Getting Sharepoint selected list item by using Client Side Object Model (CSOM)

Question

Can anybody please help me by suggesting good site or sample code for Getting Sharepoint selected list item by using Client Side Object Model (CSOM) in sharepoint 2010. I need to print these selected items by using CSOM. Please help me for this. Thanks in adavance.

Answer 1

SP.ListOperation.Selection Class Provides methods for selecting lists or list items, in particular SP.ListOperation.Selection.getSelectedItems() method Gets the list items being selected

Example 1: Get selected items

function getSelectedItems()
{
    var context = SP.ClientContext.get_current();
    var selectedItems = SP.ListOperation.Selection.getSelectedItems(context);
    return selectedItems;
}

Note: Method SP.ListOperation.Selection.getSelectedItems returns the key/value collection > that contains the list items being selected (not SP.ListItem collection!)

Example 2. Get selected SP.ListItem collection

function getSelectedItems(OnSuccess,OnError)
{
    var context = SP.ClientContext.get_current();
    var listId = SP.ListOperation.Selection.getSelectedList(); //selected list Id
    var selectedItemIds = SP.ListOperation.Selection.getSelectedItems(context); //selected Items Ids

    var list = context.get_web().get_lists().getById(listId);
    var listItems = [];
    for (idx in selectedItemIds)
    {
        var item = list.getItemById(parseInt(selectedItemIds[idx].id));
        listItems.push(item);
        context.load(item);
    }
    context.executeQueryAsync(
       function() {
          OnSuccess(listItems);       
       },
       OnError
    ); 

}

//Usage
getSelectedItems(function(items){
    for (var i =0 ; i < items.length;i++)
    {
       console.log(items[i].get_item('Title'));  
    }  
},function(sender,args){
    console.log('An error occured: ' + args.get_message());
});