c# - AspNetCore set content root path

Question

How can I change Content root path on app .Net Core 3.0 ASP Blazor start? Now app starts with output

info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
      User profile is available. Using 'C:\Users\Art\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
!!! C:\Program Files\WindowsApps\6c2bb0ad-5956-4886-9e3f-2135ebe50d2f_1.0.8.0_x64__n37t8n8dtxdg6\TUTDF_Viewer_v2\
info: Microsoft.Hosting.Lifetime[0]
      Now listening on: http://localhost:5000
info: Microsoft.Hosting.Lifetime[0]
      Now listening on: https://localhost:5001
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\Windows\system32

I need to change Content root path from C:\Windows\system32 to another path on app initialization.

How to change Content root path on AspNetCore app start?

Arthur · Accepted Answer · 2019-11-25 14:36:12Z

4

The most correct way is to change Program.cs of the project - to add

var p = System.Reflection.Assembly.GetEntryAssembly().Location;
                    p = p.Substring(0, p.LastIndexOf(@"\") + 1);
webBuilder.UseContentRoot(p);

in CreateHostBuilder.

Full example:

public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    var p = System.Reflection.Assembly.GetEntryAssembly().Location;
                    p = p.Substring(0, p.LastIndexOf(@"\") + 1);

                    webBuilder.UseContentRoot(p);
                    webBuilder.UseStartup<Startup>();
                });

answered Nov 25, 2019 at 14:36

Arthur

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1 Comment

Jan Over a year ago

Doesn't seem to work for an ASP.NET Core MVC v3.1 project. The solution for us was just to change current directory to the webapp directory and start the .dll from there with dotnet

Gerrit · Accepted Answer · 2019-11-25 14:34:10Z

1

Please use below code

    public static async Task Main(string[] args)
    {
        string pathToContentRoot = string.Empty;

        var pathToExe = Process.GetCurrentProcess().MainModule.FileName;
        pathToContentRoot = Path.GetDirectoryName(pathToExe);
        Directory.SetCurrentDirectory(pathToContentRoot);
    }

edited Nov 25, 2019 at 14:34

Gerrit

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answered Nov 25, 2019 at 14:03

Aneesh

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Comments

user2410689 · Accepted Answer · 2021-07-01 09:48:52Z

0

Directory.SetCurrentDirectory only works for loading razor content and config.

If you have static files (UseStaticFiles) as middleware active, you must have somewhere this too.

           env.ContentRootPath = pathToContentRoot;

answered Jul 1, 2021 at 9:48

user2410689

Comments

powdercoder · Accepted Answer · 2023-03-14 06:22:56Z

0

on ASP7 we inserted following code to make it work into program.cs

WebApplicationOptions options = new WebApplicationOptions {
    ContentRootPath = "/var/www/yourpath"
};
var builder = WebApplication.CreateBuilder(options);

answered Mar 14, 2023 at 6:22

powdercoder

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