Well, If they create a group, or select a group that they can modify, then they need the checkboxes. Having them disappear and reappear (rather than be disabled and enabled) violates the principles of UI design that I know and agree with. Starting with the belief that the UI should be stable and solid, and that controls should not move (muscle memory being key to accomplishing things quickly, a UI that moves targets around is a bad UI).
> Now, about your question > which requires a question: Did you extend Column<T,C> to use check boxes in > your cell table? If you did you can extend your implementation's api even > further by providing it with methods to enable and disable the checkboxes. public class UserColumn extends Column<String, Boolean> implements FieldUpdater<String, Boolean> My Cell is a CheckboxCell. I don't see any routines in either class for enabling or disabling the checkbox. So, what do I override / call? Thanks, Greg On Jan 28, 11:29 am, Jeff Schwartz <jefftschwa...@gmail.com> wrote: > From a UI designer's perspective why display a column of check boxes if the > user isn't allowed to click them? I wouldn't personally as a designer nor > would I like that if I were a user. > > If the checkbox column is in a cell table that is being rendered in response > to the user having selected something from somewhere else in the view then > I'd first determine if the user can or cannot check the boxes and then I > would render the table accordingly. > > But that is just me and the way I would do it. Now, about your question > which requires a question: Did you extend Column<T,C> to use check boxes in > your cell table? If you did you can extend your implementation's api even > further by providing it with methods to enable and disable the checkboxes. > > Jeff > > On Fri, Jan 28, 2011 at 11:59 AM, Greg Dougherty <dougherty.greg...@mayo.edu > > > > > wrote: > > Hi Jeff, > > > Thank you. I added a SingleSelectionModel to my CellTable, and now I > > can force selection of rows. > > > Any idea how I tell a column of CheckBoxes that they can't accept any > > clicks? > > > Greg > > > On Jan 28, 10:11 am, Jeff Schwartz <jefftschwa...@gmail.com> wrote: > > > You can use one of the concrete implementations of AbstractSelectionModel > > to > > > select rows and respond to row selection. CellTables and > > > AbstractSelectionModel instances work hand-in-hand. > > > > You connect the selection model to the cell table by calling the table's > > > setSelectionModel method passing an instance of a selection model. > > > > You select rows by calling the selection model's setSelected method > > passing > > > an instance of the data object being displayed by the table. The row > > > displaying that instance of the data object will then be selected > > > > You respond to row selection by adding a SelectionChangeEvent.Handler() > > to > > > the selection model by calling the selection model's > > > addSelectionChangeHandler method. You can use this event, for instance, > > to > > > load a detailed view of the selected data object such as more > > information, > > > data from its children data objects, etc. etc. > > > > Jeff > > > > On Fri, Jan 28, 2011 at 10:49 AM, Greg Dougherty < > > dougherty.greg...@mayo.edu > > > > > wrote: > > > > I am trying to use three CellTables to make a Users and Groups panel > > > > in my current application. Its purpose is so users can give other > > > > users access to resources that they control (in this particular case, > > > > choosing which people can see the information you've uploaded to a > > > > database). > > > > > The first table is the Groups table. Groups can be added and > > > > selected. If you are the owner of the current Group then you can > > > > modify its settings, if not, you can't. > > > > > The second table is Users. It has two columns, a text field with the > > > > name of the user, and a checkbox reporting whether or not the user is > > > > a member of the selected group. > > > > > The third table is Resources. It lists the information available to > > > > members of the current group, and any information you control that is > > > > not available to the current group (so you can give access to that > > > > information to the members of the group). It also has two fields, the > > > > name of the resource, and a checkbox. > > > > > Issues I'm trying to solve: > > > > 1: How do I programmatically select a row in a table? When a user > > > > creates a new group, I wish to select it. When the user first brings > > > > up the panel, I'd like to select the first group (or, maybe, the first > > > > group the person owns). > > > > > 2: How do I disable a checkbox? If the user doesn't own the group, > > > > they shouldn't be able to change anything. > > > > > TIA, > > > > > Greg > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "Google Web Toolkit" group. > > > > To post to this group, send email to > > google-web-toolkit@googlegroups.com. > > > > To unsubscribe from this group, send email to > > > > google-web-toolkit+unsubscr...@googlegroups.com<google-web-toolkit%2bunsubscr...@googlegroups.com> > > <google-web-toolkit%2bunsubscr...@googlegroups.com<google-web-toolkit%252bunsubscr...@googlegroups.com> > > > > > . > > > > For more options, visit this group at > > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > > > -- > > > *Jeff Schwartz* > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google Web Toolkit" group. > > To post to this group, send email to google-web-toolkit@googlegroups.com. > > To unsubscribe from this group, send email to > > google-web-toolkit+unsubscr...@googlegroups.com<google-web-toolkit%2bunsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-web-toolkit?hl=en. > > -- > *Jeff Schwartz* -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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