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• Designing a data model in VS2010 and generating ORM code, application

  - by Kay Zed

  Simply put: I have a database design in my head and I now want to use Visual Studio 2010 to create a WPF application. Key is to use the VS2010 tools to take much as possible manual work out of my hands. -The database engine is SQLite -ORM probably through DBLINQ -Use of LINQ -The application can create new, empty database instances -Easily maintainable (changes in data model possible) Q- How do I start designing the database model (visually) in Visual Studio 2010? Should this be an xsd? Do I do this in a separate project? Q- Next, how can I make the most use of VS2010 code generation tools to generate a business layer? Q- I suppose the business layer will be added as a Data Source (in another project?) and from there it's a rather generic data binding solution? I tried finding clear examples of this but it's a jungle out there, the hunt for a solution is NOT converging to one clear method.... :_(

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• Silverlight Project - Setting Reference to Copy Local false not working.

  - by cmaduro

  Why is it that when my Silverlight project is built, the output directory contains a bunch of culture specific directories: ar\System.Windows.Controls.resources.dll bg\System.Windows.Controls.resources.dll ca\System.Windows.Controls.resources.dll etc etc etc Also the root of the build output contains: System.Xml.Linq.dll System.windows.Controls.dll I have gone through the projects in my solution and made sure that "Copy Local" is set to false for all the referances of the mentioned dll files. Those 2 files were set to true, but I did switch them to false. Despite my effort to google an answer, I remain stuck.

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• Can a DevExpress XtraGrid be filled using a a Dynamic SELECT statement string

  - by Gerhard Weiss

  Can a DevExpress XtraGrid be filled using a a Dynamic SELECT statement string? i.e. SELECT * FROM Employee or SELECT * FROM Dependents To fill our XtraGrids currently, we use a ORM that creates entities. To do this it takes a lot of steps and time. What is driving me to ask this question is we do a lot of client aquistions where we get hundreds of files. I do not want to create entities for all of these then have to create an XtraGrid for each entity. Ideally if I can just feed it a SELECT statement and the XtraGrid could render it then I could use the XtraGrid very nice data minipulation features (Filter, Group By, etc). If you have any other ideas or suggestions please to not hesitate to post them.

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• Add onchange event to a "locked" field in Dynamics CRM 4

  - by Evgeny

  I'm customising Dynamics CRM 4 and would like to modify the Form for the Case entity to add some JavaScript to the onchange event for the Knowledge Base Article lookup field (kbarticleid_ledit). However, when I click Change Properties for that field I get an error message: This field belongs to a locked section and cannot have its properties modified. How can I get around this and edit it? Is there a workaround similar to customizing the Article view? Or can I hack the DB somehow to "unlock" that field?

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• Control JSON Serialization format of a custom type in .NET

  - by mrjoltcola

  I have a PhoneNumber class that stores a normalized string, and I've defined implicit operators for string <- Phone to simplify treatment of the PhoneNumber as a string. I've also overridden the ToString() method to always return the cleaned version of the number (no hyphens or parentheses or spaces). In any MVC.NET code where I explicitly display the number, I can explicitly call phone.Format(). The problem here is serializing an entity that has a PhoneNumber to JSON; JavaScriptSerializer serializes it as [object Object]. I want to serialize it as a string in (555)555-5555 format. I've looked at writing a custom JavaScriptConverter, but JavaScriptConverter.Serialize() method returns a dictionary of name-value pairs. I don't want PhoneNumber to be treated as an object with fields, I want to simply serialize it as a string.

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• JPA 2.0, hiberante 3.5, jars & persistence.xml location

  - by phmr

  I'm building a desktop application using hibernate 3.5 & JPA 2.0. I have 2 jars, the lib, which defines every entity and DAO, packages looks like this : org.my.package.models org.my.package.models.dao org.my.package.models.utils In org.my.package.utils I defined my hibernate utility class for getting EM & EMF instances, which means the lib is bound to a Persistence Unit name but that's not a problem for now (anyway you can recommend me a better way to manage that) the second jars is built as follow: org.my.package.app META-INF is defined on the root of the project which means in my jar I can find this directories directly in the root: META-INF/ META-INF/persistence.xml org/ org/my/ ... org/my/package/app/Main.class META-INF/ When I run the app, hibernate doesn't managed to find persistence.xml it throws an exception something like "package or class for PersistenceUnitName not found". I googled a bit about the problem but I can't get the source code organisation right. Any help ?

