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  • Why is the Dependency Property not returning its value?

    - by B-Rad
    I have a MyUserControl with the following Xaml: <TextBox Text="{Binding InputValueProperty}" /> In the MyUserControl.xaml.cs I have: public string InputValue { get { return (string)GetValue(InputValueProperty); } set { SetValue(InputValueProperty, value); } } public static readonly DependencyProperty InputValueProperty = DependencyProperty.Register("InputValueProperty", typeof(string), typeof(MyUserControl)); In my MainWindow.xaml I create a user control: <local:MyUserControl InputValue="My Input" /> Later on in my MainWindow.xaml.cs I am trying to access this string. All instances of MyUserControl are contained in a List and I access them with a foreach. string temp = userControl.InputValue; This is always null. In my MainWindow.xaml I can see the "My Input" in the text box of the user control but I can't ever seem to get it out of there.

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  • LINQ How to force query to materialize?

    - by Bobb
    Say I have simple LINQ extenstion: var filtered = data.Where(i => i.Count > 0); I know that this will not evaluated unless I start to use filtered i.e. foreach(DataItem i in filtered) ... However I need to create cloned version of data and release data as soon as possible. data can be changed in other thread so I want to get immediate snapshot of it. How can I force filtered to be evaluated immediately?

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  • C++ virtual + protected?

    - by user346113
    Hi, In C++, I have a base class A, a sub class B. Both have the virtual method Visit. I would like to redefine 'Visit' in B, but B need to access the 'Visit' function of each A (and all subclass to). I have something like that, but it tell me that B cannot access the protected member of A! But B is a A too :-P So, what can I do? class A { protected: virtual Visit(...); } class B : public class A { protected: vector<A*> childs; Visit(...); } B::Visit(...) { foreach(A* a in childs) { a->Visit(...); } } Thx

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  • Apply CSS class to invalid controls on web form

    - by user137639
    I need to apply a css class to invalid controls on a web form. I'd like to make it a resusable class. This is what I have so far: public class Validation { public static void ApplyInvalidClass(Page page, string className) { foreach (System.Web.UI.WebControls.BaseValidator bv in page.Validators) { if (!bv.IsValid) { Control ctrl = page.FindControl(bv.ControlToValidate); if (ctrl != null) { if (ctrl is TextBox) { TextBox txt = ctrl as TextBox; txt.CssClass = "invalid"; } if (ctrl is DropDownList) { DropDownList ddl = ctrl as DropDownList; ddl.CssClass = "invalid"; } if (ctrl is CheckBox) { CheckBox cb = ctrl as CheckBox; cb.CssClass = "invalid"; } if (ctrl is HtmlGenericControl) { HtmlGenericControl html = ctrl as HtmlGenericControl; html.Attributes.Add("class", className); } } } } } } The problem is what I call this on a .Net user control, I guess because I'm passing in Page, page.FindControl(bv.ControlToValidate) is always null. Is there a better way to do this?

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  • php and XML range into array

    - by Mike
    The code below helps be to get the WHOLE XML and put it into an array. What I'm wondering is, what would be a good way to get the XML only from item 3 - 6 or any arbitrary range instead of the whole document. $mt_arr = array(); $d = new DOMDocument(); $d->load('http://news.google.com/?output=rss'); foreach ($d->getElementsByTagName('item') as $t) { $list = array ( 'title' => $t->getElementsByTagName('title')->item(0)->nodeValue); array_push($mt_arr, $list); } Thanks

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  • How to change a DateTime Format

    - by Carlo Adap
    List<DateTime> datetimerange = new List<DateTime>(); DateTime StartDate = Convert.ToDateTime(txtDate.Text); DateTime EndDate = Convert.ToDateTime(TextBox1.Text); foreach (DateTime day in EachDay(StartDate, EndDate)) { datetimerange.Add(day.Date); Session["SelectedDatess"] = datetimerange; } When I displays it to a list box the date looks like 8/28/2012 12:00:00 whereas I just want to display 8/28/2012. How can I change the format of the date to MM/dd/yyyy?

