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  • TextAppearance_Holo_Large - No resource found

    - by npmaster
    When compiling my app I get the following error: android-apt-compiler: ... \res\values-v14\styles.xml:12: error: Error retrieving parent for item: No resource found that matches the given name '@android:style/TextAppearance_Holo_Large. The code it is complaining about is: <style name="Title" parent="@android:style/TextAppearance_Holo_Large"> <item name="android:layout_height">wrap_content</item> <item name="android:layout_width">wrap_content</item> </style> I checked my manifest file and I have set the SDK to: <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="17" /> Which i believe allows for using the Holo Themes. I am using Android Studio though I doubt that is the cause of the error. Any ideas what I am doing wrong?

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  • Object still linked (referenced) after selecting it out of list?

    - by djerry
    Hey guys, I was wondering, and i'm not really sure, but help me out here. If you have a List items, and there's one object you need to change a property of it. Say myClass has a string property "status". I'm searching my list with a for-loop and i get my object so i do myClass item = items[i]; if i want to change the "status" property, i do this for example : item.Status = "new status"; My question/issue is this: is "item" still linked to the list item, so that if i execute the line above, it will be changed in the list as well without having to set this : items[i] = item; Hope this is clear. Thanks in advance.

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  • javascript will not work onload

    - by user2711818
    The javascript on the page needs to work onpage load. So I tried adding the document ready function into the code. It doesn't seem to work. http://janeucreative.com/daddychallenge/bag.html <script>$(document).ready(function() { function addItem(item) { var itemInCart = item.cloneNode(true); itemInCart.onclick = function() { removeItem(this); }; var cart = document.getElementById("cart"); cart.appendChild(itemInCart); } function removeItem(item) { var itemInItems = item.cloneNode(true); itemInItems.onclick = function() { addItem(this); }; var cart = document.getElementById("cart"); cart.removeChild(item); } init(); });</script> Any advice would be much appreciated! I'm very new to javascript and just trying to learn it a step at a time.

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  • Distinctly LINQ &ndash; Getting a Distinct List of Objects

    - by David Totzke
    Let’s say that you have a list of objects that contains duplicate items and you want to extract a subset of distinct items.  This is pretty straight forward in the trivial case where the duplicate objects are considered the same such as in the following example: List<int> ages = new List<int> { 21, 46, 46, 55, 17, 21, 55, 55 }; IEnumerable<int> distinctAges = ages.Distinct(); Console.WriteLine("Distinct ages:"); foreach (int age in distinctAges) { Console.WriteLine(age); } /* This code produces the following output: Distinct ages: 21 46 55 17 */ What if you are working with reference types instead?  Imagine a list of search results where items in the results, while unique in and of themselves, also point to a parent.  We’d like to be able to select a bunch of items in the list but then see only a distinct list of parents.  Distinct isn’t going to help us much on its own as all of the items are distinct already.  Perhaps we can create a class with just the information we are interested in like the Id and Name of the parents.  public class SelectedItem { public int ItemID { get; set; } public string DisplayName { get; set; } } We can then use LINQ to populate a list containing objects with just the information we are interested in and then get rid of the duplicates. IEnumerable<SelectedItem> list = (from item in ResultView.SelectedRows.OfType<Contract.ReceiptSelectResults>() select new SelectedItem { ItemID = item.ParentId, DisplayName = item.ParentName }) .Distinct(); Most of you will have guessed that this didn’t work.  Even though some of our objects are now duplicates, because we are working with reference types, it doesn’t matter that their properties are the same, they’re still considered unique.  What we need is a way to define equality for the Distinct() extension method. IEqualityComparer<T> Looking at the Distinct method we see that there is an overload that accepts an IEqualityComparer<T>.  We can simply create a class that implements this interface and that allows us to define equality for our SelectedItem class. public class SelectedItemComparer : IEqualityComparer<SelectedItem> { public new bool Equals(SelectedItem abc, SelectedItem def) { return abc.ItemID == def.ItemID && abc.DisplayName == def.DisplayName; } public int GetHashCode(SelectedItem obj) { string code = obj.DisplayName + obj.ItemID.ToString(); return code.GetHashCode(); } } In the Equals method we simply do whatever comparisons are necessary to determine equality and then return true or false.  Take note of the implementation of the GetHashCode method.  GetHashCode must return the same value for two different objects if our Equals method says they are equal.  Get this wrong and your comparer won’t work .  Even though the Equals method returns true, mismatched hash codes will cause the comparison to fail.  For our example, we simply build a string from the properties of the object and then call GetHashCode() on that. Now all we have to do is pass an instance of our IEqualitlyComarer<T> to Distinct and all will be well: IEnumerable<SelectedItem> list =     (from item in ResultView.SelectedRows.OfType<Contract.ReceiptSelectResults>()         select new SelectedItem { ItemID = item.dahfkp, DisplayName = item.document_code })                         .Distinct(new SelectedItemComparer());   Enjoy. Dave Just because I can… Technorati Tags: LINQ,C#

