Spread Windows Forms 7.0 Product Documentation
Understanding Enhanced Row Filtering
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Spread Windows Forms 7.0 Product Documentation > Developer's Guide > Customizing Row or Column Interaction > Managing Filtering of Rows of User Data > Customizing Enhanced Filtering > Understanding Enhanced Row Filtering

Glossary Item Box

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.

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.

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.

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

Filter Off Indicator

Appearance of header cell with no row filtering

Filter Indicator All

Appearance of header cell with row filtering allowed but no rows filtered

Filter On Indicator

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.

Using Code

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

Example

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.

See Also

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