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• FtpWebResponse and StreamReader - specifying an offset

  - by AJ

  Hi, I am using the FtpWebRequest / FtpWebResponse objects in C# to download files from a server - so far, so good. I create a StreamReader object from the response stream and use a StreamWriter to create a local file. Now, the file I am reading happens to be in a very simple 'archive' format - there is a small TOC at the start of the file followed by the actual file data. I can therefore read the TOC and get a file offset and size of the data I want to download. My question is: Supposing the offset is 1024. I would use StreamReader.Read(buffer, 1024, length), but will .NET and the FTP protocol actually allow me to skip bytes 0-1023, or does the reader still go through the (relatively) slow process of downloading and discarding the bytes I don't need? This may make the difference between whether I want to use a single archive file, or a TOC file with the data files stored separately. As a bit of a secondary question, would my mileage vary using the Http classes instead of Ftp? Cheers, Adam

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• How to convert "9:00 PM EST" to a Date object

  - by Bara

  I am developing an Android application and require some basic datetime manipulation. I have a Date object (from Java.util.Date) holding a specific date. I need to add a specific time to it. The time I have is a string in this format: "9:00 PM EST" How would I "add" this time to the previous date? If the Date object currently has: "4/24/10 00:00:00" How would I change it to instead be: "4/24/10 09:00:00 EST" I would prefer to do this without the use of an external library, if possible.

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• VBScript Permission Denied on CopyFile

  - by Chris

  I'm running a VBScript in SQL Agent but I get a 'Permission Denied' on line 34 (the first copy attempt). I've run this script outside SQL Agent with no problems Function Main() Const SourceDrive As String = "X:\" Dim fso Dim Today Dim FileName Dim FromFile Dim FromDrive Dim ArchivePath Set fso = CreateObject("Scripting.FileSystemObject") Today = Format(Now, "yyyyMMdd") 'To add more sources just add them to the array list Dim Sources() As Variant Sources() = Array("Item1", _ "Item2") 'To add more targets just add them to the array list Dim Targets() As Variant Targets() = Array("C:\Users\myalias\Desktop\MyToFolder", _ "C:\Users\myalias\Desktop\MyToFolder2") For i = 0 To UBound(Sources) FileName = "WebSurveyAlertCallbacks_" & Sources(i) & "_" & Today & ".xls" FromDrive = fso.BuildPath(SourceDrive, Sources(i)) FromFile = fso.BuildPath(FromDrive, FileName) ArchivePath = fso.BuildPath(FromDrive, "Archive") If fso.FileExists(FromFile) Then For t = 0 To UBound(Targets) fso.CopyFile FromFile, fso.BuildPath(Targets(t), FileName), True Next fso.CopyFile FromFile, fso.BuildPath(ArchivePath, FileName), True fso.DeleteFile FromFile End If Next Set fso = Nothing Main = DTSTaskExecResult_Success End Function

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• String Functions in IIS Url Rewrite Module

  - by Nariman

  The IIS URL Rewrite Module ships with 3 built-in functions: * ToLower - returns the input string converted to lower case. * UrlEncode - returns the input string converted to URL-encoded format. This function can be used if the substitution URL in rewrite rule contains special characters (for example non-ASCII or URI-unsafe characters). * UrlDecode - decodes the URL-encoded input string. This function can be used to decode a condition input before matching it against a pattern. The functions can be invoked by using the following syntax: {function_name:any_string} The question is: can this list be extended by introducing a Replace function that's available for changing values within a rewrite rule action or condition? Another way to frame the question: is there any way to do a global replace on a URL coming in using this module? It seems that you're limited to using regular expressions and back-references to construct strings, without a search/replace functionality to replace every X with Y in {REQUEST_URI} before issuing a redirect.

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• Custom components vs default components in GUI Design. Which is more practical? (.NET)

  - by AlexRednic

  Ok, so is it better to create my own components (Either inherit them from existing ones or creating them from scratch) or to use the ones that come by default? I'm asking this under the umbrella of scalability, overhead and other factors that my contribute on each of the choices. UPDATE: Sorry if I'm to vague. I don't really know how to explain myself better. Isn't it a good idea to inherit each default component? For example what if I'm to design a rather large application and for example i need to change the display format on a DateTimePicker. Wouldn't it better to think ahead and inherit it and use the inherited component instead of the defaults? But, wouldn't it add a lot of overhead in small applications?

