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  • Proper way to structure a Sync Framework DAL

    - by Refracted Paladin
    I am creating a WPF app that needs to allow users to work in a temporary disconnected state and I plan to use a Local Database Cache. My question's are about my data access layer. Do you typically create the whole DAL to point at the Cache or both and create a switching mechanism? Is Entity's a good way to go for my DAL against the Cache? I am used to L2S but my understanding is that I can't use that against SQLCE, correct? Thanks! PS: Any good resources out there for using Sync, Linq, and WPF ALL TOGETHER? Tutorials, videos, etc?

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  • SELECT with a Replace()

    - by andyjohnson
    I have a table of names and addresses, which includes a postcode column. I want to strip the spaces from the postcodes and select any that match a particular pattern. I'm trying this (simplified a bit) in T-SQL on SQL Server 2005: SELECT Replace(Postcode, ' ', '') AS P FROM Contacts WHERE P LIKE 'NW101%' But I get the following error; Msg 207, Level 16, State 1, Line 3 Invalid column name 'P'. If I remove the WHERE clause I get a list of postcodes without spaces, which is what I want to search. How should I approach this? What am I doing wrong?

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  • Updating div after full page refresh following AJAX request

    - by TonE
    Hi, I have an AJAX controller action which returns JSON. The returned JSON is handled via jQuery and contains a message displayed in an update div. The JSON also contains a flag which indicates a change in state. If this is true the entire page needs to be reloaded from a different url. This is currently performed in the jQuery using window.location.replace(url). In the situation where a full page refresh occurs, I still want to display the message from the JSON in the update div, but after the page has fully reloaded. How can I ensure the div is updated with the message after the window.location.replace call and the page has been completely reloaded? Thanks. (I realise AJAX is not intended for full page refreshes but I can't think of a simple way of avoiding it in this scenario. Normal behaviour here is updating the div with a status message.)

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  • REST client website login

    - by Jordan
    I have written a REST service that uses WSSE as an authentication method but i want to be able to use this rest service through a browser by creating a website around the service. I want the user to be able to log in on the website then when they view, for example the "view users" page an ajax request is made to test.com/users and back comes the list. The part i'm trying to get my head around is the logging in/out on the website and keeping the user logged in across pages. Since in a true REST implementation there's no state held on the server, i can't use $_SESSION and now i don't know where to start! What is the best way to go about this? Do i still need to store session information on the server then possibly use cURL to make the request? Thanks Jay

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  • How to open form action in Jquery Dialog

    - by user342391
    I have a form: <form style="display: inline;" action="/player.php" method="post"> <input type="hidden" name="recname" value="'.$row['name'].'"> <input type="hidden" name="recordingdesc" value="'.$row['description'].'"> <input type="hidden" name="reclink" value="$_SESSION['customerid'].'-'.$row['timestamp'].'.wav"> <button type="submit" class="tooltip table-button ui-state-default ui-corner-all" title=" rec"><span class="ui-icon ui-icon-volume-on"></span></button> </form> and i want player.php to open in a modal dialog and be able to display the post information how can this be done.

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  • Easy way to replicate web page across machines?

    - by Mike_G
    I am trying to replicate a browser page to another browser on another machine. I basically want to reproduce a page exactly how it appears to a customer for viewing by the website owner. I have done this before using some impersonation trickery, but found that it would throw the session state out of wack when the site owner would switch customers. So I would like to stay away from cookie and authentication manipulation. Anybody done anything like that? Is there a way to easily transfer the DOM to a webservice? The tech/programming at my disposal are C#, javascript, WCF.

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  • XNA how to organize code with game components (managers)

    - by Johannes
    XNA If I have a button class, and I have a buttonManager class that manages what buttons to be drawn to the screen depending on what the current game state is (main menu, in game, etc), how do I organize my code so that when I click on a button, it takes the user to a different screen. (ex. options menu, ingame). To be more specific, if I were to put the check to see if the user clicks on the button within the buttonManager how would I have the game switch and run the actual game (which is in an entire different class)? Main gameclass buttonManager game component (adds buttons) Button class

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  • Git - will the file moves be detected?

    - by Ben Aston
    I performed some modifications on a branch (A). I then decided to create a brand new branch (B) based on the state of my existing working copy and commit and push to that. There were a number of files that had been moved during my earlier refactoring, and hence were now not included in version control having been moved directly in the filesystem. By accident I did not add these files to git before committing and pushing to the new branch (B). If I now add these files and commit and push, will Git be able to detect the file move operations?

