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by Marc Clifton
An interactive demo of how audit and consistency proofs work
by Member 4206974
FormGen, a JavaScript Form Generator
by Ashley Davis
A demo of Highstock using Data-Forge with financial data loaded from Yahoo
by Alexander Semjonov
Developing fastest FFT implementation based on precompile tool using data driven approach

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by raddevus
An informal study of the Sqlite database and how many concurrent inserts it can handle. Will help you decide if you want to use Sqlite in your projects.
by Federico Di Marco
Fededim.Extensions.Configuration.Protected is an improved ConfigurationBuilder which allows partial or full encryption of configuration values stored inside any possible ConfigurationSource and fully integrated in the ASP.NET Core architecture using Data Protection API.
by Member 4206974
FormGen, a JavaScript Form Generator
by Pete O'Hanlon
Rather than littering a razor component with @if (a == b) logic to show items, use render fragments to make a declarative component

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13 Mar 2017 by Marc Clifton
An interactive demo of how audit and consistency proofs work
15 Jan 2024 by Member 4206974
FormGen, a JavaScript Form Generator
16 Feb 2017 by Ashley Davis
A demo of Highstock using Data-Forge with financial data loaded from Yahoo
3 Jul 2017 by Alexander Semjonov
Developing fastest FFT implementation based on precompile tool using data driven approach
25 Jan 2016 by Garbel Nervadof
Convert HTML table data from a website into PHP array
30 Oct 2017 by Kornfeld Eliyahu Peter
“Beware the Jabberwock, my son! The jaws that bite, the claws that catch! Beware the Jubjub bird, and shun The frumious Bandersnatch!” - LEWIS CARROLL
10 Feb 2020 by Shenwei Liu
Creating PDF reports for grouped or non-grouped data lists in C# with many custom options and configurations (providing source code with .NET Framework 4.6.1 and .NET Core 3.1)
26 Jun 2023 by Pete O'Hanlon
Rather than littering a razor component with @if (a == b) logic to show items, use render fragments to make a declarative component
31 May 2022 by Jochen Haar
Class to manage the content of Comma Separated Value Files or to deal with Structured Tables in memory
16 Sep 2020 by John B Oliver
Resolve unreferenced type in .NET app using partial type name from GAC
23 Mar 2019 by Minh Tuan Do
A considerable method to speed up query running time
1 Dec 2015 by Umer Qureshi
How to create a Custom Control so it can be used later and how to give access to some of it properties
7 Apr 2018 by #realJSOP
An example of evolving code to fit new demands
3 Jan 2013 by Young Ye
This article solve the performance issue while loading and displaying large amounts of data by using a virtual list with paged data technique.
29 Apr 2021 by Matthew Dennis
A Redis Client written from the ground up using System.IO.Pipelines, Span, etc
28 Feb 2014 by ASP.NET Community
ViewState is the mechanism that allows state values to be preserved across page postbacks.Because of the stateless nature of web pages, regular
10 Feb 2016 by Jesus Carroll
SQL Server 2016 introduces support for system-versioned temporal tables as a database feature that brings built-in support for providing information about data stored in the table at any point in time rather than only the data that is correct at the current moment in time.
1 Aug 2016 by dibley1973
The stored procedure framework now supports dynamic fields within multiple recordsets
22 Nov 2016 by Miguel Diaz Kusztrich
Using R to explore complexity of time series generated by simple process
6 Apr 2011 by Espen Harlinn
Assuming you have a class for your tree nodes similar to:[Serializable]public class NodeBase : Base { NodeBase parent; string name; [Bindable(true)] [Browsable(true)] public NodeBase Parent { get { ...
14 Jul 2011 by Sergey Alexandrovich Kryukov
The point of hashing and Dictionary is using the unique keys bur also fast search by the key, which you can call indexing. The speed of search is of O(1), see http://en.wikipedia.org/wiki/Big_O_notation[^]. If you think about it, you will understand that a non-unique key cannot be used with...
4 Dec 2011 by Sergey Alexandrovich Kryukov
Why 24 bytes? This is the size of 3 8-bytes (64-bit) words. You probably use 64-bit system. The size of int is system-dependent. And no, the structure size does not have to be the sum of the member sizes. It depends on structure memory alignment which can be different. Is is usual to use...
