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  • Change LINQ2SQL property in partial class?

    - by Fermin
    Hi, I have a table in my LINQ2SQL diagram with a column called DayOfWeek in table JourneyBooking. The designer.cs has the definition of this as: [Column(Storage="_DayOfWeek", DbType="TinyInt NOT NULL")] public int DayOfWeek { get { return this._DayOfWeek; } set { if ((this._DayOfWeek != value)) { this.OnDayOfWeekChanging(value); this.SendPropertyChanging(); this._DayOfWeek = value; this.SendPropertyChanged("DayOfWeek"); this.OnDayOfWeekChanged(); } } } I have a partial class for the JourneyBooking class. Is it possible to extend/overwrite the above DayOfWeek property with my own property? The issue I am having is that DayOfWeek is 0-6 in C# but 1-7 in SQL, so I was thinking that I could overwrite the DayOfWeek property to subtract or add 1 depending on whether it was a get or set, is this possible or would I need to re-write all of the above code in my partial class?

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  • How to write a Custom DesignerSerializer for an class used by a Activity (WF)

    - by Stefan Steinegger
    I have a type which is used in a WF activity. It should be serialized. It doesn't work out of the box, most probably because of the private setters in that type. I'm not sure if this is the correct way, but I tried to write my own serializer and declared it on my class. [DesignerSerializer( typeof(FooDesignerSerializer), // my custom serializer typeof(WorkflowMarkupSerializer))] public class Foo { public Foo(int value, string name { // ... } public int Value { get; private set; } public string Name { get; private set; } } Is this the easiest way to get it serialized? How do I write this serializer? That's what I got so far: public class FooDesignerSerializer : WorkflowMarkupSerializer { protected override string SerializeToString( WorkflowMarkupSerializationManager serializationManager, object value) { // how to create a valid / XOML-like string? } }

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  • 0xDEADBEEF equivalent for 64-bit development?

    - by Peter Mortensen
    For C++ development for 32-bit systems (be it Linux, Mac OS or Windows, PowerPC or x86) I have initialised pointers that would otherwise be undefined (e.g. they can not immediately get a proper value) like so: int *pInt = reinterpret_cast<int *>(0xDEADBEEF); (To save typing and being DRY the right-hand side would normally be in a constant, e.g. BAD_PTR.) If pInt is dereferenced before it gets a proper value then it will crash immediately on most systems (instead of crashing much later when some memory is overwritten or going into a very long loop). Of course the behavior is dependent on the underlying hardware (getting a 4 byte integer from the odd address 0xDEADBEEF from a user process may be perfectly valid), but the crashing has been 100% reliable for all the systems I have developed for so far (Mac OS 68xxx, Mac OS PowerPC, Linux Redhat Pentium, Windows GUI Pentium, Windows console Pentium). For instance on PowerPC it is illegal (bus fault) to fetch a 4 byte integer from an odd address. What is a good value for this on 64-bit systems?

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  • JQuery Access Elements in Modified DOM

    - by Bernhard
    Hi there, im trying since a long term to use events on elements in my dom which has been added asynchronus. I´ve read something about bind but is there a different Way to etablish something like this? For Example I have this situation. $.getJQUERY(myUrl, {var:value}, function(i, data){ $.each(data.values, function(value){ $("body").append('<div id="div_no_'+i+'">'+value+'</div>); // Here i dont want to place the EventListeners }) }); $("div_no_1").click(function(){ // do something }); Could someone help me to find a way to etablish something like this?? Thank you in advance Great Bernhard

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  • Datatable and Datagridview.

    - by Harikrishna
    I have datatable table like id name address phoneno 1 abc kfjskl 798798 2 bcd kjdsfl 808909 3 899009 fjsh kjllkjl 5 jfkd And I am displaying this value in the datagridview by code dataGridView1.ColumnCount = Table.Columns.Count; dataGridView1.RowCount = Table.Rows.Count; for (int i = 0; i < dataGridView1.RowCount; i++) { for (int j = 0; j < dataGridView1.ColumnCount; j++) { dataGridView1[j, i].Value = Table.Rows[i][j].ToString(); } } Now I don't want to display row that has some missing value like If I will do that then the datagridview will look like 1 abc kfjskl 798798 2 bcd kjdsfl 808909 How can I do that ?

