TreeList.FindNode(Predicate<TreeListNode>) Method

Returns the first node that matches the specified criteria.

Assembly : DevExpress.XtraTreeList.v25.2.dll

NuGet Packages : DevExpress.Win.Navigation, DevExpress.Win.TreeList

Declaration

C#
VB.NET

csharp

public TreeListNode FindNode(
    Predicate<TreeListNode> match
)

Public Function FindNode(
    match As Predicate(Of TreeListNode)
) As TreeListNode

Parameters

Name	Type	Description
match	Predicate<TreeListNode>

The method that defines a set of criteria and determines whether a TreeListNode meets those criteria.

Returns

Type	Description
TreeListNode

The first node that matches the specified criteria. null ( Nothing in Visual Basic) if no matching node is found.

Remarks

The FindNode method calls the specified predicate for each node in the data source until the predicate returns true. When this happens, the currently processed node is returned by the FindNode method.

The following example shows how you can get the first node that has the “London” string in the City column:

C#
VB.NET

csharp

TreeListNode myNode = treeList1.FindNode((node) => {
    return node["City"].ToString() == "London";
}
);

Dim myNode As TreeListNode = TreeList1.FindNode(Function(node)
    Return node("City").ToString() = "London"
End Function)