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  • Selenium: How to enter white space as the value of a text field?

    - by Andrew
    I have a form text field that is being populated with a default value. I would like to clear the value and enter white space to assert that the expected validation occurs. I am using Selenium RC and the PHPUnit Selenium extension. How can I achieve this? Note: I have already tried doing these, but they do not work: $this->type('FirstName', " "); //spaces $this->type('FirstName', "\t"); //tab character They clear the value from the field, but they do not enter the white space into the field.

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  • How To Get A Field Value Based On The Max Of Another Field In VFP v8.0

    - by DaveB
    So, I have a table and I want to get the value from one field in the record with the greatest DateTime() value in another field and where still another field is equal to a certain value. Example data: Balance Created MeterNumber 7924.252 02/02/2010 10:31:48 AM 2743800 7924.243 02/02/2010 11:01:37 AM 2743876 7924.227 02/02/2010 03:55:50 PM 2743876 I want to get the balance for a record with the greatest created datetime for a specific meter number. In VFP 7 I can use: SELECT a.balance ,MAX(a.created) FROM MyTable a WHERE a.meternumber = '2743876' But, in the VFP v8.0 OleDb driver I am using in my ASP.NET page I must conform to VFP 8 which says you must have a GROUP BY listing each non aggregate field listed in the SELECT. This would return a record for each balance if I added GROUP BY a.balance to my query. Yes, I could issue a SET ENGINEBEHAVIOR 70 but I wanted to know if this could be done without having to revert to a previous version?

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  • Are there any concrete examples of where a paralellizing compiler would provide a value-adding benefit?

    - by jamie
    Paul Graham argues that: It would be great if a startup could give us something of the old Moore's Law back, by writing software that could make a large number of CPUs look to the developer like one very fast CPU. ... The most ambitious is to try to do it automatically: to write a compiler that will parallelize our code for us. There's a name for this compiler, the sufficiently smart compiler, and it is a byword for impossibility. But is it really impossible? Can someone provide a concrete example where a paralellizing compiler would solve a pain point? Web-apps don't appear to be a problem: just run a bunch of Node processes. Real-time raytracing isn't a problem: the programmers are writing multi-threaded, SIMD assembly language quite happily (indeed, some might complain if we make it easier!). The holy grail is to be able to accelerate any program, be it MySQL, Garage Band, or Quicken. I'm looking for a middle ground: is there a real-world problem that you have experienced where a "smart-enough" compiler would have provided a real benefit, i.e that someone would pay for? A good answer is one where there is a process where the computer runs at 100% CPU on a single core for a painful period of time. That time might be 10 seconds, if the task is meant to be quick. It might be 500ms if the task is meant to be interactive. It might be 10 hours. Please describe such a problem. Really, that's all I'm looking for: candidate areas for further investigation. (Hence, raytracing is off the list because all the low-hanging fruit have been feasted upon.) I am not interested in why it cannot be done. There are a million people willing to point to the sound reasons why it cannot be done. Such answers are not useful.

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  • How to Key-Value-Observe the rotation of a CALayer?

    - by HelloMoon
    I can access the value like this: NSNumber* rotationZ = [myLayer valueForKeyPath:@"transform.rotation.z"]; But for some reason, if I try to KV-observe that key path, I get a compiler error. First, this is how I try to do it: [myLayer addObserver:self forKeyPath:@"transform.rotation.z" options:0 context:nil]; The compiler tells me: *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ addObserver: forKeyPath:@"rotation.z" options:0x0 context:0x528890] was sent to an object that is not KVC-compliant for the "rotation" property.' what I don't get is, why I can access that z value by KVC key path, but not add an observer to it. Does this make sense? How else could I observe the z value of that matrix? I don't care about the other values of the matrix. Only the z rotation. Any other way to access and observe it?

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  • How do I pass a DBNull value to a parameterized SELECT statement?

