XPCollection.IndexOf(Object) Method

Returns the index of the specified object in the XPCollection.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.1.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

public int IndexOf(
    object theObject
)

VB.NET

Public Function IndexOf(
    theObject As Object
) As Integer

Parameters

Name	Type	Description
theObject	Object	The persistent object to locate in the collection.

Returns

Type	Description
Int32	The zero-based index of the object in the XPCollection, if found; otherwise, -1.

Remarks

If the XPBaseCollection.LoadingEnabled property is set to true (default value) the collection will be automatically populated with data (if it’s still not populated) when its contents are accessed for the first time.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IndexOf(Object) method.

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-display-a-collection-property-as-a-checked-list-box/CS/DXExample.Module.Win/WinCheckedListBoxPropertyEditor.cs#L35

foreach (object obj in checkedItems) {
    Control.SetItemChecked(dataSource.IndexOf(obj), true);
}

VB.NET

xaf-how-to-display-a-collection-property-as-a-checked-list-box/VB/DXExample.Module.Win/WinCheckedListBoxPropertyEditor.vb#L39

For Each obj As Object In checkedItems
    Control.SetItemChecked(dataSource.IndexOf(obj), True)
Next obj