TreeListNodesIterator.DoOperation(TreeListOperationDelegate) Method

Performs the specified method across all nodes.

Namespace: DevExpress.XtraTreeList.Nodes.Operations

Assembly: DevExpress.XtraTreeList.v19.2.dll

Declaration

C#

public virtual void DoOperation(
    TreeListOperationDelegate operation
)

VB.NET

Public Overridable Sub DoOperation(
    operation As TreeListOperationDelegate
)

Parameters

Name	Type	Description
operation	DevExpress.XtraTreeList.Nodes.Operations.TreeListOperationDelegate	A TreeListOperationDelegate object that represents the method to be called for the specified nodes.

Remarks

Use the DoOperation method to traverse through all nodes within the Tree List control and perform a specific operation on them. The operation is specified by the operation parameter.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the DoOperation(TreeListOperationDelegate) 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#L185

, e.Node.Nodes);
treelist.NodesIterator.DoOperation((node) =>
{

how-to-highlight-the-next-or-previous-search-result-in-the-treelist-t368346/CS/WindowsFormsApplication2/FindHelper.cs#L243

    return;
treeList.NodesIterator.DoOperation((node) =>
{

VB.NET

how-to-implement-excel-style-tree-filtering-in-a-filter-popup-t143068/VB/RangeDate/MyGridControl/MyDateFilterPopup.vb#L155

treelist.NodesIterator.DoLocalOperation(Sub(node) node.CheckState = e.Node.CheckState, e.Node.Nodes)
treelist.NodesIterator.DoOperation(Sub(node)
    If node.Level = 0 Then

how-to-highlight-the-next-or-previous-search-result-in-the-treelist-t368346/VB/WindowsFormsApplication2/FindHelper.vb#L239

End If
treeList.NodesIterator.DoOperation(Sub(node)
    For Each col As TreeListColumn In node.TreeList.Columns