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  • Allow alphanumeric, punctuation, and spaces

    - by bccarlso
    I'm pretty new to regular expressions, and MAN do they give me a headache. They are so intimidating! For an email campaign I'm doing, a user will click a link out of the email with a few URL parameters filled in for them, to make filling out a form easier. I want to prevent any injection hacks or whatever it's called, but need to allow the $_GET parameters to be alphanumeric, have punctuation, and have spaces. If someone has a good method for this, I'd appreciate it, but right now I have: foreach($_GET as $m=>$n) { $get[$m] = preg_replace('(^[a-z0-9 \-\_\.]+)i',' ',$n); } I would like to be able to replace all characters NOT found with this regular expression, which I believe I use ?!, but I can't get that to work either. Any help in getting this to work would be appreciated!

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  • How to import datarow from one dataset to another?

    - by Disciple
    Hi, I want to copy the row to the new dataset if the previous value in second column isn't the same as the current one (i.e this dataset should have rows with unique values): DataTable tbl = new DataTable(); DataTable tmpTable = ds.Tables[0]; for( var rowIndex = 0; rowIndex < ds.Tables[0].Rows.Count; rowIndex++ ) { object value = null; foreach (DataRow x in tbl.Rows) { if (ds.Tables[0].Rows[rowIndex][1] == x[1]) { value = ds.Tables[0].Rows[rowIndex][1]; break; } } // value already exists if (value == null) { tbl.ImportRow(ds.Tables[0].Rows[rowIndex]); } } How to do this correctly? Maybe one loop instead 2?

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  • How to: Avoid Inserting Related Entities?

    - by niaher
    I have this schema: I want to insert an Order with OrderItems into database, so I wrote this method: public void SaveOrder(Order order) { using (var repository = new StoreEntities()) { // Add order. repository.Orders.AddObject(order); // Add order items. foreach (OrderItem orderItem in order.OrderItems) { repository.OrderItems.AddObject(orderItem); } repository.SaveChanges(); } } Everything is inserted just fine, except that new Product records are inserted too, which is not what I want. What I want is to insert Order and its OrderItems, without going any further down the object graph. How can that be achieved? Any help is really appreciated, thank you.

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  • How can i return List of directories instead of url's?

    - by user1741587
    I have this function : private List<string> getLinks(HtmlAgilityPack.HtmlDocument document) { List<string> mainLinks = new List<string>(); var linkNodes = document.DocumentNode.SelectNodes("//a[@href]"); if (linkNodes != null) { foreach (HtmlNode link in linkNodes) { var href = link.Attributes["href"].Value; if (href.StartsWith("http://") == true || href.StartsWith("https://") == true || href.StartsWith("www") == true) // filter for http { mainLinks.Add(href); } } } return mainLinks; } Its getting one url and return list of url's. Instead i want that the function will get a directory for example c:\ And it will return me a List of all directories in c:\ Not subsirectories just the directories in c:\ in my case it should be a List with a 14 directories. Meaning in each index in the List a directory. How can i do it ? Tried with Directory and DirectoryInfo but i just got messed up.

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  • C#: Storting Instance of Objects in (Hashtable)

    - by DaGambit
    Hi I tried filling a Hashtable in the following way: ResearchCourse resCourse= new ResearchCourse();//Class Instance resCourse.CID="RC1000"; resCourse.CName="Rocket Science"; TaughtCourse tauCourse= new TaughtCourse();//Class Instance tauCourse.CID="TC1000"; tauCourse.CName="Marketing"; Hashtable catalog = new Hashtable(); catalog.Add("1", "resCourse.CID"); catalog.Add("2", "tauCourse.CID"); foreach (DictionaryEntry de in catalog) { Console.WriteLine("{0}, {1}", de.Key, de.Value); } Output Result to Console was: 1, resCourse.CID 2, tauCourse.CID Expected Result to be: 1, RC1000 2, TC2000 What am I misunderstanding about Hashtables? What is an easy way for the Hashtable to store the class instance and its values?

