Updating dataset from datagrid

01-Feb-2018 07:02 by 5 Comments

Updating dataset from datagrid

To insert, update, and delete data using a Data Adapter, you create an Ole Db Command object with INSERT, UPDATE, and DELETE statements and set the Insert Command, Update Command, and Delete Command properties of the data adapter to Ole Db Command.You can avoid building Command objects manually by using Command Builder.

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When the delete button is clicked, the row will be deleted from the database.

NET EF, select ‘Employee’ table created in SQL Server using the script.

This code first searches the selected Employee row using LINQ.

As you can see from listing 5-48, I created a filled Data Set and created a new Data Row using the Data Table. After creating a Data Row, I set its column values and called the Data Adapter's Update method and displayed data in the Data Grid.

I added new rows to the Customers table with Customer Id, Customer Name, and Company Name (named Tst ID, Lana Jackob, and Mindcracker Inc., respectively). Adding data using a Data Adapter's Update method Listing 5-49 shows an example that edits row data.

The way the architecture works with the Data Adapter is that you can make any changes you want to the filled Data Set, and it won't affect the database until you call the Update method.

When Update is called, the Data Adapter will attempt to execute each query (UPDATE, INSERT, DELETE) on every row of the Data Set that has been updated, inserted, and deleted.Listing 5-50 deletes the row with the value Tst ID.As you can see from the code, I called the Find method to find the row and called the Delete method of the Data Row.Introduction A Data Grid View control can be used to display data from a database.A table can be displayed from a database in a Data Grid View, using the Data Adapter class and data logic.Now run the application, click on the update button in the row and select cell to be changed (in this example ‘Salary’ and ‘Dept No’ cells can be changed).

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