DataFilterCondition Enum

Lists the values that specify comparison operators used to filter data points within a series.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v23.2.dll

NuGet Package: DevExpress.Charts

Declaration

C#

[ResourceFinder(typeof(XtraChartsResFinder), "PropertyNamesRes")]
public enum DataFilterCondition

VB.NET

<ResourceFinder(GetType(XtraChartsResFinder), "PropertyNamesRes")>
Public Enum DataFilterCondition

Members

Name	Description
Equal	Specifies the “equal to” comparison operator.
GreaterThan	Specifies the “greater than” comparison operator.
GreaterThanOrEqual	Specifies the “greater than or equal to” comparison operator.
LessThan	Specifies the “less than” comparison operator.
LessThanOrEqual	Specifies the “less than or equal to” comparison operator.
NotEqual	Specifies the “not equal to” comparison operator.

Related API Members

The following properties accept/return DataFilterCondition values:

Library	Related API Members
Cross-Platform Class Library	DataFilter.Condition
	SeriesPointFilter.Condition
WinForms Controls	DataFilterModel.Condition
	SeriesPointFilterModel.Condition

Remarks

The values listed by this enumeration are used to set the DataFilter.Condition property.

Example

The following example demonstrates how to create DataFilter objects, and apply their conditions to a series at runtime. For more information, refer to Filtering Data.

For this example to work correctly, a chart should contain at least one series, which is bound to the “Categories” data table in the Northwind Traders database (nwind.mdb file shipped with the XtraCharts demo). Please refer to the following tutorial to see how to bind a series to data: How to: Bind Individual Chart Series to Data (Runtime Sample).

The code below creates and applies the following filter to series data: “CategoryID = 1 or CategoryID = 4 or CategoryID = 7”

C#

using DevExpress.XtraCharts;
// ...

// Create new data filters and specify conditions for them.
DataFilter dataFilter1 = new DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 1);
DataFilter dataFilter2 = new DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 4);
DataFilter dataFilter3 = new DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 7);

// Obtain the first series of the chart.
Series series1 = chartControl1.Series[0];

// Set the logical operator used to combine individual data filter conditions for this series.
series1.DataFiltersConjunctionMode = ConjunctionTypes.Or;

// Remove all other filters.
series1.DataFilters.Clear();

// Add new filters to apply to the series data.
series1.DataFilters.AddRange(new DataFilter[] {dataFilter1, dataFilter2, dataFilter3});

VB.NET

Imports DevExpress.XtraCharts
' ...

' Create new data filters and specify conditions for them.
Dim dataFilter1 As New DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 1)
Dim dataFilter2 As New DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 4)
Dim dataFilter3 As New DataFilter("CategoryID", "System.Int32", DataFilterCondition.Equal, 7)

' Obtain the first series of the chart.
Dim series1 As Series = chartControl1.Series(0)

' Set the logical operator used to combine individual data filter conditions for this series.
series1.DataFiltersConjunctionMode = ConjunctionTypes.Or

' Remove all other filters.
series1.DataFilters.Clear()

' Add new filters to apply to the series data.
series1.DataFilters.AddRange(New DataFilter() {dataFilter1, dataFilter2, dataFilter3})