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.NET4.6

.NET4.6

Great Reads

SignalR Chat App With ASP.NET WebForm And BootStrap - Part Three

by Altaf Ansari

SignalR Real-Time ChatApp with Emoji / Smiley and sending file attachment

Angular 4 Data Grid with Sorting, Filtering & Export to CSV

by Yaseer Mumtaz

This article helps to understand the architecture and use of simple data grid developed in Angular 4.

Simple Service-Based System for Massive Data Processing with ZooKeeper-Kafka and Redis

by Igor Ladnik

Basic infrastructure for massive continuous data acquisition and processing using ZooKeeper-Kafka and Redis

Newt: A Powerful C# Parser Generator in a Small Package

by honey the codewitch

An LL(1) pull parser and generator that thinks it's an LL(k) parser - with a rich, simple and beautiful EBNF syntax

Latest Articles

WCF Client For Web Services that Require Authorization by HTTP Header

by NikStar

Using OutgoingMessageProperties and OperationContextScope to implement authorization by http header for WCF client that communicates with non WCF-based web services.

Bring Your Animations to H264/HEVC Video

by Shao Voon Wong

Bring your animations to H264/HEVC video using C++ and C# with h/w acceleration

A Connection String Manager for Multi-Environment Ecosystems

by #realJSOP

This library is intended for use in a multi-environment system, but it certainly be used under less stringent environmental confines, even down to a single desktop machine taht needs to connect to a single database server.

WPF - Modeless Window Manager

by #realJSOP

For those times when you need more control over when a modeless window is created/displayed

All Articles

.NET4.6

SignalR Chat App With ASP.NET WebForm And BootStrap - Part Three

18 Sep 2018 by Altaf Ansari

SignalR Real-Time ChatApp with Emoji / Smiley and sending file attachment

Angular 4 Data Grid with Sorting, Filtering & Export to CSV

10 Jul 2017 by Yaseer Mumtaz

This article helps to understand the architecture and use of simple data grid developed in Angular 4.

Simple Service-Based System for Massive Data Processing with ZooKeeper-Kafka and Redis

15 Feb 2018 by Igor Ladnik

Basic infrastructure for massive continuous data acquisition and processing using ZooKeeper-Kafka and Redis

Newt: A Powerful C# Parser Generator in a Small Package

14 May 2019 by honey the codewitch

An LL(1) pull parser and generator that thinks it's an LL(k) parser - with a rich, simple and beautiful EBNF syntax

code-generation

BusinessRulesEngine for .NET Applications

1 Dec 2019 by Dan Ionescu (USINESOFT)

Complex cascade defaulting of properties on an object graph triggered by other property changes

A Regular Expression Engine in C#

31 Mar 2019 by honey the codewitch

A Non-Backtracking Regular Expression Engine for .NET (Core)

regular-expression

CsConsoleFormat: Introduction

3 Mar 2018 by Athari

CsConsoleFormat library for .NET - Formatting in Console using modern technologies

LINQ Part 3: An Introduction to IQueryable

20 Apr 2018 by Eric Lynch

Part 3 in the LINQ series, this provides an introduction to IQueryable, IQueryProvider, and LINQ expression trees.

Reflecting Within a Method Body

15 May 2018 by Eric Lynch

Extends .NET reflection to decode the byte array returned by System.Reflection.MethodBody.GetILByteArray(), discusses the techniques to achieve this, and provides a brief primer on .NET reflection.

Building a DevOps CI/CD Pipeline for ASP.NET Core with VSTS

7 Jun 2018 by Habibur Rony

This article mainly covers how to create new build and release definition using VSTS. There are short descriptions of DevOps, continuous integration, continuous delivery and continuous deployment.

.NET-Compiler-Platform

Extending Visual Studio to Provide a Colorful Language Editor

20 May 2018 by Eric Lynch

In this article, we explore the implementation of a Visual Studio editor that allows editing of a fictitious "Colorful" language. The editor minimally implements both syntax classification / coloring and IntelliSense completion.