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  • Missing Fields and Default Values

    - by PointsToShare
    © 2011 By: Dov Trietsch. All rights reserved Dealing with Missing Fields and Default Values New fields and new default values are not propagated throughout the list. They only apply to new and updated items and not to items already entered. They are only prospective. We need to be able to deal with this issue. Here is a scenario. The user has an old list with old items and adds a new field. The field is not created for any of the old items. Trying to get its value raises an Argument Exception. Here is another: a default value is added to a field. All the old items, where the field was not assigned a value, do not get the new default value. The two can also happen in tandem – a new field is added with a default. The older items have neither. Even better, if the user changes the default value, the old items still carry the old defaults. Let’s go a bit further. You have already written code for the list, be it an event receiver, a feature receiver, a console app or a command extension, in which you span all the fields and run on selected items – some new (no problem) and some old (problems aplenty). Had you written defensive code, you would be able to handle the situation, including similar changes in the future. So, without further ado, here’s how. Instead of just getting the value of a field in an item – item[field].ToString() – use the function below. I use ItemValue(item, fieldname, “mud in your eye”) and if “mud in your eye” is what I get, I know that the item did not have the field.   /// <summary> /// Return the column value or a default value /// </summary> private static string ItemValue(SPItem item, string column, string defaultValue) {     try     {         return item[column].ToString();     }     catch (NullReferenceException ex)     {         return defaultValue;     }     catch (ArgumentException ex)     {         return defaultValue;     } } I also use a similar function to return the default and a funny default-default to ascertain that the default does not exist. Here it is:  /// <summary> /// return a fields default or the "default" default. /// </summary> public static string GetFieldDefault(SPField fld, string defValue) {     try     {         // -- Check if default exists.         return fld.DefaultValue.ToString();     }     catch (NullReferenceException ex)     {         return defValue;     }     catch (ArgumentException ex)     {         return defValue;     } } How is this defensive? You have trapped an expected error and dealt with it. Therefore the program did not stop cold in its track and the required code ran to its end. Now, take a further step - write to a log (See Logging – a log blog). Read your own log every now and then, and act accordingly. That’s all Folks!

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  • Select list auto update on any kind of change?

