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  • When to use custom exceptions vs. existing exceptions vs. generic exceptions

    - by Ryan Elkins
    I'm trying to figure out what the correct form of exceptions to throw would be for a library I am writing. One example of what I need to handle is logging a user in to a station. They do this by scanning a badge. Possible things that could go wrong include: Their badge is deactivated They don't have permission to work at this station The badge scanned does not exist in the system They are already logged in to another station elsewhere The database is down Internal DB error (happens sometimes if the badge didn't get set up correctly) An application using this library will have to handle these exceptions one way or another. It's possible they may decide to just say "Error" or they may want to give the user more useful information. What's the best practice in this situation? Create a custom exception for each possibility? Use existing exceptions? Use Exception and pass in the reason (throw new Exception("Badge is deactivated.");)? I'm thinking it's some sort of mix of the first two, using existing exceptions where applicable, and creating new ones where needed (and grouping exceptions where it makes sense).

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  • Error when creating a new entity foo, editing a previously existing foo, then saving. Generic 4004 e

    - by Tarks
    The steps are as simple as that so I imagine there's something else going on here, the problem is I just get back 4004, no exception anywhere etc, making it annoying to debug, I get this from the ie error window Microsoft JScript runtime error: Unhandled Error in Silverlight Application Code: 4004 Category: ManagedRuntimeError Message: System.Windows.Ria.DomainOperationException: Submit operation failed. An error occurred while updating the entries. See the inner exception for details. at System.Windows.Ria.OperationBase.Complete(Exception error) at System.Windows.Ria.SubmitOperation.Complete(Exception error) at System.Windows.Ria.DomainContext.CompleteSubmitChanges(IAsyncResult asyncResult) at System.Windows.Ria.DomainContext.<c_DisplayClassd.b_5(Object ) public void TurnPage(bool forward) { TurnPageForward = forward; // If the pages are already turning then don't try and skip days, just run the animation function so it inreases the speed if (!workBook.IsTransitioning && !IsWaitingForData) { IsWaitingForData = true; workBook.SnapshotPages(); NoteCtx.SubmitChanges().Completed += (s, a) => { workBook.ClearPageContents(); CurrentDate = CurrentDate.AddDays(forward ? 1 : -1); PullNotes(CurrentDate); }; } else { workBook.BeginTurnPages(TurnPageForward); } } public void PullNotes(DateTime? noteTime) { NoteCtx.NoteItems.Clear(); var loadOp = NoteCtx.Load(NoteCtx.GetNoteItemsForDayQuery(CurrentDate)); loadOp.Completed += new EventHandler(NotesReady); }

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  • WCF for a shared data access

    - by Audrius
    Hi all, I have a little experience with WCF and would like to get your opinion/suggestion on how the following problem can be solved: A web service needs to be accessible from multiple clients simultaneously and service needs to return a result from a shared data set. The concrete project I'm working on has to store a list of IP addresses/ranges. This list will be queried by a bunch of web servers for a validation purposes and we speak of a couple of thousand or more queries per minute. My initial draft approach was to use Windows service as a WCF host with service contract implementing class that is decorated with ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple) that has a list object and a custom locking for accessing it. So basically I have a WCF service singleton with a list = shared data - multiple clients. What I do not like about it is that data and communication layers are merged into one and performance wise this doesn't feel "right". What I really really (- want is Windows service running an instance of IP list holding container class object, a second service running WCF service contract implementation and a way the latter querying the former in a nice way with a minimal blocking. Using another WCF channel would not really take me far away from the initial draft implementation or would it? What approach would you take? Project is still in a very early stage so complete design re-do is not out of question. All ideas are appreciated. Thanks! UPDATE: The data set will be changed dynamically. Web service will have a separate method to add IP or IP range and on top of that there will be a scheduled task that will trigger data cleanup every 10-15 minutes according to some rules. UPDATE 2: a separate benchmark project will be kicked up that should use MSSQL as a data backend (instead on in-memory list).

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  • How to debug a web service written in PHP?

