.NET C# no way to enable different .NET sdk's on .netcore projects!

modules/vstudio/_preload.lua

@@ -608,6 +608,35 @@
 		tokens = "true",
 	}
 
+	p.api.register {
+		name = "dotnetsdk",
+		scope = "project",
+		kind = "string",
+		allowed = {
+			"Default",
+			"Web",
+			"Razor",
+			"Worker",
+			"Blazor",
+			"WindowsDesktop",
+			"MSTest",
+			function (value)
+				-- value is expected to be in the format <sdk>/<version>
+				local parts = value:explode("/", true, 1)
+				local sdk = parts[1] or value
+
+
+				if parts and #parts == 2 then
+					if p.api.checkValue(p.field.get("dotnetsdk"), parts[1],"string") then
+						return value
+					end
+				end
+
+				return nil
+			end,
+		}
+	}
+
 --
 -- Decide when the full module should be loaded.
 --

modules/vstudio/tests/_tests.lua

@@ -15,6 +15,7 @@ return {
 	"cs2005/test_debug_props.lua",
 	"cs2005/test_debug_props_2019.lua",
 	"cs2005/test_documentation_file.lua",
+	"cs2005/test_dotnetsdk.lua",
 	"cs2005/test_files.lua",
 	"cs2005/test_icon.lua",
 	"cs2005/test_netcore.lua",

modules/vstudio/tests/cs2005/test_dotnetsdk.lua

@@ -0,0 +1,182 @@
+--
+-- tests/actions/vstudio/cs2005/test_dotnetsdk.lua
+-- Test DotnetSDK feature Visual Studio 2005+ C# project.
+-- Copyright (c) 2012-2024 Jason Perkins and the Premake project
+--
+	local p = premake
+	local suite = test.declare("vstudio_cs2005_dotnetsdk")
+	local dn2005 = p.vstudio.dotnetbase
+--
+-- Setup
+--
+
+	local wks, prj
+
+--
+-- Setup and teardown
+--
+	function suite.setup()
+		p.action.set("vs2010")
+		wks = test.createWorkspace()
+	 	configurations { "Debug", "Release" }
+		language "C#"
+		dotnetframework "net8.0"
+	end
+
+	local function setConfig()
+		local cfg = test.getconfig(prj, "Debug")
+		dn2005.projectElement(cfg);
+	end
+
+	local function prepare()
+		prj = test.getproject(wks, 1)
+	end
+
+	function suite.testNone()
+		prepare()
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk">
+	]]
+	end
+
+	function suite.testDefault()
+		prepare()
+		setConfig()
+		dotnetsdk "Default"
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk">
+	]]
+	end
+
+	function suite.testWeb()
+		prepare()
+		dotnetsdk "Web"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Web">
+		]]
+	end
+
+	function suite.testRazor()
+		prepare()
+		dotnetsdk "Razor"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Razor">
+		]]
+	end
+
+	function suite.testWorker()
+		prepare()
+		dotnetsdk "Worker"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Worker">
+		]]
+	end
+
+	function suite.testBlazor()
+		prepare()
+		dotnetsdk "Blazor"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
+		]]
+	end
+
+	function suite.testWindowsDesktop()
+		prepare()
+		dotnetsdk "WindowsDesktop"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+		]]
+	end
+
+	function suite.testMSTest()
+		prepare()
+		dotnetsdk "MSTest/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="MSTest.Sdk/3.4.0">
+		]]
+	end
+
+	function suite.testWPFFlag()
+		prepare()
+		flags { "WPF" }
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+		]]
+	end
+
+	function suite.testWebVersion()
+		prepare()
+		dotnetsdk "Web/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Web/3.4.0">
+		]]
+	end
+
+	function suite.testRazorVersion()
+		prepare()
+		dotnetsdk "Razor/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Razor/3.4.0">
+		]]
+	end
+
+	function suite.testWorkerVersion()
+		prepare()
+		dotnetsdk "Worker/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.Worker/3.4.0">
+		]]
+	end
+
+	function suite.testBlazorVersion()
+		prepare()
+		dotnetsdk "Blazor/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly/3.4.0">
+		]]
+	end
+
+	function suite.testWindowsDesktopVersion()
+		prepare()
+		dotnetsdk "WindowsDesktop/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop/3.4.0">
+		]]
+	end
+
+	function suite.testCustomSDKVersion()
+		prepare()
+		premake.api.addAllowed("dotnetsdk", "CustomSdk")
+		dotnetsdk "CustomSdk/3.4.0"
+		setConfig()
+
+		test.capture [[
+<Project Sdk="CustomSdk/3.4.0">
+		]]
+	end

modules/vstudio/vs2005_csproj.lua

@@ -54,6 +54,7 @@
 				dotnetbase.csversion,
 				dotnetbase.projectConfigurations,
 				dotnetbase.netcore.enableDefaultCompileItems,
+				dotnetbase.netcore.dotnetsdk
 			}
 		else
 			return {

modules/vstudio/vs2005_dotnetbase.lua

@@ -57,11 +57,7 @@
 
 	function dotnetbase.projectElement(prj)
 		if dotnetbase.isNewFormatProject(prj) then
-			if prj.flags.WPF then
-				_p('<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">')
-			else
-				_p('<Project Sdk="Microsoft.NET.Sdk">')
-			end
+			_p('<Project Sdk="%s">', dotnetbase.netcore.getsdk(prj))
 		else
 			local ver = ''
 			local action = p.action.current()
@@ -827,6 +823,33 @@
 		end
 	end
 
