# LibTmux.TmuxOption.Index

- **Module:** LibTmux.TmuxOption
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/6656a563ec9e07ab52e0c3ac96f7704fc94cc0c0/src/LibTmux/Options/TmuxOptionValue.cs#L89
- **Page:** https://libtmux.org/reference/dotnet/libtmux-tmuxoption-index/

Gets the array index, or null for an option that is not an array.