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  • XSLT: If Node = A then set B=1 Else B=2

    - by Larry
    I am looping thru looking at the values of a Node. If Node = B, then B has one of two possible meanings. --If Node = A has been previously found in the file, then the value for A should be sent as 1. --If Node = A has NOT been found in the file, the the value for A should be sent as 2. where file is the xml source to be transformed I cannot figure out how to do this. If I was using a programming language that allowed for a variable to have its value reassigned/changed, then it is easy. But, with XSLT variables are set once.

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  • GIMP: Slightly wrong color when saving images

    - by chris_l
    When I create a new image, fill it with a single color, and save it as *.png or *.jpeg, it gets a slightly wrong color. When I save it as *.gif, the color is correct. Does this have something to do with a color profile? How can I turn it off? (Gimp 2.6.7 on Mac) BTW, when I use "Digital Color Meter" to check the color in the GIMP window, I also get a wrong value - but that value is again a little bit different.

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  • Lack of IsNumeric function in C#

    - by Michael Kniskern
    One thing that has bothered me about C# since its release was the lack of a generic IsNumeric function. I know it is difficult to generate a one-stop solution to detrmine if a value is numeric. I have used the following solution in the past, but it is not the best practice because I am generating an exception to determine if the value is IsNumeric: public bool IsNumeric(string input) { try { int.Parse(input); return true; } catch { return false; } } Is this still the best way to approach this problem or is there a more efficient way to determine if a value is numeric in C#?

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  • Identifying an empty text node with jQuery + Javascript

    - by b. e. hollenbeck
    You'd think this was easy - but I'm having the hardest time with it. Here's what I'm trying to identify: <span class="cw-value-one"></span> Here's what I'm using so far: $('span.cw-value-one').each(function(){ var textNode = $(this).text(); var type = typeof textNode; var len = textNode.length; if($(this).is(':empty')){ $(this).siblings('span.cw-value-two').css({"position": "relative", "left": "1em"}); } }); Ok, so textNode = "", type = string and len = 1 - none of which is helpful in identifying an empty text node, since a has a type of string and length of 1. The jQuery .is(':empty') is not working either. So whow do you identify an empty text node in JQuery or plain ol' Javascript?

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  • Modify Emdeded String in C# compiled exe

    - by nitefrog
    I have an issue where I need to be able to have a compiled exe ( .net 3.5 c# ) that I will make copies of to distribute that will need to change a key for example before the exe is sent out. I cannot compile each time a new exe is needed. This is a thin client that will be used as part of a registration process. Is it possible to add a entry to a resource file with a blank value then when a request comes in have another application grab the blank default thin client, copy it, populate the blank value with the data needed. If yes how? If no do you have any ideas? I have been scratching my head for a few days now and the limitation as due to the boundaries I am required to work in. The other idea I has was to inject the value into a method, which I have no idea how I would even attempt that. Thanks.

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  • SqlParameter contructor compiler overload choice

    - by Ash
    When creating a SqlParameter (.NET3.5) or OdbcParameter I often use the SqlParameter(string parameterName, Object value) constructor overload to set the value in one statement. When I tried passing a literal 0 as the value paramter I was initially caught by the C# compiler choosing the (string, OdbcType) overload instead of (string, Object). MSDN actually warns about this gotcha in the remarks section, but the explanation confuses me. Why does the C# compiler decide that a literal 0 parameter should be converted to OdbcType rather than Object? The warning also says to use Convert.ToInt32(0) to force the Object overload to be used. It confusingly says that this converts the 0 to an "Object type". But isn't 0 already an "Object type"? The Types of Literal Values section of this page seems to say literals are always typed and so inherit from System.Object. This behavior doesn't seem very intuitive given my current understanding? Is this something to do with Contra-variance or Co-variance maybe?

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  • string extension method - Not available through WebMethod

    - by Peter Bridger
    I've written a simple extension method for a web project, it sits in a class file called StringExtensions.cs which contains the following code: using System; using System.Collections.Generic; using System.Linq; using System.Web; /// <summary> /// Useful extensions for string /// </summary> static class StringExtensions { /// <summary> /// Is string empty /// </summary> /// <param name="value"></param> /// <returns></returns> public static bool IsEmpty(this string value) { return value.Trim().Length == 0; } } I can access this extension method from all the classes I have within the App_Code directory. However I have a web page called JSON.aspx that contains a series of [WebMethods] - within these I cannot see the extension method - I must be missing something very obvious!