+	function dotnetbase.netcore.getsdk(cfg)
+        local map = {
+			["Default"] = "Microsoft.NET.Sdk",
+            ["Web"] = "Microsoft.NET.Sdk.Web",
+            ["Razor"] = "Microsoft.NET.Sdk.Razor",
+            ["Worker"] = "Microsoft.NET.Sdk.Worker",
+            ["Blazor"] = "Microsoft.NET.Sdk.BlazorWebAssembly",
+            ["WindowsDesktop"] = "Microsoft.NET.Sdk.WindowsDesktop",
+            ["MSTest"] = "MSTest.Sdk",
+        }
+
+		local parts = nil
+
+		if cfg.dotnetsdk then
+			parts = cfg.dotnetsdk:explode("/", true, 1)
+		end
+
+		local sdk = (parts and #parts > 0 and parts[1]) or cfg.dotnetsdk
+		if not parts or #parts < 2 then
+			return map[sdk or "Default"]
+		elseif parts and #parts == 2 then
+			return string.format("%s/%s", map[parts[1]] or parts[1], parts[2])
+		end
+
+		return map["Default"]
+	end
+
 	function dotnetbase.allowUnsafeBlocks(cfg)
 		if cfg.clr == "Unsafe" then
 			_p(2,'<AllowUnsafeBlocks>true</AllowUnsafeBlocks>')

src/_premake_init.lua

@@ -355,12 +355,20 @@
 			"RelativeLinks",
 			"ShadowedVariables",
 			"UndefinedIdentifiers",
-			"WPF",
+			"WPF", 				   -- DEPRECATED
 		},
 		aliases = {
 			FatalWarnings = { "FatalWarnings", "FatalCompileWarnings", "FatalLinkWarnings" },
 		},
 	}
+	--25 November 2024
+	api.deprecateValue("flags", "WPF", 'Use `dotnetsdk "WindowsDesktop"` instead.',
+	function(value)
+		dotnetsdk "WindowsDesktop"
+	end,
+	function(value)
+		dotnetsdk "Default"
+	end)
 
 	api.register {
 		name = "floatingpoint",

src/base/api.lua

@@ -265,7 +265,11 @@
 
 		if type(field.allowed) == "table" then
 			for i, item in ipairs(field.allowed) do
-				field.allowed[item:lower()] = item
+				if(type(item) == "function") then
+					field.allowed["dynamicvalidator"] = item
+				else
+					field.allowed[item:lower()] = item
+				end
 			end
 		end
 

website/docs/dotnetsdk.md

@@ -0,0 +1,52 @@
+Selects a .NET SDK
+
+```lua
+dotnetsdk "SDK"
+```
+
+For more information see the MSDN documentation [here](https://learn.microsoft.com/en-us/dotnet/core/project-sdk/overview)
+
+## parameters ##
+`SDK` is one of:
+
+ * [Default](https://learn.microsoft.com/en-us/dotnet/core/project-sdk/msbuild-props)
+ * [Web](https://learn.microsoft.com/en-us/aspnet/core/razor-pages/web-sdk?toc=%2Fdotnet%2Fnavigate%2Ftools-diagnostics%2Ftoc.json&bc=%2Fdotnet%2Fbreadcrumb%2Ftoc.json)
+ * [Razor](https://learn.microsoft.com/en-us/aspnet/core/razor-pages/sdk?toc=%2Fdotnet%2Fnavigate%2Ftools-diagnostics%2Ftoc.json&bc=%2Fdotnet%2Fbreadcrumb%2Ftoc.json)
+ * [Worker](https://learn.microsoft.com/en-us/dotnet/core/extensions/workers)
+ * [Blazor](https://learn.microsoft.com/en-us/aspnet/core/blazor/)
+ * [WindowsDesktop](https://learn.microsoft.com/en-us/dotnet/core/project-sdk/msbuild-props-desktop?view=aspnetcore-8.0)
+ * [MSTest](https://learn.microsoft.com/en-us/dotnet/core/testing/unit-testing-mstest-sdk)
+
+
+## mstest ##
+when using MSTest sdk a version has to be specified!
+### Applies To ###
+
+Project configurations.
+
+### Availability ###
+
+Premake 5.0 beta4 or later.
+
+Visual studio is the only toolset currently supported.
+
+### Examples ###
+```lua
+dotnetsdk "Web"
+```
+
+```lua
+dotnetsdk "Web/3.4.0"
+
+```
+## CustomSDK
+
+```lua
+premake.api.addAllowed("dotnetsdk", "CustomSDK") -- add the customSDK to allowed values for dotnetsdk
+dotnetsdk "CustomSDK/3.4.0"
+```
+
+```lua
+premake.api.addAllowed("dotnetsdk", "CustomSDK") -- add the customSDK to allowed values for dotnetsdk
+dotnetsdk "CustomSDK"
+```

website/sidebars.js

@@ -122,6 +122,7 @@ module.exports = {
 						'display',
 						'documentationfile',
 						'dotnetframework',
+						'dotnetsdk',
 						'dpiawareness',
 						'editandcontinue',
 						'editorintegration',