C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
4 answers
Reading big files while file may be still copying into the folder
Hi everybody, We seem to be getting an error on a regular basis at the same time. The error occurs when we try to read the file and when we check properties of that file in the Windows Explorer we can see that there are 2 dates: Creation Date and…
C#
asked 2020-12-07T23:28:47.18+00:00
Naomi
7,361
Reputation points
answered 2020-12-08T16:10:25+00:00
Karen Payne MVP
35,201
Reputation points
0 answers
Why sometimes windows service app can't build dynamic assembly?
I have some server app. This app run, read some files, create C# classes, build this and load assembly. This app can work in two modes - one mode is window desktop application, and other mode - as windows service but core in dll is common. …
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-07T15:14:09.353+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(313.6, 71%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EUG%3C/text%3E%3C/svg%3E)
Łukasz Gabryel
1
Reputation point
commented 2020-12-08T14:35:40.923+00:00
Viorel
112.9K
Reputation points
0 answers
prevent the program from hiding the mouse cursor
I'm working on a touchpad program and i avoided mouse position changes by this code: public partial class MouseHooker { public MouseHooker() { _hookID = SetHook(_proc); } private static readonly LowLevelMouseProc _proc =…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-07T18:10:44.13+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(217.60000000000002, 59%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
MainSilent
1
Reputation point
commented 2020-12-08T10:15:25.673+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(268.8, 45%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
Cheong00
3,471
Reputation points
2 answers
How do I clear a remote session after publishing my C# MVC application from Visual Studio?
So I have my C# MVC application, happy with its design, I publish the application onto external servers (ionos), once I've published I've found if I create a new account or go to log into the application its like the session is still hanging around. As…
ASP.NET Core
ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,239 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
4,696 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-05T21:56:20.873+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(179.20000000000002, 4%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMC%3C/text%3E%3C/svg%3E)
martin cooke
1
Reputation point
commented 2020-12-08T07:04:24.903+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(80, 82%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBZ%3C/text%3E%3C/svg%3E)
Bruce Zhang-MSFT
3,736
Reputation points
2 answers
C#: Send email via SMTP
Hi all, I am attempting to develop a process that sends automated notifications via email. For development, and having a gmail account handy, I followed the instructions in this video: C# SMTP in Action : How to Send Email in C# using Gmail (Aug.…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-07T18:39:47.367+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(83.2, 51%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
Saga
426
Reputation points
answered 2020-12-08T05:47:22.93+00:00
Nitish Kumar
6
Reputation points MVP
2 answers
The required column 'FirstName' was not present in the results of a 'FromSql' operation.
Hello, I have a stored proc that I'd like to return a portion of the fields that are in my model. If I don't return every field in my model, I'm getting "The required column 'FirstName' was not present in the results of a 'FromSql'…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-07T13:43:34.837+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(22.400000000000002, 8%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVP%3C/text%3E%3C/svg%3E)
Venkata Prasad Pinapathruni
1
Reputation point
answered 2020-12-07T15:37:03.743+00:00
Karen Payne MVP
35,201
Reputation points
0 answers
Not able to call C# function for CosmosDb Change feed from power shell
I am able to run the below code, if I run it as a console application, Now my requirement is that InstanceTime, ProcessorName and ChangeInstance is passed as an argument from PowerShell and run this method and get the required changed documents output. I…
Azure Cosmos DB
Azure Cosmos DB
An Azure NoSQL database service for app development.
1,469 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-04T15:50:20.943+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 24%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAK%3C/text%3E%3C/svg%3E)
Ankit Kumar
91
Reputation points
commented 2020-12-07T14:03:41.147+00:00
Ankit Kumar
91
Reputation points
1 answer
Best practice for handling async dispose using lock/semaphore
I have run into an issue where I have a async method that disposes of resources asynchronously. This method needs to be multithreaded as potentially it can be called at the same time depending on circumstances. Using a plain lock won't work because you…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-04T20:19:51.727+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(131.20000000000002, 5%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECS%3C/text%3E%3C/svg%3E)
Chris Stopher
6
Reputation points
commented 2020-12-07T13:26:34.59+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 66%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESI%3C/text%3E%3C/svg%3E)
Slav Ivanyuk
1
Reputation point
1 answer
How to create instance of Win32 COM object?
I have some legacy code that need to port over to C#. There is a COM server object written in C++ that is called by other Win32/MFC apps. I'm trying to see if I can write a C# app and create an instance of the COM object just like the other Win32/MFC…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(265.6, 86%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELA%3C/text%3E%3C/svg%3E)
0 answers
Why does AudioPlaybackConnection keep disconnecting from Bluetooth devices in non-UWP applications?
