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  • Is this a valid jquery getJSON call?

    - by Pandiya Chendur
    I am using jquery getJSON with asp.net mvc controller... I cant able to get it work.... public JsonResult GetMaterials(int currentPage,int pageSize) { var materials = consRepository.FindAllMaterials().AsQueryable(); var results = new PagedList<MaterialsObj>(materials, currentPage-1, pageSize); return Json(results); } and i am calling this with, $.getJSON('Materials/GetMaterials', "{'currentPage':1,'pageSize':5}", function(data) { }); This call doesn't seem to work.... when inspected through firebug i found this, The parameters dictionary contains a null entry for parameter 'currentPage' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.JsonResult GetMaterials(Int32, Int32)' in 'CrMVC.Controllers.MaterialsController'. To make a parameter optional its type should be either a reference type or a Nullable type.<br> Parameter name: parameters

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  • Hierarchy as grid

    - by seesharp
    I have hierarchy: public class Parameter { public string Name { get; set; } public Value Value { get; set; } } public abstract class Value { } public class StringValue : Value { public string Str { get; set; } } public class ComplexValue : Value { public ComplexValue() { Parameters = new List<Parameter>(); } public List<Parameter> Parameters { get; set; } } /// Contains ComplexValue public class ComplexParameter : Parameter { } And XAML with templates <Window.Resources> <DataTemplate DataType="{x:Type pc:Parameter}"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Label Grid.Column="0" Content="{Binding Name}"/> <ContentPresenter Grid.Column="1" Content="{Binding Value}"/> </Grid> </DataTemplate> <DataTemplate DataType="{x:Type pc:ComplexParameter}"> <StackPanel> <Label Content="{Binding Name}"/> <ContentControl Margin="18,0,0,0" Content="{Binding Value}"/> </StackPanel> </DataTemplate> <DataTemplate DataType="{x:Type pc:ComplexValue}"> <ItemsControl ItemsSource="{Binding Parameters}"/> </DataTemplate> <DataTemplate DataType="{x:Type pc:StringValue}"> <TextBox Text="{Binding Str}"/> </DataTemplate> </Window.Resources> This look like: Param1 -Control---- Param2 -Control---- Complex1 Sub Param1 -Control- Sub Param2 -Control- Or image here: freeimagehosting.net/uploads/9d438f52e7.png Question How to do indent only in left column (parameter names). Something like this: Param1 -Control---- Param2 -Control---- Complex1 Sub Param1 -Control---- Sub Param2 -Control---- Or image here: freeimagehosting.net/uploads/4ab3045b75.png

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  • Rails messing up with HTTP POST Params

    - by Julien Genestoux
    Our app provides an API that people can use to submit URLs like this: curl -X POST http://app.local/resource -d'url=http://news.google.com/newshl=en&q=obama&um=1&ie=UTF-8&output=rss' Unfortunately, it seems that Rails messes up with this param. Any idea on how to fix this? See the log below : Processing ApplicationController#index (for 127.0.0.1 at 2010-06-08 19:03:09) [POST] Parameters: {"um"=>"1", "url"=>"http://news.google.com/newshl=en", "output"=>"rss", "q"=>"obama", "ie"=>"UTF-8"} I would expect the following : Parameters: {"url"=>"hhttp://news.google.com/newshl=en&q=obama&um=1&ie=UTF-8&output=rss"}

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  • windows C system call with spaces in command

    - by myforwik
    I cannot make system calls with spaces in the names and parameters. For example: system("c:\program files\something\example.exe c:\my files\example.txt"); I have tried escaping in every way I know how, and NOTHING works. I have tried: system("\"c:\program files\something\example.exe\" \"c:\my files\example.txt\""); and system("c:\program^ files\something\example.exe c:\my^ files\example.txt"); Neither work. I still get 'c:\program' is not a recongnised internal or external command This is really driving me mad... I need to call and pass parameters that have spaces in them. I cannot use the short notation for reasons I won't go into. I have tried with ' quotes instead of " quotes, still doesn't work. I have tried putting quotes around the whole thing and quotes around the spaces and that doesn't work. Does anyone know how to do it properly?

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  • Java Annotations - Is there any helper library to read/process annotations?