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• Fibonacci Numbers in Haskell

  - by boraer

  Hi everbody I need to change my F# code to Haskell code but I am so new in Haskell and I can not this My code simply read data from keyboard if data not an integer return an error message then calculate the n fibonacci number then writes to a list after that writes the list into a txt file Here is my code open System let rec fib n = match n with |0->0 |1->1 |2->1 |n->fib(n-1)+fib(n-2);; let printFibonacci list = for i=0 to (List.length list)-1 do printf "%d " (list.Item(i));; let writeToFile list = let file = System.IO.File.Create("C:\out2.txt") let mutable s ="" let writer = new System.IO.StreamWriter(file) try for i=0 to (List.length list)-1 do s <- list.Item(i).ToString() writer.Write(s+" ") finally writer.Close() file.Dispose() printfn "Writed To File" let mutable control = true let mutable num = 0 while control do try printfn "Enter a Number:" num <- Convert.ToInt32(stdin.ReadLine()) let listFibonacci = [for i in 0 .. num-1->fib(i)] printFibonacci(listFibonacci) printfn "\n%A"(listFibonacci) writeToFile(listFibonacci) control<-false with | :? System.FormatException->printfn "Number Format Exception"; Console.ReadKey true|>ignore

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• What would be the best schema to store the 'address' for different entities?

  - by Cesar

  Suppose we're making a system where we have to store the addrees for buildings, persons, cars, etc. The address 'format' should be something like: State (From a State list) County (From a County List) Street (free text, like '5th Avenue') Number (free text, like 'Chrysler Building, Floor 10, Office No. 10') (Yes I don't live in U.S.A) What would be the best way to store that info: Should I have a Person_Address, Car_Address, ... Or the address info should be in columns on each entity, Could we have just one address table and try to link each row to a different entity? Or are there another 'better' way to handle this type of scenario? How would yo do it?

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• another approach to returning some thing to browser in mvc with ajax call instead of using response.

  - by Sadegh

  hi, i have one section in my mvc 2.0 project which doing some processes and after each, return some messages (string) with response.write(). and this messages returned to browser with bad format. i want to return messages to one specific HTML div and add each to end of contents of div tag. now how do this? this event after each procces raised and message returned to browser. public void OnProgressEvent(System.Object source, CustomEventArgs customEventArgs) { if (customEventArgs.Level > 5) { Response.Write(customEventArgs.Message + "<br />"); Response.Flush(); } }

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• override the operator overloading in C++ ?

  - by stdnoit

  helo guys i have class call Complex I did operator overloading like such Complex c = a + b; // where a and b are object of Complex class which basically is operator+(Complex& that); but I dont know how to say for example double c = a + 10; //where a is object of Complex class but 10 is integer / double I did define typecasting for a to be double get my IDE says that there are too many operands + and it somehow complains for not being able to "understand" the + it has to be in this format though double c = a + 10; thanks

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• EXCEL import to sql returning NULL for decimals when in VARCHAR data type

  - by Daniel

  Hi, I am working on a peice of software which has expodentially grown over the last few years and the database needs to be regularly updated. Customers are providing us with data now on large spreadsheets which we format and will start importing into the database. I am using the Import and Export Data (32-bit) Wizard. One column in the database contains values like '1.1.1.2' etc and i am importing them in as a Varchar as that is the data type in the database. However, for values like '8.5', 'NULL' is getting imported insead. It only occurs when there is one decimal point. Is this a formatting error with excel or is it the wrong datatype?

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• Rendering Views as String with Spring MVC and Apache Tiles

  - by lynxforest

  I am trying to reuse some of my tiles in a controller which is returning a json response to the client. I would like to return a json response similar to the following format: { 'success': <true or false>, 'response': <the contents of an apache tile> } In my controller I would like to perform logic similar to this pseudocode: boolean valid = validator.validate(modelObj) String response = "" if(valid){ response = successView.render() // im looking for a way to actually accomplish // this, where the successView is the apache tiles view. // I would also need to pass a model map to the view somehow. }else{ response = errorView.render() } writeJsonResponse(httpResponse, /* a Map whose json representation looks like the one I described above. */)

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• Storage drives is causting system crash

  - by Chad

  I'm running Centos 5.4 with 750GB(ntfs) and 2TB drives for storage. Originally I installed the 750, everything seemed fine and then I installed the 2TB drive with NTFS already partitioned. I noticed when I would copy a lot of videos it would crash (no mouse or response from server) about 20min into it. After doing some troubleshooting I noticed the 750 would also crash when doing the same task so I decided that NTFS may be the problem. I unmounted the 2TB drive and tried to partition and format it using ext2 but when using parted it would crash at this point "writing inode tables". Looking at the dmesg logs I believe this is the error "mtrr: type mismatch for e0000000,10000000 old: write-back new: write-combining". Any idea as to what could be causing this?

