NumericalFilterDescriptor

Updated on Mar 26, 2026

The NumericalFilterDescriptor filters the data by a property of a numerical type.

Properties

• PropertyName—Gets or sets the name of the property that is used to retrieve the value to filter by.
• Value—Gets or sets the value used in the comparisons. This is the right operand of the comparison.
• Operator—Gets or sets the NumericalOperator value that defines the Boolean logic behind the left and right operand comparison.

Adding a NumericalFilterDescriptor

The following example demonstrates how to leave only the objects, whose CityPopulation property is less than 20 000.

Add the DataGrid in XAML

XAML

<Grid xmlns:grid="using:Telerik.UI.Xaml.Controls.Grid"
	 xmlns:dataCore="using:Telerik.Data.Core">
	<grid:RadDataGrid x:Name="grid" VerticalAlignment="Center">
		<grid:RadDataGrid.FilterDescriptors>
			<dataCore:NumericalFilterDescriptor PropertyName="CityPopulation"
											   Operator="IsLessThan"
											   Value="20000"/>
		</grid:RadDataGrid.FilterDescriptors>
	</grid:RadDataGrid>
</Grid>

Populate the DataGrid with Data

C#

public sealed partial class MainPage : Page
{
	public MainPage()
	{
		this.InitializeComponent();

		List<CustomData> data = new List<CustomData>
		{
			new CustomData { Country = "Brazil", City = "Caxias do Sul", CityPopulation = 450000 },
			new CustomData { Country = "Brazil", City = "Fortaleza", CityPopulation = 2500000 },
			new CustomData { Country = "Spain", City = "Malaga", CityPopulation = 569000 },
			new CustomData { Country = "Bulgaria", City = "Koynare", CityPopulation = 5000 },
			new CustomData { Country = "Spain", City = "Valencia", CityPopulation = 810000 },
			new CustomData { Country = "Ghana", City = "Kade", CityPopulation = 16000 },
			new CustomData { Country = "Brazil", City = "Porto Alegre", CityPopulation = 1510000 },
			new CustomData { Country = "Bulgaria", City = "Byala Slatina", CityPopulation = 11000 },
			new CustomData { Country = "Brazil", City = "Joinville", CityPopulation = 515000 },
		};
		this.grid.ItemsSource = data;
	}
}

public class CustomData
{
	public string Country { get; set; }

	public string City { get; set; }

	public double CityPopulation { get; set; }
}

DataGrid after Filtering

See Also

• Text Filter Descriptor
• Boolean Filter Descriptor
• DateTime Filter Descriptor
• Composite Filter Descriptor