open in a new window. Is this possible?
window.open(app.pages.TestPrint);
Just gives me a blank page. Does the browser lose the widget source once the new window opens?
I can't get the print option (either onClick or onDataLoad) to print JUST the image (or widget). I run
window.print();
And it includes headers + scroll bars. Do I need to be running a client side script instead?
Any help would be appreciated. Thank you!
To get exactly what you'd want you'd have to do a lot of work.
Here is my suggested, simpler answer:
Don't open up a new tab. If you use showPage like you mention, and provide a "back" button on the page to go back to where you were, you'll get pretty much everything you need. If you don't want the back to show up when you print, then you can setVisibility(false) on the button before you print, then print, then setVisibility(true).
I'll give a quick summary of how you could do this with a new tab, but it's pretty involved so I can't go into details without trying it myself. The basic idea, is you want to open the page with a full URL, just like a user was navigating to it.
You can use #TestPrint to indicate which page you want to load. You also need the URL of your application, which as far as I can remember is only available in a server-side script using the Apps Script method: ScriptApp.getService().getUrl(). On top of this, you'll probably need to pass in the key so that your page knows what data to load.
So given this, you need to assemble a url by calling a server script, then appending the key property to it. In the end you want a url something like:
https://www.script.google.com/yourappaddress#TestPage?key=keyOfYourModel.
Then on TestPage you need to read the key, and load data for that key. (You can read the key using google.script.url).
Alternatively, I think there are some tricks you can play by opening a blank window and then writing directly to its DOM, but I've never tried that, and since Apps Script runs inside an iframe I'm not sure if it's possible. If I get a chance I'll play with it and update this answer, but for your own reference you could look here: create html page and print to new tab in javascript
I'm imagining something like that, except that your page an write it's html content. Something like:
var winPrint = window.open('', '_blank', 'left=0,top=0,width=800,height=600,toolbar=0,scrollbars=0,status=0');
winPrint.document.write(app.pages.TestPage.getElement().innerHTML);
winPrint.document.close();
winPrint.focus();
winPrint.print();
winPrint.close();
Hope one of those three options helps :)
So here is what I ended up doing. It isn't elegant, but it works.
I added a Print Button to a Page Fragment that pops up when a user edits a database entry.
Database Edit Button code:
app.datasources.ModelName.selectKey(widget.datasource.item._key);
app.showDialog(app.pageFragments.FragmentName);
That Print Button goes to a different (full) Page and closes the Fragment.
Print Button Code:
app.datasources.ModelName.selectKey(widget.datasource.item._key);
app.showPage(app.pages.ModelName_Print);
app.closeDialog();
I made sure to make the new Print Page was small enough so that Chrome fits it properly into a 8.5 x 11" page (728x975).
I then created a Panel that fills the page and populated the page with Labels
#datasource.item.FieldName
I then put the following into the onDataLoad for the Panel
window.print();
So now when the user presses the Print Button in the Fragment they are taken to this new page and after the data loads they automatically get a print dialog.
The only downside is that after printing the user has to use a back button I added to return to the database page.
1.
As far as I know, you cannot combine window.open with app.pages.*, because
window.open would require url parameter at least, while app.pages.* is essentially an internal routing mechanism provided by App Maker, and it returns page object back, suitable for for switching between pages, or opening dialogs.
2.
You would probably need to style your page first, so like it includes things you would like to have printed out. To do so please use #media print
ex: We have a button on the page and would like to hide it from print page
#media print {
.app-NewPage-Button1 {
display : none;
}
}
Hope it helps.
1. Here is how it is done, in a pop up window, without messing up the current page (client script):
function print(widget, title){
var content=widget.getElement().innerHTML;
var win = window.open('', 'printWindow', 'height=600,width=800');
win.document.write('<head><title>'+title+'/title></head>');
win.document.write('<body>'+content+'</body>');
win.document.close();
win.focus();
win.print();
win.close();
}
and the onclick handler for the button is:
print(widget.root.descendants.PageFragment1, 'test');
In this example, PageFragment1 is a page fragment on the current page, hidden by adding a style with namehidden with definition .hidden{display:none;} (this is different than visible which in App Maker seems to remove the item from the DOM). Works perfectly...
2. You cannot open pages from the app in another tab. In principle something like this would do it:
var w=window.parent.parent;
w.open(w.location.protocol+'//'+w.location.host+w.location.pathname+'#PrintPage', '_blank');
But since the app is running in frame nested two deep from the launching page, and with a different origin, you will not be able to access the url that you need (the above code results in a cross origin frame access error). So you would have to hard code the URL, which changes at deployment, so it gets ugly very fast. Not that you want to anyway, the load time of an app should discourage you from wanting to do that anyway.
I am trying to to implement a button in LuCI which, when clicked , runs a shell script in the backend. This is the model code for this:
field_var_36 = section_var_7:option(Button,"buttonkk36",translate("ButtonKK"))
field_var_36.inputstyle = "apply"
field_var_36.rmempty = true
function field_var_36.write(self, section)
luci.sys.call('echo "ABCDEFG123" >/dev/null')
end
Though this is working it has some unwanted side-effects. All the unsaved modifications in the page are getting saved and I get a "n unsaved changes" notifications at the top. My guess is the the button if of type "submit" and all the fields inside the html "form" are getting "sumbitted". I dont want this to happen. The button needs to be standalone. Can this be done?
One other option I tried was using a template with button implemented in html. But I dont know how to connect this to the backend script. Is there a javascript API function in LuCI which takes the script as argument?
Thanks in advance for any help.
I did that using a view template.
You must set up an "entry(...)" in an "index()" function in the "controller/" directory.
