C# 7.0

.NET4.6

.NET

ASP.NET Core WebAPI secured using OAuth2 Client Credentials

11 Jun 2017 by Livio Francescucci

Use a JWTToken to access a .NET Core Web API leveraging IdentityServer4 / OAuth2.

Invisible Ink

24 Aug 2017 by Daniel Vaughan

Using steganography to conceal text within a document or watermark a code file, using a whitespace encoder. Hide text in plain sight!

Serverless - DevOps Little Helper

29 Apr 2019 by Florian Rappl

Why not use serverless computing to perform maintenance tasks in Azure DevOps?

General Purpose MultiSlider

26 May 2017 by John Trinder

Comprehensive Multi-Slider(-Range) that can add, delete and move arrows (thumbs)

Mission Impossible: Migrating .NET Core 1.x to 2.0

19 Aug 2017 by Afzaal Ahmad Zeeshan

.NET Core 2.0 brings a lot of improvements to the system, and it brings a lot of pain to the developers as well. I had a lot of problems upgrading .NET Core 1.x apps to .NET Core 2.0; I yet have to feel the promise it makes about performance and so, but let us see how to upgrade our existing applica

Benchmarking .NET Core SIMD Performance vs. Intel ISPC

11 Jan 2018 by Allister Beharry

.NET SIMD programs using the Vector types show performance comparable to Intel ISPC and open source C++ SIMD libraries while satisfying the same goal of SIMD developer productivity in a high-level language.

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.

C# 7.0 – Tuples Re-Engineered

23 Apr 2017 by Kamran Bilgrami

C# 7.0 – Tuples Re-Engineered

Tuples in .NET World and C# 7.0 Improvements

28 Sep 2017 by Nikola M. Živković

Tuples in .NET World and C# 7 improvements

.NET

WPF Behavior to Give Buttons the Capability to Add, Remove and Reorder Contents of a ListBox

3 Mar 2019 by Clifford Nelson

This tip presents a behavior that will allow buttons to control the items in a WPF Selector (or ListBox) control.

C# 7 ref returns and locals

15 Dec 2019 by Shao Voon Wong

Easier direct memory access in a safe way

Contextual Data Explorer

1 Mar 2018 by Marc Clifton

One approach to creating the bidirectional relationship between context and data -- a declarative strongly typed relational contextual system using C#

Entity Framework DAL with Generic Seeding from JSON, Using Reflection

6 Mar 2017 by Michael Doleman

A simple DAL with an integrated, lightweight model for database seeding from a JSON source, using the code-first method in Entity Framework.

Hello World Angular 2+ Data Sample Using JavaScriptServices .Net Core and PrimeNG

13 Mar 2017 by defwebserver

You can create database driven .Net Core applications using JavaScriptServices, and PrimeNG.

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

WPF Behavior to Set Control Value to DefaultValue on Visibility Changed

2 May 2018 by Clifford Nelson

The tip provides a behavior that will set a control to a default value when the Visibility changes

Getting Started with Machine Learning DotNet for Clustering Model

31 Oct 2018 by syed shanu

In this article, we will see how to work on Clustering model for predicting the Mobile used by model, Sex, before 2010 and After 2010 using the Clustering model with ML.NET.

Creating a Settings Screen for UWP with Codon

29 Mar 2019 by Daniel Vaughan

Create a dynamic settings screen for your UWP app. Add a setting with a single line of code.

C# 7 Feature Proposal: Slicing

9 Feb 2016 by Bill Wagner

Continuing my discussion on proposed C# 7 features, let’s take a brief look at Slices.

How to save bytearray to PDF?

16 May 2017 by Jochen Arndt

You have to know the type of data being passed. Without that information you can't do anything useful. If you know that the data represents some kind of file type you can try to detect the type. With Linux there is the file command that uses the magic(5): file command's magic pattern file -...

bytes

PDF

Invalid column name 'userid'

23 Aug 2017 by OriginalGriff

You added it to the class, but you don't appear to have a matching column in your database. As a result, SQL cannot handle any requests you make to that column. Add the column to the DB...

