# RibbonFormulaTab Class

> The RibbonFormulaTab class represents a Windows Forms ribbon tab for editing formulas in table cells. To modify a formula, a TextControl must be connected with the Ribbon which hosts the RibbonFormulaTab.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Reference
- **Kind:** Class
- **Introduced:** 26.0
- **Namespace:** `TXTextControl.Windows.Forms.Ribbon`
- **Package:** `TXTextControl.TextControl.WinForms.SDK` (assembly `TXTextControl.Windows.Forms.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.Windows.Forms.dll` from the setup
- **Inherits:** `System.Windows.Forms.TabPage` › `TXTextControl.Windows.Forms.Ribbon.RibbonTab`
- **Path:** TX Text Control .NET for Windows Forms > Reference > TXTextControl.Windows.Forms.Ribbon > RibbonFormulaTab Class
- **923 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/llms-full.txt

---

### Description

The RibbonFormulaTab class represents a Windows Forms ribbon tab for editing formulas in table cells. To modify a formula, a [TextControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/llms-full.txt) must be connected with the [Ribbon](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbon/llms-full.txt) which hosts the RibbonFormulaTab.

### Syntax

```csharp
public class RibbonFormulaTab : RibbonTab
```

```vbnet
Public Class RibbonFormulaTab
    Inherits RibbonTab
```

### Examples

The following example creates a Ribbon Formula Tab instance and configures its key tip setting for a document workflow.

```csharp
using TXTextControl.Windows.Forms.Ribbon.RibbonFormulaTab ribbonFormulaTab = new();
ribbonFormulaTab.KeyTip = "Quarterly report";
```

```vbnet
Dim ribbonFormulaTab As New TXTextControl.Windows.Forms.Ribbon.RibbonFormulaTab()
ribbonFormulaTab.KeyTip = "Quarterly report"
```

---

## In This Section

- [RibbonFormulaTab Constructor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/constructor/llms-full.txt): Initializes a new instance of the RibbonFormulaTab class.
- [RibbonFormulaTab.FindItem Method](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/finditem-method/llms-full.txt): Finds a control that has the provided RibbonFormulaTab.RibbonItem identifier.
- [RibbonFormulaTab.RibbonItem Enumeration](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/ribbonitem-enumeration/llms-full.txt): Each RibbonItem represents an item in the RibbonFormulaTab that is not a drop-down item. The corresponding string of a RibbonItem is the same as the item's Name property. The RibbonItem enumeration can be used with the FindItem method to get an item and manipulate it or with the ResourceProvider class that provides static methods to receive bitmaps or strings which are associated with the corresponding ribbon item.

---

## Nearby

- **Previous:** [RibbonFormFieldsTab.RibbonItem Enumeration](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformfieldstab/ribbonitem-enumeration/llms-full.txt)
- **Next:** [RibbonFormulaTab Constructor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-windows-forms-ribbon/ribbonformulatab/constructor/llms-full.txt)