RadioGroupItemCollection Class

Represents a collection of items within a radio group editor.

Namespace: DevExpress.XtraEditors.Controls

Assembly: DevExpress.XtraEditors.v18.1.dll

Declaration

C#

[ListBindable(false)]
public class RadioGroupItemCollection :
    CollectionBase,
    IEnumerable<RadioGroupItem>,
    IEnumerable

VB.NET

<ListBindable(False)>
Public Class RadioGroupItemCollection
    Inherits CollectionBase
    Implements IEnumerable(Of RadioGroupItem),
               IEnumerable

Related API Members

The following members accept/return RadioGroupItemCollection objects:

• RepositoryItemRadioGroup.Items

Remarks

The collection of items in a RadioGroup editor can be accessed via the repository item’s RepositoryItemRadioGroup.Items property. This property returns a RadioGroupItemCollection object whose members can be used to manage the collection. You can add, remove, access individual items and perform other common collection management tasks using the object’s properties and methods.

Individual items are objects which mean that they can be of any type. When selecting an item, the value representing the item is assigned to the editor’s BaseEdit.EditValue property.

Note: to ensure that the editor works correctly, items in the RepositoryItemRadioGroup.Items collection must be unique objects.

Example

The following code shows how to add items to a RadioGroup and then select one of the items. To select an item, the item’s value is assigned to the editor’s BaseEdit.EditValue property.

C#

using DevExpress.XtraEditors.Controls;

// Create five items.
object[] itemValues = new object[] {10, 11, 12, 13, 14};
string [] itemDescriptions = new string [] {"Circle", "Rectangle", "Ellipse", "Triangle", "Square"};
for(int i = 0; i < itemValues.Length; i++) {
    radioGroup1.Properties.Items.Add(new RadioGroupItem(itemValues[i], itemDescriptions[i]));
}
//Select the Rectangle item.
radioGroup1.EditValue = 11;

VB.NET

Imports DevExpress.XtraEditors.Controls

' Create five items.
Dim itemValues As Object() = New Object() {10, 11, 12, 13, 14}
Dim itemDescriptions As String() = New String () {"Circle", "Rectangle", "Ellipse", "Triangle", "Square"}
Dim i As Integer = 0
Do While i < itemValues.Length
    radioGroup1.Properties.Items.Add(New RadioGroupItem(itemValues(i), itemDescriptions(i)))
    i += 1
Loop
'Select the Rectangle item.
radioGroup1.EditValue = 11

Related GitHub Examples

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

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#

how-to-create-a-custom-radiogroup-control-whose-items-show-a-tooltip-e3477/CS/TestMyRadioGroup/MyRadioGroupItemCollection.cs#L10

[ListBindable(false)]
public class MyRadioGroupItemCollection : RadioGroupItemCollection
{

VB.NET

how-to-create-a-custom-radiogroup-control-whose-items-show-a-tooltip-e3477/VB/TestMyRadioGroup/MyRadioGroupItemCollection.vb#L11

Public Class MyRadioGroupItemCollection
    Inherits RadioGroupItemCollection
    Default Public Shadows Property Item(ByVal index As Integer) As MyRadioGroupItem

Inheritance

Object

CollectionBase

RadioGroupItemCollection