I have this linkbutton with post-back disabled ... I should have done it with an html control but just did it that way .. It is toggling a language bar on top (marara.com.tr - language link)
It needs to be clicked twice in order to get the div to fade-in. I can correct the problem but just want to know why it behaves like that. .. in the first click it adds a # sign to the address bar then on the second click it does what it is supposed to.. any leads?
thanx in advance
Emre
I had a similar problem. It depends on the browser you are using (This occurred when I was using Firefox but not when I was testing in IE6). It seemed like the browser looks at the URL and sees that nothing has changed (except the #...) so it doesn't reload the URL, causing the #... not to register. You can trick it into thinking the query string has changed by adding a '&' before the '#' so that you add &#... to the URL.
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 have a small requirement..
if the user dint sign off or log off then he try's to close the browser IE clicking on 'X' (top right of IE or Firefox browser ) then i need to ask a conformation message like "Are you sure you want to close ?" ...
I am using Master page in my application and i tried the event : "window.onbeforeunload " in my master page its works fine, shows an alert(conformation) message. but if i press back button on the browser(IE on IE or Firefox) then also its firing(but it should not) is there any way to full fill my requirement ..I hope i had explained u clearly...if not pl z let me know........
what i mean to say is.. if the Session("USerid") is active or if it contains any value ie.
Session("USerid")="XXX"
at that moment if user trys to close the browse(click in 'X'/Close button browser either IE or Firefox ) it should give prompt a message "are u sure do u want to close?"..
Its all about design steps - but the close and the back button is the same, the close the page, so maybe its impossible to have them all together.
To open, close your script you can make a simple trick. Place them inside a literal and open or close it.
<asp:literal run="server" id="txtCloseAlert">
<script>
... you code here ....
</script>
</asp:literal>
and on code behind.
txtCloseAlert.visible = !string.IsNullOrEmpty(Session("USerid"));
I've looked into this recently and there does not appear to be a standard / consistent way to do this cross-browser hence you back-button problem.
On IE at least you get an event object passed as a parameter to the onbeforeunload method that you can use to get the mouse position, but in FireFox you don't and you would need some other way to determine whether a confirmation is required. It is quite posible that you could get the mouse position in some other way as I haven't looked into that. Point is that if your mouse is not on your form you probably want a confirmation.
You can look at this SO question:
Prevent browser from closing in asp.net
Or do an Internet search on 'onbeforeunload prevent browser closing'.
In your case a synchronous ajax call can be made to the server to do the test.
HTH
If I'm calling for example, http://www.mysite.asp?p1=2&p2=3#Bookmark Does the browser invoke that #Bookmark after the "classic" ASP generates output? It appears that it's not coming thru, the browser doesn't jump down to the bookmark. I am suspicious it's getting "thrown out" by either ASP or the browser. This acts the same on both FF and IE6. Ideas? Thanks Stackoverflow!
Have you set the anchor name in the HTML markup?
For this #Bookmark to work you must have a link <a name="Bookmark" ... ></a>.
See HTML Links - The name Attribute.
Basic notes:
Tip: If a browser does not find the named anchor specified, it goes to the top of the document. No error occurs.
More on this:
http://thedailyreviewer.com/dotnet/view/bookmark-anchors-and-vbnet-103202803
http://www.velocityreviews.com/forums/t96249-can-you-jump-to-an-anchor-on-postback.html
OK, first some background: I have a page showing the number of hits(or views) of any selected item. The hit counter procedure that is called at every page load i.e
if (Request.QueryString.HasKeys())
{
// get item id from icoming url e.g details.aspx?itemid=26
string itemid = Request.Params["itemid"];
if (!Page.IsPostBack)
{
countHit(itemid);
}
}
The problem: my expectation was that the counter would be increased by 1 on every page load but the counters on my datalist and formview are always behind and stepped by 2 i.e
instead of 1, 2, 3, 4, it's 0, 2 , 4, 6.
It seems that the page load is firing twice. Later I discovered that this only happens when you are using Mozilla Firefox. The page behaves fine with other browsers like IE
This becoming quite frustrating.
I've seen Page_Load fire twice if you have an <asp:Image> or an <img runat="server"> on the page that doesn't have its src attribute specified.
Could be worth a look.
I am aware of following things.
If you have img control with empty string assigned to src attribute.
You may be forgot to assign imageurl or wanted to assign imageurl in code behind based on the some condition and that condition never gets executed and ended up being empty string assigned to src attribute when ASP.Net renders the page.
If you have empty string assigned to href attribute to html link for stylsheet.
If you have empty src attribute set to script.
for more information refer this article. http://patelshailesh.com/index.php/page_load-event-fires-twice-with-firefox-only
I had this problem as well.. in my case firebug was causing the extra call.
We ran into a similar problem where fiddler showed that one of our pages loaded twice. This only happened in Firefox and Chrome. The solution was to change:
background-image:url('');
to
background-image:none;
Try turning off FireBug if you have it enabled.
I had this problem too. I found that AVG antivirus toolbar on firefox makes another hit to that page and I had 2 hits per refresh.
Just go to Tools>Add-ons and disable AVG toolbar if you have it. Otherwise it may caused by another extension like one added by antiviruses or other software.
Good luck
The most likely reason is that you're calling the procedure twice.
Usually the reason that the page_load is fired twice is that you have AutoEventWireup=true in the ascx/aspx AND you bind the Load event to the Page_Load method explicitly (in the codebehind).
But then you should see this behavior in all browsers.
Anchor tag with empty href i.e. href="" is also an issue. Use href="#" wherever URL is not required in an anchor tag.
What is the best way to keep an asp:button from displaying it's URL on the status bar of the browser? The button is currently defines like this:
<asp:button id="btnFind"
runat="server"
Text="Find Info"
onclick="btnFind_Click">
</asp:button>
Update:
This appears to be specific to IE7, IE6 and FF do not show the URL in the status bar.
I use FF so never noticed this, but the link does in fact appear in the status bar in IE..
I dont think you can overwrite it :( I initially thought maybe setting the ToolTip (al la "title") property might do it.. Seems it does not..
Looking at the source, what appears is nowhere to be found, so I would say this is a browser issue, I don't think you can do anything in code.. :(
Update
Yeah, Looks like IE always posts whatever the form action is.. Can't see a way to override it, as yet..
Perhaps try explicitly setting it via JS?
Update II
Done some more Googleing. Don't think there really is a "nice" way of doing it.. Unless you remove the form all together and post data some other way..
Is it really worth that much? Generally this just tends to be the page name?
I don't see a link, I see this:
javascript:__doPostBack('btn','');
EDIT: Sorry, was looking at a LinkButton, not an ASP:Button. The ASP:Button shows the forms ACTION element like stated.
But, if you are trying to hide the DoPostBackCall, the only way to do that is to directly manipulate window.status with javascript. The downside is most browsers don't allow this anymore.
To do that, in your page_load add:
btnFind.Attributes.Add("onmouseover","window.status = '';");
btnFind.Attributes.Add("onmouseout","window.status = '';");