    - by nightcoder
    Hello, I've got a nice question here :) I need to debug my web service written in PHP. Its client is written in C#. After a couple of days of searching I realized this is not an easy task. At least it seems nobody knows the right solution. What is the problem in, actually? We have 2 popular PHP debugging libraries : PHP Debugger from NuSphere and XDebug extension. The problem is they both are controlled from URL query string or with the help of cookies. For example, to enable debugging with PHP Debugger you need to add ?DBGSESSID=xxx parameter to your URL or to have DBGSESSID cookie. But when your web service is called from the external client, the client doesn't have a cookie and doesn't add DBGSESSID url parameter. So how can we debug in this situation? PS. I don't want to write to log files, see request and response headers/data or something like this. I want normal step-by-step debugging and breakpoints. Anyone?

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  • How can I return json from my WCF rest service (.NET 4), using Json.Net, without it being a string,

    - by Samuel Meacham
    The DataContractJsonSerializer is unable to handle many scenarios that Json.Net handles just fine when properly configured (specifically, cycles). A service method can either return a specific object type (in this case a DTO), in which case the DataContractJsonSerializer will be used, or I can have the method return a string, and do the serialization myself with Json.Net. The problem is that when I return a json string as opposed to an object, the json that is sent to the client is wrapped in quotes. Using DataContractJsonSerializer, returning a specific object type, the response is: {"Message":"Hello World"} Using Json.Net to return a json string, the response is: "{\"Message\":\"Hello World\"}" I do not want to have to eval() or JSON.parse() the result on the client, which is what I would have to do if the json comes back as a string, wrapped in quotes. I realize that the behavior is correct; it's just not what I want/need. I need the raw json; the behavior when the service method's return type is an object, not a string. So, how can I have my method return an object type, but not use the DataContractJsonSerializer? How can I tell it to use the Json.Net serializer instead? Or, is there someway to directly write to the response stream? So I can just return the raw json myself? Without the wrapping quotes? Here is my contrived example, for reference: [DataContract] public class SimpleMessage { [DataMember] public string Message { get; set; } } [ServiceContract] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)] public class PersonService { // uses DataContractJsonSerializer // returns {"Message":"Hello World"} [WebGet(UriTemplate = "helloObject")] public SimpleMessage SayHelloObject() { return new SimpleMessage("Hello World"); } // uses Json.Net serialization, to return a json string // returns "{\"Message\":\"Hello World\"}" [WebGet(UriTemplate = "helloString")] public string SayHelloString() { SimpleMessage message = new SimpleMessage() { Message = "Hello World" }; string json = JsonConvert.Serialize(message); return json; } // I need a mix of the two. Return an object type, but use the Json.Net serializer. }

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  • How can I disable keep-alive on ASP.NET Web Service client requests?

    - by Matthew Brindley
    I have a few web servers behind an Amazon EC2 load balancer. I'm using TCP balancing on port 80 (rather than HTTP balancing). I have a client polling a Web Service (running on all web servers) for new items every few seconds. However, the client seems to stay connected to one server and polls that same server each time. I've tried using ServicePointManager to disable KeepAlive, but that didn't change anything. The outgoing connection still had its "connection: keep-alive" HTTP header, and the server kept the TCP connection open. I've also tried adding an override of GetWebRequest to the proxy class created by VS, which inherits from SoapHttpClientProtocol, but I still see the keep-alive header. If I kill the client's process and restart, it'll connect to a new server via the load balancer, but it'll continue polling that new server forever. Is there a way to force it to connect to a random server each time? I want the load from the one client to be spread across all of the web servers. The client is written in C# (as is the server) and uses a Web Reference (not a Service Reference), which points to the load balancer.

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  • How do I securely authenticate the calling assembly of a WCF service method?

    - by Tim
    The current situation is as follows: We have an production .net 3.5 WCF service, used by several applications throughout the organization, over wsHttpBinding or netTcpBinding. User authentication is being done on the Transport level, using Windows integrated security. This service has a method Foo(string parameter), which can only be called by members of given AD groups. The string parameter is obligatory. A new client application has come into play (.net 3.5, C# console app), which eliminates the necessity of the string parameter. However, only calls from this particular application should be allowed to omit the string parameter. The identity of the caller of the client application should still be known by the server because the AD group limitation still applies (ruling out impersonation on the client side). I found a way to pass on the "evidence" of the calling (strong-named) assembly in the message headers, but this method is clearly not secure because the "evidence" can easily be spoofed. Also, CAS (code access security) seems like a possible solution, but I can't seem to figure out how to make use of CAS in this particular scenario. Does anyone have a suggestion on how to solve this issue? Edit: I found another thread on this subject; apparently the conclusion there is that it is simply impossible to implement in a secure fashion.