I've created a test method in C# to connect to Bluetooth devices through the newly introduced AudioPlaybackConnection class in the WinRT API. I see that AudioPlaybackConnection is marked with the DualApiPartition attribute, so it should work in desktop…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
.NET Runtime
.NET Runtime
.NET: Microsoft Technologies based on the .NET software framework.Runtime: An environment required to run apps that aren't compiled to machine language.
1,131 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 87%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBM%3C/text%3E%3C/svg%3E)
3 answers
One of the answers was accepted by the question author.
How to use both sub-classes in C#
Hi All, I want to how to use both subclasses "InterestEarningAccount" and "LineOfCreditAccount" in the same program. TIA sub class InterestEarningAccount using System; namespace Inherit3 { public class InterestEarningAccount :…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
0 answers
[UWP][BLE][C#]How to identify last packet for large data in BLE Write and Notify in Win10
I have a Windows class library that uses UWP BLE APIs. The setup is: BLE Host: Win 10 laptop BLE peripheral: Win 10 laptop or Android I need to send large file (a few K to a few M) to and from peripheral (using Write/WriteWithoutResponse and Notify)…
Universal Windows Platform (UWP)
Universal Windows Platform (UWP)
A Microsoft platform for building and publishing apps for Windows desktop devices.
2,849 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-02T03:31:44.797+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 50%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAY%3C/text%3E%3C/svg%3E)
Angela Yan
1
Reputation point
commented 2020-12-07T03:23:45.48+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 92%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERL%3C/text%3E%3C/svg%3E)
Roy Li - MSFT
32,486
Reputation points Microsoft Vendor
1 answer
C# Platform Invoke ADUser Constructors parameterless
Hi Developers ! I'am a newer of C#,once i want to practice how to Invoke Unmanaged code And i got the Assembly:Microsoft.ActiveDirectory.Management.dll,to practice how to use ADUser Constructors to create an abject whose properties are similar to a…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-06T07:06:38.437+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 62%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECB%3C/text%3E%3C/svg%3E)
cook bada
1
Reputation point
answered 2020-12-07T02:33:40.653+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 7.000000000000001%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDZ%3C/text%3E%3C/svg%3E)
Daniel Zhang-MSFT
9,621
Reputation points
4 answers
Float type in database but the number becomes different after getting to C#
In database, there is a field in "float" type. There is a record with 300.88. (correct value) After getting into DTO ("double" type), it becomes 300.87999988 After passing DTO to textbox in view, it displays 300.88 correctly. …
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 31%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(243.2, 28.999999999999996%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
1 answer
Json Navigation
I am getting a string from a Rest API. The string contains a list of orders. string result = await content.ReadAsStringAsync(); dynamic json = JsonConvert.DeserializeObject(result); string res = json[0]["id"]; MessageBox.Show(…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-06T07:14:13.157+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 24%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMA%3C/text%3E%3C/svg%3E)
Muhammad Ahmed
1
Reputation point
answered 2020-12-06T12:12:54.35+00:00
Karen Payne MVP
35,201
Reputation points
2 answers
One of the answers was accepted by the question author.
how to find double code caracter in string
I need to find the position of the double quotation mark (") character in a text that contains several. I read the text with this command: StreamReader fileRead = File.OpenText (@filepath) How can I do? Thanks in advance Marco Dell'Oca
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-05T13:50:17.777+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 13%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMD%3C/text%3E%3C/svg%3E)
Marco Dell'Oca
41
Reputation points
accepted 2020-12-06T10:00:42.247+00:00
Marco Dell'Oca
41
Reputation points
1 answer
How to avoid multiple duplicate interation from data table in c#
int rowidx = 0; //process for each Main Product list mainproduct = //get data table mainproduct of "prod no" //so mainproduct list is "102201" "102202" "102203" …
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
asked 2020-12-05T02:59:43.29+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 2%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EG%3C/text%3E%3C/svg%3E)
Gani_tpt
1,746
Reputation points
answered 2020-12-06T00:05:58.677+00:00
Bonnie DeWitt
811
Reputation points
1 answer
One of the answers was accepted by the question author.
Check if I have a Internet connection
Hello everybody, I need to check if a internet connection exists because the little program i wrote download a file from a server. I found a example but this isn't working?! bool checkInternet = new Ping().Send("google.com", 500).Status…
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
1 answer
One of the answers was accepted by the question author.
Write a String to a .txt File
Hey everyone, Can anybody tell me why my code isn't working? I try to write a string to a .txt File. System.IO.File.WriteAllText(confirmation);
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions
2 answers
One of the answers was accepted by the question author.
if in switch
Hello anybody, Is it possible to use a if in a switch? switch (eingabe) { //Path check/create if(!System.IO.Directory.Exists($@"{localappdata}\Liquid Aqua\API")) …
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,381 questions