CriteriaOperator.Parse(String, Object[]) Method

Converts the specified string, specifying an expression, to its CriteriaOperator equivalent.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Core.v21.2.dll

NuGet Package: DevExpress.Uwp.Controls

Declaration

C#

public static CriteriaOperator Parse(
    string criteria,
    params object[] parameters
)

VB.NET

Public Shared Function Parse(
    criteria As String,
    ParamArray parameters As Object()
) As CriteriaOperator

Parameters

Name	Type	Description
criteria	String	A String value, that is the expression to convert.
parameters	Object[]	The values that are substituted into the expression in place of question mark characters. These parameters can be omitted.

Returns

Type	Description
CriteriaOperator	A CriteriaOperator equivalent to the expression contained in criteria.

Related GitHub Examples

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

asp-net-mvc-grid-custom-binding-and-xpo/CS/XPCustomBindingExample/XPO/XpoBindingHandlers.cs#L24

public void GetDataRowCount(GridViewCustomBindingGetDataRowCountArgs e) {
    CriteriaOperator filter = CriteriaOperator.Parse(e.FilterExpression);
    CriteriaOperator expression = CriteriaOperator.Parse("count");

XPO_how-to-implement-custom-aggregates/CS/XpoCustomAggregate/Form1.cs#L20

XPView xpView = new XPView(session1, typeof(Customer));
xpView.AddProperty("ContactName", CriteriaOperator.Parse("[FirstName] + ' ' + [LastName]"));
xpView.AddProperty("DistinctProducts", CriteriaOperator.Parse("[Orders][].CountDistinct([ProductName])"));

XAF_Non-Persistent-Objects-Reloading-Demo/CS/NonPersistentObjectsDemo.Module/BusinessObjects/LiveSummary.cs#L45

if(pos != null) {
    _Count = Convert.ToInt32(pos.Evaluate(typeof(Order), CriteriaOperator.Parse("Count()"), Criteria));
}

wpf-data-grid-change-drop-down-filter-items/CS/DXGrid_CustomizingFilterDropdown/Window1.xaml.cs#L26

DisplayValue = "Registered in 2008",
EditValue = CriteriaOperator.Parse(string.Format(
"[RegistrationDate] >= #{0}# AND [RegistrationDate] < #{1}#",

winforms-grid-customize-filter-criteria-before-apply/CS/FilterEvent/Form1.cs#L26

    this.GridControl.DataMember = "Orders";
    this.GridView.ActiveFilterCriteria = CriteriaOperator.Parse("Freight > 0");
}

VB.NET

asp-net-mvc-grid-custom-binding-and-xpo/VB/XPCustomBindingExample/XPO/XpoBindingHandlers.vb#L24

Public Sub GetDataRowCount(ByVal e As GridViewCustomBindingGetDataRowCountArgs)
    Dim filter As CriteriaOperator = CriteriaOperator.Parse(e.FilterExpression)
    Dim expression As CriteriaOperator = CriteriaOperator.Parse("count")

XPO_how-to-implement-custom-aggregates/VB/XpoCustomAggregate/Form1.vb#L21

Dim xpView As New XPView(session1, GetType(Customer))
xpView.AddProperty("ContactName", CriteriaOperator.Parse("[FirstName] + ' ' + [LastName]"))
xpView.AddProperty("DistinctProducts", CriteriaOperator.Parse("[Orders][].CountDistinct([ProductName])"))

XAF_Non-Persistent-Objects-Reloading-Demo/VB/NonPersistentObjectsDemo.Module/BusinessObjects/LiveSummary.vb#L74

If pos IsNot Nothing Then
    _Count = Convert.ToInt32(pos.Evaluate(GetType(Order), CriteriaOperator.Parse("Count()"), Criteria))
End If

wpf-data-grid-change-drop-down-filter-items/VB/DXGrid_CustomizingFilterDropdown/Window1.xaml.vb#L22

filterItems.Add(New CustomComboBoxItem() With {.DisplayValue = "(All)", .EditValue = New CustomComboBoxItem()})
filterItems.Add(New CustomComboBoxItem() With {.DisplayValue = "Registered in 2008", .EditValue = CriteriaOperator.Parse(String.Format("[RegistrationDate] >= #{0}# AND [RegistrationDate] < #{1}#", New DateTime(2008, 1, 1), New DateTime(2009, 1, 1)))})
filterItems.Add(New CustomComboBoxItem() With {.DisplayValue = "Registered in 2009", .EditValue = CriteriaOperator.Parse(String.Format("[RegistrationDate] >= #{0}# AND [RegistrationDate] < #{1}#", New DateTime(2009, 1, 1), New DateTime(2010, 1, 1)))})

winforms-grid-customize-filter-criteria-before-apply/VB/FilterEvent/Form1.vb#L23

    GridControl.DataMember = "Orders"
    GridView.ActiveFilterCriteria = CriteriaOperator.Parse("Freight > 0")
End Sub