Is there a way to trigger Outlook-Add-Ins (Web) from external? (Custom event activation)
I am currently working on Office365 add-ins development and their communication via asp.net interfaces which are registered with entra id. I would like to open email templates from an external program. Templates can be created via ms-graph or by the…
How to handle "RunCommand property is not defined" issue?
Here I have a .NET 6 ASP.NET project. When run IIS Express, it pops "RunCommand property is not defined".

Event ID 1309 Source: ASP.NET 4.0.30319.0: Event code: 3005 Event message: An unhandled exception occurred. How to solve it?
工程师您好: AD环境中每台mail服务器上都有warning告警事件id 1309。具体信息如下: 消息 : Event code: 3005 Event message: 发生了未经处理的异常。 Event time: 2025/2/28 7:12:52 Event time (UTC): 2025/2/27 23:12:52 Event ID: 2d12345aeaf1234c8be12d60a123456f Event sequence: 144 Event occurrence: 143…
How do I share a Sqlite database between my desktop and laptop?
I'm writing a Minimal API application using .NET 9. I started this on my laptop, then committed the changes to my GitHub repo and tried to pick up where I left off on my desktop. However, when I tried to test it using Postman to retrieve the dishes of a…

Unhandled exception in CoreCLR
The following error was raised in IIS on Production Server. Application: w3wp.exe CoreCLR Version: 8.0.724.31311 .NET Version: 8.0.7 Description: The process was terminated due to an unhandled exception. Exception Info: exception code c0000005, exception…
.NET 9 OpenAPI document not generating at build time (Microsoft.Extensions.ApiDescription.Server)
Hi all, I'm working on a .NET 9 web API project and I'm trying to generate an OpenAPI document at build time, as described in the official documentation here:…
facing an issue with cookieless Forms Authentication in an ASP.NET sub-application that is integrated with a main application built in Python
Hello, We are facing an issue with cookieless Forms Authentication in an ASP.NET sub-application that is integrated with a main application built in Python. The main application (Python) and sub-application (ASP.NET) work together.The ASP.NET…
ASP .NET 9 API Error (Multiple constructors accepting all given argument types have been found)
I got the error below after upgrading from .NET 8 to .NET 9. I checked in the NuGet Package Manager, but my solution does not contain Microsoft.AspNetCore.Cors package. InvalidOperationException: Multiple constructors accepting all given argument types…

Operation Not Supported on This Platform When Consuming WCF Service in .NET 8
untering the error "Operation not supported on this platform" while attempting to consume a WCF service from .NET 8. The service is built in .NET Framework with wsHttp security. The implementation involves passing a username, password, and a…
When we will update on the next version of MVC5.3.0 if there is no updates on the version please provide documentation for that.
Hi please provide the relavent info regarding the ASP.NET MVC 5.3.0 is there any updated on version if not please provide the documentation. Regards vinayak
Web App Builds But Only Shows Default ASP.NET Page – Why?
Hi everyone, I’m currently working with an existing on-premise ASP.NET Web API application. I opened the solution in Visual Studio, and it builds and runs without errors. However, when I run the application, it shows the default ASP.NET landing page…
OpenTelemetry with App Insights Profiler
Hello, We migrated our project to OpenTelemetery from application Insight. Of course, AppInsight is our Exporter now. However, I don't want to lose the "Service Profiler". So I installed ONLY…


How to initialize GridView inside a modal popup using AjaxControlkit
When I click a button, AjaxControlkit launches a nice modal popup, and I have a GridView included which is inside an asp:Panel. Initially, it is empty, so you don't see anything - no header, no borders, no nothing. Is there a way to get the GridView…

How to add API Authentication and authorization in web server (Kestrel - Self hosted) created in .Net Standard 2.0.
I want to add API Authentication and authorization in our web server (Kestrel - Self hosted) created in .Net Standard 2.0. I want to use Windows authentication here. We found that this can be done using the AddNegotiate() in…
How locate Web.config file
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how to show web api data in my sql
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How can I drag and Drop and email from Outlook into a web form, and parse out the email details
I have a drag and drop form working, but I cannot get the email details from the 'dropped' file. Tried using the Microsoft.Office.Interop.Outlook package (had success in a winformapp), but I can't figure it out. Here is a js snippet I am using to trap…