    - by Dan
    I have a SQL statement in C# (.NET Framework 4 running against SQL Server 2k8) that looks like this: SELECT [Column1] FROM [Table1] WHERE [Column2] = @Column2 The above query works fine with the following ADO.NET code: DbParameter parm = Factory.CreateDbParameter(); parm.Value = "SomeValue"; parm.ParameterName = "@Column2"; //etc... This query returns zero rows, though, if I assign DBNull.Value to the DbParameter's Value member even if there are null values in Column2. If I change the query to accommodate the null test specifically: SELECT [Column1] FROM [Table1] WHERE [Column2] IS @Column2 I get an "Incorrect syntax near '@Column2'" exception at runtime. Is there no way that I can use null or DBNull as a parameter in the WHERE clause of a SELECT statement?

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  • Jquery Plugins/Autocomplete Special Char problem

    - by Yetkin EREN
    Hi; i use that plugin for autocomplate; docs.jquery.com/Plugins/Autocomplete but i have a problem with spacial chars. if a special char first char of a word, this char has being ignored and if its not first char, chars before that has being ignored. for example: "slk" cant found but if i type "lk" "slk" found and if i type öd "aöd" found. i made a test page; http://www.yetkineren.com/Autocomplete/oto.html and tahts the code thanks.. <html> <head> <meta http-equiv="Content-Language" content="tr"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-9"> <script src="http://code.jquery.com/jquery-latest.js"></script> <link rel="stylesheet" href="jquery.autocomplete.css" type="text/css" /> <script type="text/javascript" src="encoder.js"></script> <script type="text/javascript" src="Scripts/jquery.bgiframe.min.js"></script> <script type="text/javascript" src="Scripts/jquery.autocomplete.js"></script> <script> $(document).ready(function(){ var gata=[ {"text": '21.png resmi aöd', "value": '21.png'}, {"text": '21.png resmi cöd', "value": '21.png'}, {"text": '21.png resmi acd', "value": '21.png'}, {"text": '21.png resmi aéd', "value": '21.png'}, {"text": '42.png resmi ésd', "value": '42.png'}, {"text": '63.png resmi aId', "value": '63.png'}, {"text": '34.png resmi Çsd', "value": '34.png'}, {"text": '65.png resmi jkl', "value": '65.png'}, {"text": '65.png resmi Gkl', "value": '65.png'}, {"text": '65.png resmi ökl', "value": '65.png'}, {"text": '65.png resmi slk', "value": '65.png'}, {"text": '65.png resmi lsk', "value": '65.png'}, {"text": '65.png resmi slk', "value": '65.png'}, {"text": '36.png resmi &#351;lk', "value": '36.png'} ]; $('#eksampil').autocomplete(gata, { width: 300, scroll: true, scrollHeight: 300, matchContains: "word", mustMatch: true, formatItem: function(row, i) { return i+". result <img src='images/" + row.value + "'/> " + row.text }, formatMatch: function(row) { //Encoder.EncodeType="entity"; return row.text //Encoder.EncodeType="entity"; //Encoder.htmlDecode( //Encoder.htmlEncode(i); }, formatResult: function(row) { return row.text } }); }); </script> </head> <body> <br> type "re" for see all: <input id="eksampil" /><br> </body> </html>

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  • How do you add a boolean attribute in asp.net mvc?

    - by bmavity
    I'm trying to output the following html using an html helper in asp.net mvc 2: <input type="text" id="Name" name="Name" value="" autofocus /> I'm using this code now: <%= Html.TextBoxFor(x => x.Name) %> and I've tried // results in <input ... autofocus="" /> <%= Html.TextBoxFor(x => x.Email, new { autofocus="" }) %> // does not compile <%= Html.TextBoxFor(x => x.Email, new { autofocus=null }) %> Is there any way to accomplish what I'm looking for using an html helper?

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  • Boolean data type size and want to print its value?