    - by Tom Irons
    I have a jQuery that when you click on a select option it will show the next one, but you have to click, you cant just use the down arrow or "tab" to the next option. I am wondering what options do I have to make this work? Here is my jQuery: function typefunction() { var itemTypes = jQuery('#type'); var select = this.value; itemTypes.change(function () { if ($(this).val() == '1-Hand') { $('.1-Hand').show(); $('.2-Hand').hide(); $('.off').hide(); $('.Armor').hide(); } else $('.1-Hand').hide(); if ($(this).val() == '2-Hand') { $('.2-Hand').show(); $('.1-Hand').hide(); $('.off').hide(); $('.Armor').hide(); } else $('.2-Hand').hide(); if ($(this).val() == 'Armor') { $('.Armor').show(); $('.2-Hand').hide(); $('.off').hide(); $('.1-Hand').hide(); } else $('.Armor').hide(); if ($(this).val() == 'Off-Hand') { $('.Off').show(); $('.2-Hand').hide(); $('.1-Hand').hide(); $('.Armor').hide(); } else $('.Off').hide(); if ($(this).val() == '1-Hand') { $('.one-hand-dps').show(); $('.item-armor').hide(); $('.two-hand-dps').hide(); } else $('.one-hand-dps').hide(); if ($(this).val() == '2-Hand') { $('.two-hand-dps').show(); $('.one-hand-dps').hide(); $('.item-armor').hide(); } else $('.two-hand-dps').hide(); if ($(this).val() == 'Armor') { $('.item-armor').show(); $('.one-hand-dps').hide(); $('.two-hand-dps').hide(); } else $('.item-armor').hide(); }); } And the HTML: <div class="input-group item"> <span class="input-group-addon">Type</span> <select id="type" name="type" class="form-control" onclick="typefunction(); itemstats(); Armor(); OffHand(); TwoHand();"> <option value="Any Type">Any Type</option> <option value="1-Hand">1-Hand</option> <option value="2-Hand">2-Hand</option> <option value="Armor">Armor</option> <option value="Off-Hand">Off-Hand</option> </select> </div> <div class="input-group item"> <span class="1-Hand input-group-addon" style="display: none;">Sub-Type</span> <select class="1-Hand form-control" name="sub[1]" style="display: none;"> <option value="All 1-Hand Item Types">All 1-Hand Item Types</option> <option>Axe</option> <option>Ceremonial Knife</option> <option>Hand Crossbow</option> <option>Dagger</option> <option>Fist Weapon</option> <option>Mace</option> <option>Mighty Weapon</option> <option>Spear</option> <option>Sword</option> <option>Wand</option> </select> </div> <div class="input-group"> <span class="2-Hand input-group-addon" style="display: none; ">Sub-Type</span> <select class="2-Hand form-control" name="sub[2]" style="display: none;"> <option>All 2-Hand Item Types</option> <option>Two-Handed Axe</option> <option>Bow</option> <option>Diabo</option> <option>Crossbow</option> <option>Two-Handed Mace</option> <option>Two-Handed Mighty Weapon</option> <option>Polearm</option> <option>Staff</option> <option>Two-Handed Sword</option> </select> </div> <div class="input-group"> <span class="Armor input-group-addon" style="display: none;">Sub-Type</span> <select class="Armor form-control" name="sub[3]" style="display:none;"> <option>All Armor Item Types</option> <option>Amulet</option> <option>Belt</option> <option>Boots</option> <option>Bracers</option> <option>Chest Armor</option> <option>Cloak</option> <option>Gloves</option> <option>Helm</option> <option>Pants</option> <option>Mighty Belt</option> <option>Ring</option> <option>Shoulders</option> <option>Spirit Stone</option> <option>Voodoo Mask</option> <option>Wizard Hat</option> </select> </div> <div class="input-group"> <span class="Off input-group-addon" style="display: none;">Sub-Type</span> <select class="Off form-control" name="sub[4]" style="display:none;"> <option>All Off-Hand Item Types</option> <option>Mojo</option> <option>Source</option> <option>Quiver</option> <option>Shield</option> </select> </div>

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  • MAMP Pro .xip.io, fixing urls with htaccess

    - by user3540018
    I've got all my websites set up with MAMP Pro. For instance, I got it set up, so when I go to example.com, the browser displays the website that's set up on my iMac. Now, I wanna get MAMP Pro to work so I can view my website on my other computers/devices (which are all hooked up on the same network.) So far all I had to do is check the checkbox "via Xip.io (LAN only)", and now I can view my website on my other computers/devices within my LAN by simply going to example.com.10.0.1.13.xip.io. Problem is, whenever I'm on this other computer/device, when I click on the links, I get 404 error. ie. whenever I go to example.com/news, I get the 404. But when I go to example.com.10.0.1.13.xip.io/news, THEN I get the right page. So in order to solve my problem I need to rewrite the urls. So whenever someone clicks on a link ie. goes straight to example.com/news, he'll go to example.com.10.0.1.13.xip.io/news. I don't want to change all the links in my MySQL file, but I believe I can do it simply with the htaccess file. I've opened the htaccess file and added the last two lines, but it just doesn't work. <IfModule mod_rewrite.c> RewriteEngine On # Send would-be 404 requests to Craft RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_URI} !^/(favicon\.ico|apple-touch-icon.*\.png)$ [NC] RewriteRule (.+) index.php?p=$1 [QSA,L] RewriteCond %{HTTP_HOST} ^example\.com RewriteRule ^(.*)$ http://www.example.com.10.0.1.13.xip.io/$1 [R=permanent,L] </IfModule> Or perhaps I don't need to change the htaccess file, is there something that I could be missing in the MAMP Pro settings, or perhaps a MAMP extension that I need?

