## FieldFormula class


Implements the = (formula) field. To learn more, visit the [Working with Fields](https://docs.aspose.com/words/cpp/working-with-fields/) documentation article.

```cpp
class FieldFormula : public Aspose::Words::Fields::Field
```

## Methods

| Method | Description |
| --- | --- |
| [get_DisplayResult](../field/get_displayresult/)() | Gets the text that represents the displayed field result. |
| [get_End](../field/get_end/)() const | Gets the node that represents the field end. |
| [get_FieldEnd](../field/get_fieldend/)() const | Gets the node that represents the field end. |
| [get_FieldStart](../field/get_fieldstart/)() const | Gets the node that represents the start of the field. |
| [get_Format](../field/get_format/)() | Gets a [FieldFormat](../fieldformat/) object that provides typed access to field's formatting. |
| [get_IsDirty](../field/get_isdirty/)() | Gets or sets whether the current result of the field is no longer correct (stale) due to other modifications made to the document. |
| [get_IsLocked](../field/get_islocked/)() | Gets or sets whether the field is locked (should not recalculate its result). |
| [get_LocaleId](../field/get_localeid/)() | Gets or sets the LCID of the field. |
| [get_Result](../field/get_result/)() | Gets or sets text that is between the field separator and field end. |
| [get_Separator](../field/get_separator/)() | Gets the node that represents the field separator. Can be **null**. |
| [get_Start](../field/get_start/)() const | Gets the node that represents the start of the field. |
| virtual [get_Type](../field/get_type/)() const | Gets the Microsoft Word field type. |
| [GetFieldCode](../field/getfieldcode/)() | Returns text between field start and field separator (or field end if there is no separator). Both field code and field result of child fields are included. |
| [GetFieldCode](../field/getfieldcode/)(bool) | Returns text between field start and field separator (or field end if there is no separator). |
| [GetType](./gettype/)() const override |  |
| [Is](./is/)(const System::TypeInfo\&) const override |  |
| virtual [Remove](../field/remove/)() | Removes the field from the document. Returns a node right after the field. If the field's end is the last child of its parent node, returns its parent paragraph. If the field is already removed, returns **null**. |
| [set_IsDirty](../field/set_isdirty/)(bool) | Setter for [Aspose::Words::Fields::Field::get_IsDirty](../field/get_isdirty/). |
| [set_IsLocked](../field/set_islocked/)(bool) | Setter for [Aspose::Words::Fields::Field::get_IsLocked](../field/get_islocked/). |
| [set_LocaleId](../field/set_localeid/)(int32_t) | Setter for [Aspose::Words::Fields::Field::get_LocaleId](../field/get_localeid/). |
| [set_Result](../field/set_result/)(const System::String\&) | Setter for [Aspose::Words::Fields::Field::get_Result](../field/get_result/). |
| static [Type](./type/)() |  |
| [Unlink](../field/unlink/)() | Performs the field unlink. |
| [Update](../field/update/)() | Performs the field update. Throws if the field is being updated already. |
| [Update](../field/update/)(bool) | Performs a field update. Throws if the field is being updated already. |

## Examples



Shows how to use the formula field to display the result of an equation. 
```cpp
auto doc = System::MakeObject<Aspose::Words::Document>();

// Use a field builder to construct a mathematical equation,
// then create a formula field to display the equation's result in the document.
auto fieldBuilder = System::MakeObject<Aspose::Words::Fields::FieldBuilder>(FieldType::FieldFormula);
fieldBuilder->AddArgument(2);
fieldBuilder->AddArgument(u"*");
fieldBuilder->AddArgument(5);

auto field = System::ExplicitCast<Aspose::Words::Fields::FieldFormula>(fieldBuilder->BuildAndInsert(doc->get_FirstSection()->get_Body()->get_FirstParagraph()));
field->Update();

ASSERT_EQ(u" = 2 * 5 ", field->GetFieldCode());
ASSERT_EQ(u"10", field->get_Result());

doc->UpdateFields();
doc->Save(get_ArtifactsDir() + u"Field.FORMULA.docx");
```

## See Also

* Class [Field](../field/)
* Namespace [Aspose::Words::Fields](../)
* Library [Aspose.Words for C++](../../)