IModelColumns Interface

The Columns node provides access to a List View’s columns.

Namespace: DevExpress.ExpressApp.Model

Assembly: DevExpress.ExpressApp.v21.2.dll

Declaration

C#

[ModelNodesGenerator(typeof(ModelListViewColumnsNodesGenerator))]
public interface IModelColumns :
    IModelNode,
    IModelList<IModelColumn>,
    IList<IModelColumn>,
    ICollection<IModelColumn>,
    IEnumerable<IModelColumn>,
    IEnumerable

VB.NET

<ModelNodesGenerator(GetType(ModelListViewColumnsNodesGenerator))>
Public Interface IModelColumns
    Inherits IModelNode,
             IModelList(Of IModelColumn),
             IList(Of IModelColumn),
             ICollection(Of IModelColumn),
             IEnumerable(Of IModelColumn),
             IEnumerable

Related API Members

The following members accept/return IModelColumns objects:

• IModelListView.Columns

Remarks

When the Layout node is selected in the Model Editor, a design surface is displayed on the right, instead of the property list:

To learn more, refer to the List View Columns Customization topic.

This interface is a part of the Application Model infrastructure. You do not need to implement this interface in most cases.

The IModelColumns node represents a list of the IModelColumn nodes.

To customize the default content of this node, implement a Generator Updater for the ModelListViewColumnsNodesGenerator Nodes Generator.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the IModelColumns interface.

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.

VB.NET

XAF_how-to-prevent-sorting-and-grouping-by-certain-columns-in-a-listview-e1254/VB/WinWebSolution.Module/ListViewColumnOptionsController.vb#L29

For Each columnWrapper As ColumnWrapper In columnsListEditor.Columns
    Dim options As IModelListViewColumnOptions = TryCast((CType(columnsListEditor.Model.Columns, DevExpress.ExpressApp.Model.IModelColumns)).GetNode(columnWrapper.PropertyName), IModelListViewColumnOptions)
    If options IsNot Nothing Then

XAF_how-to-add-an-unbound-column-to-gridlisteditor-to-execute-a-custom-action-for-a-record-e1748/VB/WinSolution.Module.Win/SimpleBusinessActionGridListViewController.vb#L42

Private Sub InitButtonColumn()
    unboundModelColumn = TryCast((CType(gridListEditor.Model.Columns, IModelColumns)).GetNode(ButtonColumnName), IModelColumn)
    If unboundModelColumn Is Nothing Then

C#

XAF_how-to-add-an-unbound-column-to-gridlisteditor-to-execute-a-custom-action-for-a-record-e1748/CS/WinSolution.Module.Win/SimpleBusinessActionGridListViewController.cs#L40

private void InitButtonColumn() {
    unboundModelColumn = (((IModelColumns)gridListEditor.Model.Columns).GetNode(ButtonColumnName) as IModelColumn);
    if (unboundModelColumn == null) {