    - by mjlee
    I start to use Java annotations heavily. One example is taking method with annotations and converting them into 'telnet'-based command-line command. I do this by parsing annotations and hook into jopt option parser. However, I do a lot of these manually. For example, Method parameter annotation processing.. Method method = ... //; Class[] parameters = method.getParamterTypes(); Annotation[][] annotations = method.getparamterAnnotations(); for( int i = 0; i < parameters.length; i++ ) { // iterate through the annotation , see if each param has specific annotation ,etc. } It is very redundant and tedious. Is there any opensource project that help processing Annotations?

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  • How can you tell the source of the data when using the Stream.BeginRead Method?

    - by xarzu
    When using the Stream.BeginRead Method, and you are reading from a stream into a memory, how is it determined where you are reading the data from? See: http://msdn.microsoft.com/en-us/library/system.io.stream.beginread.aspx In the list of parameters, I do not see one that tells where the data is being read from: Parameters buffer Type: System.Byte[] The buffer to read the data into. offset Type: System.Int32 The byte offset in buffer at which to begin writing data read from the stream. count Type: System.Int32 The maximum number of bytes to read. callback Type: System.AsyncCallback An optional asynchronous callback, to be called when the read is complete. state Type: System.Object A user-provided object that distinguishes this particular asynchronous read request from other requests.

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  • I need someone for explain this ASP function to me.

    - by Ronnie Chester Lynwood
    Hello! I've got an ASP document that 5 years old. Actually I'm working with PHP but I must use ASP for a Windows Application. So I need someone to explain this function to me. Thanks anyway. //DNS SETTINGS ARE INCLUDED ALREADY. function Check_Is_Web_Locked() dim cmdDB , Ret OpenDatabase Set cmdDB = Server.CreateObject("ADODB.Command") With cmdDB .ActiveConnection = DBCon .CommandText = "TICT_CHECK_WEB_STATUS" .CommandType = adCmdStoredProc .Parameters.Append .CreateParameter("RETURN_VALUE", adInteger, adParamReturnValue, 0) .Execute,,adExecuteNoRecords Ret = Trim(.Parameters("RETURN_VALUE")) End With Set cmdDB = Nothing CloseDatabase Check_Is_Web_Locked = Ret end function What does this functions do? Is "TICT_CHECK_WEB_STATUS" a StoredProcedure? If it's what are the coulumns that function looking for?

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  • Dynamic Multiple Choice (Like a Wizard) - How would you design it? (e.g. Schema, AI model, etc.)

    - by henry74
    This question can probably be broken up into multiple questions, but here goes... In essence, I'd like to allow users to type in what they would like to do and provide a wizard-like interface to ask for information which is missing to complete a requested query. For example, let's say a user types: "What is the weather like in Springfield?" We recognize the user is interested in weather, but it could be Springfield, Il or Springfield in another state. A follow-up question would be: What Springfield did you want weather for? 1 - Springfield, Il 2 - Springfield, Wi You can probably think of a million examples where a request is missing key data or its ambiguous. Make the assumption the gist of what the user wants can be understood, but there are missing pieces of data required to complete the request. Perhaps you can take it as far back as asking what the user wants to do and "leading" them to a query. This is not AI in the sense of taking any input and truly understanding it. I'm not referring to having some way to hold a conversation with a user. It's about inferring what a user wants, checking to see if there is an applicable service to be provided, identifying the inputs needed and overlaying that on top of what's missing from the request, then asking the user for the remaining information. That's it! :-) How would you want to store the information about services? How would you go about determining what was missing from the input data? My thoughts: Use regex expressions to identify clear pieces of information. These will be matched to the parameters of a service. Figure out which parameters do not have matching data and look up the associated question for those parameters. Ask those questions and capture answers. Re-run the service passing in the newly captured data. These would be more free-form questions. For multiple choice, identify the ambiguity and search for potential matches ranked in order of likelihood (add in user history/preferences to help decide). Provide the top 3 as choices. Thoughts appreciated. Cheers, Henry

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  • Intermittent "Specified cast is invalid" with StructureMap injected data context