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  • CRM plugin to execute when opportunity is reopened

    - by splatto
    I need to write a plugin for Dynamics CRM 4.0 that executes when a closed opportunity is reopened in order to change the salesstagecode. My questions are: When I register a new step to the plugin, what attribute(s) should I filter on? What property on the entity should I check the value of? and What should I look for the value of this entity to be so I can determine if the plugin execution should continue? I've typically written asynchronous workflows and my experience writing plugins is still developing, so I'd appreciate any help and clarification that can be offered. Please see below the plugin skeleton I've written public void Execute(IPluginExecutionContext context) { if (context.InputParameters.Properties.Contains("Target") && context.InputParameters.Properties["Target"] is DynamicEntity) { ICrmService service = context.CreateCrmService(false); DynamicEntity entity = (DynamicEntity)context.InputParameters.Properties["Target"]; if (entity.Name == EntityName.opportunity.ToString()) { if (entity.Properties.Contains(/*What Property Should I Check Here?*/)) { //And what value should I be looking for in that property? } } } }

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  • UTF GET parameter codification problem in JSP (JBoss 2.0.1)

    - by GreyMen
    I´m trying to take a string from a GET or POST parameter in JSP with some accents in UTF-8: <%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" % <% request.setCharacterEncoding("UTF-8"); String value = request.getParameter("q"); out.print(value+" | aáa"); % The codification of the hardcoded string is correct but the codification of the value obtrained from the parameter (example: http://whatever/utf.jsp?q=a%E9a) it´s wrong... I have already modify the the server.xml dropping the URIEnconding UTF-8... So I don´t now what I have to do to show the data in the correct format... Any idea?

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  • Formatting a string in Java using class attributes

    - by Jason R. Coombs
    I have a class with an attribute and getter method: public Class MyClass { private String myValue = "foo"; public String getMyValue(); } I would like to be able to use the value of foo in a formatted string as such: String someString = "Your value is {myValue}." String result = Formatter.format(someString, new MyClass()); // result is now "Your value is foo." That is, I would like to have some function like .format above which takes a format string specifying properties on some object, and an instance with those properties, and formats the string accordingly. Is it possible to do accomplish this feat in Java?

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  • Creating keystore for jarsigner programmatically

    - by skayred
    I'm trying to generate keystore with certificate to use it with JarSigner. Here is my code: System.out.println("Keystore generation..."); Security.addProvider(new BouncyCastleProvider()); String domainName = "example.org"; KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA"); SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SUN"); keyGen.initialize(1024, random); KeyPair pair = keyGen.generateKeyPair(); X509V3CertificateGenerator v3CertGen = new X509V3CertificateGenerator(); int serial = new SecureRandom().nextInt(); v3CertGen.setSerialNumber(BigInteger.valueOf(serial < 0 ? -1 * serial : serial)); v3CertGen.setIssuerDN(new X509Principal("CN=" + domainName + ", OU=None, O=None L=None, C=None")); v3CertGen.setNotBefore(new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30)); v3CertGen.setNotAfter(new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 365*10))); v3CertGen.setSubjectDN(new X509Principal("CN=" + domainName + ", OU=None, O=None L=None, C=None")); v3CertGen.setPublicKey(pair.getPublic()); v3CertGen.setSignatureAlgorithm("MD5WithRSAEncryption"); X509Certificate PKCertificate = v3CertGen.generateX509Certificate(pair.getPrivate()); FileOutputStream fos = new FileOutputStream("/Users/dmitrysavchenko/testCert.cert"); fos.write(PKCertificate.getEncoded()); fos.close(); KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType()); char[] password = "123".toCharArray(); ks.load(null, password); ks.setCertificateEntry("hive", PKCertificate); fos = new FileOutputStream("/Users/dmitrysavchenko/hive-keystore.pkcs12"); ks.store(fos, password); fos.close(); It works, but when I'm trying to sign my JAR with this keystore, I get the following error: jarsigner: Certificate chain not found for: hive. hive must reference a valid KeyStore key entry containing a private key and corresponding public key certificate chain. I've discovered that there must be a private key, but I don't know how to add it to certificate. Can you help me?

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  • How should I store an Java Enum in JavaDB?