    - by Vineet
    I want to know data data type of boolean , i used VSIZE() function but it is not working for boolean and Want to print and store boolean value into table. Please let me know how oracle store boolean value ,is there any other way to see data type and value for boolean variable. ERROR " expression is of wrong type" DECLARE a boolean; b number(7):=7; c number(2):=2; BEGIN a:=bc; select vsize(a) into b from dual; dbms_output.put_line(b); END;

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  • Need advice on framework design: how to make extending easy

    - by beginner_
    I'm creating a framework/library for a rather specific use-case (data type). It uses diverse spring components, including spring-data. The library has a set of entity classes properly set up and according service and dao layers. The main work or main benefit of the framework lies in the dao and service layer. Developers using the framework should be able to extend my entity classes to add additional fields they require. Therefore I made dao and service layer generic so it can be used by such extended entity classes. I now face an issue in the IO part of the framework. It must be able to import the according "special data type" into the database. In this part I need to create a new entity instance and hence need the actual class used. My current solution is to configure in spring a bean of the actual class used. The problem with this is that an application using the framework could only use 1 implementation of the entity (the original one from me or exactly 1 subclass but not 2 different classes of the same hierarchy. I'm looking for suggestions / desgins for solving this issue. Any ideas?

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  • Flex ; get the value of RadioButton inside a FormItem

    - by numediaweb
    Hi, I'm working on Flash Builder with latest flex SDK. I have a problem getting the value radioButton of the selceted radio button inside a form: <mx:Form id="form_new_contribution"> <mx:FormItem label="Contribution type" includeIn="project_contributions"> <mx:RadioButtonGroup id="myG" enabled="true" /> <mx:RadioButton id="subtitle" label="subtitle" groupName="{myG}" value="subtitle"/> <mx:RadioButton id="note" label="notes / chapters" groupName="{myG}" value="note"/> </mx:FormItem> </mx:Form> the function is: protected function button_add_new_clickHandler(event:MouseEvent):void{ Alert.show(myG.selectedValue.toString()); } I tried also: Alert.show(myG.selection.toString()); bothe codes show error: TypeError: Error #1009: Cannot access a property or method of a null object reference. and if It only works if I put : Alert.show(myG.toString()); it alerts : Object RadioButtonGroup thanx for any hints, and sorry for the long message :)

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  • D3 fisheye on width on bar chart

    - by Dexter Tan
    i have been trying to create a vertical bar chart with a d3 fisheye cartesian distortion with only the x-axis being distorted. I have succeeded in distorting the x position of the vertical bars on mouseover with the following code: var maxMag = d3.max(dataset, function(d) { return d.value[10]; }); var minDate = d3.min(dataset, function(d) { return new Date(d.value[1], d.value[2]-1, d.value[3]).getTime(); }); var maxDate = d3.max(dataset, function(d) { return new Date(d.value[1], d.value[2]-1, d.value[3]).getTime(); }); var yScale = d3.scale.linear().domain([0, maxMag]).range([0, h]); var xScale = d3.fisheye.scale(d3.scale.linear).domain([minDate, maxDate]).range([0, w]).focus(w/2); var bar = svg.append("g") .attr("class", "bars") .selectAll(".bar") .data(dataset) .enter().append("rect") .attr("class", "bar") .attr("y", function(d) { return h - yScale(d.value[10]); }) .attr("width", w/dataset.length) .attr("height", function(d) { return yScale(d.value[10]); }) .attr("fill", function(d) { return (d.value[10] <= 6? "yellow" : "orange" ); }) .call(position); // Positions the bars based on data. function position(bar) { bar.attr("x", function(d) { var date = null; if (d.date != null) { date = d.date; } else { date = new Date(d.value[1],0,1); if (d.value[2] != null) date.setMonth(d.value[2]-1); if (d.value[3] != null) date.setMonth(d.value[3]); d.date = date; } return xScale(date.getTime()); }); } svg.on("mousemove", function() { var mouse = d3.mouse(this); xScale.distortion(2.5).focus(mouse[0]); bar.call(position); }); However at this point, applying fisheye on the width remains a mystery to me. I have tried several methods like using a fisheye scale for width however it does not work as expected. What i wish to do is to have the width of a bar expand on mouseover, the same way a single vertical bar is singled out on mouseover with the cartesian distortion. Any clues or help will be much appreciated! edit: http://dexter.xumx.me to view the visualisation i am talking about for easier understanding!

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  • Selected option in view when SIZE is greater than 1

    - by joe
    How do you get the selected option to be in view on page load? <select name="whatever" size="5"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7" selected>7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> </select>

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  • Ruby: change each value in a hash with something like #collect for arrays?