    - by FreshCode
    I am intermittently getting an System.InvalidCastException: Specified cast is not valid. error in my repository layer when performing an abstracted SELECT query mapped with LINQ. The error can't be caused by a mismatched database schema since it works intermittently and it's on my local dev machine. Could it be because StructureMap is caching the data context between page requests? If so, how do I tell StructureMap v2.6.1 to inject a new data context argument into my repository for each request? Update: I found this question which correlates my hunch that something was being re-used. Looks like I need to call Dispose on my injected data context. Not sure how I'm going to do this to all my repositories without copypasting a lot of code. Edit: These errors are popping up all over the place whenever I refresh my local machine too quickly. Doesn't look like it's happening on my remote deployment box, but I can't be sure. I changed all my repositories' StructureMap life cycles to HttpContextScoped() and the error persists. Code: public ActionResult Index() { // error happens here, which queries my page repository var page = _branchService.GetPage("welcome"); if (page != null) ViewData["Welcome"] = page.Body; ... } Repository: GetPage boils down to a filtered query mapping in my page repository. public IQueryable<Page> GetPages() { var pages = from p in _db.Pages let categories = GetPageCategories(p.PageId) let revisions = GetRevisions(p.PageId) select new Page { ID = p.PageId, UserID = p.UserId, Slug = p.Slug, Title = p.Title, Description = p.Description, Body = p.Text, Date = p.Date, IsPublished = p.IsPublished, Categories = new LazyList<Category>(categories), Revisions = new LazyList<PageRevision>(revisions) }; return pages; } where _db is an injected data context as an argument, stored in a private variable which I reuse for SELECT queries. Error: Specified cast is not valid. Exception Details: System.InvalidCastException: Specified cast is not valid. Stack Trace: [InvalidCastException: Specified cast is not valid.] System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) +4539 System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) +207 System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +500 System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +50 System.Linq.Queryable.FirstOrDefault(IQueryable`1 source) +383 Manager.Controllers.SiteController.Index() in C:\Projects\Manager\Manager\Controllers\SiteController.cs:68 lambda_method(Closure , ControllerBase , Object[] ) +79 System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +258 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39 System.Web.Mvc.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() +125 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +640 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +312 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +709 System.Web.Mvc.Controller.ExecuteCore() +162 System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +58 System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +20 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +453 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +371

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  • Why does this code block say "not all code paths return a value"?

    - by Kishan
    I wrote following code...but i am getting Error like: Error 1 'LoginDLL.Class1.Login(string, string, string)': not all code paths return a value Please help me... Thanks in advance... My code is as given below... public int Login(string connectionString,string username,string password) { SqlConnection con=new SqlConnection(connectionString); con.Open(); SqlCommand validUser = new SqlCommand("SELECT count(*) from USER where username=@username", con); validUser.Parameters.AddWithValue("@username", username); int value=Convert.ToInt32(validUser.ExecuteScalar().ToString()); if (value == 1) { //check for password SqlCommand validPassword = new SqlCommand("SELECT password from USER where username=@username", con); validPassword.Parameters.AddWithValue("@username", username); string pass = validPassword.ExecuteScalar().ToString(); if (pass == password) { //valid login return 1; } else { return 0; } } else if (value == 0) { return 2; } }

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  • Java program has errors, 80 lines of code

    - by user2961687
    I have a problem with a program. It contains a lot of errors in Eclipse. Sorry for my english and thank you in advance. Here is the task: I. Declare a class that contains private fields Jam: String taste, double weight Create constructors containing variables as parameters: (String taste, double weight), (double weight), (String taste). Parameters constructors should initialize class fields. In case the constructor does not provide the necessary parameter, it must be assumed that the field taste must have the value "No Name" and weight - 100.0. Introduce the use of all constructors creating objects that represent three kinds of jams. Note: it must be assumed that the only constructor with two parameters can be assigned to fields of the class. Declare a class Jar that contains the field Jam jam, a dedicated constructor initiating all declared fields and methods: open close isItOpen Next, create an object of class Jar and fill it with the selected type of jam, operations repeat for all the kinds of jams. This is my code this far: public class App { public static void main(String[] args) { Jam strawberry = new Jam("strawberry", 20.45); Jam raspberry = new Jam(40.50); Jam peach = new Jam("peach"); Jar jar_1 = new Jar(); Jar jar_2 = new Jar(); Jar jar_3 = new Jar(); jar_1.open(); jar_1.fillIn(strawberry); jar_2.fillIn(peach); jar_3.fillIn(raspberry); } } class Jam { String taste; double weight; public Jam(String taste, double weight) { this.taste = taste; this.weight = weight; } public Jam(double weight) { this.taste = "No name"; this.weight = weight; } public Jam(String taste) { this.taste = taste; this.weight = 100.0; } } class Jar { public Jam Jam = new Jam(); private String state_jar; public Jar() { Jam.weight = 0; Jam.taste = ""; state_jar = "closed"; } public static String open() { state_jar = open; return state_jar; } public static String close() { state_jar = "closed"; return state_jar; } public static boolean isItOpen() { return state_jar; } public void fillIn(Jam jam) { if (isItOpen == false) open(); this.Jam.weight = jam.weight; this.Jam.taste = jam.taste; this.Jam.close(); } }

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  • c# create an arbitrary length generic parameter string e.g. ?,?,?