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  • Is there a better way to create a generic convert string to enum method or enum extension?

    - by Kelsey
    I have the following methods in an enum helper class (I have simplified it for the purpose of the question): static class EnumHelper { public enum EnumType1 : int { Unknown = 0, Yes = 1, No = 2 } public enum EnumType2 : int { Unknown = 0, Dog = 1, Cat = 2, Bird = 3 } public enum EnumType3 : int { Unknown = 0, iPhone = 1, Andriod = 2, WindowsPhone7 = 3, Palm = 4 } public static EnumType1 ConvertToEnumType1(string value) { return (string.IsNullOrEmpty(value)) ? EnumType1.Unknown : (EnumType1)(Enum.Parse(typeof(EnumType1), value, true)); } public static EnumType2 ConvertToEnumType2(string value) { return (string.IsNullOrEmpty(value)) ? EnumType2.Unknown : (EnumType2)(Enum.Parse(typeof(EnumType2), value, true)); } public static EnumType3 ConvertToEnumType3(string value) { return (string.IsNullOrEmpty(value)) ? EnumType3.Unknown : (EnumType3)(Enum.Parse(typeof(EnumType3), value, true)); } } So the question here is, can I trim this down to an Enum extension method or maybe some type of single method that can handle any type. I have found some examples to do so with basic enums but the difference in my example is all the enums have the Unknown item that I need returned if the string is null or empty (if no match is found I want it to fail). Looking for something like the following maybe: EnumType1 value = EnumType1.Convert("Yes"); // or EnumType1 value = EnumHelper.Convert(EnumType1, "Yes"); One function to do it all... how to handle the Unknown element is the part that I am hung up on.

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  • How do you Access an Authenticated Google App Engine Service with Ruby?

    - by viatropos
    I am trying to do this same thing here but with Ruby: Access Authenticated GAE Client with Python. Any ideas how to retrieve authenticated content from GAE with Ruby? I am using the Ruby GData Gem to access everything in Google Docs and such and it's making life very easy, but now I'd like to access things on GAE that require admin access, programmatically, and it doesn't support that. Here's what I'm getting (using DocList, not sure what to use yet): c = GData::Client::DocList.new c.clientlogin(username, password, nil, nil, nil, "HOSTED") c => #<GData::Client::DocList:0x201bad8 @clientlogin_service="writely", @version="2", @auth_handler=#<GData::Auth::ClientLogin:0x200803c @account_type="HOSTED", @token="long-hash", @auth_url="https://www.google.com/accounts/ClientLogin", @service="writely">, @source="AnonymousApp", @headers={"Authorization"=>"GoogleLogin auth=long-hash", "User-Agent"=>"GoogleDataRubyUtil-AnonymousApp", "GData-Version"=>"2", "Content-Type"=>"application/atom+xml"}, @authsub_scope="http://docs.google.com/feeds/", @http_service=GData::HTTP::DefaultService> url = "http://my-cdn.appspot.com/files/restricted-file.html" c.get(url) => #<GData::HTTP::Response:0x20004b8 @status_code=302, @body="", @headers={"connection"=>"close", "date"=>"Sun, 11 Apr 2010 00:30:20 GMT", "content-type"=>"text/html", "server"=>"Google Frontend", "content-length"=>"0", "location"=>"https://www.google.com/accounts/ServiceLogin service=ah&continue=http://my-cdn.appspot.com/_ah/login%3Fcontinue%3D http://my-cdn.appspot.com/files/restricted-file.html& ltmpl=gm&ahname=My+CDN&sig=a-signature"}> Any tips? That other SO question pointed to doing something with the redirect... Not sure how to handle that. Just looking for a point in the right direction from the ruby experts. Thanks.

