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.NET Framework 4.5.2+

TimePeriodConditionalFormatting Interface

Represents a "date occurring…" conditional formatting rule.

Namespace: DevExpress.Spreadsheet

Assembly: DevExpress.Spreadsheet.v23.1.Core.dll


public interface TimePeriodConditionalFormatting :


The conditional formatting rule specified by the TimePeriodConditionalFormatting object highlights cells containing dates in the specified time period. The Worksheet.ConditionalFormattings property returns the ConditionalFormattingCollection collection that stores all conditional formatting rules specified on a worksheet. Use the methods of the ConditionalFormattingCollection object to apply (the ConditionalFormattingCollection.AddTimePeriodConditionalFormatting method) or remove (the ConditionalFormattingCollection.Remove method) the conditional format.


This example demonstrates how to apply a "date occurring…" conditional formatting rule.

  1. To create a new conditional formatting rule represented by the TimePeriodConditionalFormatting object, access the collection of conditional formats from the Worksheet.ConditionalFormattings property and call the ConditionalFormattingCollection.AddTimePeriodConditionalFormatting method. Pass the following parameters:

    • A CellRange object that defines a range of cells to which the rule is applied.
    • A time period to be highlighted. This parameter is specified by one of the ConditionalFormattingTimePeriod enumeration values.
  2. Specify formatting options to be applied to cells if the condition is true using the ISupportsFormatting.Formatting property of the TimePeriodConditionalFormatting object.


Transparency is not supported in conditional formatting.

To remove the TimePeriodConditionalFormatting object, use the ConditionalFormattingCollection.Remove, ConditionalFormattingCollection.RemoveAt or ConditionalFormattingCollection.Clear methods.

View Example

// Create the rule to highlight today's dates in cells B2 through B6.
TimePeriodConditionalFormatting cfRule =
worksheet.ConditionalFormattings.AddTimePeriodConditionalFormatting(worksheet.Range["$B$2:$B$6"], ConditionalFormattingTimePeriod.Today);
// Specify formatting options to be applied to cells if the condition is true.
// Set the background color to pink.
cfRule.Formatting.Fill.BackgroundColor = Color.FromArgb(255, 0xF2, 0xAE, 0xE3);
See Also