Auto-generated columns in a WPF ListView

18 Feb 2021 by #realJSOP

A WPF ListView that automatically generates columns (that are also sortable) based on decorated entity properties

Just Another .NET AOP Framework: NConcern

7 May 2017 by Jung Hyun, Nam

Introducing NConcern, a free open source compile-time AOP framework

design-patterns

Upload File Via a Web Method

21 Jun 2017 by M.M.Mohseni

In this sample code, we are going to upload a file via a web method asynchronously.

WPF Drag and Drop using NP.Visuals Library

9 Sep 2018 by Nick Polyak

Drag and drop using NP.Visuals package

oops - A Cross-Platform, General Purpose Undo/Redo Framework

8 Oct 2018 by outbred

Design, implementation, and usage of the oops framework

Mimick - A Fody Aspect-Oriented Weaving Framework

9 Jun 2020 by Chris Copeland

A managed library for automated dependency injection, contract validation, and custom aspect-oriented decorator implementations

dependency-injection

Struples: A Useful JSON Superset

1 Apr 2019 by honey the codewitch

Code for parsing, querying, and emitting JSON or a JSON superset

Pck: Code Roundup and Quick Start Guide

20 Aug 2019 by honey the codewitch

Using PCK to create grammars, parsers and tokenizers for C# and other .NET languages

WPF - Modeless Window Manager

1 Mar 2021 by #realJSOP

For those times when you need more control over when a modeless window is created/displayed

A Connection String Manager for Multi-Environment Ecosystems

9 Mar 2021 by #realJSOP

This library is intended for use in a multi-environment system, but it certainly be used under less stringent environmental confines, even down to a single desktop machine taht needs to connect to a single database server.

connectionstring

How to Get Jwt Token for Logged On User or Application pool identity user using OAuth 2 from ADFS C#

13 Mar 2017 by Akkilz

How to generate Jwt security token for Application pool identity or logged on user using OAuth 2 from ADFS

Case Insensitive Search Filter in OData ASP.NET Core 2.0 Web API as an OWIN Middleware

31 Jan 2018 by Pawel idzikowski

How to replace the web API request query string to provide case insensitive OData search

How to convert json to XML with attributes in C#

6 Jun 2018 by Richard Deeming

If you want to stick with this inefficient approach, you'll need the JSON property names to be prefixed with the "@" character: public class SyncActivity { [JsonProperty("@MemberId")] public string MemberId { get; set; } [JsonProperty("@UserId")] public string UserId { get;...

Calling Oracle's Stored Procedures and Mapping User Defined Types (UDTs) from ASP.NET

26 Sep 2018 by MattiLindroth

An example on how to call Oracle stored procedures with UDTs from ASP.NET MVC / REST API

Binary Serialization with AnySerializer

3 Dec 2018 by replaysMike

How to binary serialize your classes without having to modify them

deserialization

Execute a methode from CMD

4 Apr 2019 by Thomas Daniels

What you can do is edit the Main method of your WinForms application and if you receive a certain command-line argument, say /checkOnly, then only call the StringFormat_check method: [STAThread] static void Main(string[] args) { if (args.Length > 0 && args[0] ==...

SharpCompress Using TreeView & ListView Example

7 Oct 2019 by Florin Pănescu

This example shows how to use SharpCompress library with TreeView & ListView.

Can I more select specific number from SQL query in C#

30 Mar 2017 by Garth J Lancaster

Have you tried the 'IN' SQL operator ?select * from tablewhere userID=@UserIDand number in (1005, 1009, 1012, 1017)

Break the habit of logfiles by using automated error handling in ASP.NET MVC5

14 Nov 2017 by jgauffin

Save time and effort with the help of codeRR, which finds and analyses errors for you, improving code quality along the way.

Specific cast is not valid in linq query when compare two tables

25 Apr 2018 by Richard Deeming

Looking at your screen-shot, the CurrentMeterReading field is an integer in one table, and a floating-point number in another. The Field extension method does not attempt to change the type of the source field. It simply tries to unbox it to the requested type. If the source type doesn't...

General Purpose Operating Parameters for Console Programs

7 Oct 2018 by David A. Gray

This article demonstrates a class library that supports command line parameters with default values stored in application settings.