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• How SqlDataAdapter works internally?

  - by tigrou

  I wonder how SqlDataAdapter works internally, especially when using UpdateCommand for updating a huge DataTable (since it's usually a lot faster that just sending sql statements from a loop). Here is some idea I have in mind : It creates a prepared sql statement (using SqlCommand.Prepare()) with CommandText filled and sql parameters initialized with correct sql types. Then, it loops on datarows that need to be updated, and for each record, it updates parameters values, and call SqlCommand.ExecuteNonQuery(). It creates a bunch of SqlCommand objects with everything filled inside (CommandText and sql parameters). Several SqlCommands at once are then batched to the server (depending of UpdateBatchSize). It uses some special, low level or undocumented sql driver instructions that allow to perform an update on several rows in a effecient way (rows to update would need to be provided using a special data format and a the same sql query (UpdateCommand here) would be executed against each of these rows).

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• Javascript src starts with //?

  - by Chris

  I'm starting to see more and more script references show up like so: <script type="text/javascript" src="//somedomain.com/somescript.js"></script> Note the lack of http: at the beginning of the src attribute. It seems to work fine and avoids the messy requirement of detecting http vs https, but I've never actually seen this uri format referenced anywhere. Where did it come from? Is this behavior documented anywhere? Is it guaranteed to work in any browser?

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• Rendering a different controller and action while keeping errors

  - by DerNalia

  I have a form in one controller(A) that renders a partial from another controller(B), and stays on A's edit page during editing / updating etc. However... When the partial form form controller B has an error, the error doesn't show up on A's edit page right now, if there is an error, I am doing (in controller B's update method) redirect_to :controller => "A", :action => "edit" and then this is built in... but I don't know what to do with it... the error needs to be sent to controller A... but.. it doesn't format.xml { render :xml => @varFromB.errors, :status => :unprocessable_entity } thanks

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• What encoding does Flash Builder use to send non-English data to servers?

  - by Ole Jak

  In my site I use Unicode... I hoped when I'll connect Flash Builder to my server (using Data - connect to HTTP ) It will work with my API sending Russian text as UTF-8 but instead it sends Þûõó ïúушúøý to my API and so to DB and so on instead of my favourite UTF-8 &#1056;&#1091;&#1089;&#1089;&#1082;&#1086;&#1077; &#1048;&#1084;&#1103; 2... So what encoding uses flash builder and How to make Flash Application send UTF-8 data to my server or some other readable format?

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• How to repopulate DataTables when having lots of data?

  - by chobo2

  Hi I am using datatables jquery plugin. I now have to clear the entire datatable and populate it with new data on the fly(all done through ajax). So what I was thinking to do is when I need to do this. Destroy the datatable remove the data html call up the partial view that renders the table Rebind the datatable with jquery. However it seems that datatable has no destroy method. So I know you can set the datatable to do something with ajax but I am not sure how. My datatable just uses the dom way when the page is loaded. I don't want to use the "fnAddData" as I am not sure how to format this 2d array they want and I don't think this is the best option. I think the best option is some how render the partial view back and use there ajax plugin. But I am not sure where that is or how to use it(I know it exists but that's about it). Thanks

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• 'Recursive' LINQ calls

  - by Sir Psycho

  Hi, I'm trying to build an XML tree of some data with a parent child relationship, but in the same table. The two fields of importance are CompetitionID ParentCompetitionID Some data might be CompetitionID=1, ParentCompetitionID=null CompetitionID=2, ParentCompetitionID=1 CompetitionID=3, ParentCompetitionID=1 The broken query I have simply displays results in a flat format. Seeing that I'm working with XML, some sort of recursive functionality is required. I can do this using recursion, but would like to see the linq version. Any help appreciated. var results = from c1 in comps select new { c.CompetitionID, SubComps= from sc in comps.Where (c2 => c2.CompetitionID == c1.CompetitionID) select sc };

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• javascript font size not working

  - by Fernando SBS

  why this don´t work: function rp_insertTable() { FM_log(3,"rp_insertTable() called"); var farmTable = dom.cn("table"); var ftableBody = dom.cn("tbody"); var i; var maximize = GM_getValue("Maximize_" + suffixGlobal, 0); farmTable.className = "FMtbg"; farmTable.id = "farmMachineTable"; farmTable.setAttribute('cellpadding', 2); farmTable.setAttribute('cellspacing', 1); farmTable.style.marginBotton = "12px"; farmTable.style.font = "bold 12px arial,serif"; farmTable.style.font = "bold 12px arial,serif"; the font does change in format, but the font size is not working, I can put 100px and it deosn´t change anything, why is that?