How to redirect to another C# page in ASP.NET

25 Sep 2017 by Vaidhya.P

The redirection will be based on the project structure you are using. NORMAL ASP.NET If you are not using any area's concepts then just Response.Redirect("Yourpage.aspx") MVC - WITH AREAS Concept MVC - WITH...

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

Longest repeating subsequence using only LINQ

6 Mar 2018 by Maciej Los

Member 13711733[^] wrote: LongestRepetition(new [] {1, 2, 1, 2, 1, 2, 3, 2, 1, 2}) should return new [] {1, 2, 1, 2}. Why? It should logically return new [] {1, 2, 1, 2, 1, 2}, because it's a longest repetition. Check this generic linq solution: public static T[] GetLongestRepetition(T[]...

LINQ

Explode a pattern in C#

13 Mar 2018 by Richard Deeming

There's probably a more efficient solution, but this works with the input provided: static string ExplodeString(string value) { // Matches a repeated block which does not have a nested repeated block: Regex pattern = new Regex(@"(?\d+)$(?[^()]+)$",...

Async Commands with Codon FX

1 Apr 2018 by Daniel Vaughan

Learn how to leverage the asynchronous ICommand implementation in Codon FX to support commands that kick-off long-running operations.

C# -> move all excel files from folder a to B ...

20 Dec 2018 by Richard Deeming

File.Move will only move a single file; it doesn't know how to process wildcards. You need to list the files you want to move, and move them individually: string sourcePath = @"C:\Users\Chris\Desktop\"; string destinationPath = @"C:\Users\Chris\Documents\Excel\"; foreach (string sourceFile in...

Why will this simple code not work in C#

30 Aug 2019 by OriginalGriff

Quotes won't help you at all: in C# the quote character delimits single character literal values: 'a', 'B', '1' Putting them round a line of code won't help. So try something like this: string path = @"D:\Test Data\MyFile.txt"; string allTheText = File.ReadAllText(path); The '@' in front of the...

How do I assign value from result set returned from insert strore procedure to .NET object?

30 Dec 2019 by OriginalGriff

Don't use ExecuteNonQuery - it doesn't return a result set at all, it returns a single integer. Instead, use an SqlDataAdapter and a DataSet to return the two result sets as separate tables. using (SqlConnection con = new SqlConnection(strConnect)) { ...

ADO.NET

Lastbootuptime is incorrect

30 Dec 2022 by OriginalGriff

The last boot time is probably correct - it's just your idea of what you do with your computer that differs from Windows. With Win 10 / 11 (and maybe earlier, I'm not sure) "shutdown" and "restart" don't do what the name implies, not really -...

When execute multi query on same time using threading get error 40 ?

6 Sep 2023 by OriginalGriff

Dear Help Vampire: 30 seconds with Google will have told you what the error number means - it did me in less than ten. And then you would have realized that it's not a problem we could even begin to help you with, since it's related to...

.NET

Check if text exist in my database C#

8 May 2017 by CHill60

I would use ExecuteScalar to be more efficient... like this:private void btnNext_Click(object sender, EventArgs e) { if (comboBox1.SelectedIndex == -1) return; using (var conn = new SqlConnection(connstring)) { conn.Open(); var cmd = new SqlCommand { ...

How to get desktop backgroundcolor prgrammatically in C#

9 May 2017 by OriginalGriff

Simple: Color c = Color.FromKnownColor(KnownColor.Desktop); And return it.

Is it possible to get file name from byte array?

16 May 2017 by OriginalGriff

If you have tried methods from a different site, the most sensible thing to do would be to ask a question of the person who wrote the code, not a different site completely. The second most sensible thing would be to show the code you tried - as you tried it - by copy'n'pasting it into your...

bytes

How I can write linq query

19 May 2017 by Maciej Los

Depending on situation... I've tested below queries on that list: List lstA = new List { new A(){ ID = 1, lstB = new List() { new B(){ID = 1, Name="A", Path="C"}, new B(){ID = 2, Name="A", Path="D"}, new B(){ID = 3, Name="B", Path="E"}, new B(){ID...