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  • Why won't jqGrid won't populate initially in Chrome

    - by Maxm007
    Hi, I've got a web page with a jqGrid that uses am xmlreader to populate itself with data that is spat out by a RoR service. The page loads fine in firefox and safari. In Chrome however I get a blank grid. Only when I change the sort order by clicking on the columns does it populate. <html> <head> <title>LocalFx</title> <link href="/stylesheets/main.css?1271423251" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/redmond/jquery-ui-1.8.custom.css?1271404544" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/ui.jqgrid.css?1265561560" media="screen" rel="stylesheet" type="text/css" /> <script src="/javascripts/jquery-1.3.2.min.js?1259426008" type="text/javascript"></script> <script src="/javascripts/i18n/grid.locale-en.js?1266140090" type="text/javascript"></script> <script src="/javascripts/jquery.jqGrid.min.js?1271437772" type="text/javascript"></script> <script type="text/javascript"> jQuery().ready(function() { jQuery("#list").jqGrid({ xmlReader: { root:"contracts", row:"contract", repeatitems:false, id:"id" }, jsonReader: { repeatitems:false, root:"contracts" }, datatype: 'xml', url:'http://localhost:3000/contracts/index/all.xml', mtype: 'GET', colNames:['User','B/S', 'Currency', 'Amount', 'Rate'], colModel :[ {name:'user', index:'username', width:100 , xmlmap:'user>username'} , {name:'side', index:'side', width:100 , xmlmap:'side'} , {name:'currency', index:'ccy', width:100 , xmlmap:'currency>ccy'} , {name:'amount', index:'amount', width:100 , xmlmap:'amount'}, {name:'rate', index:'rate', width:100 , xmlmap:'exchange-rate>rate'} ], pager: jQuery('#pager'), caption: 'Contracts', sortname: 'side', sortorder: "asc", viewrecords:true, rowNum:10, rowList:[10,20,30] }); $("#list").trigger("reloadGrid") }); </script> </head> <body> <table id="list" align="center" class="scroll"></table> <div id="pager" class="scroll" style="text-align:center;"></div> </body> </html> This is the xml: <contracts type="array"> <contract> <amount type="float">1000.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">488525179</currency-id> <id type="integer">18277852</id> <side>BUY</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">18277852</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">419011264</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>EUR</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">488525179</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> <contract> <amount type="float">500.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">890731696</currency-id> <id type="integer">716237132</id> <side>SELL</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">716237132</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">861902380</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>GBP</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">890731696</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> </contracts>

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  • C# .NET MVC Call an action from another controller

    - by Brian
    I have two different objects: contracts, and task orders. My requirements specify that in order to view the Details for either object, the Url should be "http://.../Contract/Details" or "http://.../TaskOrder/Details" depending on which type. They are both very similar and the details pages are almost identical, so I made a class that can either be a contract or a task order, and has a variable "objectTypeID" that says which type it is. I wrote the action "Details" in the task order controller, but now I want to call that from the contract controller instead of recopying the code. So is there any way to have the url still say ".../Contract/Details" but call the action in the TaskOrder controller instead? I tried using TaskOrderController TOController = new TaskOrderController(); TOController.Details(id); This would have worked except that I can't use the HttpContext.Session anymore, which I used several times in the action.

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  • WCF : Endpoints clarifications

    - by nettguy
    Except netNamedPipeBinding, we can have multiple endpoints of same transport.Is it correct? example <service name = "TestService"> <endpoint address = "http://localhost:8000/TestService/" binding = "wsHttpBinding" contract = "ITestContract" /> <endpoint address = "net.tcp://localhost:8001/TestService/" binding = "netTcpBinding" contract = "ITestContract" /> <endpoint address = "net.tcp://localhost:8002/TestService/" binding = "netTcpBinding" contract = "IMyOtherTestContract"/> </service>

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  • Can protobuf-net serialize this combination of interface and generic collection?

    - by tsupe
    I am trying to serialize a ItemTransaction and protobuf-net (r282) is having a problem. ItemTransaction : IEnumerable<KeyValuePair<Type, IItemCollection>></code> and ItemCollection is like this: FooCollection : ItemCollection<Foo> ItemCollection<T> : BindingList<T>, IItemCollection IItemCollection : IList<Item> where T is a derived type of Item. ItemCollection also has a property of type IItemCollection. I am serializing like this: IItemCollection itemCol = someService.Blah(...); ... SerializeWithLengthPrefix<IItemCollection>(stream, itemCol, PrefixStyle.Base128); My eventual goal is to serialize ItemTransaction, but am snagged with IItemCollection. Item and it's derived types can be [de]serialized with no issues, see [1], but deserializing an IItemCollection fails (serializing works). ItemCollection has a ItemExpression property and when deserializing protobuf can't create an abstract class. This makes sense to me, but I'm not sure how to get through it. ItemExpression<T> : ItemExpression, IItemExpression ItemExpression : Expression ItemExpression is abstract as is Expression How do I get this to work properly? Also, I am concerned that ItemTransaction will fail since the IItemCollections are going to be differing and unknown at compile time (an ItemTransaction will have FooCollection, BarCollection, FlimCollection, FlamCollection, etc). What am I missing (Marc) ? [1] http://stackoverflow.com/questions/2276104/protobuf-net-deserializing-across-assembly-boundaries