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  • Removing Duplicates in an array in C

    - by LuckySlevin
    The question is a little complex. The problem here is to get rid of duplicates and save the unique elements of array into another array with their original sequence. For example : If the input is entered b a c a d t The result should be : b a c d t in the exact state that the input entered. So, for sorting the array then checking couldn't work since I lost the original sequence. I was advised to use array of indices but I don't know how to do. So what is your advise to do that?

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  • Will .NET 4.0 apps work on Win 2008 R2 Server Core?

    - by markus
    When Windows Server 2008 R2 was launched, the "server core" edition started to become useful to me, because it lets me deploy .NET background applications isolated on their own virtual machine instance with only a small fraction of all the disk space overhead of a default Windows Server installation, and very few Windows Updates. It comes with a subset of .NET 3.5 SP1 integrated (as an optional feature). Now that .NET 4.0 is released, the redistributables explicitly state that it's not support on Server Core. Any chance that there will be a separate download available for Server Core (e. g. without WPF) any time soon, has anybody heard about it?

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  • Is my TFS2010 backup/restore hosed?

    - by bwerks
    Hi all, I recently set up a sandbox TFS to test TFS-specific features without interfering with the production TFS. I was happy I did this sooner than I thought--I hadn't been backing up the encryption key from SSRS and upon restoring the reporting databases, they remained inactive, requiring initialization that could only come from applying the encryption key. Said encryption key was lost when I nuked the partition after backing up the TFS databases. The only option I seemed to have is to delete the encrypted data. I'm fine with this, since there wasn't much in there to begin with, however once they're deleted I'm not quite sure how to configure TFS to recognize a new installation of these services while using the restored versions of everything else. Unfortunately, the TFS help file doesn't seem to account for this state though. Is there a way to essentially rebuild the reporting and analysis databases? Or are they gone forever?

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  • Input string was not in correct format.

    - by jawahar-sync
    Hi Experts, I had a Ribbon like custom control. I created an application using this control. These applications work fine until I change the system number format. They crashes if I change the system number format like below: Current Format = English (United State) Decimal symbol = ',' Digit group symbol = '.' When I run applications, they throw an exception "Input string not in Correct format". . Some other applications specify the Exception's message = "Input string '0,2,0,2' was not a correct format", so I think in Wpf ES's xaml files, we may declare some properties i.e Padding, Margin like "0,2,0,2" = that will cause errors with the system number format above. I have note that this error only occurs in Windows Vista, it does not occurs on Windows XP. I do not know why? I have also look at this link, But it not helps for Vista. http://support.microsoft.com/kb/968227/en-us

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  • LINQ to SQl updating primary key field?

    - by Curtis White
    I have a linq to sql table/class that uses a GUID as both a primary key and as foreign key. This problem came up when factoring some code that previously worked. The exception generated is "Operation is not valid due to the current state of the object." The process I use is as such: aspnet_User user() = new aspnet_User(); aspnet_user.childTable = new childTable(); .. set some properties user.Insert() -> my custom method ... @ my custom method using (mycontext dc = new context() ) { user.childTable.ID = (Guid)myNewlyCreatedGuid; } The exception occurs on the assignment childTable.set_UserId().

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  • MYSQL, Subquery Reference in Union

    - by christian
    Is there any way to reference a subquery in a union? I am trying to do something like the following, and would like to avoid a temporary table, but the subquery will be drawn from a much larger dataset so it makes sense to only do it once.. SELECT * FROM (SELECT * FROM ads WHERE state='FL' AND city='Maitland' AND page='home' ORDER BY RAND()) AS sq WHERE spot = 'full-banner' LIMIT 1 UNION SELECT * FROM sq WHERE spot = 'leaderboard' LIMIT 1 UNION SELECT * FROM sq WHERE spot = 'rectangle1' LIMIT 1 UNION SELECT * FROM sq WHERE spot = 'rectangle2' LIMIT 1 .... etc,, It's a shame that DISTINCT can't be specified for a single column of a result set.

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  • I get "stack level too deep" error when using a named scope

    - by Brian Roisentul
    I'm using ruby on rails 2.3.8 and when I write the syntax shown below I get the "stack level too deep" error message. The model is called Announcement and the line of the error looks like this: Tag.find(category_id).announcements.published Where published is named_scope :published, :conditions => "announcements.state = 'published'" I use this named scope in many other places and it works fine. What am I doing wrong? (the relationship between Tag and Announcement model is ok because if I remove the ".published" method from that line it works just fine).