When debug my C# windows application datetime converting works. But when it's deploy it's not working

18 Oct 2018 by OriginalGriff

The problem is almost certainly that the DateTime format used on your development machine is not the same as that on the production machine - and Convert.ToDateTime uses the current machine setting as the format for the conversion process. I'd strongly recommend that you forget all the Convert...

When debug my C# windows application datetime converting works. But when it's deploy it's not working

18 Oct 2018 by Richard MacCutchan

Do not use Convert for such issues, use DateTime.TryParse[^]. This allows more control over the format of the date. Remember that date representations vary according to culture; e.g. in US date format, 31/01/2018 is not valid as 31 is the month field.

Recommendations for C# .NET MVC content management tools

6 Nov 2019 by MadMyche

How hard is it to use Google: Google: aspnet mvc cms open source[^]

Why C# doesn't provide multiple inheritance (interface only has signature)

18 Jul 2020 by OriginalGriff

Because the language designers decided not to allow it. There is a deeper reason for this in that it adds a lot of complexity with not a lot of "real" benefit, and the reason for that is called the Diamond Problem: Multiple inheritance -...

How to use generate datamtrix 2d barcode and save it quickly

7 May 2017 by Dave Kreskowiak

Posting the same question over and over again is not going to change the answer. You're not generating the barcode, some library you're using is. Your code cannot be made to go much faster. Frankly, the requirement is ludicrous. There's no way you're going to generate hundreds of thousands of...

How to automatically close webpage using javascript?

16 May 2017 by Richard Deeming

You're trying to answer the wrong question. :) Don't try to find a way to use Javascript to close the browser window. Even if you find a hack to let you do that, it will be a bug in the browser, and will most likely be patched, breaking your script. Instead, use a different tool to make the...

.net framework 4.6.2 is installed but tls1.2 is not working

22 May 2017 by Dave Kreskowiak

To target .NET 4.6.2, you have to upgrade your Visual Studio to 2015. VS2010 only supports through .NET 4.0.

Cannot implicitly convert type

1 Jun 2017 by F-ES Sitecore

You are trying to add an EmployeeRegistration class to a collection of Employee objects. Employees.Add needs you to pass an Employee object but you are passing EmployeeRegistration. If you want to add to the Employees you need to add an Employee object.

C# how do I add image, audio, video to dotnetzip zip file without the original filepath?

16 Jun 2017 by Dave Kreskowiak

Ummm...it seems you have no idea how .ZIP files work. Either that or you're doing a terrible job of describing the problem. The original path is not saved in the .ZIP. If you add folders to a .ZIP the RELATIVE path is saved. That means the files are unzipped to a path relative to where the...

How to add a reference in ASP.NET MVC ? I am using framework 4.2.5

11 Oct 2017 by Wessel Beulink

The system core is located at: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.*.*\System.Core.dll I should just paste this lib down in your repo.

How to change/access tabcontrol's width which is in usercontrol in form1?

22 Dec 2017 by Richard Deeming

* Open the user control in the designer. * Select the tab control. * In the property grid, change the "Modifiers" to public. Or, open the user control's code file, and add a public property to get and set the width of the tab control. public int TabControlWidth { get { return...

How do I download pdf from pdfdrive.net automatically ?

30 Dec 2017 by David_Wimbley

Because in view source the HTML isn't populated that would indicate the HTML in the console is being loaded via ajax calls. Those calls, i believe, don't trigger if you are trying to download the HTML (which is what you are doing based on your code) which would explain why the html that you...

How to import data to SQL from excel data table by C#

7 Mar 2018 by Wendelius

Since you already have the data in a datatable, one easy way is to use SqlBulkCopy class. Have a look at the SqlBulkCopy.WriteToServer Method (DataTable) (System.Data.SqlClient)[^]. There's a nice example how to write data to the server with this method. There are also quite a lot of articles...

Specific cast is not valid in linq query when compare two tables

25 Apr 2018 by Maciej Los

Using IMEX=1 in connection string - admittedly - avoids crashes during the process of retrieving data for mixed data columns, but it causes OledDb provider to treat data as a text. More details, you'll find here: Microsoft ACE OLEDB 12.0 Connection Strings - ConnectionStrings.com[^] I'd remove...

