# Custom Format

## Content

Setting [FormatType](/componentone/docs/win/online-input-net/) to **CustomFormat** corresponds to the case of a *custom format specifier* as defined in the .NET Framework documentation, the specifier itself is determined by the CustomFormat property. In the CustomFormat string you define the format desired using special characters for numeric and date-time types as presented in the following tables. For details, see [Custom Numeric Format Strings](https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-numeric-format-strings) and [Date and Time Format Strings](https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-date-and-time-format-strings) in the .NET Framework documentation.