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  • C#, get all collection properties from an object

    - by Eatdoku
    Hi, I have a class with 3 List collections like the following. I am trying to have a logic which will iterate through the object's "collection" properties and do some operation using the data stored in those collections. I am just wondering if there is an easy way of doing it using foreach. thanks public class SampleChartData { public List<Point> Series1 { get; set; } public List<Point> Series2 { get; set; } public List<Point> Series3 { get; set; } public SampleChartData() { Series1 = new List<Point>(); Series2 = new List<Point>(); Series3 = new List<Point>(); } }

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  • Perl Matching ,Extracting , and printing emails

    - by user3448790
    How do I match an email using the The Official Standard: RFC 5322 in a html source code, after that i will extract the strings that are matched ONLY, and print out inly the emails, and not the whole source code? Is there any examples and output to illustrate this? Thnaks! elsif ($_ eq '-dDATA' or $_ eq '-ft') { opendir(DIR,'DATA'); my(@dir) = grep /\.htm/, readdir (DIR); closedir(DIR); my $value = join(@dir); print "$value\n"; foreach my $movies (@dir) { open (my $FHD, "<", "DATA/$movies") || die $!; print <$FHD>; } } }

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  • Converting keys of an array/object-tree to lowercase

    - by tstenner
    Im currently optimizing a PHP application and found one function being called around 10-20k times, so I'd thought I'd start optimization there. function keysToLower($obj) { if(!is_object($obj) && !is_array($obj)) return $obj; foreach($obj as $key=>$element) { $element=keysToLower($element); if(is_object($obj)) { $obj->{strtolower($key)}=$element; if(!ctype_lower($key)) unset($obj->{$key}); } else if(is_array($obj) && ctype_upper($key)) { $obj[strtolower($key)]=$element; unset($obj[$key]); } } return $obj; } Most of the time is spent in recursive calls (which are quite slow in PHP), but I don't see any way to convert it to a loop. What would you do?

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  • any simple jquery <table> paginators

    - by Mike
    I'm looking for a jquery plugin so I can paginate my html tables (the content of which is generated by a jsp c:forEach). But so far I haven't found anything that worked. The plugin doesn't need to be fancy, in fact something like the first example on http://dl.dropbox.com/u/4151695/html/pajinate-0.2/examples/example1.html would do fine. I'm still very new to jquery so I don't have the knowledge yet to write one myself. So does anyone have any pointers where I could find one?

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  • How to seperate database entries and display them as individual records using PHP?

    - by Clark
    I used to have database entries separated by ampersands (&), but this was causing certain search issues so I decided to encapsulate my entries on both sides by $ and & symbols like: $this& But I am having trouble displaying all the entries of a cell as indiivdual records. Before I used: $unsplitItems = $row['files']; $files = explode("@", $unsplitItems); foreach ($files as $file) { if(strlen($file)) { echo "<li>$file</li>"; } } Any idea how I can split my records and display all the items in the array as individual entries?

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  • Retrieving data from simplexml_load_file

    - by Kole Odd
    Working with the simplexml_load_file() function, I get a side effect. To understand what I mean, see this code: $result = simplexml_load_file($xml_link); $arr = array(); foreach ($result->element as $elem) { $arr[] = $elem->number[0]; } print_r($arr); Output: Array ( [0] => SimpleXMLElement Object ( [0] => 330411879136 ) [1] => SimpleXMLElement Object ( [0] => 370346266228 ) [2] => SimpleXMLElement Object ( [0] => 370346266223 ) ) How would I store data into the array so that output would look like so: Array ( [0] => 330411879136 [1] => 370346266228 [2] => 370346266223 )

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  • How to access controls collection of dynamically loaded aspx page?