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• How do you handle the fetchxml result data?

  - by Luke Baulch

  I have avoided working with fetchxml as I have been unsure the best way to handle the result data after calling crmService.Fetch(fetchXml). In a couple of situations, I have used an XDocument with LINQ to retrieve the data from this data structure, such as: XDocument resultset = XDocument.Parse(_service.Fetch(fetchXml)); if (resultset.Root == null || !resultset.Root.Elements("result").Any()) { return; } foreach (var displayItem in resultset.Root.Elements("result").Select(item => item.Element(displayAttributeName)).Distinct()) { if (displayItem!= null && displayItem.Value != null) { dropDownList.Items.Add(displayItem.Value); } } What is the best way to handle fetchxml result data, so that it can be easily used. Applications such as passing these records into an ASP.NET datagrid would be quite useful.

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• null values from listbox, are not evaluated in the model binding of ASP.NET-MVC

  - by Jorge

  The model validation doesn't evaluates the attributes linked to listbox values if you don't select at least one of them. This way is not possible to do a model evaluation using DataAnnotations in order to inform required values. The controller: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using TestValidation.Models; namespace TestValidation.Controllers { [HandleError] public class HomeController : Controller { private SelectList list = new SelectList(new List<string>() { "Sao Paulo", "Toronto", "New York", "Vancouver" }); public ActionResult Index() { ViewData["ModelState"] = "NOT EVAL"; ViewData["ItemsList"] = list; return View(); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(MyEntity entity) { if (ModelState.IsValid) { ViewData["ModelState"] = "VALID"; } else { ViewData["ModelState"] = "NOT VALID!!!"; } ViewData["ItemsList"] = list; return View(); } public ActionResult About() { return View(); } } } The View: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TestValidation.Models.MyEntity>" %> <asp:Content ID="indexTitle" ContentPlaceHolderID="TitleContent" runat="server"> Home Page </asp:Content> <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server"> <h2> Validation Test</h2> <p> <% using (Html.BeginForm()) {%> <fieldset> <p> ModelState: <%= Html.Encode((string)ViewData["ModelState"])%> </p> <p> <label for="Name"> Name:</label> <%= Html.TextBoxFor(m => m.Name)%> <%= Html.ValidationMessageFor(m => m.Name)%> </p> <p> <label for="ItemFromList"> Items (list):</label> <%= Html.ListBoxFor(m => m.ItemFromList, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromList)%> </p> <p> <label for="ItemFromCombo"> Items (combo):</label> <%= Html.DropDownListFor(m => m.ItemFromCombo, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromCombo)%> </p> <p> <input type="submit" value="Submit" /> </p> </fieldset> <% } %> </asp:Content> The Model: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.ComponentModel.DataAnnotations; namespace TestValidation.Models { public class MyEntity_Validate : ValidationAttribute { public MyEntity_Validate() { this.ErrorMessage = "Validated!. Is <> Toronto"; } public override bool IsValid(object value) { return ((string)value == "Toronto"); } } public class MyEntity { [Required] public string Name { get; set; } [MyEntity_Validate] public string ItemFromList { get; set; } [MyEntity_Validate] public string ItemFromCombo { get; set; } } } Any help would be very much appreciated. Thank you.

