csharp

A powerful and flexible formula evaluation engine using Roslyn Scripting with dynamic runtime context. Ideal for scenarios where business logic needs to be defined at runtime through C# expressions or formulas. 🚀 Features Evaluate C# expressions dynamically at runtime Support for nested...

In today’s digital era, facial emotion recognition has emerged as a crucial tool across various fields, from marketing and customer service to security and surveillance so the AI.Facial.Emotion – a lightweight and powerful .NET library that can analyze facial emotions in real-time. Whether...

Hello everyone, I have many "void" functions with parameters in my MainWindow.xaml.cs, which I want to split into several files, depending on their functionality. Do I use "classes" or only "partial classes" of MainWindow for this? Or should I subdivide my MainWindow.xaml.cs with comments? I...

Good evening everyone, I am totally desperate about creating a dynamic xaml window (Quizz App). I have already read a lot about this topic, but could not apply it to my project. Could you explain to me (again) how I can make the font size and corner radius of buttons adapt to the size of the...

Hi I have made this app in blazor: Index Occasionally, I encounter this error: "Attempting to connect to the server." Do you know how to solve it? regards, Saeed

Hello, I managed to install in my VS the MudBlazor Template (updated to .Net 8) for creating projects with MudBlazor already setup, and it works fine. Then I installed the NuGet Packages Microsoft.EntityFrameworkCore version 8.0.6, the *.SqlServer, and the *.Tools. When I wrote the classic...

Greetings, I am in a need to extend a class to add few new methods/properties that base class lacks. so, i have created a class that extend another class. but issue arises when i need to covert/cast base class to derived class. it doesn't works. so? is i am doing it wrong, or it's not...

Greetings, i have tried to convert a js code to c#.. here is the js code: var...

Greetings, I am trying to using a Delphi dll in c# program.. here is the Delphi library code: library UnicodeToBijoy; uses System.SysUtils, System.Classes, BanglaChars in 'BanglaChars.pas', clsUnicodeToBijoy2000 in 'clsUnicodeToBijoy2000.pas'; {$R *.res} var baseClass ...

Hello, I am getting the following error Argument 1: cannot convert from 'byte[]' to 'string[]' and the code causing that error is Process.Start(Properties.Resources.telephone); Any and all help to resolve this issue will be much appreciated

I am facing a weird issue, i need to load GIF image/picture from memory to picture box. It's works fine for non GIF picture, but for GIF it throws GDI error. A generic error occurred in GDI+. here is my test codes to show you the error public partial class Form1 : Form {...

Hi guys I have used a Yandex mail account in my project to send mail. I have taken an error for 10 days. The error message is "554 Error: send AUTH command first. 17082980431EZcQL1n9Gk0TJtvpGYN". Why do I take this message although I didn't make any changes in my code? Thanks...

Hi, I have a code which in windows 10 works properly but in windows 7 ,I recieve the error : An error occurred while sending the request. System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel. at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult...

I work on asp.net MVC application I face issue check box yes or no send false value yes or no when click approve button I have two check box one represent true and second false as user requested and i don't it to be radio button because bossiness user request it . Yes represent true No...

I am new to asp.net core. I have a form which is generated dynamically. I want the validation error message to be "The value must be numeric" instead I get "The value 'a' is invalid" when I submit the form. Here is my View Model: [RegularExpression("^[0-9]*$", ErrorMessage = "The value must...

Hi there. I have this code to my chart, using C# WinForms: chart1.Series[0].IsVisibleInLegend = false; chart1.Series[0].ChartType = SeriesChartType.Line; chart1.Series[0].Points.DataBindXY(Enumerable.Range(0, 5000).ToArray(), array1); The result is below: I'd like to set the X legend to...

I keep getting "Insufficient parameters supplied to the command" exception when running the code below. I have tried several versions of code with the same result. Searching on line has given me hundreds of examples of this exception, but they have all been simply typos or they used another of...

I work on an ASP.NET MVC razor page. I face issue Url change from Resignation/RequesterIndex?filenumber=103085 to Resignation/Create after click submit button. I need URL as it was before, without change after click submit button. How to do that please? What is issue on my code that make...

I have a text file that is generated daily and can contain several lines with 15 numbers drawn from 01 to 25 in each line, the text can have one line or several lines, it changes every day. I need to compare with an array 'Result' and count how many numbers in each line are equal to the numbers...

I work on some ui web tool on asp.net core blazor i need to write csharp function convert this conditions to sql statement so when i filter two columns as databasename and remarks (databaseName == null ? "" : databaseName).ToLower().Contains("db_".ToLower()) and (remarks == null ? "" ...