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  • how to get memory dump after blue screen

    - by user464164
    I'm getting a lovely BSOD on bootup (STOP: 0x0000007E) from a driver I'm writing, and would like to load up the memory dump for analysis. However, it's not getting dumped anywhere. Everything is setup correctly in the Startup and Recovery settings, but I get no dump file, and nothing in the event log stating a dump has taken place. It looks like a dump is not even occurring... I know the exact line of code causing it (a call to IoAttachDevice()), but am not sure why, and would like to view the DbgPrint output to see where exactly it's failing. Could Windows possibly be crashing before the dumping functionality is set up? If so, how do I get access to the state of the machine when the failure occurs? UPDATE: Other possibly useful information: I'm running Windows XP through VirtualBox on a Linux host.

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  • SQL Not Exists in this Query - is it possible

    - by jason barry
    This is my script - it simply looks for the image file associated to a person record. Now the error will display if there is NO .jpg evident when the query runs. Msg 4860, Level 16, State 1, Line 1 Cannot bulk load. The file "C:\Dev\ClientServices\Defence\RAN\Shore\Config\Photos\002054.2009469432270600.001.jpg" does not exist. Is there a way to write this query to 'IF not exists then set id_number = '002054.2009469432270427.001' - so it wil always display this photo for any records without a picture. ALTER procedure [dbo].[as_ngn_sp_REP_PH108_photo] (@PMKEYS nvarchar(50)) AS ---exec [as_ngn_sp_REP_PH108_photo] '8550733' SET NOCOUNT ON DECLARE @PATH AS NVARCHAR(255) DECLARE @ID_NUMBER NVARCHAR(27) DECLARE @SQL AS NVARCHAR(MAX) EXEC DB_GET_DB_SETTING'STAFF PICTURE FILE LOCATION', 0, @PATH OUTPUT IF RIGHT(@PATH,1) <> '\' SET @PATH = @PATH + '\' SELECT @ID_NUMBER = ID_NUMBER FROM aView_person WHERE EXTRA_CODE_1 = @PMKEYS SET @PATH = @PATH + @ID_NUMBER + '.jpg' SET @SQL = 'SELECT ''Picture1'' [Picture], BulkColumn FROM OPENROWSET(Bulk ''' + REPLACE(@PATH,'''','''''') + ''', SINGLE_BLOB) AS RAN' EXEC SP_EXECUTESQL @SQL

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  • Does isolation frameworks (Moq, RhinoMock, etc) lead to test overspecification?

    - by Marius
    In Osherove's great book "The Art of Unit Testing" one of the test anti-patterns is over-specification which is basically the same as testing the internal state of the object instead of some expected output. To my experience, using Isolation frameworks can cause the same unwanted side effects as testing internal behavior because one tends to only implement the behavior necessary to make your stub interact with the object under test. Now if your implementation changes later on (but the contract remains the same), your test will suddenly break because you are expecting some data from the stub which was not implemented. So what do you think is the best approach to counter this? 1) Implement your stubs/mocks fully, this has the negative side-effect of potentially making your test less readable and also specifying more than necessary to make your test pass. 2) Favor manual, fully implemented fakes. 3) Implement your stubs/fakes so that they make your test just pass, and then deal with the brittleness that this might introduce.

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  • Polymorphic classes in templates

    - by soxarered
    Let's say we have a class hierarchy where we have a generic Animal class, which has several classes directly inherit from it (such as Dog, Cat, Horse, etc..). When using templates on this inheritance hierarchy, is it legal to just use SomeTemplateClass<Animal> and then shove in Dogs and Cats and Horses into this templated object? For example, assume we have a templated Stack class, where we want to host all sorts of animals. Can I simply state Stack<Animal> s; Dog d; s.push(d); Cat c; s.push(c);

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  • How can I safely decide if a variable is a string of more than one characters?

    - by Alan
    I am using the following Javascript: if (typeof content !== 'undefined' && content.length > 0) { $state.transitionTo('admin.content', { content: content }) } I thought this was safe to use but it gives me an error saying: TypeError: Cannot read property 'length' of null I am using the following function to decide if something is a number: isNumber: function (num) { // Return false if num is null or an empty string if (num === null || (typeof num === "string" && num.length === 0)) { return false; } var rtn = !isNaN(num) return rtn; }, How can I write a similar function that would very safely determine if something is a string with a length of more than 0?

