IModelOptionsWin.UIType Property

Specifies the Show View Strategy (see ShowViewStrategyBase) used in the WinForms application.

Namespace: DevExpress.ExpressApp.Win.SystemModule

Assembly: DevExpress.ExpressApp.Win.v24.2.dll

NuGet Packages: DevExpress.ExpressApp.Win, DevExpress.ExpressApp.Win.Design

Declaration

C#

[DefaultValue(UIType.MultipleWindowSDI)]
UIType UIType { get; set; }

VB.NET

<DefaultValue(UIType.MultipleWindowSDI)>
Property UIType As UIType

Property Value

Type	Default	Description
UIType	MultipleWindowSDI	A UIType enumeration value specifying the type of the UI used in the WinForms application.

Available values:

Name	Description
MultipleWindowSDI	Specifies that the Single Document Interface ShowInMultipleWindowsStrategy is used in the Windows Forms application.
SingleWindowSDI	Specifies that the Single Document Interface ShowInSingleWindowStrategy is used in the ASP.NET Core Blazor or Windows Forms application.
StandardMDI	Specifies that the Multiple Document Interface MdiShowViewStrategy is used in the Windows Forms application.
TabbedMDI	Specifies that the Multiple Document Interface MdiShowViewStrategy in tabbed mode is used in the ASP.NET Core Blazor or Windows Forms application.

Remarks

We do not recommend setting this property to StandardMDI when the Ribbon interface is used. This configuration has not been thoroughly tested, as we have found it much less usable than others, and can potentially lead to errors. In conjunction with the Ribbon, the TabbedMDI mode provides better usability.

The following images demonstrate how the WinForms application UI is modified depending on this property’s value.

MultipleWindowSDI

SingleWindowSDI

StandardMDI

TabbedMDI

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the UIType property.

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#

XAF_how-to-show-filter-dialog-before-listview/CS/E1554.Module.Win/WinModule.cs#L30

void application_ModelChanged(object sender, EventArgs e) {
    UIType uiType = ((IModelOptionsWin)Application.Model.Options).UIType;
    if (uiType == UIType.StandardMDI) {

VB.NET

XAF_how-to-show-filter-dialog-before-listview/VB/E1554.Module.Win/WinModule.vb#L32

Private Sub application_ModelChanged(ByVal sender As Object, ByVal e As EventArgs)
    Dim uiType As UIType = DirectCast(Application.Model.Options, IModelOptionsWin).UIType
    If uiType = UIType.StandardMDI Then