# FormulaException Class

> The FormulaException class informs about an invalid syntax or missing parameters of formulas used in tables.

- **Product:** TX Text Control .NET for WPF
- **Section:** Reference
- **Kind:** Class
- **Introduced:** 26.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.WPF.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Inherits:** `System.Exception`
- **Path:** TX Text Control .NET for WPF > Reference > TXTextControl > FormulaException Class
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/llms-full.txt

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## On This Page

- [Description](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/#description)
- [Syntax](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/#syntax)
- [Examples](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/#examples)
- [Members](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/#members)

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## In This Section

- [FormulaException.CharacterIndex Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/characterindex-property/llms.txt): Gets the one-based character index of the first invalid character in the formula string.

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## Nearby

- **Previous:** [FormFieldEventArgs.FormField Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formfieldeventargs/formfield-property/llms.txt)
- **Next:** [FormulaException.CharacterIndex Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol/formulaexception/characterindex-property/llms.txt)