Grid Multiple Select Client > Server

[jwhitley]

I implemented an Outlook Web Access type mailbox using RadGrid eons ago and have only had to perform minor maintenance over the years. It is currently using Q1 2011 controls and has been limited to single row selections. I capture the client side rowclick event and perform a callback to the server passing the newly selected index as an argument. Server side I reset the colour of the previously selected row (grid.SelectedItems[0]) and unselect it, then darken the colour of the newly selected row (the index of which was passed as an argument in the callback), selecting it server side.

My client now wants to enable multirow select (to delete multiple emails, for example). I would of course like to do this with as few changes as possible, but during the callback, the server does not know whether the newly selected row is part of a multiple selection or a single selection, so it does not know whether the previously selected row needs to be unselected or not. Is there any argument that I can pass to the server as part of the callback which indicates whether the ctrl key was depressed at the time of the new selection (or, even better, an attribute of the grid that shows which is the current selection "mode")? If not, what's the best way of reading all selected row indexes client side so that I can pass an argument array to the server?

Many thanks.

[Pavlina]

Hi Jwhitley,

I suggest that you check out the code library below and see if it helps to achieve your goal:
http://www.telerik.com/community/code-library/aspnet-ajax/grid/how-to-select-multiple-items-without-holding-the-ctrl-key.aspx

Kind regards,
Pavlina
the Telerik team

[jwhitley]

Thanks for the reply. Having to hold down the control key is not a problem. The issue is providing a list of all currently selected row indexes to the server during the callback. For a single row this is easy as the rowclick event on the client includes the row index and I can pass this as an argument to the server. What I can't seem to get hold of on the client is an array of all selected row indexes. I can get the row objects themselves, but can't seem to access the indexes.

I'm hoping this is easy to achieve?

Thanks again.

[Pavlina]

Hello Jwhitley,

Go through the link below and see if it helps:
http://www.telerik.com/community/forums/aspnet/grid/multiselect-rows-from-client-to-server.aspx

Best wishes,
Pavlina
the Telerik team