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  • Cannot implicity convert type void to System.Threading.Tasks.Task<bool>

    - by sagesky36
    I have a WCF Service that contains the following method. All the methods in the service are asynchrounous and compile just fine. public async Task<Boolean> ValidateRegistrationAsync(String strUserName) { try { using (YeagerTechEntities DbContext = new YeagerTechEntities()) { DbContext.Configuration.ProxyCreationEnabled = false; DbContext.Database.Connection.Open(); var reg = await DbContext.aspnet_Users.FirstOrDefaultAsync(f => f.UserName == strUserName); if (reg != null) return true; else return false; } } catch (Exception) { throw; } } My client application was set to access the WCF service with the check box for the "Allow generation of asynchronous operations" and it generated the proxy just fine. I am receiving the above subject error when trying to call this WCF service method from my client with the following code. Mind you, I know what the error message means, but this is my first time trying to call an asynchronous task in a WCF service from a client. Task<Boolean> blnMbrShip = db.ValidateRegistrationAsync(FormsAuthentication.Decrypt(cn.Value).Name); What do I need to do to properly call the method so the design time compile error disappears? Thanks so much in advance...

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  • Generic function to handle DataType Conversion

    - by Tommo1977
    I have the following function in C#, that I want to pass a MySQL DataReader value/object. If the value of the object passed is a DBNull I need to handle it and return a Null value of that data type e.g null int. Otherwise I want to convert the returned value like Convert.ToInt32(value) or similar. public static T ConvertFromDB<T>(object value) { return value == DBNull.Value ? default(T) : (T)value; } Can anyone offer any help on this ?

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  • Assigning a selector via SEL type?

    - by fuzzygoat
    I just spotted the following in an online tutorial. It showed 001 as a method for assigning a selector, however I could not get this to work. Am I right in thinking that 001 is not right and 002 is the correct way, or am I doing something wrong with 001? // 001 SEL mySel = [self something]; // 002 SEL mySel = @selector(something); . -(void)something { NSLog(@"YAY"); } Gary

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  • Flex 4 how to layout spark controls in an html table type way

    - by Amy
    I have a group of controls and I want to organize them in a table like fashion. I want 1 row and 6 columns. Col 1,3,4,5,6 should all auto size to the contents and col 2 should take up the remaining available space. When the size of the group changes, only col2 width should change. I also want to be able to set the alignment of each cell. How can I do this in flex 4? I found a reference to mx:constraintColumns but this seems to be used with the canvas and in flex 4 adobe suggests not using canvases. Is there something similar in flex 4? I'm looking for something along the lines of Grid/Grid.ColumnDefinitions in silverlight.

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  • Save File From Local Data in Javascript

    - by Travis
    Heres the scenario: User comes to my website and opens a webpage with some javascript functionality. User edits the data through javascript User clicks on a save button to save the data, thing is, it seems like they shouldn't need to download this data because its already in javascript on the local machine. Is it possible to save data from javascript (executing from a foreign webpage) without downloading a file from the server? Any help would be much appreciated!

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  • Movable Type: MTEntries sort_by="title" doesn't really work

    - by kohei
    Hello Im trying to sort <MTEntries> by title. I know you can use <MTEntries sort_by="title" sort_order="ascend"> but this modifier some how prioritizes capitalized letters first to the sort. Im not sure if this is a glitch in the system but this modifier should sort by purely the alphabets(caps or no caps) used in the title. Example: I would like to sort these titles alphabetically: APRICOT Aligator ABBEY Apple If <MTEntries sort_by="title" sort_order="ascend"> is used: ABBEY APRICOT Aligator Apple But it really should be (and I want) ABBEY Aligator Apple APRICOT Would someone know how to achive this?

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  • Smaller Chunks of Data

    - by Googler
    I am using a web service to fetch a large amount of data. While sending the request, i receive an error as: Error: ** Please request data in smaller chunks.** Is this a problem with the web services i am fetching the information or a normal rule for fetching the data through internet. May i know the cause of this problem and also how to send the data in smaller chunks to avoid this error.

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  • Automatically restarting Perfmon Data Collector Sets

    - by Scott Herbert
    I have a number of User Defined Data Collector Sets running on a Windows 2008R2 server, collecting perfmon stats from various servers. Whenever there is a network interruption, or a server rebooted (at worst, when the server which is running all these DCSs is rebooted), I have to manually restart some or all of the Data Collector Sets. Is there a way to configure them to automatically restart, or otherwise be more resilient?

