Dive into Code

public static string IsActive(this IHtmlHelper html,
                                  string control,
                                  string action, string Path)
        {
            string url_link = "/" + control + "/" + action;
            if (action.ToLower() == "index")
            {
                url_link = "/" + control;
            }

            if (url_link == Path)
            {
                return "active";
            }
            return "";
        }


usage  inside html 

                            <a class='nav-link @Html.IsActive("controller" , "method", Context.Request.Path)'  asp-controller="cms" asp-action="index">
                              Dashboard <span class="sr-only">(current)</span>
                            </a>

sfc /scannow
DISM.exe /Online /Cleanup-image /Scanhealth
DISM.exe /Online /Cleanup-image /Restorehealth
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
shutdown /r

public async Task AddFile(Object, IFormFile File)
        {
            if (File != null && File.Length > 0)
            {
                var guid = Guid.NewGuid().ToString();
                guid = guid.Substring(guid.Length - 4);
                string filename = Path.GetFileNameWithoutExtension(File.FileName) + "__" + guid;
                var extension = Path.GetExtension(File.FileName).ToLower();
                var name = $"{filename}{extension}";
                var filePath = Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot\folder", name);

                // Create new local file and copy contents of uploaded file
                //using (var localFile = System.IO.File.OpenWrite(filePath))
                using (var uploadedFile = new FileStream(filePath, FileMode.Create))
                {
                    await File.CopyToAsync(uploadedFile);
                }
                object.Filepath = name;
            }
        }

Scaffold-DbContext "Server=(localdb)\mssqllocaldb;Database=dbname;Trusted_Connection=True;MultipleActiveResultSets=true" Microsoft.EntityFrameworkCore.SqlServer -OutputDir DirName -DataAnnotations

CREATE TABLE Banners (
    Id int IDENTITY(1,1) not null,
    [Order] int not null default 0,
    Location int not null,
    CreatedAt datetime not null DEFAULT GETDATE(),
    UpdatedAt datetime not null DEFAULT GETDATE(),
    Published bit not null default 0,
    Deleted bit not null default 0,
    BannerImagePath nvarchar(max) NULL,
    BannerCode nvarchar(max) NULL,
    CONSTRAINT PK_Banners_Id PRIMARY KEY CLUSTERED (Id),
);


CREATE TABLE BannersStatistics (
    Id int IDENTITY(1,1) not null,
    SessionId nvarchar(max) null,
    BannersId int not null,
    CreatedAt datetime not null DEFAULT GETDATE(),
    CONSTRAINT PK_Banners_Id PRIMARY KEY CLUSTERED (Id),
    CONSTRAINT FK_BannersStatistics_BannersId FOREIGN KEY (BannersId) REFERENCES  Banners(Id),
);