deploying winforms application with MS access Database - winforms

I am developing a winforms application with MS access database, the project working properly before publishing, but after the deployment the following error message appears,
and my database doesn't accept any updates

Related

Null Reference Duende Identity Server on Web Assembly publish to Azure

I have a very simple Web Assembly application that is simply testing out publishing to Azure with Duende Identity Server with a SQL Server operational data store. The "functionality" is limited to displaying data from a single table.
This is running correctly in a development environment when connected to a local SQL Server for both the operational store and the functional data base.
I have deployed the database to Asure, and the application also functions correctly when I switch the connection string from the local database to the Azure SQL.
However, when I publish my test application to Azure Application Services, I get a 500 error and the message:
This page isn’t working right now
I have looked at application Insights and see several null reference exceptions:
Microsoft.AspNetCore.ApiAuthorization.IdentityServer.IdentityServerJwtBearerOptionsConfiguration+d__5.MoveNext
and three exceptions similar on:
Duende.IdentityServer.Hosting.DynamicProviders.DynamicSchemeAuthenticationMiddleware+d__3.MoveNext

Deploy a asp.net core web application with sql db to azure using visual studio team services

How to deploy a asp.net core web application with sql db to azure using visual studio team services(VSTS). Application is using entity framework code first approach.
This is a challenging question that falls into the topic of continous integration. It takes a bit of time.
from VS you have set up TFS for pointing your VSTS account and project and the code first to install its changes when deployed at the first launch (application start event).
on VSTS project account, you have set up building feature for launch a build after, let's suppose, a commit on server.
on VSTS project account, you have set up your azure web app account profile from the administration panel of the account (you have the xml file with the references to the web app account and password).
on VSTS project account, you have set up deploy features that make also substitution at fly of the environment connection string (I've done in this way..) and that points to the azure web app account profile you have created on VSTS.
make a commit from your VS and, if all it is done right, then you'll find your code and db changes on azure.
Describing the whole process, would require a substantial article and the relative time to do it. But you can find help googling around (most posts are on StackOverflow) and posting question step by step as you go forward to do this process.

Error publishing database along with web-app to Microsoft Azure in VS15

I am able to successfully publish my web-app without the database and it works perfect. But, since it is dynamic, I need to attach database to it but i am not able to do so.
It's raising an error when previewing database.

Application Server v Database Server

I am currently working on designing a project to be developed in VB.NET using Visual Studio 2010.
The project will be a database access application used to manage records of staff training attendance. Multiple users will be accessing the application at the same time and it needs to work over the internet.
My question is should I have the database server directly connected to the internet for this or should I create an application server for the project and host it on the local network and channel all database queries through it.
There will be the need for some workflow and data routing as well as background job workers but im not sure if I do this as a complete application server and the clients access the data through the application server or if they should access the data directly on the database server and simply write a server program which only handles the workflow routing and background job workers.
Any advice on this would be appreciated.

How To sync online database (of web application) and offline database (of Desktop Application)?

I have 2 application
1st Desktop Application – Which has database on local pc
2nd Web Application – Which has database on server
If internet is unavailable then i m storing data on desktop application and when internet is available data should be store on the server and should also update the data which was stored when internet connection is unavailable
Can you please tell me how above can be achieved
Desktop Application is C# Win form
Web Application is Asp.ne / C# Web application
Thanks in Advance
You don't say what your database technology is, but Microsoft makes the Sync Framework to solve problems like this.

Resources