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• java enterprise project

  - by darko petreski

  Hi All, All the time we are hearing that java is enterprise. We have read many books about jpa, entity beans and other stuff. All this books explain this technology with some dummy examples. I have not seen a book that explains real problems with enterprise beans, java clients and security! I mean real book not some imaginated stupid examples . Is there any book that describes completely some enterprise system, Its architecture, communication, security, of course the client that uses the distributed components ? I need a book that will cover the flowing: server side components (ejb, jpa) client side java desktop application security (authentication and authorization) web services with complete authentication clustering (we can find for all of this a book, but there is no book that covers all this things in one piece. Also all the books are with dummy samples.) Or may be some project that is documented. Regards, Darko

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• How to perform insert and update with Ado.net dataservices (EF and Inheritance)

  - by Thurein

  Hi, I have an entity model, in which I have a table per type inheritance. There are 3 types, first, Contact, which I defined as abstract in my EF model and the rest are Company and person types which are derived from contact type. Is it possible to perform an insert using ado.net dataservice and asp.net ajax library? I was trying the following client code : dataContext.insertEntity(person, "Contacts"); I was getting this response from server : Error processing request stream. Type information must be specified for types that take part in inheritance. Thanks.

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• Unit Testing & Fake Repository implementation with cascading CRUD operations

  - by Erik Ashepa

  Hi, i'm having trouble writing integration tests which use a fake repository, For example : Suppose I have a classroom entity, which aggregates students... var classroom = new Classroom(); classroom.Students.Add(new Student("Adam")); _fakeRepository.Save(classroom); _fakeRepostiory.GetAll<Student>().Where((student) => student.Name == "Adam")); // This query will return null... When using my real implementation for repository (NHibernate based), the above code works (because the save operation would cascade to the student added at the previous line), Do you know of any fake repository implementation which support this behaviour? Ideas on how to implement one myself? Or do you have any other suggestions which could help me avoid this issue? Thanks in advance, Erik.

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• AutoMapper and SecurityException in IIS

  - by Felipe

  Hi everybody... I'm developing a asp.net mvc application with nhibernate and I would not like to expose my objects mappings with NHibernate, so I created DTO for each entity and I'm trying to convert my Domain objects to DTO and send it to View. So I have in my sollution: ClassLibrary with my Domain (for NHibernate) and DTO objetcs Class library to make a SessionFactory adn Factories in my Project Asp.Net MVC 2 Application So, I download AutoMapper to transform Domain objects in DTO and add a the code to do this in Application_Start of global.asax. When I run in VisualStudio (by pressing F5) it works fine and my dtos are into the view, So when I publish this in IIS, I get a security exception =( in first line of conversion: Mapper.CreateMap(); <--- this line throw exception Mapper.CreateMap(); System.Security.SecurityException: Failed request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. What can I do to resolve this to work in IIS ? When I will publish it on web server, the error will get too :( Thanks Cheers

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• EF4, MVC 3, Azure and Code First or Traditional

  - by RichardAlanA

  I am planning to build a web application using ASP MVC3 that runs on Azure with a SQL Azure back end. I would like to use the Microsoft stack and have no plans to ever change to another stack. I am looking into the use of WCF and WF but that would be in the future. I looked at the traditional and Code First approach to using Entity Framework but I can't see if there is any advantage in using one or the other approach. Sure they each have advantages but for me I don't care if my classes do inherit from EF classes. All I want is to find the most efficient solution. Can anyone out there give me some advice as to which approach might be the best. thanks very much Richard

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• PHP / SimpleXML - Why does Simplexml_load_string() fail to parse Google Weather API xml in Chinese (

  - by John Himmelman

  I'm trying to load parse a Google Weather API response (chinese response). Here is the API call.. http://www.google.com/ig/api?weather=11791&hl=zh-CN // This code fails with the following error $xml = simplexml_load_file('http://www.google.com/ig/api?weather=11791&hl=zh-CN'); ( ! ) Warning: simplexml_load_string() [function.simplexml-load-string]: Entity: line 1: parser error : Input is not proper UTF-8, indicate encoding ! Bytes: 0xB6 0xE0 0xD4 0xC6 in C:\htdocs\weather.php on line 11 Why does loading this response fail? How do I encode/decode the response so that simplexml loads it properly?