    - by Adam Nonymous
    Hi! I'd like to replace each value in a hash with value.some_method. For example in a simple hash {"a" = "b", "c" = "d"} every value should be .upcase-d so it looks like {"a" = "B", "c" = "D"}. I tried #collect and #map but always just get arrays back. Is there an 'elegant' way to do this? Thanks in advance, Adam Nonymous UPDATE: Damn, I forgot: The hash is in an instance variable which should not be changed. I need a new hash with the changed values, but would prefer not to define that variable explicitly and then loop over the hash filling it. Something like new_hash = hash.magic {...} ;)

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  • Why am I getting "Enter Parameter Value" when running my MS Access query?

    - by DanM
    In my query, I use the IIF function to assign either "Before" or "After" to a field named BeforeOrAfter using AS. When I run this query, however, the "Enter Parameter Value" dialog appears, requesting a value for BeforeOrAfter. If I remove BeforeOrAfter DESC from the ORDER BY clause, I don't get the dialog. Here is the offending query: SELECT d.Scenario, e.Event, IIF(d.LogTime < e.Time, 'Before','After') AS BeforeOrAfter, d.HeartRate FROM Data d INNER JOIN Events e ON d.Scenario = e.Scenario WHERE e.Include = Yes ORDER BY d.Scenario, e.Id, BeforeOrAfter DESC Question: Why is my AS BeforeOrAfter not being recognized by the ORDER BY clause? Why does it ask me to enter a parameter value for "BeforeOrAfter" when I run this query? Note: I tried using brackets, single quotes, double quotes, etc., but none of that made any difference.

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  • Caller Info Attributes in C# 5.0

    - by Jalpesh P. Vadgama
    In c# 5.0 Microsoft has introduced a Caller information attribute. It’s a new feature that is introduced in C# 5.0 and very useful if you want to log your code activities. With the help of this you can implement the log functionality very easily. It can help any programmer in tracing, debugging and diagnostic of any application. With the help of Caller Information we can get following information over there. CallerFilePathAttribute: With help of  this attribute we can get full path of source file that contains caller. This will be file path from which contains caller at compile time. CallerLineNumberAttribute:  With the help of this attribute we can get line number of source file which the method is called. CallerMemberNameAttribute: With the help of this attribute we can get the method or property name of the caller. Read more

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  • How to avoid repetition when working with primitive types?

    - by I82Much
    I have the need to perform algorithms on various primitive types; the algorithm is essentially the same with the exception of which type the variables are. So for instance, /** * Determine if <code>value</code> is the bitwise OR of elements of <code>validValues</code> array. * For instance, our valid choices are 0001, 0010, and 1000. * We are given a value of 1001. This is valid because it can be made from * ORing together 0001 and 1000. * On the other hand, if we are given a value of 1111, this is invalid because * you cannot turn on the second bit from left by ORing together those 3 * valid values. */ public static boolean isValid(long value, long[] validValues) { for (long validOption : validValues) { value &= ~validOption; } return value != 0; } public static boolean isValid(int value, int[] validValues) { for (int validOption : validValues) { value &= ~validOption; } return value != 0; } How can I avoid this repetition? I know there's no way to genericize primitive arrays, so my hands seem tied. I have instances of primitive arrays and not boxed arrays of say Number objects, so I do not want to go that route either. I know there are a lot of questions about primitives with respect to arrays, autoboxing, etc., but I haven't seen it formulated in quite this way, and I haven't seen a decisive answer on how to interact with these arrays. I suppose I could do something like: public static<E extends Number> boolean isValid(E value, List<E> numbers) { long theValue = value.longValue(); for (Number validOption : numbers) { theValue &= ~validOption.longValue(); } return theValue != 0; } and then public static boolean isValid(long value, long[] validValues) { return isValid(value, Arrays.asList(ArrayUtils.toObject(validValues))); } public static boolean isValid(int value, int[] validValues) { return isValid(value, Arrays.asList(ArrayUtils.toObject(validValues))); } Is that really much better though? Any thoughts in this matter would be appreciated.

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  • how to check whether some entered InnerText is present in an XML or not and to give an exception?

