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  • LINQ to SQL selecting fields

    - by user3686904
    I am trying to populate more columns in the query below, could someone assist me? QUERY: var query = from r in SQLresults.AsEnumerable() group r by r.Field<string>("COLUMN_ONE") into groupedTable select new { c1 = groupedTable.Key, c2 = groupedTable.Sum(s => s.Field<decimal>("COLUMN_TWO")), }; How could I get a column named COLUMN_THREE in this query ? Thanks in advance

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  • LINQ query to navigate an object hierachy

    - by TesterTurnedDeveloper
    Let's say I have an object graph of Countries / States / Cities, like below: public class City { public string Name { get; set; } } public class State { public List<City> Cities { get; set; } } public class Country { public List<State> States { get; set; } } Is there a simple way to query a List<Country> to get all the cities?

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  • Getting maximum value from table using LINQ

    - by Tena
    I have a table in my database. I want to get the maximum value of a column named NumOfView. I used this code: var advert=(from ad in storedb.Ads where ad.AdScope == "1" select ad.NumOfView).Max(); It works but when there are two or more same maximum values it doesn't work and this message appears: Sequence contains more than one element What should I do now? Your answers will be very helpfull. Thanks

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  • Linq To Entities

    - by JkenshinN
    This has probably been answer already but I am trying to return the primary key after inserting a record to the database. Does anyone know how this is accomplish after the record has been created?

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  • LINQ Query and DateTimes....

    - by AlwaysBeCoding
    Im trying to get the Sum() from an Entityset with the next query. (from MyObject p in SelectedObject.MyObjectEntitySet where p.AColumn.HasValue && (p.ADate >= dateTimeValue && p.ADate <= dateTimeValue2) select p.AColumn.Value).Sum(); with no luck retrieving correct sum. Any Ideas?

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  • [Linq & Dictionary (.NET)] A problem with compare item value

    - by Tony
    Hi, I have defined my class: public class Host { public string Name; } then a strobgly-typed dictionary: Dictionary<string, Host> HostsTable; then I try to compare a value: if (HostsTable.Values.Where(s => s.Name == "myhostname") != null) { doSomething } and the problem is, nothing is found, even I'm sure the item is on the list. What I'm doing wrong ?

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  • Please help translate this in linq to ef

    - by user3487644
    StringBuilder sb = new StringBuilder(); sb.AppendLine("SELECT"); sb.AppendLine(String.Format(" (SELECT TOP 1 CAST(ProspectID AS VARCHAR(5)) FROM Lead_Import_Fail Where ProspectID < {0} AND ProspectFullName = '{1}')", Convert.ToInt64(lead.LeadID), lead.Name)); sb.AppendLine(String.Format(", (SELECT TOP 1 CAST(ProspectID AS VARCHAR(5)) FROM Lead_Import_Fail Where ProspectID < {0} AND ProspectNRICPassport = '{1}')", Convert.ToInt64(lead.LeadID), lead.NRIC)); Thanks in advance.

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  • LINQ Query with 3 levels

    - by BahaiResearch.com
    I have a business object structured like this: Country has States, State has Cities So Country[2].States[7].Cities[5].Name would be New York Ok, I need to get a list of all the Country objects which have at least 1 City.IsNice == true How do I get that?

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  • xml schema building

    - by amanrahahla
    in xml can any concept inhert the attribute of the main concept as an example: can textbook take the same attribute of book and how? another question if the attribute is a compound noun (i mean two or more words) such as family line it gave me an error when i save it as xml how can i deal with this situation?

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  • C# WPF fill datagrid or listview from XML file

    - by Dave
    I have a well formed XML file I would like to fill a datagrid with. I would prefer using the AutoGenerate feature of WFPToolKit datagrid, but could hard code the columns in. The trouble I am having is getting the xml file contents into a datagrid. I had it partially working in a listview, but think a datagrid would be more suited for my needs. Can anyone provide a quick example of how to accomplish this? Thanks!

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  • Using returned XML from an authorised HTTP request in vb.NET

    - by Nathan
    Hi, How can I use the returned XML from the reader in a xmltextreader? ' Create the web request request = DirectCast(WebRequest.Create("https://mobilevikings.com/api/1.0/rest/mobilevikings/sim_balance.xml"), HttpWebRequest) ' Add authentication to request request.Credentials = New NetworkCredential("username", "password") ' Get response response = DirectCast(request.GetResponse(), HttpWebResponse) ' Get the response stream into a reader reader = New StreamReader(response.GetResponseStream()) Thanks in advance, Nathan.

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  • Java properties - .properties files vs xml?

    - by pg-robban
    I'm a newbie when it comes to properties, and I read that XML is the preferred way to store these. I noticed however, that writing a regular .properties file in the style of foo=bar fu=baz also works. This would mean a lot less typing (and maybe easier to read and more efficient as well). So what are the benefits of using an XML file?

