officefileapi-devexpress-dot-spreadsheet-dot-pivotfield-19772807.md
Gets or sets the formula for the calculated field.
Namespace : DevExpress.Spreadsheet
Assembly : DevExpress.Spreadsheet.v25.2.Core.dll
NuGet Package : DevExpress.Spreadsheet.Core
string Formula { get; set; }
Property Formula As String
| Type | Description |
|---|---|
| String |
A String value that is the calculated field’s formula.
|
Use the Formula property to modify the formula of the existing calculated field. To add a calculated field to a pivot table, use the PivotCalculatedFieldCollection.Add method of the PivotTable.CalculatedFields collection.
Worksheet worksheet = workbook.Worksheets["Report1"];
workbook.Worksheets.ActiveWorksheet = worksheet;
// Access the pivot table by its name in the collection.
PivotTable pivotTable = worksheet.PivotTables["PivotTable1"];
// Create a calculated field based on data in the "Sales" field.
pivotTable.CalculatedFields.Add("=Sales*10%", "Sales Tax Rate 10");
// Access the calculated field by its name in the collection.
PivotField field = pivotTable.CalculatedFields["Sales Tax Rate 10"];
//Change the formula for the calculated field.
field.Formula = "=Sales*15%";
//Change the calculated field name.
field.Name = "Sales Tax Rate 15";
//Add the calculated field to the data area and specify the custom field name.
PivotDataField dataField = pivotTable.DataFields.Add(field, "Total Tax");
// Specify the number format for the data field.
dataField.NumberFormat = @"_([$$-409]* #,##0.00_);_([$$-409]* (#,##0.00);_([$$-409]* "" - ""??_);_(@_)";
Dim worksheet As Worksheet = workbook.Worksheets("Report1")
workbook.Worksheets.ActiveWorksheet = worksheet
' Access the pivot table by its name in the collection.
Dim pivotTable As PivotTable = worksheet.PivotTables("PivotTable1")
' Create a calculated field based on data in the "Sales" field.
pivotTable.CalculatedFields.Add("=Sales*10%", "Sales Tax Rate 10")
' Access the calculated field by its name in the collection.
Dim field As PivotField = pivotTable.CalculatedFields("Sales Tax Rate 10")
'Change the formula for the calculated field.
field.Formula = "=Sales*15%"
'Change the calculated field name.
field.Name = "Sales Tax Rate 15"
'Add the calculated field to the data area and specify the custom field name.
Dim dataField As PivotDataField = pivotTable.DataFields.Add(field, "Total Tax")
' Specify the number format for the data field.
dataField.NumberFormat = "_([$$-409]* #,##0.00_);_([$$-409]* (#,##0.00);_([$$-409]* "" - ""??_);_(@_)"
For the pivot fields that originate from the source data, the Formula property returns an empty string.
The following code snippets (auto-collected from DevExpress Examples) contain references to the Formula property.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
//Change the formula for the calculated field.
field.Formula = "=Sales*15%";
//Change the calculated field name.
//Change the formula for the calculated field.
field.Formula = "=Sales*15%";
//Change the calculated field name.
//Change the formula for the calculated field.
field.Formula = "=Sales*15%";
//Change the calculated field name.
'Change the formula for the calculated field.
field.Formula = "=Sales*15%"
'Change the calculated field name.
'Change the formula for the calculated field.
field.Formula = "=Sales*15%"
'Change the calculated field name.
'Change the formula for the calculated field.
field.Formula = "=Sales*15%"
'Change the calculated field name.
See Also