    - by Damodar
    Hey all, I have written a code in C# - XML which checks whether a value is there or not in a given XML document and prints the value and the particular tag associated with the value. When we enter the Value of the Inner Text it will look for the value in the document and find it. I dont understand what exception to catch when the entered value is not there in the document. I tried doing like this but it is not working. 1. if (inpXMLString != AppChildNode.InnerText) throw new InvalidDataException("The entered value" + " " + inpXMLString + " " + "doesnot exist"); Here : inpXMLstring = entered value; AppChildNode.InnerText = value of the tags searched. 2. catch (System.Xml.XmlException e1) { Console.WriteLine(e1.Message); } this does not give any exception when the entered value is not there in the XML document. Please help me in this regard.

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  • What common interface would be appropriate for these game object classes?

    - by Jefffrey
    Question A component based system's goal is to solve the problems that derives from inheritance: for example the fact that some parts of the code (that are called components) are reused by very different classes that, hypothetically, would lie in a very different branch of the inheritance tree. That's a very nice concept, but I've found out that CBS is often hard to accomplish without using ugly hacks. Implementations of this system are often far from clean. But I don't want to discuss this any further. My question is: how can I solve the same problems a CBS try to solve with a very clean interface? (possibly with examples, there are a lot of abstract talks about the "perfect" design already). Context Here's an example I was going for before realizing I was just reinventing inheritance again: class Human { public: Position position; Movement movement; Sprite sprite; // other human specific components }; class Zombie { Position position; Movement movement; Sprite sprite; // other zombie specific components }; After writing that I realized I needed an interface, otherwise I would have needed N containers for N different types of objects (or to use boost::variant to gather them all together). So I've thought of polymorphism (move what systems do in a CBS design into class specific functions): class Entity { public: virtual void on_event(Event) {} // not pure virtual on purpose virtual void on_update(World) {} virtual void on_draw(Window) {} }; class Human : public Entity { private: Position position; Movement movement; Sprite sprite; public: virtual void on_event(Event) { ... } virtual void on_update(World) { ... } virtual void on_draw(Window) { ... } }; class Zombie : public Entity { private: Position position; Movement movement; Sprite sprite; public: virtual void on_event(Event) { ... } virtual void on_update(World) { ... } virtual void on_draw(Window) { ... } }; Which was nice, except for the fact that now the outside world would not even be able to know where a Human is positioned (it does not have access to its position member). That would be useful to track the player position for collision detection or if on_update the Zombie would want to track down its nearest human to move towards him. So I added const Position& get_position() const; to both the Zombie and Human classes. And then I realized that both functionality were shared, so it should have gone to the common base class: Entity. Do you notice anything? Yes, with that methodology I would have a god Entity class full of common functionality (which is the thing I was trying to avoid in the first place). Meaning of "hacks" in the implementation I'm referring to I'm talking about the implementations that defines Entities as simple IDs to which components are dynamically attached. Their implementation can vary from C-stylish: int last_id; Position* positions[MAX_ENTITIES]; Movement* movements[MAX_ENTITIES]; Where positions[i], movements[i], component[i], ... make up the entity. Or to more C++-style: int last_id; std::map<int, Position> positions; std::map<int, Movement> movements; From which systems can detect if an entity/id can have attached components.

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  • mongo_mapper custom data types for localization

    - by rick
    hi i have created a LocalizedString custom data type for storing / displaying translations using mongo_mapper. This works for one field but as soon as i introduce another field they get written over each and display only one value for both fields. The to_mongo and from_mongo seem to be not workings properly. Please can any one help with this ? her is the code : class LocalizedString attr_accessor :translations def self.from_mongo(value) puts self.inspect @translations ||= if value.is_a?(Hash) value elsif value.nil? {} else { I18n.locale.to_s => value } end @translations[I18n.locale.to_s] end def self.to_mongo(value) puts self.inspect if value.is_a?(Hash) @translations = value else @translations[I18n.locale.to_s] = value end @translations end end Thank alot Rick

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  • Clear Input onFocus with Google Custom Search

    - by Wes
    I'm moving a sites search over to google custom search. The old input for text looks like this: <input type="text" value="Search this website..." name="s" id="searchbox" onfocus="if (this.value == 'Search this website...') {this.value = '';}" onblur="if (this.value == '') {this.value = 'Search this website...';}" /> Now I need to Have the attr 'name' as 'q', like so: <input type="text" value="Search this website..." name="q" id="searchbox" onfocus="if (this.value == 'Search this website...') {this.value = '';}" onblur="if (this.value == '') {this.value = 'Search this website...';}" /> The odd thing is that when I swap the name over to q, I'm unable to clear the search box on focus. Am I missing something super easy?

