вот кнопка с javascript выдает пусте значения
<
input
id="Button1"
type="button"
value="button"
onclick
="javascript:function Get_Selected_Item_ID()
{
var selectedItems = SP.ListOperation.Selection.getSelectedItems();
var ListId = SP.ListOperation.Selection.getSelectedList();
for(var i in selectedItems)
{
alert('Item ID = ' + selectedItems[i].id);
}
alert('items = ' + selectedItems);
var ctx = SP.ClientContext.get_current();
var web = ctx.get_web();
ctx.load(web);
alert('CTX = ' + ctx);
alert('CTX URL = ' + ctx.Url);
alert('WEB = ' + web);
alert('WEB URL = ' + web.Url);
}
Get_Selected_Item_ID()"
/>