    - by Jonas
    How should I store an Java Enum in JavaDB? Should I try to map the enums to SMALLINT and keep the values in source code only? The embedded database is only used by a single application. Or should I just store the values as DECIMAL? None of these solutions feels good/robust for me. Is there any better alternatives? Here is my enum: import java.math.BigDecimal; public enum Vat { NORMAL(new BigDecimal("0.25")), FOOD(new BigDecimal("0.12")), BOOKS(new BigDecimal("0.06")), NONE(new BigDecimal("0.00")); private final BigDecimal value; Vat(BigDecimal val) { value = val; } public BigDecimal getValue() { return value; } } I have read other similar questions on this topic, but the problem or solution doesn't match my problem. Enum storage in Database field, Best method to store Enum in Database, Best way to store enum values in database - String or Int

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  • Using JavaScript eval to parse JSON

    - by Quandary
    Question: I'm using eval to parse a JSON return value from one of my WebMethods. I prefer not to add jquery-json because the transfer volume is already quite large. So I parse the JSON return value with eval. Now rumors go that this is insecure. Why ? Nobody can modify the JSOn return value unless they hack my server, in which case I would have a much larger problem anyway. And if they do it locally, JavaScript only executes in their browser. So I fail to see where the problem is. Can anybody shed some light on this, using this concrete example? function OnWebMethodSucceeded(JSONstrWebMethodReturnValue) { var result=eval('(' + JSONstrWebMethodReturnValue + ')') ... // Adding result.xy to a table }

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  • How do you get XML::Pastor to set xsi:type for programmatically generated elements?

    - by Derrick
    I'm learning how to use Perl as an automation test framework tool for a Java web service and running into trouble generating xml requests from the Pastor generated modules. The problem is that when including a type that extends from the required type for an element, the xsi:type is not included in the generated xml string. Say, for example, I want to generate the following xml request from the modules that XML::Pastor generated from my xsd: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <PromptAnswersRequest xmlns="http://mycompany.com/api"> <Uri>/some/url</Uri> <User ref="1"/> <PromptAnswers> <PromptAnswer xsi:type="textPromptAnswer" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <Prompt ref="2"/> <Children> <PromptAnswer xsi:type="choicePromptAnswer"> <Prompt ref="1"/> <Choice ref="2"/> </PromptAnswer> </Children> <Value>totally</Value> </PromptAnswer> </PromptAnswers> </PromptAnswersRequest> What I'm getting currently is this: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <PromptAnswersRequest xmlns="http://mycompany.com/api"> <Uri>/some/url</Uri> <User ref="1"/> <PromptAnswers> <PromptAnswer> <Prompt ref="2"/> <Children> <PromptAnswer> <Prompt ref="1"/> <Choice ref="2"/> </PromptAnswer> </Children> <Value>totally</Value> </PromptAnswer> </PromptAnswers> </PromptAnswersRequest> Here are some relavent snippets from the xsd: <xs:complexType name="request"> <xs:sequence> <xs:element name="Uri" type="xs:anyURI"/> </xs:sequence> </xs:complexType> <xs:complexType name="promptAnswersRequest"> <xs:complexContent> <xs:extension base="api:request"> <xs:sequence> <xs:element name="User" type="api:ref"/> <xs:element name="PromptAnswers" type="api:promptAnswerList"/> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:complexType name="promptAnswerList"> <xs:sequence> <xs:element name="PromptAnswer" type="api:promptAnswer" minOccurs="0" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> <xs:complexType name="promptAnswer" abstract="true"> <xs:sequence> <xs:element name="Prompt" type="api:ref"/> <xs:element name="Children" type="api:promptAnswerList" minOccurs="0"/> </xs:sequence> </xs:complexType> <xs:complexType name="textPromptAnswer"> <xs:complexContent> <xs:extension base="promptAnswer"> <xs:sequence> <xs:element name="Value" type="api:nonEmptyString" minOccurs="0"/> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> And here are relavent parts of the script: my $promptAnswerList = new My::API::Type::promptAnswerList; my @promptAnswers; my $promptAnswerList2 = new My::API::Type::promptAnswerList; my @textPromptAnswerChildren; my $textPromptAnswer = new My::API::Type::textPromptAnswer; my $textPromptAnswerRef = new My::API::Type::ref; $textPromptAnswerRef->ref('2'); $textPromptAnswer->Prompt($textPromptAnswerRef); my $choicePromptAnswer = new My::API::Type::choicePromptAnswer; my $choicePromptAnswerPromptRef = new My::API::Type::ref; my $choicePromptAnswerChoiceRef = new My::API::Type::ref; $choicePromptAnswerPromptRef->ref('1'); $choicePromptAnswerChoiceRef->ref('2'); $choicePromptAnswer->Prompt($choicePromptAnswerPromptRef); $choicePromptAnswer->Choice($choicePromptAnswerChoiceRef); push(@textPromptAnswerChildren, $choicePromptAnswer); $promptAnswerList2->PromptAnswer(@textPromptAnswerChildren); $textPromptAnswer->Children($promptAnswerList2); $textPromptAnswer->Value('totally'); push(@promptAnswers, $pulseTextPromptAnswer); push(@promptAnswers, $textPromptAnswer); I haven't seen this addressed anywhere in the documentation for the XML::Pastor modules, so if anyone can point me at a good reference for its use it would be greatly appreciated. Also, I'm only using XML::Pastor because I don't know of any other modules that can do this, so if any of you know of something either easier to use, or more well maintained, please let me know about that too!

