ComparisonOperatorFlags 列挙体

ComparisonOperator 列挙型の値をミラーする列挙型にフラグを付けます。これは、データ プレゼンターの FieldSettings の FilterOperatorDropDownItems などのプロパティを指定するのに使用されます。

シンタックス

Visual Basic

'宣言
 
Public Enum ComparisonOperatorFlags 
   Inherits System.Enum

C#

public enum ComparisonOperatorFlags : System.Enum 

メンバ

メンバ	解説
All	すべての演算子。
Bottom	ComparisonOperatorBottom に対応します。
BottomPercentile	ComparisonOperatorBottomPercentile に対応します。
Contains	ComparisonOperatorContains に対応します。
DoesNotContain	ComparisonOperatorDoesNotContain に対応します。
DoesNotEndWith	ComparisonOperatorDoesNotEndWith に対応します。
DoesNotMatch	ComparisonOperatorDoesNotMatch に対応します。
DoesNotStartWith	ComparisonOperatorDoesNotStartWith に対応します。
EndsWith	ComparisonOperatorEndsWith に対応します。
Equals	ComparisonOperatorEquals に対応します。
GreaterThan	ComparisonOperatorGreaterThan に対応します。
GreaterThanOrEqualsTo	ComparisonOperatorGreaterThanOrEqualTo に対応します。
In	ComparisonOperatorIn に相対します。
LessThan	ComparisonOperatorLessThan に対応します。
LessThanOrEqualsTo	ComparisonOperatorLessThanOrEqualTo に対応します。
Like	ComparisonOperatorLike に対応します。
Match	ComparisonOperatorMatch に対応します。
None	なし。
NotEquals	ComparisonOperatorNotEquals に対応します。
NotIn	ComparisonOperatorNotIn に相対します。
NotLike	ComparisonOperatorNotLike に対応します。
StartsWith	ComparisonOperatorStartsWith に対応します。
Top	ComparisonOperatorTop に対応します。
TopPercentile	ComparisonOperatorTopPercentile に対応します。

解説

ComparisonOperatorFlags は、フラグが付いていない ComparisonOperator 列挙型の値をミラーする値でフラグが付けられた列挙型です。これは、データ プレゼンターの FieldSettings の FilterOperatorDropDownItems などのプロパティを指定するのに使用されます。

使用例

Visual Basic

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

C#

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;
				}
			}
		}

XAML

        <igDP:XamDataGrid x:Name="_dp" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

            <igDP:XamDataGrid.FieldSettings>
                <!--Set AllowRecordFiltering to enable filter-record.-->
                <igDP:FieldSettings AllowRecordFiltering="true" />
            </igDP:XamDataGrid.FieldSettings>
            
            <igDP:XamDataGrid.FieldLayouts>
                <igDP:FieldLayout IsDefault="true">
                    <igDP:FieldLayout.Fields>

                        <!--For Country field, use settings appropriate for string data types.
                        * pre-select StartsWith operator by setting FilterOperatorDefaultValue
                        * limit operator drop-down items to Equals, StartsWith, Contains and Like
                        * Use TextBox for the operand input by setting FilterOperandUIType to TextBox
                        -->
                        <igDP:Field Name="Country">
                            <igDP:Field.Settings>
                                <igDP:FieldSettings
                                        FilterOperatorDefaultValue="StartsWith"
                                        FilterOperatorDropDownItems="Equals, StartsWith, Contains, Like"
                                        FilterOperandUIType="TextBox"
                                    />                                        
                            </igDP:Field.Settings>    
                        </igDP:Field>

                        <!--For Price field, use settings appropriate for numeric data types.
                        * pre-select Equals operator by setting FilterOperatorDefaultValue
                        * limit operator drop-down items to Equals, StartsWith, Contains and Like
                        * Use the same editor as the field cells by setting FilterOperandUIType to UseFieldEditor
                        -->
                        <igDP:Field Name="Price">
                            <igDP:Field.Settings>
                                <igDP:FieldSettings
                                        FilterOperatorDefaultValue="Equals"
                                        FilterOperatorDropDownItems="Equals, LessThan, LessThanOrEqualsTo, GreaterThan, GreaterThanOrEqualsTo"
                                        FilterOperandUIType="UseFieldEditor"
                                    />
                            </igDP:Field.Settings>
                        </igDP:Field>

                        <!--For IsChecked field, use settings appropriate for boolean data type.
                        * pre-select Equals operator by setting FilterOperatorDefaultValue
                        * Hide the operator drop-down by setting FilterOperatorDropDownItems to a single value
                        * Use drop-down list for the operand input by setting FilterOperandUIType to DropDownList
                        -->
                        <igDP:Field Name="IsChecked">
                            <igDP:Field.Settings>
                                <igDP:FieldSettings
                                        FilterOperatorDefaultValue="Equals"
                                        FilterOperatorDropDownItems="Equals"
                                        FilterOperandUIType="DropDownList"
                                    />
                            </igDP:Field.Settings>
                        </igDP:Field>
                        
                    </igDP:FieldLayout.Fields>
                </igDP:FieldLayout>
            </igDP:XamDataGrid.FieldLayouts>
            
        </igDP:XamDataGrid>