LINQ

How to reduce the burden on the server while loading the dashboard

31 May 2017 by AnvilRanger

You are loading over 2.2 millions rows of data from an XML file. I can just imagine the size of those XML files. Let alone loading them into memory and rendering the UI. Like F-ES said think about how a user will look at and use this data. The human eye and mind can only process so much data at...

Which ASP.NET MVC template to use?

6 Jun 2017 by Kornfeld Eliyahu Peter

At end of the day ASP.NET MVC will not work properly without those folders (Model, View, Controller)... So even you pick the empty template you will need them, and that means, that you have two choices - add those folders to the empty project, or clean the full project... What to pick? It depend...

How to save user settings without close application

20 Jun 2017 by Patrice T

Try private void save_Click(object sender, EventArgs e) { Properties.Settings.Default.Source = textBox1.Text; Properties.Settings.Default.Save(); Application.Exit(); }

Remove duplicates object in a list

27 Aug 2017 by OriginalGriff

The way I'd do it is to use Distinct with a comparer: public class MyClass { public string Name { get; set; } public string Other { get; set; } public MyClass(string a, string b) { Name = a; Other = b; ...

How do I get checked items in checkedlistbox with re-order in windows C#?

24 Sep 2017 by Richard MacCutchan

Possible? Maybe: see ListBox Class (System.Windows.Controls)[^].

controls

How to redirect to another C# page in ASP.NET

25 Sep 2017 by F-ES Sitecore

List Leave the "Controller" suffix off the controller name, so if the class is called HomeController you use just "Home" as the controller name.

I have a number with 15 digit after floating point and I need to extract 15th digit and use it. How a con do that in C#

29 Sep 2017 by OriginalGriff

That's not going to be easy - a double in C# only has 15~16 digit precision: double (C# Reference) | Microsoft Docs[^] so the normal "multiply and remove teh integer part is not goign to work. In fact, it quite likely that the "15th digit after the float point" is not stored at all - bear in...

Display two column in a dropdown list

25 Oct 2017 by Sheila Pontes

Hi, To display the two data from the datatable columns in your dropdownlist, I suggest that you format the data before bind it. Use linq for this. This is the easiest way. Here is an example of this suggestion. HTML

Show image from gridview to imagebox

3 Nov 2017 by Karthik_Mahalingam

try protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "Select") // name of the command { var index = Convert.ToInt32(e.CommandArgument); var row = GridView1.Rows[index]; ...

I want to learn about C# but do not want to enter my brain.

18 Dec 2017 by OriginalGriff

We can't help you - we aren't a tutorial service and we can't "explain C#7" in a small text box: there are whole books devoted to it, and big ones. And that is the resolution to your problem: get a book (or better go on a course) instead of watching YouTube videos, which are mostly made by...

Why doesn't this switch return a value?

14 Jan 2018 by David_Wimbley

So first thing, in your RBOleDb class, your DbType, DbDataSource, DbPath, and DbProvider all lack a setter in the property so i'm not sure how your code even compiles so you'll need to change those from public string DbType { get; } to public string DbType { get; set; }. Next thing I see, you...

Make my code more clean working with methods in C#

18 Mar 2018 by OriginalGriff

First off, don't use Convert methods: users mistype the input all the time, and the Convert methods will make you app crash if they do that. Use the double.TryParse methods instead. In fact, that's a good intro to using a method. At the moment, you do the same thing a number of times: ...

Visual-Studio

Looking for help converting Fortran to C#

2 Jul 2018 by OriginalGriff

Don't translate them: they are very different languages and you will not end up with good quality code in C#. What you are trying to do is translate Shakespeare's plays to Korean using Google translate to look up each word: To be or not to be, that is the question 에 있다 또는 아니 에 있다 그 ~이다. 그만큼 문제...

FORTAN

How do I create a variable of type string with the name of whats written on the textbox

23 Aug 2018 by Dave Kreskowiak

You don't. In simple terms, variable names only exist until compile-time. If you want a "variable" to hold a value, you would normally keep such things in a Dictionary collection. It's not a true variable in the sense you're talking about, but the name entered becomes a "key" in the collection,...

