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ExtGWT Rich Internet Application Cookbook by Odili Charles Opute

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Grouping column headers

Column grouping is a very much desired feature in grids and is often used by many to ascertain the maturity of a grid widget in a UI toolkit. Thankfully, the GXT Grid component has a good implementation for grouped column headings that we can use right away. Grouped headers can be used to convey to the user a visual structure that otherwise would have been really difficult, unless we used long and funny names.

Imagine having to use something such as principal credit, principal debit, principal balance to express the transactions on the principal of a loan; and also interest credit, interest debit, and interest cumulative for transactions of the interest. Such column names are not only long and funny, they are monotonous ...

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