FetchEventArgsBase.Filter Property

Gets the GridControl filtering.

Namespace: DevExpress.Xpf.Data

Assembly: DevExpress.Xpf.Core.v24.1.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public CriteriaOperator Filter { get; }

VB.NET

Public ReadOnly Property Filter As CriteriaOperator

Property Value

Type	Description
CriteriaOperator	The GridControl filtering.

Remarks

Refer to the following help topic for more information: FetchRows.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Filter 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#

how-to-bind-wpf-grid-to-data/CS/CodeBehind/EFCore/InfiniteAsyncSource/MainWindow.xaml.cs#L36

    .SortBy(e.SortOrder, defaultUniqueSortPropertyName: nameof(Issue.Id))
    .Where(MakeFilterExpression(e.Filter));
return queryable.Skip(e.Skip).Take(e.Take ?? 100).ToArray();

wpf-data-grid-implement-crud-operations/CS/CodeBehind/EFCore/InfiniteAsyncSource/MainWindow.xaml.cs#L36

    .SortBy(e.SortOrder, defaultUniqueSortPropertyName: nameof(Issue.Id))
    .Where(MakeFilterExpression(e.Filter));
return queryable.Skip(e.Skip).Take(e.Take ?? 100).ToArray();

wpf-autosuggestedit-use-grid-with-infiniteasyncsource-as-drop-down/CS/MainWindow.xaml.cs#L18

static FetchRowsResult FetchRows(FetchRowsAsyncEventArgs e) {
    if (ReferenceEquals(e.Filter, null))
        return new FetchRowsResult(null, false);

wpf-data-grid-bind-to-pagedasyncsource/CS/PagedAsyncSourceSample/MainWindow.xaml.cs#L44

IssueSortOrder sortOrder = GetIssueSortOrder(e);
IssueFilter filter = MakeIssueFilter(e.Filter);

wpf-data-grid-use-skip-tokens-to-optimize-paging-EF/CS/MainWindow.xaml.cs#L29

static FetchRowsResult FetchRows(FetchRowsAsyncEventArgs e) {
    var filterWithSkipToken = CriteriaOperator.And(e.Filter, (CriteriaOperator)e.SkipToken);

VB.NET

how-to-bind-wpf-grid-to-data/VB/CodeBehind/EFCore/InfiniteAsyncSource/MainWindow.xaml.vb#L31

Dim context = New IssuesContext()
Dim queryable = context.Issues.AsNoTracking().SortBy(e.SortOrder, defaultUniqueSortPropertyName:=NameOf(Issue.Id)).Where(MakeFilterExpression(e.Filter))
Return queryable.Skip(e.Skip).Take(If(e.Take, 100)).ToArray()

wpf-autosuggestedit-use-grid-with-infiniteasyncsource-as-drop-down/VB/MainWindow.xaml.vb#L20

Private Shared Function FetchRows(ByVal e As FetchRowsAsyncEventArgs) As FetchRowsResult
    If ReferenceEquals(e.Filter, Nothing) Then
        Return New FetchRowsResult(Nothing, False)

wpf-data-grid-bind-to-pagedasyncsource/VB/PagedAsyncSourceSample/MainWindow.xaml.vb#L33

Dim sortOrder As IssueSortOrder = GetIssueSortOrder(e)
Dim filter As IssueFilter = MakeIssueFilter(e.Filter)
Dim issues = Await GetIssuesAsync(page:=e.Skip \ e.Take, pageSize:=e.Take, sortOrder:=sortOrder, filter:=filter)

wpf-data-grid-use-skip-tokens-to-optimize-paging-EF/VB/MainWindow.xaml.vb#L24

Private Shared Function FetchRows(ByVal e As FetchRowsAsyncEventArgs) As FetchRowsResult
    Dim filterWithSkipToken = CriteriaOperator.And(e.Filter, CType(e.SkipToken, CriteriaOperator))
    Dim converter = New GridFilterCriteriaToExpressionConverter(Of IssueData)()

wpf-data-grid-bind-to-custom-service-with-restrictions/VB/MainWindow.xaml.vb#L35

Dim sortOrder As IssueSortOrder = GetIssueSortOrder(e)
Dim filter As IssueFilter = MakeIssueFilter(e.Filter)
Dim take As Integer = If(e.Take, 30)