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  • xml parsing using nsxmlParser in iphone

    - by filthynight
    hi all, I have a problem in parsing xml from google api, the api xml looks like this ....... Now the problem is that first of all, the tags are different, like first parent tag name is "abc" and second parent tag is "efg", further more the inner tags are different as well. i have modified code got from web that it parses another url, but in this case since the tags keeps on changing it does not work. the url = "http://www.google.com/ig/api?weather=anaheim,ca" Source Code (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{ //NSLog(@"found this element: %@", elementName); if (currentElement) { [currentElement release]; currentElement = nil; } currentElement = [elementName copy]; NSString *thisOwner = [attributeDict objectForKey:@"data"]; NSLog(@"element Name-------: %@", thisOwner); if ([elementName isEqualToString:@"forecast_information"]) //|| [elementName isEqualToString:@"current_conditions"] || [elementName isEqualToString:@"forecast_conditions"]) { // clear out our story item caches... //NSString *nm = [[attributeDict objectForKey:@"city"] stringValue]; //NSLog(@"value...%@",nm); item = [[NSMutableDictionary alloc] init]; currentTitle = [[NSMutableString alloc] init]; currentDate = [[NSMutableString alloc] init]; currentSummary = [[NSMutableString alloc] init]; currentLink = [[NSMutableString alloc] init]; [item setObject:currentLink forKey:@"postal_code"]; [item setObject:currentSummary forKey:@"current_date_time"]; [item setObject:currentDate forKey:@"unit_system"]; NSLog(@"adding story: %@", currentTitle); [stories addObject:[item copy]]; } } I have another function didEndElement where the values are assigned in the array, but i could not figure out how to assign values of an attribute. Can somebody please help me in this regards Thanks!

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  • JQuery UI Autocomplete Syntax

    - by djs22
    Can someone help me understand the following code? I found it here. It takes advantage of the JQuery UI Autocomplete with a remote source. I've commented the code as best I can and a more precise question follows it. $( "#city" ).autocomplete({ source: function( request, response ) { //request is an objet which contains the user input so far // response is a callback expecting an argument with the values to autocomplete with $.ajax({ url: "http://ws.geonames.org/searchJSON", //where is script located dataType: "jsonp", //type of data we send the script data: { //what data do we send the script featureClass: "P", style: "full", maxRows: 12, name_startsWith: request.term }, success: function( data ) { //CONFUSED! response( $.map( data.geonames, function( item ) { return { label: item.name+(item.adminName1 ? ","+item.adminName1:"")+","+item.countryName, value: item.name } } ) ); } }); } }); As you can see, I don't understand the use of the success function and the response callback. I know the success function literal is an AJAX option which is called when the AJAX query returns. In this case, it seems to encapsulate a call to the response callback? Which is defined where? I thought by definition of a callback, it should be called on its own? Thanks!

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  • Binding from View-Model to View-Model of a child User Control in Silverlight? 2 sources - 1 target..

    - by andrej351
    Hi there, So i have a UserControl for one of my Views and have another 'child' UserControl inside that. The outer 'parent' UserControl has a Collection on its View-Model and a Grid control on it to display a list of Items. I want to place another UserControl inside this UserControl to display a form representing the details of one Item. The outer / parent UserControl's View-Model already has a property on it to hold the currently selected Item and i would like to bind this to a DependancyProperty on the inner / child UserControl. I would then like to bind that DependancyProperty to a property on the child UserControl's View-Model. I can then set the DependancyProperty once in XAML with a binding expression and have the child UserControl do all its work in its View-Model like it should. The code i have looks like this.. Parent UserControl: <UserControl x:Class="ItemsListView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" DataContext="{Binding Source={StaticResource ServiceLocator}, Path=ItemsListViewModel}"> <!-- Grid Control here... --> <ItemDetailsView Item="{Binding Source={StaticResource ServiceLocator}, Path=ItemsListViewModel.SelectedItem}" /> </UserControl> Child UserControl: <UserControl x:Class="ItemDetailsView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" DataContext="{Binding Source={StaticResource ServiceLocator}, Path=ItemDetailsViewModel}" ItemDetailsView.Item="{Binding Source={StaticResource ServiceLocator}, Path=ItemDetailsViewModel.Item, Mode=TwoWay}"> <!-- Form controls here... --> </UserControl> The selected Item is bound to the DependancyProperty fine. However from the DependancyProperty to the child View-Model does not. It appears to be a situation where there are two concurrent bindings which need to work but with the same target for two sources. Why won't the second (in the child UserControl) binding work?? Is there a way to acheive the behaviour I'm after?? Cheers.

