I could use some advice. I need a component that can have a dynamic number of rows and columns, preferably with HtmlSelectBooleanCheckbox controls in each cell, and the control in the cell needs to know what object-backed column it is in so it can get/set values based on both the row and column. Getting the row object is easy enough via HtmlDataTable.getRowData().
Currently, I've written some ugly hack code that subclasses HtmlSelectBooleanCheckbox to store a "context" column object, reads a delegate object out of the "valueSource" ValueBinding, and overrides getValue() to call "valueSource".getValueFor(contextObject). I also override saveState/restoreState to save both parameters. I then manually add columns containing ContextProvidingHtmlSelectBooleanCheckbox objects to an HtmlDataTable and set a ValueChangeListener (along with "valueSource") so I can be notified when the data changes. And this ugly hack works somewhat. (I still have the problem where after the page is redisplayed, the initial values of all of the Checkboxes are lost, but I'll probably figure out that issue eventually.) However, this can't be the best way to handle a variable-width HtmlDataTable. Is my only other solution to create a custom HtmlDataTable component from scratch? Or is there an easier solution I'm overlooking? Having a control that supports N x M data manupulation seems like pretty basic functionality. Thanks, -Mike
