'Declaration Public Enum ComparisonOperatorFlags Inherits System.Enum
public enum ComparisonOperatorFlags : System.Enum
Member | Description |
---|---|
All | All operators. |
Bottom | Corresponds to the ComparisonOperatorBottom. |
BottomPercentile | Corresponds to the ComparisonOperatorBottomPercentile. |
Contains | Corresponds to the ComparisonOperatorContains. |
DoesNotContain | Corresponds to the ComparisonOperatorDoesNotContain. |
DoesNotEndWith | Corresponds to the ComparisonOperatorDoesNotEndWith. |
DoesNotMatch | Corresponds to the ComparisonOperatorDoesNotMatch. |
DoesNotStartWith | Corresponds to the ComparisonOperatorDoesNotStartWith. |
EndsWith | Corresponds to the ComparisonOperatorEndsWith. |
Equals | Corresponds to the ComparisonOperatorEquals. |
GreaterThan | Corresponds to the ComparisonOperatorGreaterThan. |
GreaterThanOrEqualsTo | Corresponds to the ComparisonOperatorGreaterThanOrEqualTo. |
In | Corresponds to the ComparisonOperatorIn. |
LessThan | Corresponds to the ComparisonOperatorLessThan. |
LessThanOrEqualsTo | Corresponds to the ComparisonOperatorLessThanOrEqualTo. |
Like | Corresponds to the ComparisonOperatorLike. |
Match | Corresponds to the ComparisonOperatorMatch. |
None | None. |
NotEquals | Corresponds to the ComparisonOperatorNotEquals. |
NotIn | Corresponds to the ComparisonOperatorNotIn. |
NotLike | Corresponds to the ComparisonOperatorNotLike. |
StartsWith | Corresponds to the ComparisonOperatorStartsWith. |
Top | Corresponds to the ComparisonOperatorTop. |
TopPercentile | Corresponds to the ComparisonOperatorTopPercentile. |
ComparisonOperatorFlags is a flagged enum with values that mirror the values of non-flagged ComparisonOperator enum. This is used to specify properties like data presenter's FieldSettings's FilterOperatorDropDownItems.
Imports Infragistics.Windows Imports Infragistics.Windows.Controls Imports Infragistics.Windows.Editors Imports Infragistics.Windows.DataPresenter Imports Infragistics.Windows.DataPresenter.Events Private Sub Dp_FieldLayoutInitialized(ByVal sender As Object, ByVal e As FieldLayoutInitializedEventArgs) ' Enable the filter-record. e.FieldLayout.FieldSettings.AllowRecordFiltering = True ' FilterStringComparisonType controls whether to perform case-sensitive or ' case-insensitive string comparisons for filtering purposes. e.FieldLayout.FieldSettings.FilterStringComparisonType = FieldSortComparisonType.CaseInsensitive ' The following for loop sets FilterOperatorDefaultValue, FilterOperatorDropDownItems ' and FilterOperandUIType properties on each field based on the field's data type. Dim field As Field For Each field In e.FieldLayout.Fields Dim dataType As Type = field.DataType If dataType Is GetType(String) Then ' For string fields, pre-select StartsWith operator. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.StartsWith ' For operator drop-down, limit the available options to the following. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals _ Or ComparisonOperatorFlags.StartsWith _ Or ComparisonOperatorFlags.Contains _ Or ComparisonOperatorFlags.Like ' For the operand input, use a text-box. e.FieldLayout.FieldSettings.FilterOperandUIType = FilterOperandUIType.TextBox ElseIf Utilities.IsNumericType(dataType) OrElse dataType Is GetType(DateTime) Then ' For numeric and date fields, pre-select Equals operator. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.Equals ' For operator drop-down, limit the available options to the following. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals _ Or ComparisonOperatorFlags.LessThan _ Or ComparisonOperatorFlags.LessThanOrEqualsTo _ Or ComparisonOperatorFlags.GreaterThan _ Or ComparisonOperatorFlags.GreaterThanOrEqualsTo ' For the operand input, use the same editor as rest of the cells in the field ' are using. By default numeric field cells use numeric editor and date field ' cells use date-time editor. e.FieldLayout.FieldSettings.FilterOperandUIType = FilterOperandUIType.UseFieldEditor ElseIf dataType Is GetType(Boolean) Then ' For boolean fields, set the default operator to Equals. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.Equals ' Also just allow Equals operator. This will effectively hide the operator ' drop-down. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals ' For the operand input, use drop-down list. field.Settings.FilterOperandUIType = FilterOperandUIType.DropDownList End If Next End Sub
using Infragistics.Windows; using Infragistics.Windows.Controls; using Infragistics.Windows.Editors; using Infragistics.Windows.DataPresenter; using Infragistics.Windows.DataPresenter.Events; private void dp_FieldLayoutInitialized( object sender, FieldLayoutInitializedEventArgs e ) { // Enable the filter-record. e.FieldLayout.FieldSettings.AllowRecordFiltering = true; // FilterStringComparisonType controls whether to perform case-sensitive or // case-insensitive string comparisons for filtering purposes. e.FieldLayout.FieldSettings.FilterStringComparisonType = FieldSortComparisonType.CaseInsensitive; // The following for loop sets FilterOperatorDefaultValue, FilterOperatorDropDownItems // and FilterOperandUIType properties on each field based on the field's data type. foreach ( Field field in e.FieldLayout.Fields ) { Type dataType = field.DataType; if ( typeof( string ) == dataType ) { // For string fields, pre-select StartsWith operator. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.StartsWith; // For operator drop-down, limit the available options to the following. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals | ComparisonOperatorFlags.StartsWith | ComparisonOperatorFlags.Contains | ComparisonOperatorFlags.Like; // For the operand input, use a text-box. e.FieldLayout.FieldSettings.FilterOperandUIType = FilterOperandUIType.TextBox; } else if ( Utilities.IsNumericType( dataType ) || typeof( DateTime ) == dataType ) { // For numeric and date fields, pre-select Equals operator. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.Equals; // For operator drop-down, limit the available options to the following. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals | ComparisonOperatorFlags.LessThan | ComparisonOperatorFlags.LessThanOrEqualsTo | ComparisonOperatorFlags.GreaterThan | ComparisonOperatorFlags.GreaterThanOrEqualsTo; // For the operand input, use the same editor as rest of the cells in the field // are using. By default numeric field cells use numeric editor and date field // cells use date-time editor. e.FieldLayout.FieldSettings.FilterOperandUIType = FilterOperandUIType.UseFieldEditor; } else if ( typeof( bool ) == dataType ) { // For boolean fields, set the default operator to Equals. field.Settings.FilterOperatorDefaultValue = ComparisonOperator.Equals; // Also just allow Equals operator. This will effectively hide the operator // drop-down. field.Settings.FilterOperatorDropDownItems = ComparisonOperatorFlags.Equals; // For the operand input, use drop-down list. field.Settings.FilterOperandUIType = FilterOperandUIType.DropDownList; } } }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2