BindingSource trong .NET Framework

What is BindingSource used for in .NET Framework?

• Manage the connection between the database and server

• Manage the connection between data and user interface

• Create user interface

• Handle events in the application

What is the Filter property of BindingSource used for?

• Sort data

• Add new records

• Filter records based on conditions

• Delete records

What is the correct syntax to filter data in BindingSource by the field TenSach with the value 'Đồi gió hú'?

• bindingSource.Filter = "TenSach == ' Đồi gió hú'";

• bindingSource.Filter = "TenSach = ' Đồi gió hú'";

• bindingSource.Filter = "TenSach === ' Đồi gió hú'";

• bindingSource.Filter = "TenSach LIKE ' Đồi gió hú'";

Which operator is used to filter records where the field Name starts with the character 'A'?

• =

• !=

• LIKE 'A%'

• LIKE '%A'

In ComboBox, what should the added Items have names similar to?

• Names of methods in the source code

• Names of classes in the application

• Names of fields in the database

• Names of global variables

When should the AND operator be used in the Filter property of BindingSource?

• When wanting to filter data by a single condition

• When wanting to filter data by multiple conditions at once

• When wanting to sort data

• When wanting to delete data

The error 'Cannot find column' usually occurs when?

• Database connection fails

• Item name in ComboBox does not match the field name in the database

• DataGridView is not set up with a data source

• Filter property is not assigned a value