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  • Convert a (nested)HTML unordered list of links to PHP array of links

    - by Klark
    Hi, I have a regular, nested HTML unordered list of links, and I'd like to scrape it with PHP and convert it to an array. The original list looks something like this: <ul> <li><a href="http://someurl.com">First item</a> <ul> <li><a href="http://someotherurl.com/">Child of First Item</a></li> <li><a href="http://someotherurl.com/">Second Child of First Item</a></li> </ul> </li> <li><a href="http://bogusurl.com">Second item</a></li> <li><a href="http://bogusurl.com">Third item</a></li> <li><a href="http://bogusurl.com">Fourth item</a></li> </ul> Any of the items can have children. (The actual screen scraping is not a problem, I can do that.) I'd like to turn this into a PHP array, of just the links, while keeping the hierarchical nature of the list. Any ideas? I've looked at using htmlsimpledom and phpQuery, which both use jQuery like syntax. But, I can't seem to get the syntax right. Thanks.

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  • Why is TransactionScope operation is not valid?

    - by Cragly
    I have a routine which uses a recursive loop to insert items into a SQL Server 2005 database The first call which initiates the loop is enclosed within a transaction using TransactionScope. When I first call ProcessItem the myItem data gets inserted into the database as expected. However when ProcessItem is called from either ProcessItemLinks or ProcessItemComments I get the following error. “The operation is not valid for the state of the transaction” I am running this in debug with VS 2008 on Windows 7 and have the MSDTC running to enable distributed transactions. The code below isn’t my production code but is set out exactly the same. The AddItemToDatabase is a method on a class I cannot modify and uses a standard ExecuteNonQuery() which creates a connection then closes and disposes once completed. I have looked at other posting on here and the internet and still cannot resolve this issue. Any help would be much appreciated. using (TransactionScope processItem = new TransactionScope()) { foreach (Item myItem in itemsList) { ProcessItem(myItem); } processItem.Complete(); } private void ProcessItem(Item myItem) { AddItemToDatabase(myItem); ProcessItemLinks(myItem); ProcessItemComments(myItem); } private void ProcessItemLinks(Item myItem) { foreach (Item link in myItem.Links) { ProcessItem(link); } } private void ProcessItemComments(Item myItem) { foreach (Item comment in myItem.Comments) { ProcessItem(comment); } } Here is top part of the stack trace. Unfortunatly I cant show the build up to this point as its company sensative information which I can not disclose. Hope this is enough information. at System.Transactions.TransactionState.EnlistPromotableSinglePhase(InternalTransaction tx, IPromotableSinglePhaseNotification promotableSinglePhaseNotification, Transaction atomicTransaction) at System.Transactions.Transaction.EnlistPromotableSinglePhase(IPromotableSinglePhaseNotification promotableSinglePhaseNotification) at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx) at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx) at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction) at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open()

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  • LaTeX indentation (formatting) in Emacs

    - by nkuyu
    Hi, what is the correct way to do indentation of a LaTeX document in Emacs (AucTex)? For example when I have a list: \begin{itemize} \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \end{document} and would like to ended up with: \begin{itemize} \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \end{document} I tried indent-region but it doesn't do anything and the LaTeX-fill-* produces weird results like: \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \item orem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam enim urna, mattis eu aliquet eget, condimentum id nibh. In hac habitasse platea dictumst. \end{document} Thanks!

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  • Problems reading RSS feed with jQuery.get()

    - by bbeckford
    Hi there, I've been pulling my hair out trying to use jQuery.get() to pull in my dynamically generated RSS feed and I'm having nothing but issues, is my RSS feed the wrong format? If so can I convert it to the correct format using javascript? Here's my feed: http://dev.chriscurddesign.co.uk/burns/p/rc_rss.php?rcf_id=0 Here's my code: function get_rss_feed() { $(".content").empty(); $.get("http://dev.chriscurddesign.co.uk/burns/p/rc_rss.php?rcf_id=0", function(d) { var i = 0; $(d).find('item').each(function() { var $item = $(this); var title = $item.find('title').text(); var link = $item.find('link').text(); var location = $item.find('location').text(); var pubDate = $item.find('pubDate').text(); var html = '<div class="entry"><a href="' + link + '" target="_blank">' + title + '</a></div>'; $('.content').append(html); i++; }); }); }; Any input would be greatly appreciated!! Thanks

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  • Ways std::stringstream can set fail/bad bit?