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  • nhibernate/fluenthibernate throws StackOverflowException

    - by Gianluca Colucci
    Hi there! In my project I am using NHibernate/FluentNHibernate, and I am working with two entities, contracts and services. This is my contract type: [Serializable] public partial class TTLCContract { public virtual long? Id { get; set; } // other properties here public virtual Iesi.Collections.Generic.ISet<TTLCService> Services { get; set; } // implementation of Equals // and GetHashCode here } and this is my service type: [Serializable] public partial class TTLCService { public virtual long? Id { get; set; } // other properties here public virtual Activity.Models.TTLCContract Contract { get; set; } // implementation of Equals // and GetHashCode here } Ok, so as you can see, I want my contract object to have many services, and each Service needs to have a reference to the parent Contract. I am using FluentNhibernate. So my mappings file are the following: public TTLCContractMapping() { Table("tab_tlc_contracts"); Id(x => x.Id, "tlc_contract_id"); HasMany(x => x.Services) .Inverse() .Cascade.All() .KeyColumn("tlc_contract_id") .AsSet(); } and public TTLCServiceMapping() { Table("tab_tlc_services"); Id(x => x.Id, "tlc_service_id"); References(x => x.Contract) .Not.Nullable() .Column("tlc_contract_id"); } and here comes my problem: if I retrieve the list of all contracts in the db, it works. if I retrieve the list of all services in a given contract, I get a StackOverflowException.... Do you see anything wrong with what I wrote? Have I made any mistake? Please let me know if you need any additional information. Oh yes, I missed to say... looking at the stacktrace I see the system is loading all the services and then it is loading again the contracts related to those services. I don't really have the necessary experience nor ideas anymore to understand what's going on.. so any help would be really really great! Thanks in advance, Cheers, Gianluca.

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  • Why would a WebService return nulls when the actual service returns data?

