Updating dataset from datagrid datingonline net
A Data Set is an in-memory data store that can hold numerous tables.Data Sets only hold data and do not interact with a data source.
If you want to create a new row in code then you use the Binding Source like so: The user can then enter the field values via the UI and the row is committed to the underlying Data Table when they navigate away to another record. Database1Data Set1) Dim new Row = Direct Cast(Produse Binding Source. And i have 3-4 columns in that row , how hould i do that , i tried some variants but did not succeed.
In Lesson 4, we learned about how to read data quickly an let go of the connection with the Sql Data Reader.
This Lesson shows how to accomplish something in-between Sql Connection and Sql Data Reader interaction by using the Data Set and Sql Data Adapter objects.
This is a work in progress and feedback is an important factor in improving this tutorial. A few general concepts are presented here and represent my best understanding of how the Data Set and Data Grid works. The Data Set can encapsulate a parent child hierarchy of zero or more data tables.
The Data Set also stores its state, storing both the @original values and any new uncommitted values.