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When to save a variable in viewstate?

- by Umut

Hi, I have searched the web for the answer and saw that mostly variables are saved in viewstate on page.prerender event. However, when I save a variable in viewstate on prerender or load events, how can it store the changed value of the variable? Let's say, after page load, user clicked a button and the value of the variable was changed in onClick event of the button. Then the postback event raised since the button was clicked. According to me, the new value should have been lost and cannot be saved in the viewstate if I save the variable in the viewstate only in prerender event. Shouldn't I save the variable in the viewstate just before the postback event rises? Am I wrong? If so, how can viewstate store the new value of the variable? Thanks for the answer in advance..

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CSS elements won't line up

- by Lewis

I have just embedded a newsletter field and button into my website, the field sits nicely but the button is too low. I tried different styles but nothing seems to work. http://www.pazzle.co.uk/ Just underneath the banner.  <div id="mc_embed_signup"> <form action="http://pazzle.us6.list-manage.com/subscribe/post?u=7167bf73b26b7bd1298d4f925&id=a48b73e435" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate> <input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div class="clear"><input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button"></div> </form> </div> 

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Package Installer misbehavoir

- by rantravee

Hi, I am unable to understand and fix the following behavior displayed by the Package Installer : in my application when I press on a "update application" button I download from a web server un update apk (in case there is) and start the Package Installer afterwards to install the package. Everything goes well and after the installation finishes there is displayed a view with two buttons "open" and "done" . However pressing the "open" button fails to open the installed update as it should even if the intent to the startup activity is sent as I observed in logcat . Pressing on menu button and going through the applications installed I am able to find the updated app and start it from here . What should I do to start the update by pressing open in the final Package Installed view ?

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CSS - Why am I not able to set height and width of <a href> elements?

- by Kenny Bones

Hi, I'm trying to create css buttons by using the following html markup: <a href="access.php" class="css_button_red">Forgot password</a> But it ends up being not bigger than the text in the middle. Even though I've set the class's height and width. You can preview the problem here btw, www.matkalenderen.no Notice the first button, that's a form button and it's using it's own class. At first I tried to use the same class on the css button as well and the same problem appeared, so I tried to separate them into their own classes. In case there was some kind of crash. But it didn't matter anyway. What am I missing here?

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Page not redirecting -Jquery

- by RMN

I have page1.aspx and page2.aspx in a website I need to navigate as: Page1-- Page 2(on click of go back button, back to page1)-- page 1 I am using jQuery code to navigate: var pagename= "page2.aspx"; jQ(location).attr('href', pagename); I tried using same code in page2 to navigate back to page 1: var path2 = "page1.aspx"; jq(location).attr('href', path2); also tried below code and similar few others as well. document.location.pathname = '../Pages/page1.aspx'; But all it does is, navigate me to show Directory Listing, where it shows all page names under pages folder. Is there anything wrong with the code ? I tried to do it as per levels too, that is ../pages/page1.aspx .

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Long key press handling in android 1.5

- by Kaillash

Hi, I want to handle key press and long key press for the key code KEYCODE_BACK(back button). can any one suggest me how to do this in android 1.5(API level 3). Here is the code. public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { if(event.getRepeatCount()==0) { // normal key press // But problem is, this code is hitting for long press also, how to avoid this } else { // Long key press //Do something here } // Always consume back key event by returning true //so that default behavior of back is overrided return true; } return super.onKeyDown(keyCode, event); }

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Safe ASCII char to replace whitespace before storing

- by AngryWhenHungry

My code passes a big bunch of text data to a legacy lib, which is responsible for storing it. However, it tends to remove trailing whitespace. This is a problem when I read the data back. Since I cannot change the legacy code, I thought about replacing the all spaces with some uncommon ASCII character. When I read back the text, I can replace them back. Is this a bad idea, considering that I cannot touch the legacy storage code? Which character can I use as a substitute? I was considering some char upwards of 180. There will only be spaces - no tabs or newlines - in the data. The data is alphanumeric, with special characters.

