Updating a datatable

20-Sep-2019 14:14

You can also manually change a horizontal axis to a date axis.

A date axis displays dates in chronological order at set intervals or base units, such as the number of days, months, or years, even if the dates on the Excel sheet are not in sequential order or in the same base units.

By default, Office uses the smallest difference between any two dates in the data to determine the base units for the date axis.

For example, if you have data for stock prices where the smallest difference between dates is seven days, Office sets the base unit to days.

For example, if you call Delete on a row on the Data Set, then when Update is called on the Data Adapter, the Delete Command of the Data Adapter will be called using the particular row in the Data Set.

Note: Keep in mind that this Update is different than a SQL UPDATE statement.

The Find method returns the row with Customer Id = Tst ID.

After that I assign values of the row and call the Data Adapter's Update method. Updating data using the Data Adapter's Update method Deleting a row is simple.

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To save data to the data source, you need to call the Data Adapter's Update method. I'll display the result of the Customers table in a Data Grid after adding, updating, and deleting data from the table.

Note: The Tables member of Data Set represents all Data Table objects attached to a Data Set. Adding a Data Row to a Data Table Dim row1 As Data Row = ds. To test this source code create a Windows application, drop a Data Grid, and three buttons- Insert Command, Update Command, and Delete Command to the form.

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