Visual-Studio

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.

Static property issue

21 Sep 2018 by OriginalGriff

f is static: there is one of it for the whole application. Because both B and C are derived from A, they share the same static variable: the last value to you set it to will be the global value it has, regardless of whether you set it via an instance of B or C So which ever instance you create...

Can I have the code for this problem in C++?

19 Oct 2018 by David O'Neil

int main() { play(paper); play(something); play(scissors); play(paper); return 0; } Hope this helps get you started Or maybe it will make you mad enough to try on your own, and show this a***hole (being me) what a jerk I am by succeeding. Or at least...

Multiple files from 2 or more file upload controls

2 Nov 2018 by Richard Deeming

Use HttpFileCollectionBase.GetMultiple[^] to retrieve the list of posted files for each input: IList additionalDocs = Request.Files.GetMultiple("AdditionalDocs"); IList budgetDocs = Request.Files.GetMultiple("BudgetDocs"); IList...

How use pointer in C# like C++

7 Nov 2018 by Afzaal Ahmad Zeeshan

If you want to use C# because, then you have to leave all that pointer luxury with the C++. The core concept of C# was to enable you to have a managed environment, where you only had to write the business logic instead of having to manage the low-level memory and hardware as well. C# itself is...

Handle left over bytes when copying in multiples of 8x bytes?

23 Dec 2018 by Richard MacCutchan

The logic is fairly straightforward: byteArray = // input data numberOfBytes = // length of input data blockSize = 8 offset = 0 WHILE numberOfBytes > 0 DO copybytes(byteArray[offset], destinationAddress, blocksize) // copy a block offset += blockSize ...

Visual-Studio

How to create TCP viewer on label?

30 Dec 2018 by RickZeeland

In C# you can use System.Net.NetworkInformation, see example here: Using ping in c# - Stack Overflow[^]

C++14

What do I do to make a exe to run simultaneously at the same time?

21 Feb 2019 by Dave Kreskowiak

Your problem description isn't clear at all. In Task Scheduler, you can schedule as many tasks as you want and they can be executed at the same time. You just set the time in the task when you want it to execute. There's nothing that says you can only have one task running at a time. In your...

Not able to post from MVC controller to web api

22 Feb 2019 by Afzaal Ahmad Zeeshan

Your question itself has the answer, your task has not yet been evaluated—Result = "{Not yet computed}. You need to give it more time, and check the result later. This time won't be known to you, since it is undefined amount of time. That is because in the synchronous code you need to wait for...

MVC5

WebAPI2

Is it possible to add an image or attachment to my question

4 Mar 2019 by OriginalGriff

No, because we have a number of members who would think it funny to post extremely inappropriate images. And that means every image post would have to be individually moderated before they were posted and we really don't have enough volunteers to do that with nearly fourteen million potential...

Accepting Partial Resources with Newtonsoft.Json

27 Mar 2019 by Florian Rappl, Manuel Römer

Supporting partial PUT (or PATCH) operations in ASP.NET Core with Newtonsoft.Json

Prevent WPF DataGrid Auto-scrolling Due to Clicking in a Wide Column

24 Aug 2019 by Charles Jenkins

In full-row selection mode, the WPF DataGrid wants to scroll horizontally when a user clicks on a cell which extends offscreen. This sample project shows one way to prevent it.

Windows

WPF

Trying to add XML attribute overrides for an array of derived classes

27 Aug 2019 by Richard Deeming

The problem seems to be that you don't have a wrapping element, so the array attributes are ignored. If you had: then your code would work. Without the wrapping element, it looks like...

How do I immediately return a result from a task

1 Oct 2019 by Richard Deeming

Simple - just remove the async keyword: protected virtual Task MyFunction() { return Task.FromResult(string.Empty); } If your task completes synchronously most of the time, you might want to consider using ValueTask instead. Understanding the Whys, Whats, and Whens of ValueTask |...