17 Aug 2012 by ManojKumar19
Update row column with another row column in same table SQL only if it is null.
29 Nov 2012 by RovenetBill
ASP.NET c# component for editing SQL tables with plug-in column format adapter architecture.
21 May 2014 by Kornfeld Eliyahu Peter
There are a few things you can do (and I deal with historical data with over 560.000.000 records so far).1. Make your table partitioned, probably over some column of date. That can help SQL to scan index pages only for a specific time frame.2. Choose carefully your clustered index. The...
10 Jun 2016 by Patrice T
Wrong way.You have to change the way your app is organized.30000 rows takes huge time to retreive from database, and it takes huge time to build the grid. There is also very little chances that someone ever have real usage of the 30000 rows in a single grid.You have to change how your...
14 Jul 2016 by OriginalGriff
If I do a dummy setup and test on your code:public class MachineAD { public string Name; public int ID; }public class Machine { public string BarCode; }public class MachineUnified { public int IDad; public string NameFromAD; public...
17 Jan 2019 by CPallini
The logic of the recursive (say) sum function is already given in the exercise text. Just the implementation is missing. Now what is exactly your problem with such implementation? If you are not able to write a recursive function, then have a look at this page: C++ Recursion - Recursive...
22 Nov 2020 by Sandeep Mewara
A look into graph based algorithm
15 Jan 2021 by DotNetLead.com
How to implement paging and sorting to yield good performance
7 Feb 2024 by Federico Di Marco
Fededim.Extensions.Configuration.Protected is an improved ConfigurationBuilder which allows partial or full encryption of configuration values stored inside any possible ConfigurationSource and fully integrated in the ASP.NET Core architecture using Data Protection API.
30 Aug 2011 by sachin10d
______________...
2 Sep 2011 by Abhinav S
StepsStep 1) You need to host the database in central server / location and allow client programs to access it.Step 2) You will need to make sure all clients have network access to this location.Step 3) To do this, you will need to setup a database connection, say an ODBC setup, on every...
11 Oct 2013 by ASP.NET Community
Hi everyone. We all know the role of ajax and its implementation. We can use ajax in asp.net as well as in javascript/jquery. But there is a
11 Oct 2013 by ASP.NET Community
  The ListView control is a new data presentation control that was added to .Net 3.5 , you may wonder why its added to the framework , and what it
11 Oct 2013 by ASP.NET Community
CachingAuthor: Prakash Singh MehraIntroduction: It is a way to store the frequently used data into the server memory which can be retrieved very
21 May 2014 by Maciej Los
Amol_B wrote:My Question is, is there any by which we can load large data(greater the 3 GB ) within a minute ?(...)A select * for table query takes 27 Minutes Retrieve dataNo, there is no method to load 10 millions records within one minute even if you add indexes, make partitioned your...
21 May 2014 by Jörgen Andersson
I'm seeing two errors here.Firstly average usage and consumption per item is aggregation of data.Filtering and aggregation is what the database excels at. So why on earth do you want to move the whole bunch of data off the database. Do your aggregation in the query.Were having a database...
18 Oct 2015 by Andreas Gieriet
Each meaningful test consists of stimulus, expected result, actual result an a comparator that compares the expected and the actual result.If you compare the actual versus the expected result here, you see that you have a precision issue.The expected result seems to be on three figures only....
19 Oct 2015 by nv3
To me it looks like your results are correct to 15 significant digits, which is what was to be expected calculating in type double. So there is nothing to complain about. I assume your reference results were taken from a book and only the first three digits after the decimal were printed. So...
26 May 2016 by Karthik_Mahalingam
Create a property in Form2 public partial class Form2 : Form { public int[] MyArray { get; set; } public Form2() { InitializeComponent(); }Assign the value to the property of Form2 before calling show() int[] data = new int[1000]; ...
10 Jun 2016 by Dave Kreskowiak
Wrong, wrong, WRONG! Users NEVER want to look at 30,000 rows. Hell, I don't even like looking at 20 rows.Setup your grid for paging. You only need to show a small number of rows. Each page the grid shows should generate a request to the WCF service that will return just that number of...