    - by Naasir
    Let's say I have two webforms, A.aspx and B.aspx, where B.aspx contains some simple web controls such as a textbox and a button. I'm trying to do the following: When A.aspx is requested, I want to dynamically call and load B.aspx into memory and output details of all the controls contained in B.aspx. Here is what I tried in the codebehind for A.aspx: var compiledType = BuildManager.GetCompiledType("~/b.aspx"); if (compiledType != null) { var pageB = (Page)Activator.CreateInstance(compiledType); } foreach (var control in pageB.Controls) { //output some details for each control, like it's name and type... } When I try the code above, the controls collection for pageB is always empty. Any ideas on how I can get this to work? Some other important details: both webforms utilize a master page (so the web controls in b.aspx are actually placed within a "content" tag) I've also tried using BuildManager.CreateInstanceFromVirtualPath. No luck.

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  • C# Get memberinfo for custom attribute's target

    - by Waldo Bronchart
    Given a custom attribute, I want to get the name of its target: public class Example { [Woop] ////// basically I want to get "Size" datamember name from the attribute public float Size; } public class Tester { public static void Main() { Type type = typeof(Example); object[] attributes = type.GetCustomAttributes(typeof(WoopAttribute), false); foreach (var attribute in attributes) { // I have the attribute, but what is the name of it's target? (Example.Size) attribute.GetTargetName(); //?? } } } Hope it's clear!

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  • Intersection between sets containing different types of variables

    - by Gacek
    Let's assume we have two collections: List<double> values List<SomePoint> points where SomePoint is a type containing three coordinates of the point: SomePoint { double X; double Y; double Z; } Now, I would like to perform the intersection between these two collections to find out for which points in points the z coordinate is eqal to one of the elements of values I created something like that: HashSet<double> hash = new HashSet<double>(points.Select(p=>p.Z)); hash.IntersectWith(values); var result = new List<SomePoints>(); foreach(var h in hash) result.Add(points.Find(p => p.Z == h)); But it won't return these points for which there is the same Z value, but different X and Y. Is there any better way to do it?

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  • How can I display more info in an error message when using NUnit Assert in a loop?

    - by Ian
    Consider the following code: [Test] public void WidgetTest() { foreach (Widget widget in widgets) { Assert.AreEqual(0, widget.SomeValue); } } If one of the asserts fails, I will get a very unhelpful error message like the one below: 1) Test Failure : WidgetTest.TestSomeValue Expected: 0 But was: 1 at WidgetTest.TestSomeValue() So, the question is, how can I get NUnit to display more useful info, such as the name of the widget, or the iteration of the loop, etc? Even a line number would be more helpful, since this is run in automated manner and I'd like to be able to spot the failing assert without debugging into the code.

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  • Velocity sort XML file with dynamic-elements

    - by shr_deadman
    Let's say I have a XML file wich looks like this: <root> <dynamic-element name='name' type='text' repeatable='true'> <dynamic-element name='prename' type='text' repeatable='false'> </dynamic element> </dynamic-element> </root> In Liferay the XML file will be filled with input. At the and I will have multiple $name-elements. The question is how I can sort the elements before I print them out with #foreach ($name in $name.getSiblings()) $name.prename.getData() $name.getData() #end thanks, Matthew

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  • Problem with access to file

    - by phenevo
    Hi, I have winforms application and it has reference to library MyLibrary. MyLibrary has method: string[] GiveMeNamesOfAirports() { string[] lines= File.ReadLines("airports.txt"); foreach(string line in lines) ... } And when I run my Winforms application: I get error: file couldn't be find. I was trying other function: string[] lines = File.ReadAllLines(Path.Combine(System.Environment.CurrentDirectory, "airports.txt")); string[] lines = File.ReadAllLines(Path.Combine(Assembly.GetExecutingAssembly().Location, "airports.txt")); string[] lines = File.ReadAllLines(Path.Combine(Assembly.GetAssembly(typeof(Airport)).Location, "airports.txt"));

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  • PHP memcache - check if any server is available in pool?