    - by Sky Sanders
    I know I am forgetting to remember how to do this and it is late. I want to, in an elegant manner, build a placeholder list for a munged sql command. Have a command with an arbitrary number of parameters, need to build ?,?,? Did I mention that it was a wet brain fart? this is what came out: Regex.Replace(new string('?', _command.Parameters.Count), @"\?\?", @"\?,\?"); You are welcome to make me feel like more of an idiot if you just remember me what I am forgetting. ;-)

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  • Ways to improve Java Generics and dont say get rid of wildcards and reification.

    - by mP
    Sometimes i like to write up template classes and use type parameters to make the abstract methods more type safe. Template<X> { abstract void doStuff( X ); // NOT public } While type safety is great etc, the problem remains that even though X is not visible to outside code, one must still include the type to avoid warnings. My solution in this case would be to make it possible to define a scope for type parameters (now they are always public). Would other original features besides the obvious would you like.

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  • Puzzle: Overload a C++ function according to the return value

    - by Motti
    We all know that you can overload a function according to the parameters: int mul(int i, int j) { return i*j; } std::string mul(char c, int n) { return std::string(n, c); } Can you overload a function according to the return value? Define a function that returns different things according to how the return value is used: int n = mul(6, 3); // n = 18 std::string s = mul(6, 3); // s = "666" // Note that both invocations take the exact same parameters (same types) You can assume the first parameter is between 0-9, no need to verify the input or have any error handling.

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  • Get Explorer preview for .eml files in Windows 7

    - by Pekka
    Is there an application or plug-in that allows viewing .eml E-Mail dumps (that may contain HTML and attachments) in Windows 7's preview pane? I'm aware of the possibility of adding the file type in the registry but that will give only a plain-text view of the files, not a parsed view. HTML viewing is a must for what I need, attachments are optional. Is there some top-notch E-Mail client that introduces this functionality? Is there a generic way of doing this?

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  • Database design - alternatives for Entity Attribute Value (AEV)

    - by Bob
    Hi, see http://stackoverflow.com/questions/695752/product-table-many-kinds-of-product-each-product-has-many-parameters for similar topic. My question: i want to design a database, that will be used for a production facility of different types of products where each product has its own (number of) parameters. because i want the serial numbers to be in one tabel for overview purposes i have a problem with these different paraeters . One solution could be AEV, but it has its downsides, certainly because we have +- 5 products with every product +- 20.000 serial numbers (records). it looks a bit overkill to me... I just don't know how one could design a database so that you have an attribute in a mastertable that says: 'hey, you could find details of this record in THAT detail-table". 'in a way that you qould easely query the results) currenty i am using Visual Basic & Acces 2007. but i'm going to Visual Basic & MySQL. thanks for your help. Bob

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  • Strategies for generating Zend Cache Keys

    - by emeraldjava
    ATM i'm manually generating a cache key based on the method name and parameters, then follow to the normal cache pattern. This is all done in the Controller and i'm calling a model class that 'extends Zend_Db_Table_Abstract'. public function indexAction() { $cache = Zend_Registry::get('cache'); $individualleaguekey = sprintf("getIndividualLeague_%d_%s",$leagueid,$division->code); if(!$leaguetable = $cache->load($individualleaguekey)) { $table = new Model_DbTable_Raceresult(); $leaguetable = $table->getIndividualLeague($leagueid,$division,$races); $cache->save($leaguetable, $individualleaguekey); } $this->view->leaguetable = $leaguetable; .... I want to avoid the duplication of parameters to the cache creation method and also to the model method, so i'm thinking of moving the caching logic away from my controller class and into model class packaged in './model/DbTable', but this seems incorrect since the DB model should only handle SQL operations. Any suggestions on how i can implement a clean patterned solution?

