Set web.config transform in Asp.NET Core

Question

I\'ve just came across with problem of web.config transformation in asp.net core.

There are two files: base web.config and web.prod-zone-a.config. My aim is to use t

Answer 1

may be i don't clear question. For mine case web.config override all settings in web.Release.config file.

Fix for me, i just add reference for transformation xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform" to configuration file.

so, .config file should start:

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">

After some time, the best solutions is using dotnet-transform-xdt tool

Answer 2

With the latest version of dotnet cli (2.1.400 or greater), you can just set this msbuild property $(EnvironmentName) and publish tooling will take care of adding ASPNETCORE_ENVIRONMENT environmentVariable to the web.config with the specified environment name.

Also, XDT support is available starting 2.2.100-preview1.

Sample: https://github.com/vijayrkn/webconfigtransform/blob/master/README.md