Task

syntax

Collect links from websearch

28 Nov 2019 by Maciej Los

At the first look, i see 3 errors: 1. //missing [s] in url addresss string urlAddressofW = "https://google.com/search?q=" + ADDING; 2. //Google replaces spaces [" "] with [+] ADDING = PureTexttitle.Replace(" ", "+"); 3. //missing [W] in receiveStream if (responseW.StatusCode ==...

When rebuilding of project is required in the C# projects

2 Dec 2019 by Ashutosh Gpt

it is also depends on how you have set the output directory of each project. if A is depends on B and C, modifying just member/ properties etc does not required to rebuild the project A. you can just build B and C. if C & B has interfaces which was used in project A that also just required to...

I need an explanation for a code from Microsoft documetion ?

16 Dec 2019 by OriginalGriff

That's trivial code: Open a file Get a file name Remove the extension. Create and open the new file Open the ZIP archive you started with Extract the file. If you can't work that out, you are punching way above your weight, and need to go back to your tutorials and learn C# properly.

How to solve the input string was not in the correct format. / Como resolver a sequência de entrada não estava no formato correto.

17 Feb 2020 by OriginalGriff

You can't "solve" an in put string format problem: it says what it means: the user typed a value that cannot be interpreted as a valid double You can prevent you app from crashing though: double R; while (true) { Console.Write("Please...

C # how to prevent special characters

8 Apr 2020 by OriginalGriff

Try: private const string NotAllowed = @">

Windows

forms

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 -...

Filter Pattern with Generic Lambda Expression on WPF Data Driven Application

28 Jul 2020 by Mirambek Nagashbekov

Demonstration of filter pattern along with pipeline on data driven application

What is C# equivalent of cdocument/cview class in visual C++

18 Aug 2020 by Sandeep Mewara

AFAIK / understand, Quote from Heading 1[^] : Decoupling presentation logic from application logic is the basic motive behind the Document-View architecture used by MFC applications. For example, assume we use the App Wizard to create an...

I need function in C# to removeat and function to add element to array in C# without using built in function

C++

How do I find the individual score for the given problem in C#

7 May 2021 by Richard MacCutchan

Your code can be simplified to the following: using System.IO; using System; using System.Collections.Generic; using System.Linq; class Program { static void Main() { Dictionary players = new...

23 Dec 2021 by OriginalGriff

Quote: Please I want to Learn How to Create Function To RemoveAt element from Array Without Using built-in Function The array in C# is not a "resizable" object - to genuinely add or remove an item you need to create a new array and fill it with...

C#4.0

How do I save colortheme of material design in a text file for saving color theme chosen in C# WPF?

Change the value of a textbox in a report viewer from code VB.NET

17 Jan 2022 by Richard Deeming

If you want to set the header via code, the simplest option is to add another parameter, pass the required title in that parameter, and set the text box's text to that parameter. Otherwise, you could use an expression for the text box parameter,...

19 Nov 2022 by Graeme_Grant

Why not serialize to JSON and write as text, then you can read the text and deserialize it to an object. UPDATE Simple example... sample class to be stored and retrieved: public class Theme { public string ForeColor { get; set; } ...

How to customize the livechart in C# WPF ?

17 Dec 2022 by Graeme_Grant

LiveCharts - LiveCharts2[^] is very simple to use. The documentation is very good with code samples given. From their documentation, ref: samples.bars.withBackground - LiveCharts2[^] 1. ViewModel using CommunityToolkit.Mvvm.ComponentModel;...

Value of employee name not display based on employee id autocomplete?

23 Aug 2023 by OriginalGriff

Never concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Always use Parameterized queries instead. When you concatenate strings, you cause...

MVC6

ASP.NET4

Format of the initialization string does not conform to specification starting at index 70

27 Nov 2023 by Graeme_Grant

Looks like a copy & paste error. Change: "ConnectionStrings": { "MovieContext": "Server=(localdb)\\mssqllocaldb;Database=Movies;Trusted_Connection=True;MultipleActiveResultSets=true\"" } to: "ConnectionStrings": { "MovieContext":...

