CheckBox Sample Folder 1Folder 1.1Folder 1.1.1Folder 1.1.2Folder 1.1.3Folder 1.1.4Folder 1.2Folder 1.3Folder 1.4Folder 1.5Folder 2Folder 2.1Folder 2.2Folder 2.3Folder 2.4Folder 2.5Folder 3Folder 3.1Folder 3.2Folder 3.3Folder 3.4Folder 3.5 Description C1TreeView supports showing tree nodes with tri-state check boxes. In order to show tree nodes with check box, the following properties are used in this sample. ShowCheckBoxes - set to True to show check boxes. AutoCheckNodes - for specifying whether the sub-nodes will be checked according to its parent's check state. AllowTriState - for specifying whether the node can be in indeterminate state. Tri-state check boxes have 3 states "Checked", "Unchecked" and "Indeterminate". The "Indeterminate" state indicates that the node has both checked and unchecked child nodes. Documentation