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  • How to implement dual communication between server and client via http

    - by Alex Sebastiano
    I have a AJAX client which must receive messages from server. Some messages from server not like request-response type. For example, imaging game in which players can enter. Server must send to client info about player entering. But how can server send message to client via http without request from client? Only decision that i can invent: client send request to server (getNewPlayerEnter request) with big timeout, server checks state of player set, if in set new players are, then server send info to client, if not server 'sleeps' on some time, and after 'sleeping' server checks players set again. I think my desicion a little stupid(maybe not little). How implement it right? p.s. sorry for my english

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  • Check if a string substitution rule will ever generate another string.

    - by Mgccl
    Given two strings S and T of same length. Given a set of replacement rules, that find substring A in S and replace it with string B. A and B have the same length. Is there a sequence of rule application, such that it make string S into string T? I believe there is no better way to answer this than try every single rule in every single state. Which would be exponential time. But I don't know if there are better solutions to it.

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  • Why does SQLAlchemy with psycopg2 use_native_unicode have poor performance?

    - by Bob Dover
    I'm having a difficult time figuring out why a simple SELECT query is taking such a long time with sqlalchemy using raw SQL (I'm getting 14600 rows/sec, but when running the same query through psycopg2 without sqlalchemy, I'm getting 38421 rows/sec). After some poking around, I realized that toggling sqlalchemy's use_native_unicode parameter in the create_engine call actually makes a huge difference. This query takes 0.5secs to retrieve 7300 rows: from sqlalchemy import create_engine engine = create_engine("postgresql+psycopg2://localhost...", use_native_unicode=True) r = engine.execute("SELECT * FROM logtable") fetched_results = r.fetchall() This query takes 0.19secs to retrieve the same 7300 rows: engine = create_engine("postgresql+psycopg2://localhost...", use_native_unicode=False) r = engine.execute("SELECT * FROM logtable") fetched_results = r.fetchall() The only difference between the 2 queries is use_native_unicode. But sqlalchemy's own docs state that it is better to keep use_native_unicode=True (http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html). Does anyone know why use_native_unicode is making such a big performance difference? And what are the ramifications of turning off use_native_unicode?

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  • Union All Won't work in stored procedure

    - by MyHeadHurts
    ALTER PROCEDURE [dbo].[MyStoredProcedure1] @YearToGet int AS Select Division, SDESCR, DYYYY, Sum(APRICE) ASofSales, Sum(PARTY) AS ASofPAX, Sum(NetAmount) ASofNetSales, Sum(InsAmount) ASofInsSales, Sum(CancelRevenue) ASofCXSales, Sum(OtherAmount) ASofOtherSales, Sum(CXVALUE) ASofCXValue From dbo.B101BookingsDetails Where Booked <= CONVERT(int,DateAdd(year, @YearToGet - Year(getdate()), DateAdd(day, DateDiff(day, 1, getdate()), 0) ) ) and (DYYYY = @YearToGet) Group By SDESCR, DYYYY, Division Having (DYYYY = @YearToGet) Order By Division, SDESCR, DYYYY union all SELECT DIVISION, SDESCR, DYYYY, SUM(APRICE) AS YESales, SUM(PARTY) AS YEPAX, SUM(NetAmount) AS YENetSales, SUM(InsAmount) AS YEInsSales, SUM(CancelRevenue) AS YECXSales, SUM(OtherAmount) AS YEOtherSales, SUM(CXVALUE) AS YECXValue FROM dbo.B101BookingsDetails Where (DYYYY=@YearToGet) GROUP BY SDESCR, DYYYY, DIVISION ORDER BY DIVISION, SDESCR, DYYYY The error I am getting is Msg 156, Level 15, State 1, Procedure MyStoredProcedure1, Line 36 Incorrect syntax near the keyword 'union'. But my goal here is the user inputs a year for example 2009, my first query will get all the sales made in 2009 to the same date it is was yesterday 12/23/2009, while the second query is getting 2009 totals up to dec 31 2009. I want the columns to be side by side not in one column

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  • Regular non-low energy bluetooth for IOS

    - by user3712524
    Ok, so I can't get my app to connect with a peripheral using bluetooth low-energy(my app is installed on an iPhone 5s and I have LightBlue installed on an iPhone 4S, simulating a peripheral. I also have light blue installed on the 5s, simulating a central, to verify that the two can connect and they do.) I have verified that the centralManager is instantiating and the State is powered on. So, my question is, is regular bluetooth still a viable option? Can I just use the GameKit API and go that route? Thanks in advance!

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