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  • how to Invoke User-Defined Functions That Return a Table Data Type

    - by nectar
    here my code- create function dbo.emptable() returns Table as return (select id, name, salary from employee) go select dbo.emptable() error: Msg 4121, Level 16, State 1, Line 1 Cannot find either column "dbo" or the user-defined function or aggregate "dbo.emptable", or the name is ambiguous. while when I run sp_helptext emptable it shows- create function dbo.emptable() returns Table as return (select id, name, salary from employee) it means function exists in database then why it is giving such error?

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  • Can this way of storing typed objects be improved?

    - by Pindatjuh
    This is an "can it be improved"-question. Topic: Storing typed objects in memory. Background information: I'm building a compiler for the x86-32 Windows platform for my language. My goal includes typed objects. Idea: Every primitive is a semi-class (it can be used as if it was a normal class, but it's stored more compact). Every class is represented by primitives and some meta-data (containing class-properties, inheritance stuff, etc.). The meta-data is complex: it doesn't use fields but instead context-switches. For primitives, the meta-data is very small, compared to a "real" class, which is alot bigger. This enables another idea that "primitives are objects", in my language, which I found nessecairy. Example: If I have an array of 32 booleans, then the pure content of this array is exactly 4 byte (32 bits of booleans). The meta-data will contain flags that the type is an array of booleans, which contains 32 entries. The meta-data is very compacted, on bit-level: using a sort of "packing" mechanism, which is read by a FSM at runtime, when doing inspection of the type (like when passing the object to methods for checking, etc.) For instance (read from left to right, top to bottom, remember vertical position when going to the right, and check nearest column header for meaning of switch): Primitive? Array? Type-Meta 1 Byte? || Size (1 byte) 1 1 [...] 1 [...] done 0 2 Bytes? || Size (2 bytes) 1 [...] done || Size (4 bytes) 0 [...] done Integer? 1 Byte? 2 Bytes? 0 1 0 1 done 1 done 0 done Boolean? Byte? 0 1 0 done 1 done More-Primitives 0 .... Class-Stuff (Huge) 0 ... (After reaching done the data is inserted. || = byte alignment. [...] is variable sized. ... is not described here, for simplicity. And let's call them cost-based-data-structures.) For an array of 32 booleans containing all true values, the memory for this type would be (read top-down): 1 Primitive 1 Array 1 ArrayType: Primitive 0 Not-Array 0 Not-Integer 1 Boolean 0 Not-Byte (thus bit) 1 Integer Size: 1 Byte 00100000 Array size 01010101 01010101 01010101 01010101 Data (user defined) Thus, 8 bytes represent 32 booleans in an array: 11100101 00100000 01010101 01010101 01010101 01010101 How can I improve this? (Both performance- and memory-consumption wise)

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  • Newbie C# Question about float/int/text type formatting

    - by user563501
    Hey everybody, I'm a total C# newb with a light (first year CS) background in Python. I wrote a console program in Python for doing marathon pace running calculations and I'm trying to figure out the syntax for this in C# using Visual Studio 2010. Here's a chunk of what I've got so far: string total_seconds = ((float.Parse(textBox_Hours.Text) * 60 * 60) + (float.Parse(textBox_Minutes.Text) * 60) + float.Parse(textBox_Seconds.Text)).ToString(); float secs_per_unit = ((float)(total_seconds) / (float)(textBox_Distance.Text)); float mins_per_unit = (secs_per_unit / 60); string pace_mins = (int)mins_per_unit.ToString(); string pace_secs = (float.Parse(mins_per_unit) - int.Parse(mins_per_unit) * 60).ToString(); textBox_Final_Mins.Text = pace_mins; textBox_Final_Secs.Text = pace_mins; Imagine you have a running pace of 8 minutes and 30 seconds per mile. secs_per_unit would be 510, mins_per_unit would be 8.5. pace_mins would simply be 8 and pace_secs would be 30. In Python I'd just convert variables from a float to a string to get 8 instead of 8.5, for example; hopefully the rest of the code gives you an idea of what I've been doing. Any input would be appreciated.

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  • European alternatives to Dropbox?

    - by torbengb
    Dropbox is positively brilliant, but the data center is probably in the US somewhere. Since I'm in Europe, there's plenty of lag and a poor upload rate. Are there any similar services using data centers in Europe? I'm looking for a free plan (cirka 2GB), so sites like Amazon S3 aren't good answers.

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  • How to catch this type of exceptions ?

    - by Lukas Šalkauskas
    I'm starting getting tired of this exception. Can't handle it, even so I'm using this: AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Still no success, Can anyone explain me, how I should handle it in a nice way. Or how to detect that it have fired this message and close the application, because I'm starting it automatically everytime it closes.