How can I find all the libraries of .NET in visual studio ?

21 May 2018 by Dave Kreskowiak

Not directly, no. You would have to add the libraries to a project to see them in Object Explorer. There are TENS OF THOUSAND of types (classes/structs/enums/other) in the .NET Framework alone. Add ADO.NET, ASP.NET, MVC, Entity Framework, ... and you're probably going to clear 100,000 types. ...

How to decompress password protected files using 7Z?

19 Aug 2018 by OriginalGriff

Start with google: decompress 7z password protected files c# - Google Search[^] The top link alone shows you what to do: c# - SevenZSharp Decode with password - Stack Overflow[^]

How to read photos and ID number from bahrain smartcard using C#

27 Aug 2018 by Jochen Arndt

A rather old article: A Smart Card Framework for .NET[^] and a more recent project: GitHub - danm-de/pcsc-sharp: PC/SC wrapper classes for .NET, written in C#[^] How to read the data from a specific card depends on the card type. You have to get the specifications and use the APDU commands...

How to know which event fires from start of windows form running visual studio 2015

11 Sep 2018 by CHill60

The Microsoft Documentation has an article specifically on the order of events - Order of Events in Windows Forms | Microsoft Docs[^] EDIT after OP comment One way to track the order of events in controls or objects is to log them - you will need to use the IDE to generate the code stub for...

Cannot read large data size $.ajax from.net controller

28 Nov 2018 by Dave Kreskowiak

500 errors mean your server-side code crashed or otherwise threw an error. Unless YOU go through some diagnostic steps on your own code and supply additional information in your question, NOBODY can tell you what's going wrong with what you've posted in your question. We only get to work with...

How to add usercontrol to a panel on mainform from another form

2 Feb 2019 by Ravi Bhavnani

"How to add usercontrol to a panel on mainform from another form" Don't do that! Instead, your "Add Campain" dialog should simply return the type of campaign the user wants to add. It should be the MainFrm's responsibility to react to that and add the necessary user control to itself. It's...

Simple FTP Uploader Using Zip File For Software Update

18 Feb 2019 by Bloody Chicken

This program is designed to upload an XML file and a zip file automatically created to your FTP server. It can be used for software update.

How do I save an image to a folder after converting it?

3 Mar 2019 by Wastedtalent

You could do: returnImage.Save("C:\image.ext", ImageFormat.Jpeg); or bypass this bit and write the stream straight to a file using (var fileStream = File.Create("C:\image.ext")) { ms.InputStream.Seek(0, SeekOrigin.Begin); ms.InputStream.CopyTo(fileStream); }

Cachalot DB as a Distributed Cache with Unique Features

16 Apr 2019 by Dan Ionescu (USINESOFT)

LINQ extensions that allow to describe and to safely query cached data

How to validate email id exist or not using c#.net

22 Jun 2019 by OriginalGriff

You can't. There are ways to request a read receipt - so when a message is looked at, you get told it happened - but ... most email systems either ignore it or ask the user directly if they want to return one. Why? Spammers. If spammers can tell an email address that is "in use" from one that...

Threading advice & question

8 Aug 2019 by RickZeeland

The modern (and recommended) way of doing things is using Tasks, see: Task Class (System.Threading.Tasks) | Microsoft Docs[^] If you want to know what is so great about Tasks, read this series of CodeProject articles: Task Parallel Library: 1 of n[^] You can use Task.IsCompleted to check if...

Threading advice & question

5 Aug 2019 by honey the codewitch

Use tasks (System.Threading.Tasks) instead of threads, that way you won't necessarily even allocate a thread for an operation. For example, a lot of your services are IO bound - waiting for HTTP request response cycles. You can do a kernel wait on that, suspending it, and running other code...

Threading advice & question

5 Aug 2019 by Gerry Schmitz

Add callbacks for each service's "completed" event. Start all services. In each callback, set an indicator that that service has completed. At the same time, check all other "service" indicators. When all indicators are set, all services have run, and the last callback can trigger the "all...