    - by Evan Teran
    A common piece of code I use for simple string splitting looks like this: inline std::vector<std::string> split(const std::string &s, char delim) { std::vector<std::string> elems; std::stringstream ss(s); std::string item; while(std::getline(ss, item, delim)) { elems.push_back(item); } return elems; } Someone mentioned that this will silently "swallow" errors occurring in std::getline. And of course I agree that's the case. But it occurred to me, what could possibly go wrong here in practice that I would need to worry about. basically it all boils down to this: inline std::vector<std::string> split(const std::string &s, char delim) { std::vector<std::string> elems; std::stringstream ss(s); std::string item; while(std::getline(ss, item, delim)) { elems.push_back(item); } if(ss.fail()) { // *** How did we get here!? *** } return elems; } A stringstream is backed by a string, so we don't have to worry about any of the issues associated with reading from a file. There is no type conversion going on here since getline simply reads until it sees a newline or EOF. So we can't get any of the errors that something like boost::lexical_cast has to worry about. I simply can't think of something besides failing to allocate enough memory that could go wrong, but that'll just throw a std::bad_alloc well before the std::getline even takes place. What am I missing?

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  • Submenu within menu within menu ?

    - by abhishek mishra
    On pressing menu button , I have 2 options : Add & more. On click of more i have 3 options : Organize ,Export & Exit On click of Organize i want other 5 options. On click of more i get my submenu. But i want other 5 options on click of organize.How do i proceed??? My code in parts is as follows : XML file------------------------------- <item android:id="@+id/more" android:title="@string/moreMenu" android:icon="@drawable/icon"> <menu> <item android:id="@+id/Organize" android:title="@string/Organize" /> <item android:id="@+id/Export" android:title="@string/Export" /> </menu> </item> android:id="@+id/add" android:title="@string/addMenu" android:icon="@drawable/add"/ Java------------------------- package com.tcs.QuickNotes; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.Toast; public class ToDoList extends Activity { Menu menu; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.todolist); } public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.layout.categorymenu, menu); return true; } public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.more: Toast.makeText(this, "You pressed more!", Toast.LENGTH_LONG).show(); //(What needs to be done from here) return true; case R.id.add: Toast.makeText(this, "You pressed add!", Toast.LENGTH_LONG).show(); return true; } return false; } public boolean onPrepareOptionsMenu(Menu menu) { return true; } }

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  • Create Generic method constraining T to an Enum

    - by johnc
    I'm building a function to extend the Enum.Parse concept that allows a default value to be parsed in case that an Enum value is not found Is case insensitive So I wrote the following public static T GetEnumFromString<T>(string value, T defaultValue) where T : Enum { if (string.IsNullOrEmpty(value)) return defaultValue; foreach (T item in Enum.GetValues(typeof(T))) { if (item.ToString().ToLower().Equals(value.Trim().ToLower())) return item; } return defaultValue; } I am getting a Error Constraint cannot be special class 'System.Enum' Fair enough, but is there a workaround to allow a Generic Enum, or am I going to have to mimic the Parse function and pass a type as an attribute, which forces the ugly boxing requirement to your code. EDIT All suggestions below have been greatly appreciated, thanks Have settled on (I've left the loop to maintain case insensitivity - I am usng this when parsing XML) public static class EnumUtils { public static T ParseEnum<T>(string value, T defaultValue) where T : struct, IConvertible { if (!typeof(T).IsEnum) throw new ArgumentException("T must be an enumerated type"); if (string.IsNullOrEmpty(value)) return defaultValue; foreach (T item in Enum.GetValues(typeof(T))) { if (item.ToString().ToLower().Equals(value.Trim().ToLower())) return item; } return defaultValue; } }

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  • Rails: Create method available in all views and all models

    - by smotchkkiss
    I'd like to define a method that is available in both my views and my models Say I have a view helper: def foo(s) "hello #{s}" end A view might use the helper like this: <div class="data"><%= foo(@user.name) %></div> However, this <div> will be updated with a repeating ajax call. I'm using a to_json call in a controller returns data like so: render :text => @item.to_json(:only => [...], :methods => [:foo]) This means, that I have to have foo defined in my Item model as well: class Item def foo "hello #{name}" end end It'd be nice if I could have a DRY method that could be shared in both my views and my models. Usage might look like this: Helper def say_hello(s) "hello #{s}" end User.rb model def foo say_hello(name) end Item.rb model def foo say_hello(label) end View <div class="data"><%= item.foo %></div> Controller def observe @items = item.find(...) render :text => @items.to_json(:only=>[...], :methods=>[:foo]) end IF I'M DUMB, please let me know. I don't know the best way to handle this, but I don't want to completely go against best-practices here. If you can think of a better way, I'm eager to learn!