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  • Trying to pass the input value in the query string but failing why?

    - by Ahmad Fouad
    Hello, I have this code in the page. <input type="text" value="Enter your video URL here..." size="30" class="video_url" /> <input type="button" value="Preview" class="preview_button" /> <div id="preview"></div> <script type="text/javascript"> (function($) { $(".preview_button").click(function(){ var url = $('.video_url').val(); $("#preview").load('<?php bloginfo('template_directory'); ?>/templates/preview.php?url=' + url); }); }) (jQuery); </script> However on preview.php I can never see the url value. What I am doing wrong?

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  • Are my actual worker threads exceeding the sp_configure 'max worker threads' value?

    Tom Stringer (@SQLife) was working on some HADR testing for a customer to simulate many availability groups and introduce significant load into the system to measure overhead and such. In his quest to do that he was seeing behavior that he couldn’t really explain and so worked with him to uncover what was happening under the covers. Understand Locking, Blocking & Row VersioningRead Kalen Delaney's eBook to understand SQL Server concurrency, and use SQL Monitor to pinpoint excessive blocking and deadlocking. Download free resources.

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  • how to write extension method to check string value is null or not.

    - by kumar
    Hi all, (LocalVariable)ABC.string(Name)= (Idatareader)datareader.GetString(0); this name value is coming from database.. what happening here is if this name value is null while reading it's throwing an exception? I am manually doing some if condition here. I don't want to write a manual condition to check all my variables.. I am doing something like this now.. string abc = (Idatareader)datareader.GetValue(0); if(abc = null) //assiging null else assiging abc value is there something like can we write extension method for this? thanks

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  • LINQ - Select Statement - The null value cannot be assigned to a member with type System.Int32 which

    - by thiag0
    I am trying to achieve the following... _4S.NJB_Request request = (from r in db.NJB_Requests where r.RequestId == referenceId select r).Take(1).SingleOrDefault(); Getting the following exception... Message: The null value cannot be assigned to a member with type System.Int32 which is a non-nullable value type. StackTrace: at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.SingleOrDefault[TSource](IQueryable`1 source) at DAL.SqlDataProvider.MarkNJBPCRequestAsComplete(Int32 referenceId, Int32 processState) I have verified that 'referenceId' does have a value. Anyone know why this would happen in a select statement? Thanks!

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  • Sample domain model for online store

    - by Carel
    We are a group of 4 software development students currently studying at the Cape Peninsula University of Technology. Currently, we are tasked with developing a web application that functions as a online store. We decided to do the back-end in Java while making use of Google Guice for persistence(which is mostly irrelevant for my question). The general idea so far to use PHP to create the website. We decided that we would like to try, after handing in the project, and register a business to actually implement the website. The problem we have been experiencing is with the domain model. These are mostly small issues, however they are starting to impact the schedule of our project. Since we are all young IT students, we have virtually no experience in the business world. As such, we spend quite a significant amount of time planning the domain model in the first place. Now, some of the issues we're picking up is say the reference between the Customer entity and the order entity. Currently, we don't have the customer id in the order entity and we have a list of order entities in the customer entity. Lately, I have wondered if the persistence mechanism will put the client id physically in the order table, even if it's not in the entity? So, I started wondering, if you load a customer object, it will search the entire order table for orders with the customer's id. Now, say you have 10 000 customers and 500 000 orders, won't this take an extremely long time? There are also some business processes that I'm not completely clear on. Finally, my question is: does anyone know of a sample domain model out there that is similar to what we're trying to achieve that will be safe to look at as a reference? I don't want to be accused of stealing anybody's intellectual property, especially since we might implement this as a business.

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