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Specific position for tooltip

- by Fiona

Hello, I have a layer which opens up as a tooltip everytime I hover a button. I simply did that by creating a JS function which displays or hides the layer. Now, I am not a pro in JavaScript. My problem is the following: when the button is scrolled towards the top oft he screen I want the tooltip opening below – and if the button is near the bottom of the screen I want the tooltip opening above. Right now I just did it with absolute positioning. But obviously that doesnt do the trick. Who can help? Thanks!

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didSelectRowAtIndexPath being called after viewDidLoad of the called view

- by Serguei Fedorov

I am trying to pass variables over to the new view. I have the following code: appDelegate *dataCenter = (AppDelegate*)[[UIApplication sharedApplication] delegate]; dataCenter.myVariable = [array objectAtIndex:indexPath.row]; in the didSelectRowAtIndexPath of the calling view. However, the issue that I have is that this variable is empty in the vewDidLoad function of the next view, simply because it fired off BEFORE the didSelectRowAtIndexPath of the calling view. I am using storyboard to link the views together. Both are UITableView. If I hit back and then reselect the table element it is then set, granted that by the time I hit back and then selected again, the variable got set. Is there any way to for the order of execution? I really don't want to do UI view switching on the back end. Any help is greatly appreciated!

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jQuery display problem?

- by SLAPme

How do I hide the #changes-saved code using jQuery? For example let's say the code is displayed when the user clicks the submit button and then leaves the current web page and then returns back to the web page and the #changes-saved is no longer displayed until the submit button is clicked again. Here is the jQuery code. $(function() { $('#changes-saved').hide(); $(".save-button").click(function() { $.post($("#contact-form").attr("action"), $("#contact-form").serialize(), function(html) { $("div.contact-info-form").html(html); $('#changes-saved').append('<li>Changes saved!</li>').show().pause(1000).hide(); }); return false; // Prevent normal submit. }); });

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disabling a window

- by Arno Greiler

In my application I have a button. If the button is clicked as select against a database is executed and the result is shown in a ListView. As the select is quite complex, it takes some time to retrieve the data. When I click the Button, the Application-Window should be disabled until the data is loaded. But when I set the IsEnabled-Property of the Window to false, the Window gets disabled after the data is loaded. I tried to disable the Window in an other thread with a BackgroundWorker. But then I get an exception that the Window is alreay in use by an other thread. How can I disable the Window bevore it retrieves the data?

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What is wrong with selecting with my drop down element.

- by Babiker

<html> <head> <script type='text/javascript' language='javascript' src="http://localhost/javascript/jquery-1.4.2.js"> </script> <script type='text/javascript' language='javascript'> $(document).ready(function(){ $("#button").mousedown(function(){ dropDownMenu = $("#dropDownMenu"); alert(dropDownMenu.options[0].text); }); }); </script> </head> <body> <select id="dropDownMenu"><option>Test</option></select><br> <input id="button" type="button"> </body> </html>

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Navigating between activities and tasks

- by Alex Orlov

The situation: I have an activity "A" that is a delegator activity, in simple words, it's only purpose is to call activity "B" (via startActivityForResult()) depending on data it receives. Activity "B" has launchMode set to "singleTask", so it always runs in a single task. When activity "A" gets started from another task (for example as a share from gallery) it immediately returns ACTION_CANCELLED for activity "B", finishes, and task of activity "B" comes to front (which is an expected behavior). So, what happens, is that we jump from our Gallery app task, to my activity "B" task. Everything is fine until user presses back. Since we are already in a different task, the back button doesn't lead us back to gallery. It navigates in the stack of activity "B" task. The question: is there any way to navigate from one task, to previously shown task (navigate from activity "B" to gallery)? Or maybe there is a way to take currently running activity "B" and move it to another task?

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How can I dismiss the view appeared by touching Add item in UINavigationController ?