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  • construct graph from python set type.

    - by Vincent
    The sort question, is the an off the self function to make a graph from a set of python sets? The longer: I have several python set types. They each overlap or some are sub sets of others. I would like to make a graph (as in nodes and edges) with the edges weighted by common intersection of the sets. There are several graphing packages for python. (NetworkX, igraph,...) I am not familiar with the use of any of them. Will any of them make a graph directly from a list of sets ie, MakeGraphfromSets(alistofsets) If not do you know of an example of how to take the list of sets to define the edges. It actually looks like it might be straight forward but an example is always good to have.

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  • Render an url of type ?x=1&y=2 with xslt

    - by Josemalive
    Hello, Im trying to print, using a xslt sheet a url but im having problems with the chars = and &: This is the url that i want to render: <a href="whatever.aspx?x=1&y=2">whatever</a> Im getting that "=" is an unexpected token. How should i have to put the = and the & in a xslt sheet? Thanks in advance. Regards. Jose

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  • PHP retrieve external program data

    - by kaykun
    Hi, what I want to do is have a PHP script run a program and have it retrieve data somehow from it. For instance the program would parse data from a file and return the data for the PHP script to display. So far I know to call exec("Program.exe"); but would I have to make it create a file with the data then have the PHP script call fopen and get it that way? Is there a better way to do it? Thanks

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  • help with selecting nodes with xpath

    - by fayer
    my xml structure looks like this: <entity id="1000070"> <name>apple</name> <type>category</type> <entities> <entity id="7002870"> <name>mac</name> <type>category</type> <entities> <entity id="7002907"> <name>leopard</name> <type>sub-category</type> <entities> <entity id="7024080"> <name>safari</name> <type>subject</type> </entity> <entity id="7024701"> <name>finder</name> <type>subject</type> </entity> </entities> </entity> </entities> </entity> <entity id="7024080"> <name>iphone</name> <type>category</type> <entities> <entity id="7024080"> <name>3g</name> <type>sub-category</type> </entity> <entity id="7024701"> <name>3gs</name> <type>sub-category</type> </entity> </entities> </entity> <entity id="7024080"> <name>ipad</name> <type>category</type> </entity> </entities> </entity> currently i have selected all entities with type node that is not category. $xmlDocument-removeNodes("//entity[not(type='category')]") i wonder how i could select all nodes that dont contain type=category OR type=sub-category. i have tried with: $xmlDocument->removeNodes("//entity[not(type='category')] | //entity[not(type='sub-category')]") but it doesnt work!

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  • C# - Sharing static data between multiple processes

    - by Murtaza Mandvi
    I have a WCF service (instantiated within a Console application on NetTCP), this service has static data (large volume) which gets instantiated on the load. I have multiple instances of this Console application running at once, and all of them are doing the same static data initialization , is there a way that I can have a single data source and share the data among processes so that each process does not have to consume large amount of memory?

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  • Use of type 'id' in cocoa class

    - by gotye
    Hey guys, I want to implement a class which can be used by two classes of my project. One is manipulating 'NewsRecord' objects. One is manipulating 'GalleriesRecord' objects. In another class, I may use one of the two objects so i do something like that : // header class id myNewsRecordOrGalleriesRecord; // class.m // NewsRecord and GalleriesRecord have both the title property NSLog(myNewsRecordOrGalleriesRecord.title); and i get : error : request for member 'title' in something not a structure or union any ideas :D ? Thanks. Gotye How am I supposed to do it ?

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  • Autofac: Reference from a SingleInstance'd type to a HttpRequestScoped

    - by Michael Wagner
    I've got an application where a shared object needs a reference to a per-request object. Shared: Engine | Per Req: IExtensions() | Request If i try to inject the IExtensions directly into the constructor of Engine, even as Lazy(Of IExtension), I get a "No scope matching [Request] is visible from the scope in which the instance was requested." exception when it tries to instantiate each IExtension. How can I create a HttpRequestScoped instance and then inject it into a shared instance? Would it be considered good practice to set it in the Request's factory (and therefore inject Engine into RequestFactory)?

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  • Help with data retrieval MACRO

    - by Andrei Ciobanu
    Hello, given the following structure: struct nmslist_elem_s { nmptr data; struct nmslist_elem_s *next; }; typedef struct nmslist_elem_s nmslist_elem; Where: typedef void* nmptr; Is it possible to write a MACRO that retrieves the data from the element and cast it to the right type: MACRO(type, element) that expands to *((type*)element->data). For example for int, i would need something like this: *((int*)(element->data)) .

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