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  • avoid the use of 'mixed=true' in xml schema

    - by Ralph Kretzler
    I am using xjc to convert a schema to java classes. When I am using mixed=true in the schema I am losing the access method for child nodes instead there is a single general content access method. Is there a way to rewrite the schema without using mixed=true. There is no way that I can change the xml so I have to customize the schema. Schema XML camera or camera Thanks, Ralph

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  • asp.net xml editor control

    - by Peter Goras
    All, I am looking for an asp.net xml editor control. Not a WYSIWYG editor like freetextbox or a javascript syntax highlighter but something that would make editing xml in the browser a bit easier than just as text in a textarea. maybe some non-editable areas, collapsable nodes, xsd validation etc. any ideas?

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  • Creating XML file header.

    - by Waheed
    Hi, I want to create an XML file with folllowing header dynamically. <?xml version="1.0" encoding="utf-8"?> <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> <url> How should i create this urlset node.

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  • how to pretty print xml from Java

    - by Steve McLeod
    I have a Java String that contains XML, with no line feeds and indentations. I would like to turn in into a String with nicely formatted XML. How do I do this? String unformattedXml = "<tag><nested>hello</nested></tag>"; String formattedXml = new [UnknownClass]().format(unformattedXml); Note: My input is a String. My output is a String.

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  • does red5 read tomcat-users.xml