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• Lucene.Net support phrases?: What is best approach to tokenize comma-delimited data (atomically) in

  - by Pete Alvin

  I have a database with a column I wish to index that has comma-delimited names, e.g., User.FullNameList = "Helen Ready, Phil Collins, Brad Paisley" I prefer to tokenize each name atomically (name as a whole searchable entity). What is the best approach for this? Did I miss a simple option to set the tokenize delimiter? Do I have to subclass or write my own class that to roll my own tokenizer? Something else? ;) Or does Lucene.net not support phrases? Or is it smart enough to handle this use case automatically? I'm sure I'm not the first person to have to do this. Googling produced no noticeable solutions.

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• ASP.Net MVC 2 Forms Authentication cookieless = "UseUri" while submit autherization fails

  - by rintoantony

  hi, I just started working with ASP.Net MVC 2. I created a new ASP.Net MVC application and created one vehicle controler with a database table connected with LINQ. Then created forms authentication mechanism for the application and tried to use the uri instead of cookies it was working smoothly but when i submit the form by creating a "Create" view from the controler using the utility it just dont work. The autherization got failed and asking to enter the user name and password again.I had created the authorization mechanism by adding Authorise attribute to the Controller so as to get authorized for all the actions. namespace MVCNEW.Controllers { [Authorize] public class VehicleController : Controller { But if i use the cookies instead of uri it works fine. Thanks in advance...

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• Help me finish this Python 3.x self-challenge.

  - by Hamish Grubijan

  This is not a homework. I saw this article praising Linq library and how great it is for doing combinatorics stuff, and I thought to myself: Python can do it in a more readable fashion. After half hour of dabbing with Python I failed. Please finish where I left off. Also, do it in the most Pythonic and efficient way possible please. from itertools import permutations from operator import mul from functools import reduce glob_lst = [] def divisible(n): return (sum(j*10^i for i,j in enumerate(reversed(glob_lst))) % n == 0) oneToNine = list(range(1, 10)) twoToNine = oneToNine[1:] for perm in permutations(oneToNine, 9): for n in twoToNine: glob_lst = perm[1:n] #print(glob_lst) if not divisible(n): continue else: # Is invoked if the loop succeeds # So, we found the number print(perm) Thanks!

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• Automatically created NSManagedObject subclasses don't use ARC

  - by Jordan

  My project is ARC enabled (the build settings have Objective-C Reference Counting set to YES). There are no file exceptions to this, it is enabled project wide. (Latest stable version of Xcode). When I create an NSManagedObject subclass via File New for a Core Data entity, the generated header uses the following in its property declarations: @property (nonatomic, retain) But 'retain' is not ARC!! Is this a bug, or is there something I'm missing or not understanding? There are no build warnings - if this is a bug though, how can I remedy it?

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• Using HTMLAgility Pack to Extract Links

  - by Soham

  Hi Folks, Consider this simplest piece of code: using System; using System.Collections.Generic; using System.Linq; using System.Text; using HtmlAgilityPack; namespace WebScraper { class Program { static void Main(string[] args) { HtmlDocument doc = new HtmlDocument(); doc.LoadHtml("http://www.google.com"); foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]")) { } } } } This effectively doesnt do anything at all, and is copied/inspired from various other StackOverflow questions like this. When compiling this, there is a runtime error which says "Object reference not set to an instance of an object." highlighting the foreach line. I can't understand, why the environment has become irritable to this humble,innocent and useless piece of code. I would also like to know, does HTMLAgilityPack accept HTML classes as nodes?

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• How do I get fluent nhibernate to create a varbinary(max) field in sql server

  - by czk

  Hi, How can I get fluent nhibernate to create a varbinary field in a sql server 2005 table that uses a field size of varbinary(max)? At the moment I always get a default of varbinary(8000), which isn't big enough as i'm going to be storing image files. I've tried using CAstle.ActiveRecord but havent had any success yet. [ActiveRecord] public class MyFile : Entity { public virtual string FileName { get; set; } public virtual string FileType { get; set; } public virtual int FileVersion { get; set; } public virtual int FileLength { get; set; } [Property(ColumnType = "BinaryBlob", SqlType = "VARBINARY(MAX)")] public virtual byte[] FileData { get; set; } } Been failing at finding a solution for hours now, so thanks in advance czk

