Implementing Syncfusion WPF Multi Column Dropdown

The SfMultiColumnDropDownControl combines a TextBox editor with a powerful SfDataGrid to provide a searchable, filterable dropdown control that displays multiple columns. It supports autocomplete, incremental filtering, single and multi-selection modes, and extensive customization options.

Component Overview

SfMultiColumnDropDownControl is a composite control that embeds a SfDataGrid within a dropdown popup, enabling users to:

• Search and filter items by typing in the editor
• View multiple columns of data in the dropdown
• Select single or multiple items from the grid
• Autocomplete text based on DisplayMember
• Customize popup appearance, columns, and behavior

Key capabilities:

• Data binding to any IEnumerable source
• Automatic or manual column generation
• Case-sensitive and diacritic-sensitive filtering
• Complex and indexer property binding
• Keyboard navigation and accessibility support