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  • MVVM (ICommand) in Silverlight

    - by Andrey Khataev
    Hello! Please, don't judge strictly if this question was discussed previously or indirectly answered in huge nearby prism and mvvm blogs. In WPF implementation of RelayCommand or DelegateCommand classes there is a such eventhandler /// <summary> /// Occurs whenever the state of the application changes such that the result of a call to <see cref="CanExecute"/> may return a different value. /// </summary> public event EventHandler CanExecuteChanged { add { CommandManager.RequerySuggested += value; } remove { CommandManager.RequerySuggested -= value; } } but in SL subset of namespaces there are no CommandManager class. And this is where I'm stuck. I haven't yet found an workaround for this in MVVM adoptation for SL (PRISM is so complex for me yet). Different simple HelloWorldMVVM apps don't deal with at all. Thanks in advance and sorry for my English -)

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  • Embedding a querystring parameter in a hidden input with JSP results ing 500 error.

    - by dacracot
    I need a hidden input to contain the value passed by the querystring via a JSP's URL. The URL looks like... http://nowhere.com/myapp/blah.jsp?key=12345 The JSP looks like... <html> <body> <input id="key" type="hidden" value="<%=request.getParameter('key')%>" /> </body> </html> This causes a 500 error... SEVERE: Servlet.service() for servlet jsp threw exception org.apache.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 3 in the jsp file: /myapp/blah.jsp Invalid character constant 1: <html> 2: <body> 3: <input id="key" type="hidden" value="<%=request.getParameter('key')%>" /> 4: </body> 5: </html>

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  • Scala - Enumeration vs. Case-Classes

    - by tzofia
    I've created akka actor called LogActor. The LogActors's receive method handling messages from other actors and logging them to the specified log level. I can distinguish between the different levels in 2 ways. The first one: import LogLevel._ object LogLevel extends Enumeration { type LogLevel = Value val Error, Warning, Info, Debug = Value } case class LogMessage(level : LogLevel, msg : String) The second: (EDIT) abstract class LogMessage(msg : String) case class LogMessageError(msg : String) extends LogMessage(msg) case class LogMessageWarning(msg : String) extends LogMessage(msg) case class LogMessageInfo(msg : String) extends LogMessage(msg) case class LogMessageDebug(msg : String) extends LogMessage(msg) Which way is more efficient? does it take less time to match case class or to match enum value? (I read this question but there isn't any answer referring to the runtime issue)

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  • Gimp: Color to alpha

    - by MTilsted
    I have an image where I want all the pixels with a specific color converted to transparent pixels. The operation should not change the color/alpha value of any pixel which don't match the color exactly. How do I do that? At first I thought I could use Colors-"Color to Alpha" but that don't work because it changes the color of all pixels(It adds an alpha value to all pixels). Using Gimp 2.6.11 on Linux

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  • Handle ConstraintException and get ColumnName that cause the error

    - by Mysterious
    Hello, I have a Table Machines that made of: ID = Identity , Primary , AutoIncrement,NOT NULL SN = Unique , String , NOT NULL Name =String now I am using a form to insert data into this table, and I am using BindingSource and ErrorProvider, I am handling Null and Empty string in the DataSet layer (partial class in the dataset.xsd), now when I try to end editing this.machinesBindingSource.EndEdit(); I got this error message: ex.Message = "Column 'SN' is constrained to be unique. Value '123' is already present." I know I entered a duplicated value but the question is HOW can I determine which the columnName that cause the error and re-write the error message entirely in different language I want to get the columnName and the wrong value thanks in advance

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