Filter Mode

FlexGrid provides different modes for displaying filtering options in the column-header menu. The FilterMode property controls the filtering interface for the entire FlexGrid or for an individual GridColumn.

The FilterMode property accepts the following values from the GridFilterMode enumeration:

FilterMode can be configured at the FlexGrid level to apply the same filtering mode to the grid or at the GridColumn level to configure individual columns.

Default Filter

When FilterMode is set to Default, FlexGrid displays a specialized filter interface tailored to the underlying data type and configuration of each column:

• Text columns: Displays a Full Text Filter consisting of an input text box with checkboxes for Match Case and Match Whole Word.

• Numeric and DateTime columns: Display comparison operators and dedicated input controls, including range thresholds (Greater Than, Less Than) and interactive calendar date pickers.

• Boolean (bool) columns: Display dedicated selection options for True and False, allowing users to quickly filter binary values without typing text conditions.

• Enum columns: Automatically inspect the underlying enumeration type and display a selectable list containing all defined enum member values.

• Columns with DataMap: Display a selectable list populated with human-readable display values rather than the underlying raw keys or identifier values.

Default is the standard filtering mode applied automatically when no specific FilterMode is configured on the grid or column.

Value Filter

Set FilterMode to Value to display a checklist containing the distinct values available in the column.

<c1:FlexGrid>
    <c1:FlexGrid.Columns>
        <c1:GridColumn Binding="Country"
                       FilterMode="Value" />
    </c1:FlexGrid.Columns>
</c1:FlexGrid>

The checklist contains values from the column after filters applied to other columns have been taken into account. This allows value selections to be combined across columns.

FilterMode="Value" can also be set on the FlexGrid.

<c1:FlexGrid FilterMode="Value" />

None Filter Mode

Set FilterMode to None to prevent the default filter from being displayed in the column-header menu.

This mode is useful when the application provides another filtering interface or when inline filtering should not be available for a particular column.

<c1:FlexGrid>
    <c1:FlexGrid.Columns>
        <c1:GridColumn Binding="Country"
                       FilterMode="None" />
    </c1:FlexGrid.Columns>
</c1:FlexGrid>

See Also

• Conditional Column Filter