Window service onstart event not fired

6 Aug 2019 by RickZeeland

The article you are referring too is too old, from 9 years ago. On Windows XP this would work but newer Windows versions simply do not allow Desktop interaction anymore.

Drag and Drop between Multiple Trees in Jquery using jstree

21 Oct 2019 by Chris A. Johnson

Drag and Drop between Multiple Trees in Jquery using jstree

Recommendations for C# .NET MVC content management tools

6 Nov 2019 by OriginalGriff

We are more than willing to help those that are stuck: but that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you. So we need you to do the...

Epplus bug image with insertrow

12 Nov 2019 by OriginalGriff

Then raise an issue with the GitHub repository, not on an unrelated site: Issues · JanKallman/EPPlus · GitHub[^]

Customerrors="on" using status code 302 instead 404 code in network tab in browser

28 Jan 2020 by Richard Deeming

By default, ASP.NET will issue a 302 redirect to the error handler. You can change that by setting the redirectMode to ResponseRewrite:

Tcp server problem with random connections

20 Feb 2020 by Richard MacCutchan

I do not have time to analyse all your code, but the following looks a little odd: if(tcp != clients[i]) // if not the client we want ... ? { So if the item you find in your list does not match the one you are...

Custom Authorization with User Groups using ASP.NET MVC

4 May 2020 by Ayyappan Ramachandran

An overview of custom authorization with user groups in MVC

How to get mouse point over picturebox while dragging

20 Aug 2020 by Grid-Code

Hi All Developing an windows form application vb, Busy dragging an image bitmap from another control, want to drop this image at the mouse position on the picturebox. The error which i have is that when i drag over the picturebox with the mouse...

Deploying Windows Service using Azure Pipeline

13 Nov 2018 by Prabakaran Rajendran

Setting up automated build and deployment for Windows service using Azure Pipeline

continuous-integration

How to get selected text for combox box in datagridview

10 Mar 2017 by ahmed_sa

I work in windows form c# vs 2015 i need to get text of selected value of combobox inside datagridview i can added success in datagridview but cannot get text for it . I replaced by column already exist his name Country and become Country2 this code of combobox Actually...

How to get selected text for combox box in datagridview

10 Mar 2017 by Patrice T

Dear Ahmed,After asking 52 questions, you should have learned a few basic things.Building an app is like playing with Legos, your task is to put together standard pieces to get what you want.Quote:How to get selected text for combox box in datagridviewThis is 2 questions completely...

Margin different from first page to another page when print

12 Mar 2017 by ahmed_sa

I work in report rdlc windows form applicationI face problem the top margin of matrix control different from first page to another pagesmeaningif starting of showing data from first page is start from 2cm from top of pagein another pages it start from 0.5 cm from top of pages...

reporting-services

How to change the location of database file dynamically in another networkhow do I...

28 Mar 2017 by Richard Deeming

Store your connection string in the application's configuration file:Connection Strings and Configuration Files[^]How to: Read Connection Strings from the Web.config File[^]How to get Connection String from App.Config in C#[^]That way, you won't need to recompile if you move the database.

Can I more select specific number from SQL query in C#

30 Mar 2017 by F-ES Sitecore

In addition to IN, if it is a range you want to select thenWHERE userID >= 1001 AND userID

Can I more select specific number from SQL query in C#

30 Mar 2017 by Richard Deeming

Quote:textbox have values 1002,1991,2007,3006so that how to select these valuesYou'll need to split the text, convert each value to an integer, and build up a parameterized SQL command using the IN operator:string text = YourTextBox.Text;string[] parts = text.Split(new[] { ',' },...

HTTP becomes HTTPS becomes HTTP...

30 Mar 2017 by Sander Rossel

It was a VPN connection that redirects everything to HTTPS...I'm not usually on VPN, but lately I've been needing it on and off.I feel stupid for not noticing it now...Anyway, glad I know the problem.

When generate 10000 matrix bar code it take too much time how to make generating take seconds

7 May 2017 by CHill60

I suggest that you have multiple threads writing these barcodes - see Asynchronous Programming[^] As an aside, do yourself and everybody else a favour and stop using the automatically generated names for objects Class1, textBox1, textBox4 etc etc. They might mean something to you now but they...

