getSelectedData fails in single select mode when there is no selection

[[email protected]…]

I added the highlighted part of the below method to handle the case where the table is in single select mode and there was no selection. It was trying to access the 0 index item of an empty array before this change.

• Michael Latta

	getSelectedData: function(){
		//	summary
		//	returns all objects that are selected.
		var data=this.store.get();
		var a=[];
		for(var i=0; i<data.length; i++){
			if(data[i].isSelected){
				a.push(data[i].src);
			}
		}
		// *******************************************************************************
		// the following 3 lines are required to deal with single select mode and an empty selection
		if(a.length == 0) {
			return null;	// no current selection
		} else
		// *******************************************************************************
		if(this.multiple){
			return a;		//	array
		} else {
			return a[0];	//	object
		}
	},

[Tom Trenka]

(In [7026]) Fixes #2250.