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• setting minDate in datepicker in Rails

  - by Sakshi Jain

  I need to apply minDate attribute to the datepicker in Rails App. In _admin_controls.html.erb <%= f.input :end_date, wrapper: :append do %> <div id="datepicker" class="datepicker input-group edit-left"> <%= f.text_field :end_date, :class => "datetime form-control" %> application.js contains jQuery(document).on('focus', 'input.datetime', function() { opts = {format: 'M dd, yyyy', autoclose: true}; jQuery(this).datepicker(opts); jQuery(".datepicker").css("z-index",10000); }); What should be the javascript to do so only for _admin_controls.html.erb?

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• Convert Military time to string representation

  - by RRUZ

  I have an column declarated as int (called HourMil) wich store the time in military format. i need convert this values to an formated string (HH:MM) example HourMil = 710 -> must be 07:10 HourMil = 1305 -> must be 13:05 Actually i am using this code (and works ok) for convert the column HourMil to the string representation. SELECT SUBSTRING(LEFT('0',4-LEN(CAST(HourMil AS VARCHAR)))+CAST(HourMil AS VARCHAR),1,2)+':'+SUBSTRING(LEFT('0',4-LEN(CAST(HourMil AS VARCHAR)))+CAST(HourMil AS VARCHAR),3,2) FROM MYTABLE but I think this code can be improved.

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• Using Public/Private keys in reverse

  - by Wizzarding

  Hi, I have a situation where I need to make some data available for reading by anyone from a specific device, where the data is pre-loaded on the device, but I cannot allow anyone to create their own device and populate it with their own data in the same format. I know this sounds a little crazy, but there is a good reason! I was planning to use Public Key cryptography, encrypting the data with a public key, but then publishing the private key to anyone who wants to read the data. However, after looking at the RSACryptoServiceProvider and how it works it looks like I cannot just publish the private key as the private key can be used to create the public key. Could someone confirm that suspicion, or give me some hints on how I might be able to make this work! Many Thanks.

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• Linking directly to the Write Review page from iPhone

  - by bparanj

  I have been trying to redirect the user to the review page. I tried 3 different URL formats: {http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=350212768&mt=8} (goes to the product page on safari) {http://itunes.apple.com/us/app/british-accent/id350212768?mt=8#} (Goes to the product page in iTunes store on the device) {http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?id=350212768&pageNumber=0& sortOrdering=1&type=Purple+Software&mt=8} (results in too many redirects) Could you please tell me what the URL format should be to link directly to the review page? Thanks.

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• jQuery AJAX & Multiple sp Result Sets

  - by Kevin

  Is it possible to use a stored procedure that returns multiple result sets in json format and process them as part of one request using ajax calls in jquery? In other words, I have a stored procedure that returns several result sets that are to be used with a series of select boxes that are all being filtered by the same criteria. If any of the select boxes is chosen that value is then passed to the stored procedure and all the subsequent select box updates reflect only results that match the filtered criteria. I don't want to have to call the same sp multiple times to process the results and was trying not to create multiple queries, so I'm wondering if it's possible to store more than one json result in a single request and then store and process them on the client side.

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• Cannot pass a input from text box to a query string and then keep the string in this box.

  - by Nikita Barsukov

  I have a simple ASP.net page: <form id="form1" runat="server"> <p><asp:TextBox id="input_box" runat="server"></asp:TextBox> <asp:Button Text="OK" runat="server" OnClick="run" /></p> </form> I want to send input from input_box to a query string, and then keep this input in the input_box when the page reloads. That's the code behind page: protected void Page_Load(object sender, EventArgs e) { input_box.Text = Request.QueryString["input"]; } protected void run(object sender, EventArgs e) { string url = string.Format("?input={0}", input_box.Text); Response.Redirect(Request.Url.AbsolutePath + url); } Problem is that when query string is not empty, string from input_box cannot be passed to query string. How to correct it?

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