    - by baba
    Hi, I have been busy creating an app for Red5. Imagine what was my surprise when I tried to configure basic/digest authentication and I couldn't. What struck me as strange is that I have a running tomcat instance that works and authenticates correctly with the following xmls: web.xml (part of) <security-constraint> <web-resource-collection> <web-resource-name>A Protected Page</web-resource-name> <url-pattern>/stats.jsp</url-pattern> </web-resource-collection> <auth-constraint> <description/> <role-name>tomcat</role-name> </auth-constraint> </security-constraint> <login-config> <auth-method>DIGEST</auth-method> <realm-name>BLAAAAAAAAAAAAAAAAA</realm-name> </login-config> <security-role> <description/> <role-name>tomcat</role-name> </security-role> and a tomcat-users.xml in /conf that looks kinda like this: <?xml version="1.0" encoding="UTF-8"?> <tomcat-users> <role rolename="tomcat"/> <user username="ide" password="bogus" roles="tomcat"/> </tomcat-users> The annoying thing is that configuration authenticates correctly when on tomcat's servlet container, but on the red5's modified one, it just keeps asking for authentication. Am I becoming mad or it should work like a charm? Red5 is version 0_9_1 The stats.jsp is accessible in both servlet containers, the only difference is that when you input the correct password and username in tomcat, you are logged in, and in red5 you are not, it just keeps asking you for the password. Any pointers? Am I missing something? Here is a stack trace of the error I receive AT the moment I try the login: Caused by: java.io.IOException: Unable to locate a login configuration at com.sun.security.auth.login.ConfigFile.init(ConfigFile.java:250) [na:1.6.0_22] at com.sun.security.auth.login.ConfigFile.<init>(ConfigFile.java:91) [na:1.6.0_22] ... 27 common frames omitted [ERROR] [http-127.0.0.1-5080-1] org.apache.catalina.realm.JAASRealm - Cannot find message associated with key jaasRealm.unexpectedError java.lang.SecurityException: Unable to locate a login configuration at com.sun.security.auth.login.ConfigFile.<init>(ConfigFile.java:93) [na:1.6.0_22] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [na:1.6.0_22] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) [na:1.6.0_22] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [na:1.6.0_22] at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [na:1.6.0_22] at java.lang.Class.newInstance0(Class.java:355) [na:1.6.0_22] at java.lang.Class.newInstance(Class.java:308) [na:1.6.0_22] at javax.security.auth.login.Configuration$3.run(Configuration.java:247) [na:1.6.0_22] at java.security.AccessController.doPrivileged(Native Method) [na:1.6.0_22] at javax.security.auth.login.Configuration.getConfiguration(Configuration.java:242) [na:1.6.0_22] at javax.security.auth.login.LoginContext$1.run(LoginContext.java:237) [na:1.6.0_22] at java.security.AccessController.doPrivileged(Native Method) [na:1.6.0_22] at javax.security.auth.login.LoginContext.init(LoginContext.java:234) [na:1.6.0_22] at javax.security.auth.login.LoginContext.<init>(LoginContext.java:403) [na:1.6.0_22] at org.apache.catalina.realm.JAASRealm.authenticate(JAASRealm.java:394) [catalina-6.0.24.jar:na] at org.apache.catalina.realm.JAASRealm.authenticate(JAASRealm.java:357) [catalina-6.0.24.jar:na] at org.apache.catalina.authenticator.DigestAuthenticator.findPrincipal(DigestAuthenticator.java:283) [catalina-6.0.24.jar:na] at org.apache.catalina.authenticator.DigestAuthenticator.authenticate(DigestAuthenticator.java:176) [catalina-6.0.24.jar:na] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:523) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [catalina-6.0.24.jar:na] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [catalina-6.0.24.jar:na] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [catalina-6.0.24.jar:na] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) [catalina-6.0.24.jar:na] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) [tomcat-coyote-6.0.24.jar:na] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) [tomcat-coyote-6.0.24.jar:na] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) [tomcat-coyote-6.0.24.jar:na] at java.lang.Thread.run(Thread.java:662) [na:1.6.0_22] Caused by: java.io.IOException: Unable to locate a login configuration at com.sun.security.auth.login.ConfigFile.init(ConfigFile.java:250) [na:1.6.0_22] at com.sun.security.auth.login.ConfigFile.<init>(ConfigFile.java:91) [na:1.6.0_22] ... 27 common frames omitted In addition, here is the configuration of red5-web.properties webapp.contextPath=/project Even futher information: Seems to me like it is using the right realm: MemoryRealm [INFO] [main] org.red5.server.tomcat.TomcatLoader - Setting connector: org.apache.catalina.connector.Connector [INFO] [main] org.red5.server.tomcat.TomcatLoader - Address to bind: /127.0.0.1:5080 [INFO] [main] org.red5.server.tomcat.TomcatLoader - Setting realm: org.apache.catalina.realm.MemoryRealm [INFO] [main] org.red5.server.tomcat.TomcatLoader - Loading tomcat context [INFO] [main] org.red5.server.tomcat.TomcatLoader - Server root: C:/Program Files/Red5 [INFO] [main] org.red5.server.tomcat.TomcatLoader - Config root: C:/Program Files/Red5/conf [INFO] [main] org.red5.server.tomcat.TomcatLoader - Application root: C:/Program Files/Red5/webapps [INFO] [main] org.red5.server.tomcat.TomcatLoader - Starting Tomcat servlet engine [INFO] [main] org.apache.catalina.startup.Embedded - Starting tomcat server [INFO] [main] org.apache.catalina.core.StandardEngine - Starting Servlet Engine: Apache Tomcat/6.0.26 However, immediately after bootstraping Tomcat, I am presented with the following error: Exception in thread "Launcher:/administration" org.springframework.beans.factory.BeanDefinitionStoreException: Could not resolve bean definition resource pattern [/WEB-INF/red5-*.xml]; nested exception is java.io.FileNotFoundException: ServletContext resource [/WEB-INF/] cannot be resolved to URL because it does not exist at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:190) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:93) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130) at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:458) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:388) at org.red5.server.tomcat.TomcatLoader$1.run(TomcatLoader.java:594) Caused by: java.io.FileNotFoundException: ServletContext resource [/WEB-INF/] cannot be resolved to URL because it does not exist at org.springframework.web.context.support.ServletContextResource.getURL(ServletContextResource.java:132) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.isJarResource(PathMatchingResourcePatternResolver.java:414) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:343) at org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:282) at org.springframework.context.support.AbstractApplicationContext.getResources(AbstractApplicationContext.java:1156) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:177) ... 7 more This error is kinda strange, because after this it seems that /WEB-INF/ is found by the rest of the program by the following output: [INFO] [Launcher:/SOSample] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer - Loading properties file from ServletContext resource [/WEB-INF/red5-web.properties] [INFO] [Launcher:/installer] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer - Loading properties file from ServletContext resource [/WEB-INF/red5-web.properties] [INFO] [Launcher:/] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer - Loading properties file from ServletContext resource [/WEB-INF/red5-web.properties] [INFO] [Launcher:/LiveMedia] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer - Loading properties file from ServletContext resource [/WEB-INF/red5-web.properties] What really annoys me is that, as you can see in the output, when I try to login, I get a JAASRealm-related exception, but in the debug output when Tomcat is loading, it is clear to me that it expects a MemoryRealm. I was wondering where and how in red5.xml should I specify bean properties such that I force red5 to use MemoryRealm that is under /conf/tomcat-users.xml, because it certainly doesn't do so now. It seems like the biggest question I have posted so far, but I tried to explain it as fully as possible as to avoid confusion.

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  • C# XML comments - build a list

    - by Russell
    I am trying to build a list for my XML comments on my C# method. I am using the following document, however the list implementation in this does not work for me. I am using visual studio 2008 and .net 3.5. http://msdn.microsoft.com/en-us/magazine/cc302121.aspx How do I build a list using XML comments in C#?

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  • Best way to manipulate XML in .NET

    - by Juan Manuel Formoso
    I need to manipulate an existing XML document, and create a new one from it, removing a few nodes and attributes, and perhaps adding new ones, what would be the best group of classes to accomplish this? There are a lot of .NET classes for XML manipulation, and I'm not sure what would be the optimal way to do it.

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  • XML flat file vs. relational database backend

    - by donpal
    Most projects now need some form of a database. When someone says database, I usually think relational databases, but I still hear about flat file XML databases. What parameters do you take into consideration when deciding between a "real" database and a flat-file XML database. When should one be used over the other, and under what circumstances should I never consider using a flat file (or vice versa a relational) database?

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