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• Accessing unbound DetailsView cell values when Detailsview DefaultMode is Edit

  - by Nickson

  i have a DetailsView that is populated by a Linq to Entities query. Example query is below. Dim Record = From L In db.MyRecords _ Where L.RecordID = 100 _ Select ID = L.RecordID, L.column1, L.column2, L.column3, L.column4 DetailsView2.DataSource = Record DetailsView2.DataBind() The defaultMode for the DetailsView is Edit. Now if this Detailsview was bound to a datasource control, i would convert a column to a templateColumn and programatically access cell values like so Dim NameTextBox As System.Web.UI.WebControls.TextBox = CType(DetailsView2.Rows(1).Cells(1).FindControl("TextBox1"), System.Web.UI.WebControls.TextBox) such that i can then say NameTextBox.Text to get the Name value. But the problem i have is, with this detailsview which is unbound, i have no column at design time to convert to a template, and yet i want to access its cell values. help is appreciated.

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• Inserting the record into Database through JPA

  - by vinay123

  In my code I am using JSF - Front end , EJB-Middile Tier and JPA connect to DB.Calling the EJB using the Webservices.Using MySQL as DAtabase. I have created the Voter table in which I need to insert the record. I ma passing the values from the JSF to EJB, it is working.I have created JPA controller class (which automatcally generates the persistence code based on the data base classes) Ex: getting the entity manager etc., em = getEntityManager(); em.getTransaction().begin(); em.persist(voter); em.getTransaction().commit(); I have created the named query also: @NamedQuery(name = "Voter.insertRecord", query = "INSERT INTO Voter v values v.voterID = :voterID,v.password = :password,v.partSSN = :partSSN, v.address = :address, v.zipCode = :zipCode,v.ssn = :ssn, v.vFirstName = :vFirstName,v.vLastName = :vLastName,v.dob = :dob"), But still not able to insert the record? Can anyone help me in inserting the record into the Data base through JPA.(Persistence object)?

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• .Net MEF newbie question

  - by steve.macdonald

  I am missing something basic when it comes to using MEF. I got it working using samples and a simple console app where everything is in the same assembly. Then I put some imports and exports in a separate project which contains various entities. I want to use these entities in an MS Test, but the composition is never actually done. When I move the composition stuff into the constructor of an entity in question it works, but that's obviously wrong. Does GetExecutingAssembly only "see" the test process? What am I missing re containers? I tried putting the container in a Using in the test without luck. The MEF docs are still very scant and I can't find a simple example of an application (or MS Test) which uses entities from a different project...

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• Invalid receiver type 'NSUInteger'

  - by CJ

  I have a Core Data entity whose header file looks like this: @interface MyEntity : NSManagedObject { } @property (nonatomic, retain) NSNumber * index; @end And it's implementation file looks like this: @implementation MyEntity @dynamic index; @end Now, I have a piece of code that looks like this: NSArray* selectedObects = [myEntityArrayController selectedObjects]; NSUInteger theIndex = [[[selectedObects objectAtIndex:0] index] unsignedIntegerValue]; The 'myEntityArrayController' object is a NSArrayController which manages all entities of MyEntity. This code executes correctly, however XCode always gives the warning "Invalid receiver type 'NSUInteger'" for the last line of code. For some reason, XCode thinks that the index method returns a NSUInteger. I'm not sure why it thinks this, because 'objectAtIndex' returns an object of type 'id'. I've cleaned the project several times, and these warnings have hung around for a while. Any suggestions are appreciated.

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• "SELECT ... FOR UPDATE" not working for Hibernate and MySQL

  - by Andres Rodriguez

  Hi, We have a system in which we must use pessimistic locking in one entity. We are using hibernate, so we use LockMode.UPGRADE. However, it does not lock. The tables are InnoDB We have checked that locking works correctly in the database (5.0.32), so this bug http://bugs.mysql.com/bug.php?id=18184 seems to be no problem. We have checked that datasource includes the autoCommit = false parameter. We have checked that the SQL hibernate (version 3.2) generates includes the " FOR UPDATE". Thanks,

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