#### [PromptPlus](PromptPlus.md 'PromptPlus') ### [PromptPlusLibrary](PromptPlusLibrary.md 'PromptPlusLibrary') ## ITreeMultiSelectNode\ Interface Represents a node of the tree exposed by [ITreeMultiSelectControl<T>](ITreeMultiSelectControl_T_.md 'PromptPlusLibrary\.ITreeMultiSelectControl\') while it is being constructed\. Extends [ITreeNode<T>](ITreeNode_T_.md 'PromptPlusLibrary\.ITreeNode\') so that chaining off a node returned by [AddLast\(T, bool, bool\)](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.AddLast(T,bool,bool) 'PromptPlusLibrary\.ITreeMultiSelectNode\\.AddLast\(T, bool, bool\)')/[AddFirst\(T, bool, bool\)](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.AddFirst(T,bool,bool) 'PromptPlusLibrary\.ITreeMultiSelectNode\\.AddFirst\(T, bool, bool\)') keeps access to the TreeMultiSelect\-specific `check` parameter, the same way the base `disable` parameter already works on [ITreeNode<T>](ITreeNode_T_.md 'PromptPlusLibrary\.ITreeNode\')\. ```csharp public interface ITreeMultiSelectNode : PromptPlusLibrary.ITreeNode ``` #### Type parameters `T` The user item type held by the node\. Implements [PromptPlusLibrary\.ITreeNode<](ITreeNode_T_.md 'PromptPlusLibrary\.ITreeNode\')[T](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.T 'PromptPlusLibrary\.ITreeMultiSelectNode\\.T')[>](ITreeNode_T_.md 'PromptPlusLibrary\.ITreeNode\') ### Methods ## ITreeMultiSelectNode\\.AddFirst\(T, bool, bool\) Method Inserts a child at the beginning of this node's children collection\. ```csharp PromptPlusLibrary.ITreeMultiSelectNode AddFirst(T value, bool disable=false, bool check=false); ``` #### Parameters `value` [T](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.T 'PromptPlusLibrary\.ITreeMultiSelectNode\\.T') The value of the new child\. Cannot be `null`\. `disable` [System\.Boolean](https://learn.microsoft.com/en-us/dotnet/api/system.boolean 'System\.Boolean') When `true`, the new child cannot be checked\. Default is `false`\. `check` [System\.Boolean](https://learn.microsoft.com/en-us/dotnet/api/system.boolean 'System\.Boolean') Same semantics as in [AddLast\(T, bool, bool\)](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.AddLast(T,bool,bool) 'PromptPlusLibrary\.ITreeMultiSelectNode\\.AddLast\(T, bool, bool\)')\. #### Returns [PromptPlusLibrary\.ITreeMultiSelectNode<](ITreeMultiSelectNode_T_.md 'PromptPlusLibrary\.ITreeMultiSelectNode\')[T](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.T 'PromptPlusLibrary\.ITreeMultiSelectNode\\.T')[>](ITreeMultiSelectNode_T_.md 'PromptPlusLibrary\.ITreeMultiSelectNode\') The newly created child node\. ## ITreeMultiSelectNode\\.AddLast\(T, bool, bool\) Method Appends a child at the end of this node's children collection\. ```csharp PromptPlusLibrary.ITreeMultiSelectNode AddLast(T value, bool disable=false, bool check=false); ``` #### Parameters `value` [T](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.T 'PromptPlusLibrary\.ITreeMultiSelectNode\\.T') The value of the new child\. Cannot be `null`\. `disable` [System\.Boolean](https://learn.microsoft.com/en-us/dotnet/api/system.boolean 'System\.Boolean') When `true`, the new child cannot be checked\. Default is `false`\. `check` [System\.Boolean](https://learn.microsoft.com/en-us/dotnet/api/system.boolean 'System\.Boolean') When `true`, the new child starts pre\-checked\. Additive with [Default\(IEnumerable<T>, bool\)](ITreeMultiSelectControl_T_.md#PromptPlusLibrary.ITreeMultiSelectControl_T_.Default(System.Collections.Generic.IEnumerable_T_,bool) 'PromptPlusLibrary\.ITreeMultiSelectControl\\.Default\(System\.Collections\.Generic\.IEnumerable\, bool\)') and history — whichever mechanism marks a node checked, it stays checked, neither one clears the other\. Subject to cascade the same way an interactive check would be \(a checked container cascades to its descendants when `CascadeCheck` is on\)\. Unlike `Default`, does not auto\-expand the tree to reveal the node\. #### Returns [PromptPlusLibrary\.ITreeMultiSelectNode<](ITreeMultiSelectNode_T_.md 'PromptPlusLibrary\.ITreeMultiSelectNode\')[T](ITreeMultiSelectNode_T_.md#PromptPlusLibrary.ITreeMultiSelectNode_T_.T 'PromptPlusLibrary\.ITreeMultiSelectNode\\.T')[>](ITreeMultiSelectNode_T_.md 'PromptPlusLibrary\.ITreeMultiSelectNode\') The newly created child node\.