Customizing Enhanced Filtering

In This Topic

When the control has enhanced filtering turned on, the user can drop-down a list of available filters to apply to the data, as shown in the following figure.

Customized enhanced filtering

Filters list

The default filter that is displayed depends on the data in the column. The filter can be a number, text, date, or color filter.

The filters are described in the following table.

Filter Type	Description
Number Filters
Equals	Values in rows are equal to condition
Does Not Equal	Values in rows do not equal condition
Greater Than	Values in rows are greater than condition
Greater Than Or Equal To	Values in rows are greater than or equal to condition
Less Than	Values in rows are less than condition
Less Than Or Equal To	Values in rows are less than or equal to condition
Between	Values in rows are greater than one condition and less than another condition
Top 10	Values in the rows with the ten highest values
Above Average	Values in the rows that are above the average of the values in all the rows
Below Average	Values in the rows that are below the average of the values in all the rows
Custom Filter	Values in rows that meet the conditions of a custom filter
Text Filters
Equals	Values in rows equal the condition
Does Not Equal	Values in rows do not equal the condition
Begins With	Values in rows begin with the specified characters
Ends With	Values in rows end with the specified characters
Contains	Values in rows contain the specified characters
Does Not Contain	Values in rows do not contain the specified characters
Custom Filter	Values in rows that meet the conditions of a custom filter
Date Filters
Equals	Values in rows equal the condition
Before	Values in rows are dates before the condition
After	Values in rows are dates after the condition
Between	Values in rows are dates between two specified dates for the condition
Tomorrow	Values in rows are tomorrow's date
Today	Values in rows are today's date
Yesterday	Values in rows are yesterday's date
Next Week	Values in rows are during next week
This Week	Values in rows are during current week
Last Week	Values in rows are during last week
Next Month	Values in rows are during next month
This Month	Values in rows are during current month
Last Month	Values in rows are during last month
Next Quarter	Values in rows are during next quarter
This Quarter	Values in rows are during current quarter
Last Quarter	Values in rows are during last quarter
Next Year	Values in rows are during next year
This Year	Values in rows are during current year
Last Year	Values in rows are during last year
Year to Date	Values in rows are during current year to present date
All Dates in the Period	Values in rows are within a specified period
Custom Filter	Values in rows that meet the conditions of a custom filter

Users can specify wildcards in conditions. The "?" character represents any single character. The "*" character represents any series of characters.

When the user chooses a filter, the control either filters the data to display only the items that match the filter criteria, or the control displays the rows that meet the criteria with one appearance, and the rows that do not meet the criteria with another appearance. For information about setting the styles for rows, see Setting the Appearance of Filtered Rows.

Filter indicators

In the control, columns with filters display filter indicators, which indicate whether a filter has been applied, as shown in the following table.

Row Filtering Indicator	Description
	Appearance of header cell with no row filtering
	Appearance of header cell with row filtering allowed but no rows filtered
	Appearance of header cell with row filtering allowed and some rows filtered

If you prefer, you can have the control display a filter bar that allows the user to choose the filter to apply. The filter bar is displayed in the control at all times, and choosing a filter from the filter bar makes the filter go into effect immediately. The following figure illustrates a control with a filter bar.

Control with a filter bar

Using Code

Set the AllowAutoFilter property.
Set the AutoFilterMode property.

Example

The following example creates an enhanced filter in the first three columns. Add different types of data to see the various filter options.

C#	Copy Code
fpSpread1.Sheets[0].Columns[0, 2].AllowAutoFilter = true; fpSpread1.Sheets[0].AutoFilterMode = FarPoint.Win.Spread.AutoFilterMode.EnhancedContextMenu;

VB	Copy Code
FpSpread1.Sheets(0).Columns(0, 2).AllowAutoFilter = True FpSpread1.Sheets(0).AutoFilterMode = FarPoint.Win.Spread.AutoFilterMode.EnhancedContextMenu

You can customize the appearance of the filter bar, as described in Customizing the Filter Bar.