7 Jan 2018 by Ashley Davis
How to download stock market data from Alpha Vantage
24 Feb 2018 by BillWoodruff
Knowing your tree's item nodes are always leaf nodes of a specific type makes your task a bit simpler. I'm going to post a sketch of a structure that will implement a tree of this type which I know works. I say "sketch" because my goal is to assist you in developing your programming skills ......
8 Nov 2018 by DataBytzAI
Overview of encryption at rest, in motion and in use with Azure Encryption
17 Jan 2019 by OriginalGriff
First let's deal with the "compilation errors": You can't just copy your homework question into a .C source file and compile it - that will never, ever work! The question is am English description of what your teacher requires the code to do, it is up to you to read the instructions and write...
22 Sep 2020 by Richard Deeming
Try something like this: var rows = dtbl.Rows.Cast().Select(r => Convert.ToString(r[0])) JArray token = new JArray(rows.Select(r => JToken.Parse(r)));
5 Apr 2011 by Sergey Alexandrovich Kryukov
There is not need to use ArrayList, ever. Instead, use generic System.Collection.Generic.List. Non-generic containers are rendered obsolete with introduction of generics in the .NET Framework 2.0.—SA
5 Apr 2011 by Abhinav S
I would consider using a Dictionary object.
5 Apr 2011 by dan!sh
You do not need ArrayList or anything to do a "save" of the treeview. You can have all the details in the TreeView object. For the actual save of the treeview structure (assuming you are saving that), you will need to have a database set up (depending on the application size) to map all the...
25 Apr 2011 by Gil Fink
A simple solution for using lambda extensions instead of strings while configuring a WCF Data Service
7 Jul 2011 by Wonde Tadesse
Bigint size is -2^63 through 2^63-1. You are quite far away to reach here. There is no worry about it.
2 Sep 2011 by Wendelius
To add to Abhinav's answer, since this is an Access project, the client needs to have direct access to the database files. This means that you most likely have to share the folder where the files are located.For the future. If you plan to have more clients and you want to achieve more secure...
14 Oct 2011 by Sergey Alexandrovich Kryukov
Look at the very first line of main. Where top comes from? You never allocated memory for this pointer.—SA
10 Dec 2011 by thatraja
Fix linkMSDN - SSIS Debug Host has stopped working[^]
6 Jun 2012 by Stephen Hewison
Here you go:SELECT TOP 3 NewsId, NewsTitle, NewsDate FROM NEWS ORDER BY NewsDate DESCThe following orders the results so the newest are at the top:ORDER BY NewsDate DESCThe following instructs the SELECT to get just the first 3 rows:SELECT TOP 3
31 Jul 2012 by enhzflep
Here you go - I hope it's what you're interested in. If not, let me know and I'll do the best I can. :)Get data from excel sheetvar excelApp=null, excelFile=null, excelSheet=null;var filename =...
29 Aug 2012 by Maciej Los
First of all, read about MS Excel's objects[^], because Sheet object and Worksheet object is not the same.The best programming practice is to use code with context. To explain what i mean, do it:1) Open or create few MS Excel Workbooks,2) Activate first workbook and run this code:For i...
22 Oct 2012 by parths
A couple of changes I would suggest are,The largest positive number is 0x7fff / 0x8000. So instead of dividing by 32767, we need to divide by 32768.Also, change the 'unsigned int F' declaration to 'short'. What this will do is give you the 2's complement negative number which you're looking...
22 Oct 2012 by Jochen Arndt
According to the documentation signed numbers are represented in the two's complement format. To convert them you may use this:// Get the absolute number masking out the sign bitint n = ((msg0 & 0x7F)
6 Nov 2012 by kankeyan
you need to reseed the identity column. check for the below example.Hope this may help you.If helps Vote it.USE AdventureWorksGO/* Create a table with one identity column */CREATE TABLE TableID (ID INT IDENTITY(1,1), Col VARCHAR(10))GO/* Insert 10 records with first value...