    - by Jerry
    I have a webservice (out of my control) that I have to talk to. I also have a packet-sniffer on the line, and (SURPRISE!!!) the developers of the webservice aren't lying. They are actually sending back all of the data that I requested. But the web-service code that is auto-generated from the WSDL file is giving me "null" as a value. I used their WSDL file to generate my Web Reference. I checked my data types with the datatypes that the WSDL file has declared. And I used the code as listed below to perform the calls: DT_MaterialMaster_LookupRequest req = new DT_MaterialMaster_LookupRequest(); req.MaterialNumber = "101*"; req.DocumentNo = ""; req.Description = "Pipe*"; req.Plant = "0000"; MI_MaterialMaster_Lookup_OBService srv = new MI_MaterialMaster_Lookup_OBService(); DT_MaterialMaster_Response resp = srv.MI_MaterialMaster_Lookup_OB(new DT_MaterialMaster_LookupRequest[] { req }); // Note that the response here is ALWAYS null!! Console.WriteLine(resp.Status); The resp object is an actual object. It was generated properly. However, the Status and MaterialData fields are always null. When I call the web service, I've placed a packet-sniffer on the line, and I can see that I've sent the following (linebreaks and indentions for my own sanity): <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <MT_MaterialMaster_Lookup xmlns="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch"> <Request xmlns=""> <MaterialNumber>101*</MaterialNumber> <Description>Pipe*</Description> <DocumentNo /> <Plant>0000</Plant> </Request> </MT_MaterialMaster_Lookup> </soap:Body> </soap:Envelope> The response that they send back SEEMS to be a valid response (linebreaks and indentions for my own sanity): <SOAP:Envelope xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/'> <SOAP:Header /> <SOAP:Body> <n0:MT_MaterialMaster_Response xmlns:n0='http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch' xmlns:prx='urn:SomeCompany.com:proxy:BRD:/1SAI/TAS4FE14A2DE960D61219AE:701:2009/02/10'> <Response> <Status>No Rows Found</Status> <MaterialData /> </Response> </n0:MT_MaterialMaster_Response> </SOAP:Body> </SOAP:Envelope> The status shows that it actually received data... but the resp.Status and resp.MaterialData fields are always null. What have I done wrong? UPDATE: The WSDL file is defined as: <?xml version="1.0" encoding="utf-8"?> <wsdl:definitions xmlns:p1="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" name="MI_MaterialMaster_Lookup_AutoCAD_OB" targetNamespace="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> <wsdl:types> <xsd:schema xmlns="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" targetNamespace="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="MT_MaterialMaster_Response" type="p1:DT_MaterialMaster_Response" /> <xsd:element name="MT_MaterialMaster_Lookup" type="p1:DT_MaterialMaster_Lookup" /> <xsd:complexType name="DT_MaterialMaster_Response"> <xsd:sequence> <xsd:element name="Status" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b040af11df99e300145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element maxOccurs="unbounded" name="MaterialData"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa040a511df843700145eccb24e</xsd:appinfo> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element name="MaterialNumber" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa140a511df848500145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Description" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa240a511df95bf00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="DocumentNo" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa340a511dfb23700145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="UOM" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">3b5f14c040a611df9fbe00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Hierarchy" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa440a511dfc65b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Plant" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b140af11dfb78e00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Procurement" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b240af11dfb87b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType> <xsd:complexType name="DT_MaterialMaster_Lookup"> <xsd:sequence> <xsd:element maxOccurs="unbounded" name="Request"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa040a511df843700145eccb24e</xsd:appinfo> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element minOccurs="0" name="MaterialNumber" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa140a511df848500145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Description" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa240a511df95bf00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="DocumentNo" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa340a511dfb23700145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Plant" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa440a511dfc65b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:schema> </wsdl:types> <wsdl:message name="MT_MaterialMaster_Lookup"> <wsdl:part name="MT_MaterialMaster_Lookup" element="p1:MT_MaterialMaster_Lookup" /> </wsdl:message> <wsdl:message name="MT_MaterialMaster_Response"> <wsdl:part name="MT_MaterialMaster_Response" element="p1:MT_MaterialMaster_Response" /> </wsdl:message> <wsdl:portType name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <wsdl:operation name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <wsdl:input message="p1:MT_MaterialMaster_Lookup" /> <wsdl:output message="p1:MT_MaterialMaster_Response" /> </wsdl:operation> </wsdl:portType> <wsdl:binding name="MI_MaterialMaster_Lookup_AutoCAD_OBBinding" type="p1:MI_MaterialMaster_Lookup_AutoCAD_OB"> <binding transport="http://schemas.xmlsoap.org/soap/http" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> <wsdl:operation name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <operation soapAction="http://SomeCompany.com/xi/WebService/soap1.1" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> <wsdl:input> <body use="literal" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:input> <wsdl:output> <body use="literal" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="MI_MaterialMaster_Lookup_AutoCAD_OBService"> <wsdl:port name="MI_MaterialMaster_Lookup_AutoCAD_OBPort" binding="p1:MI_MaterialMaster_Lookup_AutoCAD_OBBinding"> <address location="http://bxdwas.MyCompany.com/XISOAPAdapter/MessageServlet?channel=:AutoCAD:SOAP_SND_Material_Lookup" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:port> </wsdl:service> </wsdl:definitions>

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  • Why is this SocketException not caught by a generic catch routine?

    - by Tarnschaf
    Our company provides a network component (DLL) for a GUI application. It uses a Timer that checks for disconnections. If it wants to reconnect, it calls: internal void timClock_TimerCallback(object state) { lock (someLock) { // ... try { DoConnect(); } catch (Exception e) { // Log e.Message omitted // Raise event with e as parameter ErrorEvent(this, new ErrorEventArgs(e)); DoDisconnect(); } // ... } } So the problem is, inside of the DoConnect() routine a SocketException is thrown (and not caught). I would assume, that the catch (Exception e) should catch ALL exceptions but somehow the SocketException was not caught and shows up to the GUI application. protected void DoConnect() { // client = new TcpClient(); client.NoDelay = true; // In the following call the SocketException is thrown client.Connect(endPoint.Address.ToString(), endPoint.Port); // ... (login stuff) } The doc confirmed that SocketException extends Exception. The stacktrace that showed up is: TcpClient.Connect() -> DoConnect() -> timClock_TimerCallback So the exception is not thrown outside the try/catch block. Any ideas why it doesn't work?