- by srikanth rongali

I have added add(+ symbol button) button to my navigation controller. When I click it a view appears from bottom. I added a navigation bar and two buttons to it. One save and one cancel button. And the view have one textEdit box. After editing I can save or cancel. If I touch cancel I need the view to disappear like it should go down again. I think all iPhone , iPodTouch users use it. Like when they touch Add item then a view appears from bottom and when they cancel it goes down again. How can I make in this way in my application.

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Run C# code after running all javascript codes

- by Devi

I am having a form in which a button is there on click of that button i am calling a javascript function in which i am displaying like 3.. 2.. 1 kind of effect then i am returning true. But after showing 3 only return true is getting executed and the form is getting submitted. How to stop form submitting before running the script. Edit: function jsFun() { timerCount(3); //Calling the Timer Function. } var t; function timerCount(cDown) { if (cDown == 0) { clearTimeout(t); return true; } $('#<%= mainContainer.ClientID %>').html(cDown); cDown = cDown - 1; t = setTimeout('timerCount(' + cDown + ')', 1000); } <asp:Button ID="btnStarts" runat="server" Text="Start" OnClientClick="return jsFun();" OnClick="btn_click" />

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how do i let text fit to UIButton?

- by iAsk

problem: Button size is enough, however when I change title, the title text cannot fit the button width. Any SDK function can solve this problem, or I need to manually code to solve it? Please refer to following pictures. design in the nib file. initial show in simulator when I change the title text tried some ways before _button.titleLabel.adjustsFontSizeToFitWidth = YES; the way will change my font size. I cannot accept the way. [_button setTitleEdgeInsets:UIEdgeInsetsMake(10.0, 10.0, 0.0,0.0)]; the way change label's position only, not label size. [_button.titleLabel sizeToFit]; result is same with picture(3). [_button sizeToFit]; title moved to upper left corner, and the title still the same result. Just confused, my button size is big enough, why title size is so small?

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Pass a datatable model to controller action in MVC

- by user2906420

Code: @model System.Data.DataTable <button type="submit" class="btn btn-primary" data-dismiss="modal" aria-hidden="true"> Download</button> [HttpPost] public void getCSV(DataTable dt) { MemoryStream stream = Export.GetCSV(dt); var filename = "ExampleCSV.csv"; var contenttype = "text/csv"; Response.Clear(); Response.ContentType = contenttype; Response.AddHeader("content-disposition", "attachment;filename=" + filename); Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.BinaryWrite(stream.ToArray()); Response.End(); } I want to allow the user to export a CSV file when the button is clicked on. the datatable should be passed to the method getCSV. Please can someone help me. thanks I do not mind using Tempdata to store the datatable and then access it in the controller

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How to put buttons in a html page in a jQuery dialog

- by Robert

eHello everyone,the following is my code to display a jquery dialog window with a closing button "OK": <script type="text/javascript"> $(function(){$("#dialog").dialog({autoOpen:false,bgiframe:true,buttons: { "OK": function() { $(this).dialog("close"); } }, width:500, height: 350, modal: true, show: 'slide', hide:'slide', title:"Similar Trends Detected in 2nd DataSet"}); $("#userid").focus(); }); function showForm(matches){ $("#dialog").html(matches).dialog("open");} Currently it runs by supplying a string variable "matches",then the content of the variable gets displayed on the dialog frame. Now me and my teammate want to extend this dialog a little,we want to attach a button to every line inside the html content("matches" variable),please note that we don't want buttons in the dialog(like another "OK" button),but we want buttons "inside" the frame (the actual html content). So I would like some help here,how could I modify my "matches" variable,to have buttons also shown inside the dialog. Thanks.

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Can I stagger UpdatePanel updates in .NET?

- by cusimar9

I have a situation in which I select an account and I want to bring back its details. This is a single UpdatePanel round trip and its quite quick. In addition, I need to bring back some transactional information which is from a much bigger table and takes a couple of seconds for the query to come back. Ideally, I would like to put this into a second update panel and update this additional information once it has been received, but after the first update panel has updated i.e. the user sees: Change account See account details (almost instant) See transactional info (2 seconds later) The only way I can think of doing this is to use javascript to cause a SECOND postback once the account details have been retrieved to get the transaction information. Is there a better way?

