To create a sub grid in a grid expandable row (Modern Toolkit), you can extend the existing ‘RowExpander‘ plugin and override the ‘onGridTap’ method. This technique can be used to show FormPanel, Tree or some other custom ExtJs component in the expanded row body.
Small util functions to validate Roman numerals, and to convert Roman numerals into the decimal numeral system and vice versa. Because of strict limitation of the Roman numeric system to represent the numerals, such as M, D, C, L, X, V, and I, the maximum roman numeral is “MMMCMXCIX” (3999). I have used recursion algorithm in the toDecimal function to make that function even smaller. Continue reading “Roman – Decimal converter”