March 2021 – Knowledgebase

Convert PDF to hex string in .NET 4.7.2 for T-SQL insert statement

29 March, 2021 Roel van Lisdonk 0 Comments 1 category

private string ConvertToHexString(string filePath) { byte[] contentAsBytes = File.ReadAllBytes(filePath); string contentAsHexString = BitConverter.ToString(contentAsBytes).Replace("-", ""); return contentAsHexString; }

Custom IHttpHandler 404 not found in .NET Framework 4.7.2

29 March, 2021 Roel van Lisdonk 0 Comments 1 category

When you add a custom IHttpHandler to your ASP .NET Framework 4.7.2 project in a root folder like /Handlers/MyHandler.ashx and you access the url /Handlers/MyHandler.ashx, this handler will be executed, But if you want

Fix .NET 4.7.3 MVC PowerShell msbuild csproj – ASPNETCOMPILER : error ASPRUNTIME: ‘/temp’ is not a valid IIS application.

19 March, 2021 Roel van Lisdonk 0 Comments 1 category

On a specific system, when using msbuild in the folder: “C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin”, I was getting the error: ….csproj” (Build target) (1) -> (MvcBuildViews target) -> ASPNETCOMPILER : error ASPRUNTIME: '/temp'

.NET 4.7.3 How to fix: The CodeDom provider type “Microsoft.VisualC.CppCodeProvider, CppCodeProvider, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a” could not be located.

18 March, 2021 Roel van Lisdonk 0 Comments 1 category

Solution Close Visual Studio 2019 Remove package.lock.json Execute: npm i Open Visual Studio 2019 Rebuild project Error The CodeDom provider type “Microsoft.VisualC.CppCodeProvider, CppCodeProvider, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a” could not be located. File:

PowerShell – Negate boolean – use -Not

17 March, 2021 Roel van Lisdonk 0 Comments 1 category

https://stackoverflow.com/questions/8095638/how-do-i-negate-a-condition-in-powershell function FolderExists { param($folder) $folderExists = Test-Path “$($folder)” If ($folderExists -eq $True) { Write-Host “Folder [$($folder)] exists.” } Else { Write-Host “Folder [$($folder)] does NOT exist.” } return $folderExists } if(-Not (FolderExists -folder “C:\ThisFolderDoesNotExistOnThisSystem”)) { Write-Host “Folder does not exists!!!!!” < p style=”background: #1e1e1e”>}

NET 5.0 – Windows Server 2008 R2 Standard – Unable to load ‘D:\Websites\VBV\.\hostfxr.dll’. This might be caused by a bitness mismatch between IIS application pool and published application.

16 March, 2021 Roel van Lisdonk 0 Comments 1 category

Solution By default the application was created with “Enable 32-Bit Applications” set to true. After changing this to “false”, the error was resolved. Error Failed to start application ‘/LM/W3SVC/3/ROOT’, ErrorCode ‘0x800700c1’. Could

.NET 2.2 => NET 5.0 – Endpoint Routing does not support ‘IApplicationBuilder.UseMvc(…)

15 March, 2021 Roel van Lisdonk 0 Comments 1 category

Solution Use “endpoint” routing Old app.ConfigureExceptionHandler(loggerFactory); app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseSpaStaticFiles(); app.UseAuthentication(); app.UseCors(“CorsPolicy”); app.UseMvc(routes => { routes.MapRoute( name: “default”, template: “{controller}/{action=Index}/{id?}”); }); New app.ConfigureExceptionHandler(loggerFactory); app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseSpaStaticFiles(); app.UseRouting(); app.UseCors(“CorsPolicy”); app.UseAuthentication(); app.UseEndpoints(endpoints => {

.NET 2.2 => NET 5 – Fix – The call is ambiguous between the following methods or properties: ‘ServiceCollectionExtensions.AddAutoMapper(IServiceCollection, params Assembly[])’ and ‘ServiceCollectionExtensions.AddAutoMapper(IServiceCollection, params Type[])’

15 March, 2021 Roel van Lisdonk 0 Comments 1 category

To fix this error I followed: https://www.thecodebuzz.com/configure-automapper-asp-net-core-profile-map-object/ services.AddAutoMapper(typeof(Startup).Assembly);

NET 5 – Fix – System.InvalidOperationException: ‘Application is running inside IIS process but is not configured to use IIS server.’

15 March, 2021 Roel van Lisdonk 0 Comments 1 category

After updating a .NET Core 2.2 app to NET 5, the following error appeared: System.InvalidOperationException: ‘Application is running inside IIS process but is not configured to use IIS server.’ To fix this use

NET 5 – Fix – ‘IConfigurationSection’ does not contain a definition for ‘Get’ and no accessible extension method ‘Get’ accepting a first argument of type ‘IConfigurationSection’ could be found (are you missing a using directive or an assembly reference?)

15 March, 2021 Roel van Lisdonk 0 Comments 1 category

‘IConfigurationSection’ does not contain a definition for ‘Get’ and no accessible extension method ‘Get’ accepting a first argument of type ‘IConfigurationSection’ could be found (are you missing a using directive or an assembly reference?)

Month: March 2021