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  • Invalid Token when using XPath

    - by Andy5
    Hi I am making a modification to a web application using XPath, and when executed I get an error message - Invalid token! This is basic what I am doing public xmlNode GetSelection (SelectParams params, xmldocument docment) { xpathstring = string.format("Name =\'{0}' Displaytag = \'{1}' Manadatory=\'{2}', params.Name, params.Displaytag, params.Manadatory); return document.selectsinglenode(xpathstring); } As you can see, I am making a string and setting values on the nodes I am trying to find against my xml document, and thus returning xml data that matches my parameters. What is happening is that I am getting an xpathexeception error in Visual Studio and it says invalid token. I do know that in the xml document that the parameters I am looking in the tags have double quotes, for example, Name="ABC". So, I thought the problem could be solved using an "\". Can anyone help? Update from comments In the Xml Document, the tag has attributes where they are set as Name="ABC" Displaytag="ATag" Manadatory="true".

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  • About data size filled in the buffer

    - by Bohan Lu
    I need low-latency audio in my project, and I know Android 2.3 supports OpenSL ES. I have read documents and sample code and I decide to use Android simple buffer queue to do the play and record. I now try to write a simple application to do the test. However, I have some questions about recording. If I set the recorder stop when it is recording, how do I know the exact number of bytes filled in the last buffer if it is not filled up ? In 1.1 version, the callback function has some parameters about buffer and its filled data, but there is no such parameters in version 1.0.1. Is there any way to get this information ? Any suggestion would be greatly appreciated !

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  • Unzip only updated files

    - by R S
    Is there a way to unzip a zip file into a directory, but only do so for updates files? I have a huge directory of files there, and only about 20% are different. Preferably using command line, but it's optional. Thanks.

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  • Where is the Camera Codec feature available in Windows 8?

    - by Rowland Shaw
    If you try to install the Camera Codec pack for Windows 7 on Windows 8, you get an error: This version of the Microsoft Camera Codec Pack is not compatible with Windows 8 or Windows Server 2012. You can get the codec pack through Windows Update on Windows 8. However, I cannot see anywhere on Windows update that would suggest I can download this, even as an optional update? Is it just the case that it is not yet live, as everything filters through the RTM process, or is it hidden away as something else?

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  • sql server swap data between rows problem

    - by AmRoSH
    I was asking b4 about swaping query to swap data between rows in same table and i got that qurey ALTER PROCEDURE [dbo].[VehicleReservationsSwap] -- Add the parameters for the stored procedure here (@FirstVehicleID int, @secondVehicleID int, @WhereClause nvarchar(2000)) AS BEGIN Create Table #Temp ( VehicleID int ,VehicleType nvarchar(100) ,JoinId int ) DECLARE @SQL varchar(8000) SET @SQL ='Insert into #Temp (VehicleID,VehicleType,JoinId) SELECT VehicleID,VehicleType,CASE WHEN VehicleID = ' + Cast(@FirstVehicleID as varchar(10)) + ' then ' + Cast(@secondVehicleID as varchar(10)) + ' ELSE ' + Cast(@FirstVehicleID as varchar(10)) + ' END AS JoinId FROM Reservations WHERE VehicleID in ( ' + Cast(@FirstVehicleID as varchar(10)) + ' , ' + Cast(@secondVehicleID as varchar(10)) + ' )' + @WhereClause EXEC(@SQL) --swap values UPDATE y SET y.VehicleID = #Temp.VehicleID ,y.VehicleType = #Temp.VehicleType FROM Reservations y INNER JOIN #Temp ON y.VehicleID = #Temp.JoinId WHERE y.VehicleID in (@FirstVehicleID,@secondVehicleID) Drop Table #Temp END this query take 2 parameters and swaping all rows returned for each parameter. the problem is the query swaps just if each parameter (forign key) has values I need to make swaping in case if one of them has no vlue. I hope if some one can help me in that . Thanks,

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  • Problem calling stored procedure with a fixed length binary parameter using Entity Framework

    - by Dave
    I have a problem calling stored procedures with a fixed length binary parameter using Entity Framework. The stored procedure ends up being called with 8000 bytes of data no matter what size byte array I use to call the function import. To give some example, this is the code I am using. byte[] cookie = new byte[32]; byte[] data = new byte[2]; entities.Insert("param1", "param2", cookie, data); The parameters are nvarchar(50), nvarchar(50), binary(32), varbinary(2000) When I run the code through SQL profiler, I get this result. exec [dbo].[Insert] @param1=N'param1',@param2=N'param2',@cookie=0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 [SNIP because of 16000 zeros] ,@data=0x0000 All parameters went through ok other than the binary(32) cookie. The varbinary(2000) seemed to work fine and the correct length was maintained. Is there a way to prevent the extra data being sent to SQL server? This seems like a big waste of network resource.

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