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A data provider is used for connecting to a database, executing commands and retrieving data, storing it in a dataset, reading the retrieved data and updating the database. Net consists of the following four objects − Data Adapter This is integral to the working of ADO.Net since data is transferred to and from a database through a data adapter.If you can please zip up the following 1 The folder that contains the complete project 2 The test database files so that I can see first hand what is going on.Once you have done that upload them to a location on the internet where it can be download from such as Microsoft One Drive, Google Docs, ... Hopefully you are using a Test database that has fictitious data in it or real data if that is permissible.In Microsoft SQL Server Management Studio expand the database node select the database name you want to find the location of the files right click on that name and select the Properties.
I have a textbox called 'txt Cols Text Box' which stores the value and a button called 'btn Save Exit'.
The columns are different in the datagrid than what I expect and the combo has about 50 duplicates the first time I open it. You wrote the retrieve part when you created the SQL Select statement and when you created the object Sql Command Builder it created the other three statements for you.