6 Nov 2012 by Eyakem
Here is a quick example, i'll walk you through..1 Lets create a table called UserTable2 insert four rows3 delete the first row (so we are where you are now, a table that starts from ID=2My solution: copy the contents of the table to a temporary table, truncate the origional table and...
2 Dec 2012 by CHill60
Firstly your comment "which read first worksheet (by default)" isn't quite accurate - it's simply that the first sheet was active the last time you saved the spreadsheet ... if you had left the 2nd sheet visible before saving and closing the spreadsheet then the second sheet would have been read...
19 Dec 2012 by Christian Graus
You mean 'about internet explorer' ? It's just generated by code in the exe. If you mean an about page that a site has, it's HTML on the site.You can keep data in memory without writing it to the file system, but you don't want to do that for too long. If the data is being moved in real...
1 Jul 2013 by Alexandros Pappas
This project measures performance of the DataTable.Merge method.
23 Sep 2013 by coded007
A word about Unified Dimensional Model we use in analysis services.
11 Oct 2013 by ASP.NET Community
Confused how to use DataSet and How to use DataReader?I am trying to give some of basic understanding about and differences between DataReader
11 Oct 2013 by ASP.NET Community
Programming theMicrosoft® ADO.NET Entity Framework            by David SceppaPublisher : MicrosoftProgramming EntityFrameworkBuilding Data Centric
7 Feb 2014 by Richard C Bishop
I believe the declaration of "@Period" as a DATETIME is skewing the data you think you are getting. If "@Period" is not going to be dynamic and will always be '2013/01/01' then I would make it a VARCHAR(15) data type. If it is a dynamic date, then try converting that date into the varchar format...
14 Feb 2018 by OriginalGriff
There are a couple of possible reasons - but none of them are good news. First, it could be an alignment problem - the tracks are narrow, and it doesn't take much to get real problems. Try a different drive and see if that does it. Second, your drive is faulty - they get banged, bounced, shaken...
9 May 2018 by JIANGWilliam
This is the second of three episodes to introduce considerations and techniques applied in Tuple classes in my open-sourced library functionExtensions.
8 Mar 2018 by Mike Ellison
On data, context, class-like architecture in Javascript, and ten-pin bowling.
20 Mar 2018 by Richard Deeming
Something like this: SELECT DH.DHid, DH.A, DH.B, DH.C, IsNull( ( SELECT TOP 1 DD.Remarks FROM DataDetail As DD WHERE DD.DHid = DH.DHid And DD.Remarks Is Not Null ORDER BY DD.DDid DESC ), ...
19 Aug 2018 by OriginalGriff
Well... look at your code. printf("else it's working!!!!!!!!!!!!!!!!'\n"); while(t->link!=NULL) { t=t->link; (/*
15 Sep 2018 by OriginalGriff
We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action. Try it yourself, you may find it is...
26 Sep 2018 by Dave Kreskowiak
Your code is written to expect an entire message in one "receive packet" but that's not how communication, over ANY network, works. Your receive code has to buffer whatever is gets and keeps on adding to the buffered content on subsequent receive events until a complete message has been...
15 Jan 2020 by phil.o
You should type "c# get web api data" in your favourite search engine, and follow the links and examples which it will provide to you. This is a quick answers forum, it is not meant to provide full tutorials on such large topics.
29 Jan 2020 by phil.o
The concept you need to do your task is called External sorting[^].
29 Jan 2020 by OriginalGriff
The first thing to do is to start by looking at what you have to sort: what does the file contain that needs sorting? What does it need sorting by? Think about it: if you have a stack of mixed banknotes on your desk, there are many ways to sort them: by denomination, by colour, by size, by...
10 Dec 2020 by André Marcos (Advisor), LaercioMBR
An overview of the development process of an online platform to facilitate community driven data cataloging and management.
22 Feb 2021 by grilialex
In scientific projects, it is often needed to sample sounds from remote locations, for classification or other purposes. As data link rates may be low or unreliable, transmitting raw samples to inland processing centers may not be an option. An alternative is to do off-line processing in batches.