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  • Dojo Widgets not rendering when returned in response to XhrPost

    - by lazynerd
    I am trying to capture the selected item in a Dijit Tree widget to render remaining part of the web page. Here is the code that captures the selected item and sends it to Django backend: <div dojoType="dijit.Tree" id="leftTree" store="leftTreeStore" childrenAttr="folders" query="{type:'folder'}" label="Explorer"> <script type="dojo/method" event="onClick" args="item"> alert("Execute of node " + termStore.getLabel(item)); var xhrArgs = { url: "/load-the-center-part-of-page", handleAs: "text", postData: dojo.toJson(leftTreeStore.getLabel(item), true), load: function(data) { dojo.byId("centerPane").innerHTML = data; //window.location = data; }, error: function(error) { dojo.byId("centerPane").innerHTML = "<p>Error in loading...</p>"; } } dojo.byId("centerPane").innerHTML = "<p>Loading...</p>"; var deferred = dojo.xhrPost(xhrArgs); </script> </div> The remaining part of the page contains HTML code with dojo widgets. This is the code sent back as 'response' to the select item event. Here is a snippet: <div dojoType="dijit.layout.TabContainer" id="tabs" jsId="tabs"> <div dojoType="dijit.layout.BorderContainer" title="Dashboard"> <div dojoType="dijit.layout.ContentPane" region="bottom"> first tab </div> </div> <div dojoType="dijit.layout.BorderContainer" title="Compare"> <div dojoType="dijit.layout.ContentPane" region="bottom"> Second Tab </div> </div> </div> It renders this html 'response' but without the dojo widgets. Is handleAs: "text" in XhrPost the culprit here?

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  • possible xml elements in Android resources xmls ?

    - by Vijay C
    I recently came across a forum post in thelink text android developers group. (link below) It has one post which contains following xml. It is xml file which can be used in drawable folder. <selector xmlns:android="http://schemas.android.com/apk/res/android"> <!-- Non focused states --> <item android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" /> <item android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" /> <!-- Focused states --> <item android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_focus" /> <item android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_focus"/> <!-- Pressed --> <item android:state_pressed="true" android:drawable="@drawable/tab_press" /> </selector> Now my question is, where is the documentation which tells me that i can use the following xml tags <selector> , <item>, <color>, <integer-array>, <string-array> and many others tag to create xml resources...? I hope, i have explained what i want to know ?

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  • Is a red-black tree my ideal data structure?

    - by Hugo van der Sanden
    I have a collection of items (big rationals) that I'll be processing. In each case, processing will consist of removing the smallest item in the collection, doing some work, and then adding 0-2 new items (which will always be larger than the removed item). The collection will be initialised with one item, and work will continue until it is empty. I'm not sure what size the collection is likely to reach, but I'd expect in the range 1M-100M items. I will not need to locate any item other than the smallest. I'm currently planning to use a red-black tree, possibly tweaked to keep a pointer to the smallest item. However I've never used one before, and I'm unsure whether my pattern of use fits its characteristics well. 1) Is there a danger the pattern of deletion from the left + random insertion will affect performance, eg by requiring a significantly higher number of rotations than random deletion would? Or will delete and insert operations still be O(log n) with this pattern of use? 2) Would some other data structure give me better performance, either because of the deletion pattern or taking advantage of the fact I only ever need to find the smallest item? Update: glad I asked, the binary heap is clearly a better solution for this case, and as promised turned out to be very easy to implement. Hugo

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  • Use of var keyword in C#