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Silverlight Spring Effect on TextBlock control

- by CJCraft.com

Hi, I'd like to create view that if the user clicks on a control, let's say a TextBlock, that the control would spring back and forth in place from where the user clicked. By spring I mean push back and forth like if there were springs behind the TextBlock in each corner. I've seen demos of this type of effect, and for the life of me, I can't come up with the name of the effect to help with searches, or find an example of this. Maybe instead of a TextBlock it would help to image a picture that could be pressed down on, and as if springs were behind it and then would bounce back into place.

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Proper mechanism for sending PHP errors to the client

- by Chris

Greetings, I was trying to discover a proper way to send captured errors or business logic exceptions to the client in an Ajax-PHP system. In my case, the browser needs to react differently depending on whether a request was successful or not. However in all the examples I've found, only a simple string is reported back to the browser in both cases. Eg: if (something worked) echo "Success!"; else echo "ERROR: that failed"; So when the browser gets back the Ajax response, the only way to know if an error occurred would be to parse the string (looking for 'error' perhaps). This seems clunky. Is there a better/proper way to send back the Ajax response & notify the browser of an error? Thank you.

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facebook and twitter buttons doesn't work

- by Justin

I am building a website in dreamweaver cs5. for some reason, the facebook like button and twitter share as well as follow button doesn't work. facebook like button shows nothing. (in the area, chrome says page cannot be found), twitter buttons show the hyperlink tweet and it tweets but the icon doesn't show up. The code for both are generated from facebook and twitter itself. I haven't hosted the site yet. I and coding and previewing it. Is that the reason for them not to work? I also tried addthis.com widget. It didn't show up as it should have. Please help! Many thanks.

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will destroyed() be emitted if the constructor of a class derived from QObject throws?

- by PorkyBrain

Ive seen Qt GUI syntax like the following all over the place: myDialog::myDialog(QWidget *parent, Qt::WFlags flags):QDialog(parent, flags) { QPushButton *button = new QPushButton("&Download", this); QVBoxLayout *layout = new QVBoxLayout(this); //something that can throw here layout ->addWidget(button ); setLayout(layout); } I've always wondered if this can leak in the event of an exception because the "this" I'm giving as a parent to button and layout is not fully constructed so it might not destroy its children. I tried it out in MSVC2010 Qt4.8.3 and it looks like as soon as the base QObject class is fully created (which is done first of course) it is ok to pass "this" to other objects in the constructor, they will destroyed correctly. I haven't found the spot in the Qt docs guaranteeing this though, can someone point me to it so I have assurance that this will not change in the future?

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Browser Detection, do's and don'ts. Is this ok?

- by JCOC611

So, I understand that browser detection (ie. navigator.userAgent) shouldn't be used to decide which object method/property to use; yet, I want to set some simple CSS with JavaScript depending on the browser. However, it's not enough to justify a completely new StyleSheet. So is it OK if I use Browser Detection to decide what CSS to apply to an element? EDIT Ok, let's be SPECIFIC. I'm talking about a text-shadow inside a button (<input type="button"/>) The text inside the button isn't vertically centered in all browsers, so I tweak this with JS depending on the browser.

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How to require a checkbox to be checked at client side before form gets submitted to server in MVC 3?

- by Projapati

I have a Terms and Condition checkbox on my signup page. I want to make it required like my few other fields on the form before posting to server. This validation must be done at client side. Anyone knows how to do it properly? I am using MVC 3, jquery.validate.min.js and jquery.validate.unobtrusive.min.js Model: [Required(ErrorMessage = "terms and condition")] [Display(Name = "terms")] public bool Terms { get; set; } View: @Html.CheckBoxFor(m => m.Terms, new { @class = "cb" }) Terms & Condition <button type="submit" id="btnSubmit" class="btn">Signup</button> Also, Is it possible to call/trap some JS function when the submit button is clicked? That way I can easily use jquery to do validation and then submit? Thanks for reading

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