31 Aug 2021 by OriginalGriff
Create the connection, open it, use it, close it. In C#, create the connection object in a using statement, and the system will close and dispose it when the object goes out of scope: using (SqlConnection con = new SqlConnection(strConnect)) ...
13 Feb 2011 by OriginalGriff
Google is your friend: using "iteration for quick sort in C" pasted from your question gave > 100,000 hits. The top one washttp://khatri-krishna.tripod.com/cgans.htm[^]Learn to use Google: it is quicker than asking a question...
11 Mar 2011 by Sergey Alexandrovich Kryukov
This is quite possible, but to make it really easy I would suggest you use Mono on Linux (http://en.wikipedia.org/wiki/Mono_(software)[^]).You can do it without Mono, of course, but will spend considerable amount of time for mapping all data types, set aside possibility to do remoting. With...
31 Mar 2011 by cjb110
To get the filter to apply, I added the following to the LinqDataSource:Where the ControlID is the id of the control on the master page.This filters after a post back...which is a bit ugly, so...
9 Jun 2011 by CDP1802
You are probably working with typed datasets. If that is the case, the table adapters for your datasets will be generated by Visual Studio. The type of the table adapter is not known in your code, resulting in the error.That means that you did not define the typed dataset (and the...
6 Jul 2011 by Mark Salsbery
Web services does not equal (!=) WCF. There's a variety of web services available besides WCF.WCF deals with communication between endpoints and doesn't deal with data and what you do with it once it gets to an endpoint. Data is often stored in databases like SQL server. You could...
7 Jul 2011 by Espen Harlinn
This is a great place to start: ASP.NET Data Access Tutorials[^]You might take a look at the other material too:ASP.NET Web Forms[^][Update]Doing it like RaviRanjankr suggests works fine, but it will not allow you to take advantage of the databinding features of the platform. Going...
7 Jul 2011 by Espen Harlinn
"I am worried about if I insert and delete things 1000s of times, that it would eventually have the id number go off Bigint boundaries. Is this possible?"It certainly is - it'll take a while though - I'll be quite surprised if any of us is still around :)Best regardsEspen Harlinn
7 Jul 2011 by fjdiewornncalwe
A bigint is 8 bytes in size which means you will have a max value of 9,223,372,036,854,775,807. I think you'll be ok.
25 Aug 2011 by TomSeemore
I have good skills and background with Visual Basic and writing SQL calls to an Access Database. I use Visual Studio 2010 and prefer to stick to VB as much as I can, unless I can find some code snippet to get me started if I need to use a different language.I have been asked by my employer...
25 Aug 2011 by Simon_Whale
I would look here to start with if you want to learn about creating data entry pages MSDN Web Developer Samples[^]
25 Aug 2011 by TheyCallMeMrJames
What you're talking about is very doable on many stacks. You should be able to find many samples around this.ASP.NET is certainly a quick route. FrontPage form parsing will be harder to write than a simple scaffolded MVC site.If you're looking at ASP.NET MVC and wondering if it seems...
25 Aug 2011 by Simon Bang Terkildsen
Fill up the pots with water and wait for enough time to pass so there is only 2 liters of water left in the pots.We don't do your homework
25 Aug 2011 by TomSeemore
So, I've spent most of the day reading the linked articles above and watching and working along with the video posted by Microsoft on MSDN Web Developer Samples. In the end, the project leads to data being entered in a Gridview and managed on the server side by that. This is all well and good,...
24 Nov 2011 by Not Active
http://msaccessmemento.hubpages.com/hub/Stored_Procedure_in_MS_Access[^]
28 Nov 2011 by Anuj Banka
For Normaliztion you should create seprate table for this.In future it will help you.Whn you have to use these types in multiple table.But again its depends upon your requirement also !!!
6 Dec 2011 by S V Saichandra
you can get samples from here:itextpdf.com/book/examples.phporTry this article:Creating PDF Tables using C# (.NET 2.0) and iTextSharp[^]
8 Dec 2011 by Sergey Chepurin
It is called: Data structure padding.If you change the order of structure members this way:struct structure1{ int i;//4 char ch;//1+3 (padding) double d;//8};-you will get 16 instead of 24.Here structure padding is explained good enough: Structure padding in C