When generate 10000 matrix bar code it take too much time how to make generating take seconds

7 May 2017 by Patrice T

In this line: txt = "UserID" + dt.Rows[0][0] + "FirmName" + dt.Rows[0][1] + "OrderNo" + dt.Rows[0][2] + "BtachNo" + dt.Rows[0][3] + "Quantity" + dt.Rows[0][4] + "ProductName" + dt.Rows[0][5] + "SerialNo" + Serial; , a big part is constant in the loop: "UserID" + dt.Rows[0][0] + "FirmName" +...

When generate 10000 matrix bar code it take too much time how to make generating take seconds

7 May 2017 by Jochen Arndt

As already suggested move any constant data out of the loop and avoid using local and temporary variables inside the loop (especially those using dynamic memory allocation like strings): int items = Convert.ToInt32(textBox1.Text); string txtBase = "UserID" + dt.Rows[0][0] + "FirmName" +...

How to automatically close webpage using javascript?

16 May 2017 by Arthur Medeiros

Hey everybody, I have found many questions like mine in different forums, but I couldn't find an answer that actually helps to solve my problem in any of them. Basically, what I want is to open an URL through command prompt, it will open the browser, processes a webpage, and then I would like...

Request for the permission of type 'system.net.webpermission, system, version=4.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089' failed.

16 May 2017 by Richard Deeming

You don't. If the medium trust level is too restrictive, you need to get the hosting company to create and apply a custom policy: How To: Use Medium Trust in ASP.NET 2.0 ⇒ Step 3. Optionally Create a Custom Policy Based on Medium Trust[^] There's nothing you can do in your code to work around...

.net framework 4.6.2 is installed but tls1.2 is not working

21 May 2017 by Maciej Los

Please, check this: How to: Target a Version of the .NET Framework[^]

C# how do I add image, audio, video to dotnetzip zip file without the original filepath?

18 Jun 2017 by RickZeeland

I don't know about DotNetZip, but 7zip can do it, you can call it with Process.Start(). Examples from 7zip help: 7z a archive1.zip subdir\ adds all files and subfolders from folder subdir to archive archive1.zip. The filenames in archive will contain subdir\ prefix.7z a archive2.zip .\subdir\*...

Which .NET API(i.e web API , REST) are suitable android, ipad apps and web application

2 Jul 2017 by 9000605667

I am writing one .net API for Android, Ipad apps and Web application So i am little bit confusion which is suitable for above kinds of app. So Please give me guidance which can i pick to start (i.e) Web API (or) REST. Thanks, What I have tried: So Please give me guidance which can i pick to...

Which .NET API(i.e web API , REST) are suitable android, ipad apps and web application

2 Jul 2017 by David_Wimbley

Web API is a framework capable of implementing/being RESTful. Rest isn't a framework its more a methodology for going about implementing your API. There are restful APIs and non-restful API's. You could create a Web API application that isn't restful, its up to you to make it restful. I...

I want to send command on the server PC from my PC(say PC1) and that command will start and stop the application running in the server pc.please help.

3 Jul 2017 by F-ES Sitecore

You'll need an application running on the target PC that has some form of "listening" mechanism (usually a TCP/IP port) and the controlling PC would connect to that port on that machine and send instructions. The target PC will then receive the instructions and carry them out.

System.data.constraintexception: failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.

22 Jul 2017 by sommr0

Line 2960: this.Adapter.SelectCommand = this.CommandCollection[5]; Line 2961: CDS.ADDJOB_SELECTDataTable dataTable = new CDS.ADDJOB_SELECTDataTable(); Line 2962: this.Adapter.Fill(dataTable); Line 2963: return dataTable; Line 2964: } What I...

System.data.constraintexception: failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.

22 Jul 2017 by OriginalGriff

This is a generic error message, which can be caused by several things (and most of them aren't SQL related). See here: failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. - Google Search[^] and you will find most of teh common...

[ UWP ] how to use a COM based API in UWP application?

