ExtensionsFactory.TreeList<RowType>(Action<TreeListSettings<RowType>>) Method
Creates a TreeList.
Namespace: DevExpress.Web.Mvc.UI
Assembly: DevExpress.Web.Mvc5.v24.2.dll
NuGet Package: DevExpress.Web.Mvc5
#Declaration
public TreeListExtension<RowType> TreeList<RowType>(
Action<TreeListSettings<RowType>> method
)
where RowType : class
#Parameters
Name | Type | Description |
---|---|---|
method | Action<Tree |
A delegate method that accepts Tree |
#Type Parameters
Name |
---|
Row |
#Returns
Type | Description |
---|---|
Tree |
A Tree |
#Remarks
To enable binding TreeList columns to Model fields using lambdas, it is required to declare the TreeList extension using the TreeList<RowType> strongly-typed declaration method.
Note
The partial View with the Tree
The code example below demonstrates how to declare the strongly-typed TreeList with columns bound to data model fields via lambda expressions.
@(
// TreeList displays instances of the EditablePost class.
Html.DevExpress().TreeList<EditablePost>(settings => {
settings.Name = "treeList";
settings.CallbackRouteValues = new { Controller = "Home", Action = "TreeListPartial" };
settings.KeyField(m => m.PostID);
settings.ParentField(m => m.ParentID);
// The following columns are bound to Model fields via lambdas.
settings.Columns.Add(m => m.From);
settings.Columns.Add(m => m.Subject);
settings.Columns.Add(m => m.PostDate);
settings.Columns.Add(m => m.IsNew, c => c.ColumnType = MVCxTreeListColumnType.CheckBox);
settings.Columns.Add(m => m.HasAttachment, c => c.ColumnType = MVCxTreeListColumnType.CheckBox);
}).Bind(Model).GetHtml()
)