Scaffold in EF... Issues with the server

29 Nov 2023 by Richard Deeming

Quote: The sceffold command now looks like this. Scaffold-DbContext -Provider Microsoft.EntityFrameworkCore.SqlServer -Force -OutputDir Model -Connection "Data Source=MSIBeast\SQLEXPRESS";Initial...

System.nullreferenceexception in repository pattern

18 Dec 2023 by M Imran Ansari

As the error message, the issue is in Delete method. The Delete method attempts to remove an entity from the context using LapShopContext.Set().Remove(entity). However, the error you're encountering is a NullReferenceException, which suggests...

How do I call my own implementations of interface members?

9 Feb 2024 by Graeme_Grant

Here is your problem: T.TryConvertFromChecked(toUnit.CompoundFactor, out var toCompoundFactor) This calls the TryConvertFromChecked in the readonly struct Double. Here is the method: static bool...

Ihave three table main for information other for coding ishow it with select but in updating I have problem

5 May 2017 by CHill60

Use a parameterized query such as this (untested): var cmd = new SqlCommand(); cmd.CommandText = "UPDATE input_tb SET place_no=@place,price=@price,curr=@curr,E_date=@E_date,m_type=@m_type,matter_q=@matter_q,unit1=@unit1',Worker=@Worker,f_note=@f_note FROM input_tb INNER JOIN Place_tb ON...

SQL

Google

Incorrect syntax near the keyword 'ORDER'

8 May 2017 by Patrice T

Use a debugger and look at cmd to see what is your real query. Never build an SQL query by concatenating with user inputs, it is named "SQL injection", it is dangerous for your database and error prone. A single quote in a name and your program crash. If a user input like "Brian O'Conner" can...

Error during iterates list iin C#

14 May 2017 by pradiprenushe

You are returning single Alumno entity to view Alumno p1 = new Alumno(); return View(p1); And using as list in view. First clear your requirement. Are you really want to show list on view if not then dont use list in view. Two option 1. Either remove list from view 2. Pass list of alumno...

MVC4

Razor

How I integrate finger print device wit my project using PHP , or other sources?

15 May 2017 by OriginalGriff

Start by finding an appropriate fingerprint scanning device, and talk the the manufacturers, or browse their website - we have no idea what device you will be using, or what you are supposed to be doing with it. Research, planning, specification, and design are all parts of you project: so you...

PHP

fingerprint

Regular expression syntax - REGEX

15 May 2017 by OriginalGriff

Am tried this one ^[\w]{1}$ But its allowed only one character. more than one character failed. That's because that is exactly what you told it to do: {1} means "exactly one of" - and is redundant, as is most of that Regex, which reduces to: ^\w$ If you want one or more, then try ^\w+$ If...

regular-expression

Directoryinfo from URL

16 May 2017 by ZurdoDev

No, it is not possible because servers do not expose their file structure. There used to be a setting (and may still be) in IIS to allow listing of directory contents but it is not on by default for security settings.

WebForms

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...

Javascript

.NET4.6

How to convert the byte[] response to a list or dictionary or object?

16 May 2017 by Kornfeld Eliyahu Peter

These parts of redist are not documented as far as I know... However here how you can parse it... First notice that the data is separated by classic C carriage-return+newline (\r\n)... So you should interpret it line by line... Lines beginning with * (asterisk) are counters... So the first line...

Redis

I have a encrypt password method need decrypt passwordmethod in c#..

17 May 2017 by David_Wimbley

You are "encrypting" (really hashing) your passwords using MD5. Because it is being hashed you can't/don't decrypt it, you merely compare your hashes to decide if the user is authenticated or not. If you are wanting to decrypt the password as a easy way to remedy "i forgot my password" you are...

I have a encrypt password method need decrypt passwordmethod in c#..

17 May 2017 by Patrice T

Quote: i have a Encrypt Password method need decrypt password method in c# There is no decryption possibility because MD5 is not encryption, it is hashing. Hashing is a one way process and can't be reversed. MD5 - Wikipedia[^] Hash function - Wikipedia[^]