The entry associates a path (last part of the LuCI URL's) with either a template view, cbi or LUA function, which is just what you want.
Pay attention that when you change by hand a controller file on the target openwrt device, you must delete /tmp/luci-indexcache so that the LuCI dispatcher does not use the older version.
Then in the template you can use "luci.dispatcher.build_url()" to create the URL that will make the controller call the function, and you put this as the target URL for your button (through either or or onClick="document.location=..."> and so on)
I have my views setup to pre-compile, and therefore, at runtime if I were to try and read the view file (e.g. "~\Views\User\Report.cshtml") I'd get the following dummy-text, as opposed to the contents of my view:
This is a marker file generated by the precompilation tool, and should not be deleted!
Problem is, I'd like to re-use the cshtml view, and rerender it another way at runtime, but I cannot due to the above restriction.
The scenario:
An admin can see a list of users in a /User/Report route. It outputs some HTML that has a list of all users, and their information in an HTML table. These admins frequently want to download this html file (styles and all) to email it as an attachment to someone else. They could, of course, go to File->Save in their browser, but I wanted to simplify that action by adding a link to the page "Download this report as HTML" that would simply return the same page's content, as a forced-downloaded HTML file (2012-07-11_UserReport.html).
So, what I tried to do was re-render the view by running the Report.cshtml file's contents through ASP.NET's File() method, like this:
var html = System.IO.File.ReadAllText(Server.MapPath(#"~\Views\User\Report.cshtml"));
var bytes = System.Text.Encoding.UTF8.GetBytes(html);
return File(bytes,"text/html",string.Format("{0}_UserReport.html",DateTime.Now.ToString("yyyy-MM-dd")));
But, like I mentioned earlier, the file comes back as the dummy-text, not the view, since I'm pre-compiling the views.
I understand that to get around the pre-compilition, I could simply copy the Report.cshtml file, and rename it to Report.uncompiled (adding it to the csproj as of course) and read the contents of it, that's an ok solution, but not good enough.
What I would really like to know is: Is there a way I can get at that pre-compiled content? I looked in the Assembly's embedded resources, and they are not there. Any ideas/suggestions?
Updated with current solution
So after searching around some more, and trying to use WebClient/WebRequest to just make a request to the route's URL and send the response back down to the user to download while at the same time trying to pass the user's .ASPXAUTH cookie (that made WebClient/WebRequest time out for some reason? I even tried to create a new ticket, same result) I ended up going with what I didn't want to do: duplicate the view file, and rename it so it's not precompiled.
The view file (Report.uncompiled) had to be modified a bit as it was, and then I ran it through RazorEngine's Razor.Parse method and got what I needed, but it just felt hackey. Would still like a way to access the view file (Report.cshtml) even after it's compiled.
var templateHtml = Razor.Parse(System.IO.File.ReadAllText(Server.MapPath(#"~\Views\User\Report.uncompiled")),model);
var bytes = System.Text.Encoding.UTF8.GetBytes(templateHtml);
return File(bytes, "text/html", string.Format("{0}_UserReport.html", DateTime.Now.ToString("yyyy-MM-dd")));
Would the WebClient class work?
using System.Net;
using (WebClient client = new WebClient ())
{
client.DownloadFile("http://yourwebsite.com/test.html", #"C:\directory.html");
// If you just want access to the html, see below
string html = client.DownloadString("http://yourwebsite.com/test.html");
}
Just have this fire whenever your user clicks a button and then it will save the current content of the page wherever? You could probably also have a directory selector and feed whatever they select into that second parameter.
It essentially does the same thing as the browser save as, if that's what you want.
I need a view to refresh automatically every 20 seconds, and have added the following code to the view header via the views GUI - with no success. The code (or portions of it) are simply displayed on the view and no updating is performed. I've tried omitting both and just the ending ?php statement. If someone can tell me the proper code to use, or a better approach at updating the view automatically, I'd be very appreciative. Thanks.
print "<meta http-equiv=\"refresh\" content = \"20\" />;
There are a few modules that can take care of this for you via AJAX without refreshing the page.
This should take care of everything for you: http://drupal.org/project/ajax_views_refresh
Be sure to get the main AJAX module as the base.
A more complex one, if you want to code a bit: http://drupal.org/project/live_update
If you want to just refresh nodes and the view is on them you can do the old school refresh with this... http://drupal.org/project/refresh
Your code isn't coming through, but if it's php code make sure that the input format for the view header is set to "PHP Code"
Read the fine print under the text area. Sometimes PHP Code format doesn't require <?php tags. Some modules implement this differently.
Use drupal_set_html_head
For example:
drupal_set_html_head('<meta http-equiv="refresh" content = "20" />');
Is it possible to get up to date contents from an iframe? Lemme explain the problem I am encountering:
function modify_iframe(url){
my_iframe.src = url;
iframe_content = my_iframe.contentDocument;
//....code to modify the content goes here,,,,
}
The first time I call modify_iframe(url_a) it sets the source as I would expect but the iframe_content is a blank document.
The second time I run modify_iframe(url_b) it sets the source as I would expect but the iframe_content is actually that of url_a.
So it seems that contentDocument is not returning the contents of the new source, but rather the source before it was changed. Anyone know why that is and if there is a way around it?
Additional background info: We have been adding an event listener to fire off on the iframe load event which occurs when the src is changed. This was giving us the contents when calling contentDocument; however, users were being prompted that our site had unauthenticated content even though we use https for everything including the src. After removing the event listener we no longer receive the unauthenticated content warning, but the contentDocument of our iframe is always one step behind as described above.
Um, first try using a setTimeout to wait for the page content to load. But that's not a nice solution. What browser are you testing on? If it were me I would try to get to the bottom of the "unauthenticated content" error prompt.