TreeListColumnCollection.ForEach(Action<TreeListColumn>) Method

Executes the specified action on each element of the collection.

Namespace : DevExpress.XtraTreeList.Columns

Assembly : DevExpress.XtraTreeList.v25.2.dll

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

Declaration

csharp

public void ForEach(
    Action<TreeListColumn> action
)

Public Sub ForEach(
    action As Action(Of TreeListColumn)
)

Name	Type	Description
action	Action<TreeListColumn>

The delegate to execute on each element of the collection.

The code below converts all column headers to uppercase.

csharp

treeList1.Columns.ForEach(column => column.Caption = column.Caption.ToUpper());

treeList1.Columns.ForEach(Sub(column) column.Caption = column.Caption.ToUpper())