    - by kronoz
    After discussion with colleagues regarding the use of the 'var' keyword in C# 3 I wondered what people's opinions were on the appropriate uses of type inference via var? For example I rather lazily used var in questionable circumstances, e.g.:- foreach(var item in someList) { // ... } // Type of 'item' not clear. var something = someObject.SomeProperty; // Type of 'something' not clear. var something = someMethod(); // Type of 'something' not clear. More legitimate uses of var are as follows:- var l = new List<string>(); // Obvious what l will be. var s = new SomeClass(); // Obvious what s will be. Interestingly LINQ seems to be a bit of a grey area, e.g.:- var results = from r in dataContext.SomeTable select r; // Not *entirely clear* what results will be here. It's clear what results will be in that it will be a type which implements IEnumerable, however it isn't entirely obvious in the same way a var declaring a new object is. It's even worse when it comes to LINQ to objects, e.g.:- var results = from item in someList where item != 3 select item; This is no better than the equivilent foreach(var item in someList) { // ... } equivilent. There is a real concern about type safety here - for example if we were to place the results of that query into an overloaded method that accepted IEnumerable<int> and IEnumerable<double> the caller might inadvertently pass in the wrong type. Edit - var does maintain strong typing but the question is really whether it's dangerous for the type to not be immediately apparent on definition, something which is magnified when overloads mean compiler errors might not be issued when you unintentionally pass the wrong type to a method. Related Question: http://stackoverflow.com/questions/633474/c-do-you-use-var

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  • Implementing subtables in JSF 1.1

    - by Xenon
    We're looking for a way to implement subtables in JSF 1.1. We cannot use Rich Faces due to the fact that out target server is WebSphere 6.1. I've tried JSTL and Tomahawk to no avail. Also, our project is using JSP's and not facelets. Here's my HTML/JSTL example: <table border="1" width="700px"> Header 1 Header 2 Header 3 Header 4 Header 5 ${item.value1} ${item.value2} ${item.value3} ${item.value4} ${item.value5} <tr> <td colspan="5"> <table border="1" width="100%"> <thead> <tr> <td>SubHeader 1</td> <td>SubHeader 2</td> <td>SubHeader 3</td> <td>SubHeader 4</td> <td>SubHeader 5</td> </tr> </thead> <!-- For loop iteration over subtable data --> <c:forEach var="subitem" items="${item.subtable}"> <tr> <td>${subitem.value1}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> </tr> </c:forEach> </table> </td> </tr>

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  • How to design a RESTful collection resource?

    - by Suresh Kumar
    I am trying to design a "collection of items" resource. I need to support the following operations: Create the collection Remove the collection Add a single item to the collection Add multiple items to the collection Remove a single item from the collection Remove multiple items from the collection This is as far as I have gone: Create collection: ==> POST /service Host: www.myserver.com Content-Type: application/xml <collection name="items"> <item href="item1"/> <item href="item2"/> <item href="item3"/> </collection> <== 201 Created Location: http://myserver.com/service/items Content-Type: application/xml ... Remove collection: ==> DELETE /service/items <== 200 OK Removing a single item from the collection: ==> DELETE /service/items/item1 <== 200 OK However, I am finding supporting the other operations a bit tricky i.e. what methods can I use to: Add single or multiple items to the collection. (PUT doesn't seem to be right here as per HTTP 1.1 RFC Remove multiple items from the collection in one transaction. (DELETE doesn't seem to right here either)

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  • Trim characters from RSS feed

    - by egr103
    I'm calling in a RSS feed to my website using PHP. Currently my code below is calling in the entire contents for pubDate: <pubDate>Thu, 12 Sep 2013 07:23:59 +0000</pubDate> How do I just display the day and month from the above example i.e. 12 Sep? EDIT I should clarify, the above line of code is an example output I currently get but as I'm calling the latest 3 posts from an RSS feed, this date and time will vary. I therefore need the code to be more dynamic (if that's the right term!) This code is my full code that fetches the contents of an RSS feed: <?php $counter = 0; $xml=simplexml_load_file("http://tutorial.world.edu/feed/"); foreach ($xml->channel->item as $item) { $title = (string) $item->title; // Title Post $link = (string) $item->link; // Url Link $pubDate = (string) $item->pubDate; // date $description = (string) $item->description; //Description Post echo '<div class="display-rss-feed"><a href="'.$link.'" target="_blank" title="" >'.$title.' </a><br/><br/>'; echo $description.'<hr><p style="background-color:#e4f;">'.$pubDate.'</p></div>'; if($counter == 2 ) { break; } else { $counter++; } } ?>

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