TreeListNodesIterator.DoLocalOperation(TreeListOperationDelegate, TreeListNodes) Method

Performs the specified method over the predefined set of nodes and their children.

Namespace: DevExpress.XtraTreeList.Nodes.Operations

Assembly: DevExpress.XtraTreeList.v19.1.dll

Declaration

C#

public virtual void DoLocalOperation(
    TreeListOperationDelegate operation,
    TreeListNodes nodes
)

VB.NET

Public Overridable Sub DoLocalOperation(
    operation As TreeListOperationDelegate,
    nodes As TreeListNodes
)

Parameters

Name	Type	Description
operation	DevExpress.XtraTreeList.Nodes.Operations.TreeListOperationDelegate	A TreeListOperationDelegate object that represents the method to be called for the specified nodes.
nodes	TreeListNodes	A TreeListNodes object representing the collection of nodes across which the operation is performed.

Remarks

Use the DoLocalOperation method to traverse through the collection of nodes specified by the nodes parameter and their child nodes, and perform a specific operation on them. The operation is specified by the operation parameter.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DoLocalOperation(TreeListOperationDelegate, TreeListNodes) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-implement-excel-style-tree-filtering-in-a-filter-popup-t143068/CS/RangeDate/MyGridControl/MyDateFilterPopup.cs#L143

bool check = true;
treelist.NodesIterator.DoLocalOperation((childNode) =>
{

VB.NET

how-to-implement-excel-style-tree-filtering-in-a-filter-popup-t143068/VB/RangeDate/MyGridControl/MyDateFilterPopup.vb#L122

Dim check As Boolean = True
treelist.NodesIterator.DoLocalOperation(Sub(childNode)
    childCheck = True