PagedAsyncSource.GetUniqueValues Event

Allows getting unique values.

Namespace: DevExpress.Xpf.Data

Assembly: DevExpress.Xpf.Core.v19.1.dll

Declaration

C#

public event EventHandler<GetUniqueValuesAsyncEventArgs> GetUniqueValues

VB.NET

Public Event GetUniqueValues As EventHandler(Of GetUniqueValuesAsyncEventArgs)

Event Data

The GetUniqueValues event's data class is GetUniqueValuesAsyncEventArgs. The following properties provide information specific to this event:

Property	Description
Filter	Gets the GridControl‘s filtering. Inherited from GetUniqueValuesEventArgsBase.
PropertyName	Gets the property name. Inherited from GetUniqueValuesEventArgsBase.
Result	Gets or sets the result of the get unique values operation.

Remarks

Refer to the Add Filtering topic to learn more.

Related GitHub Examples

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

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#

wpf-data-grid-bind-to-pagedasyncsource/CS/MainWindow.xaml.cs#L26

source.GetUniqueValues += (o, e) => {
    if(e.PropertyName == "Priority") {

VB.NET

wpf-data-grid-bind-to-pagedasyncsource/VB/MainWindow.xaml.vb#L19

AddHandler source.FetchPage, Sub(o, e) e.Result = FetchRowsAsync(e)
AddHandler source.GetUniqueValues, Sub(o, e)
    If Equals(e.PropertyName, "Priority") Then