29 Aug 2017 by Ammar Shaukat

I’m currently working on a UWP app to work with scanners. This application is a POS app and reads barcodes. Windows 10 Provides its built in barcode scanner class. That is used for UWP apps but it is limited in functionalities. you can check it here. Window 10 barcode Scanner for UWP

How to download/export data of a C# windows form application in a single excel sheet.

21 Sep 2017 by Member 13297587

One of my C# windows application form has a functionality of downloading the data of entire form in a single excel sheet. The form has few labelboxes at the top which can be accepted as header of the form, in the middle portion of the form there is datagridview which fetches data using a...

How to download/export data of a C# windows form application in a single excel sheet.

21 Sep 2017 by Karthik_Mahalingam

Pick the required data from the Form and add those in the relevant area in the excel sheet. ClosedXML[^] would be the best choice to format the data inside the sheet. refer these ClosedXML Nicely Formatted Header Row – Justin Cooney[^] c# - ClosedXML. Adding DataTable to existing Excel...

Split a string start with lower case

10 Oct 2017 by Member 13454019

Hi all, i am triying to split a string starts with lower letter to end. Example: ABCd;d6523;SiBABC.R;s1;EEcUY i can split these string with ";" after that i have an array like arr[]={"ABDd","d6523","SiBABC.R","s1","EEcUY"} then i want to get value after lower lettters like;...

Split a string start with lower case

10 Oct 2017 by OriginalGriff

Try a regex: (?[^a-z;]+?)(?=[a-z;]|$) string txtLine = "ABCd;d6523;SiBABC.R;s1;EEcUY"; MatchCollection matches = Regex.Matches(txtLine, @"(?[^a-z;]+?)(?=[a-z;]|$)"); foreach (Match m in matches) { Console.WriteLine(m.Value); } Generates:6523 BABC.R...

How to add a reference in ASP.NET MVC ? I am using framework 4.2.5

15 Oct 2017 by kuldeepnageshwar

when i unload the project and load again my problem is solved automatically. by the way thanks once again.

What technologies I will need after add DLL as reference to windows form

18 Oct 2017 by Kornfeld Eliyahu Peter

Entity Framework Databinding with WinForms[^] Entity Framework in Windows forms part 1 sample in C# for Visual Studio 2013[^] Entity Framework in WinForms[^]

entity-framework

What technologies I will need after add DLL as reference to windows form

18 Oct 2017 by F-ES Sitecore

You don't have to do anything, but you have to appreciate the code is expecting to run within a web context, have access to a request\response\session etc, so not all code is going to work. If you have basic data access classes that just use EF then they should work, but you have to make sure...

entity-framework

Wat is wrong with this connectdirect() call?

23 Oct 2017 by MStet

In a C++ Implementation of DirectShow, I have added two graphs the the Graph Manager (response checks removed for simplicity). When I try to connect them using ConnectDirect and I get a "E_POINTER Invalid Pointer as a result". What am I doing wrong? CComPtr...

Wat is wrong with this connectdirect() call?

23 Oct 2017 by KarstenK

COM is weired, but the errors are helping you. Your message means that the input pointer is invalid or not correct for the desired action. Are you sure, that all calls before are OK. I dont like the line hr = pGraph->AddFilter(peconsCX3RDKwithOV5640,"e-con's CX3 RDK with OV5640"); And split...

"Api-ai-javascript" in angular 4 in .NET project, not working

12 Nov 2017 by GauravKrishn

Hi, I am using angular 4 in a .Net project in VS 2015 and the getting the following error message when application loads in the browser : Error: (SystemJS) Unexpected token ) at Object.eval...

How to change/access tabcontrol's width which is in usercontrol in form1?

22 Dec 2017 by Member 13479861

Hiii, I have created a windows form with two panels with width 25:75 ratio. That is 25 ratio is the sidemenu and the other panel is Main menu/screen of app.So i used usercontrol and dragged & dropped it on the Main screen of form when user clicks the respective button on the sidemenu then the...

Save image into folder and database its path from web service asmx file C#

1 Jan 2018 by Member 11602422

i want to save image which send from android and ios app into website folder and its path into database from web service asmx c# how to do this and send json success message when image save into database What I have tried: i want to save image which send from android and ios app into website...