    - by Industrial
    Hi everyone, I have the following code: $cluster['local'] = array('host' => '192.168.1.1', 'port' => '11211', 'weight' => 50); $cluster['local2'] = array('host' => '192.168.1.2', 'port' => '11211', 'weight' => 50); $this->memcache = new Memcache; foreach ($this->cluster() as $cluster) { $this->memcache->addServer($cluster['host'], $cluster['port'], $this->persistent, $cluster['weight'], 10, 10, TRUE , 'failure' ); } I would like to make a function that checks if any of my servers in my memcache Pool is available. How could this be done?

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  • strange behavior while including a class in php

    - by user1864539
    I'm experiencing a strange behavior with PHP. Basically I want to require a class within a PHP script. I know it is straight forward and I did it before but when I do so, it change the behavior of my jquery (1.8.3) ajax response. I'm running a wamp setup and my PHP version is 5.4.6. Here is a sample as for my index.html head (omitting the jquery js include) <script> $(document).ready(function(){ $('#submit').click(function(){ var action = $('#form').attr('action'); var form_data = { fname: $('#fname').val(), lname: $('#lname').val(), phone: $('#phone').val(), email: $('#email').val(), is_ajax: 1 }; $.ajax({ type: $('#form').attr('method'), url: action, data: form_data, success: function(response){ switch(response){ case 'ok': var msg = 'data saved'; break; case 'ko': var msg = 'Oops something wrong happen'; break; default: var msg = 'misc:<br/>'+response; break; } $('#message').html(msg); } }); return false; }); }); </script> body <div id="message"></div> <form id="form" action="handler.php" method="post"> <p> <input type="text" name="fname" id="fname" placeholder="fname"> <input type="text" name="lname" id="lname" placeholder="lname"> </p> <p> <input type="text" name="phone" id="phone" placeholder="phone"> <input type="text" name="email" id="email" placeholder="email"> </p> <input type="submit" name="submit" value="submit" id="submit"> </form> And as for the handler.php file: <?php require('class/Container.php'); $filename = 'xml/memory.xml'; $is_ajax = $_REQUEST['is_ajax']; if(isset($is_ajax) && $is_ajax){ $fname = $_REQUEST['fname']; $lname = $_REQUEST['lname']; $phone = $_REQUEST['phone']; $email = $_REQUEST['email']; $obj = new Container; $obj->insertData('fname',$fname); $obj->insertData('lname',$lname); $obj->insertData('phone',$phone); $obj->insertData('email',$email); $tmp = $obj->give(); $result = $tmp['_obj']; /* Push data inside array */ $array = array(); foreach($result as $key => $value){ array_push($array,$key,$value); } $xml = simplexml_load_file($filename); // check if there is any data in if(count($xml->elements->data) == 0){ // if not, create the structure $xml->elements->addChild('data',''); } // proceed now that we do have the structure if(count($xml->elements->data) == 1){ foreach($result as $key => $value){ $xml->elements->data->addChild($key,$value); } $xml->saveXML($filename); echo 'ok'; }else{ echo 'ko'; } } ? The Container class: <?php class Container{ private $_obj; public function __construct(){ $this->_obj = array(); } public function addData($data = array()){ if(!empty($data)){ $oldData = $this->_obj; $data = array_merge($oldData,$data); $this->_obj = $data; } } public function removeData($key){ if(!empty($key)){ $oldData = $this->_obj; unset($oldData[$key]); $this->_obj = $oldData; } } public function outputData(){ return $this->_obj; } public function give(){ return get_object_vars($this); } public function insertData($key,$value){ $this->_obj[$key] = $value; } } ? The strange thing is that my result always fall under the default switch statement and the ajax response fit both present statement. I noticed then if I just paste the Container class on the top of the handler.php file, everything works properly but it kind of defeat what I try to achieve. I tried different way to include the Container class but it seem to be than the issue is specific to this current scenario. I'm still learning PHP and my guess is that I'm missing something really basic. I also search on stackoverflow regarding the issue I'm experiencing as well as PHP.net, without success. Regards,

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