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  • How do you call a generic method on a thread?

    - by cw
    How would I call a method with the below header on a thread? public void ReadObjectAsync<T>(string filename) { // Can't use T in a delegate, moved it to a parameter. ThreadStart ts = delegate() { ReadObjectAcync(filename, typeof(T)); }; Thread th = new Thread(ts); th.IsBackground = true; th.Start(); } private void ReadObjectAcync(string filename, Type t) { // HOW? } public T ReadObject<T>(string filename) { // Deserializes a file to a type. }

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  • Generic Method to find the tuples used for computation in Postgres?

    - by Rahul
    If I have a table col1 | name | pay ------+------------------+------ 1 | Steve Jobs | 1006 2 | Mike Markkula | 1007 3 | Mike Scott | 1978 4 | John Sculley | 1983 5 | Michael Spindler | 1653 The user executes a sum query which sums the pay of people getting paid more than $1500. Is there a way to also implicitly know which tuples have been used which satisfy the condition for sum ? I know you can separately write another query to just return the primary key ids which satisfy the condition. But, Is there any other way to do that in the same query ? probably rewrite the query in some way ? or... any suggestion ?

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  • database schema eligible for delta synchronization

    - by WilliamLou
    it's a question for discussion only. Right now, I need to re-design a mysql database table. Basically, this table contains all the contract records I synchronized from another database. The contract record can be modified, deleted or users can add new contract records via GUI interface. At this stage, the table structure is exactly the same as the Contract info (column: serial number, expiry date etc.). In that case, I can only synchronize the whole table (delete all old records, replace with new ones). If I want to delta(only synchronize with modified, new, deleted records) synchronize the table, how should I change the database schema? here is the method I come up with, but I need your suggestions because I think it's a common scenario in database applications. 1)introduce a sequence number concept/column: for each sequence, mark the new added records, modified records, deleted records with this sequence number. By recording the last synchronized sequence number, only pass those records with higher sequence number; 2) because deleted contracts can be added back, and the original table has primary key constraints, should I create another table for those deleted records? or add a flag column to indicate if this contract has been deleted? I hope I explain my question clearly. Anyway, if you know any articles or your own suggestions about this, please let me know. Thanks!

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  • Is there a generic class to write structured Text Files?

    - by Burnsys
    I have several projects that need to write structured Textfiles, some with fixed size fields, other delimited by characters. Is there a .net class that could be used for that? I know there is a "Microsoft.VisualBasic.FileIO.TextFieldParser" that is useful for reading textfiles, i am actually searching for a ""Microsoft.VisualBasic.FileIO.TextFieldWriter" Related: http://stackoverflow.com/questions/34182/reading-text-files-using-net

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  • Are there any generic shipping calculators out there for DJango?

    - by Jon Cage
    I'm in the process of settings up a website (I'm using DJango) to begin selling some toys I build and need a way of calculating shipping costs for my customers. Are there any (preferably free) shipping calculators which accept a customers address and return the cost for different delivery companies / delivery options? It would be nice if the API could indicate cost vs delivery time. We'll be shipping world-wide if that makes a difference?

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  • Is it bad programming style to have a single, maybe common, generic exception?

    - by m0s
    Hi, so in my program I have parts where I use try catch blocks like this try { DirectoryInfo dirInfo = new DirectoryInfo(someString); //I don't know if that directory exists //I don't know if that string is valid path string... it could be anything //Some operations here } catch(Exception iDontCareWhyItFailed) { //Didn't work? great... we will say: somethings wrong, try again/next one } Of course I probably could do checks to see if the string is valid path (regex), then I would check if directory exists, then I could catch various exceptions to see why my routine failed and give more info... But in my program it's not really necessary. Now I just really need to know if this is acceptable, and what would a pro say/think about that. Thanks a lot for attention.

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