DropDown with Tree

Combine a Popup and a Tree to build a Blazor DropDownTree for hierarchical single or multiple selection with filtering.

Single selection linkLink to this section

Click the dropdown to open a tree. Selecting a node closes the popup and updates the value.

Multiple selection with checkboxes linkLink to this section

Use AllowCheckBoxes on the tree to enable multi-select. Selected items display as chips.

Filtering linkLink to this section

Add a search box inside the popup to filter tree items.

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