Updating views in visual c C2c live video chat
This article demonstrates how to take a Data Set that contains data (which is loaded from a database), modify that data, and then send it back to the database to update the original source.
ald7685, Please read the following article and try the sample code, I think this is the easiest way to solve the problem: How to update a database from a Data Set object by using Visual Basic .
This is achieved using the Visual Basic File Stream class.
In Entity Framework you add a View to your Db Context object with the same code you use to add a table.To load these DTOs with the data they need, I retrieve rows from multiple tables and pull selected columns from each table to populate the properties on my DTOs.A reader recently pointed out to me that I could drastically simplify that retrieval code by leveraging SQL views.These fall into the categories of File Mode, File Access and File Share. Stream Writer(text File Stream) Dim my File Reader As New IO. This is achieved using the Visual Basic File System Watcher class.The options available as listed in the following tables: Note that the above code example assumes that the 'C:\Temp' directory already exists. Working with Directories is covered in Working with Directories in Visual Basic. Stream Writer(text File Stream) Dim int Counter As Integer For int Counter = 0 To 10 my File Writer. Stream Reader(text File Stream) Dim int Counter As Integer Dim str File Contents As String For int Counter = 0 To 10 my File Writer. To try this, start Visual Studio and create a new Windows Application project.
It makes sense, therefore, to create views in SQL Server that correspond to the DTOs I will return from my back-end server.