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Posted by Nick Thissen

on 05/28/2020 15:49:08

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You can get the SelectedItem. With the SelectedItem you can also get the Text, or you can get the index by using the IndexOf function on the list of items.

The upcoming ATVO theme uses this to change the class filter on tickers. It is slightly more complicated as it is designed to be re-used for multiple tickers so the first part of the script is finding the right widget to change. The rest should be similar.

This is triggered by a dropdown which has the items in this order:

• Index 0: All classes
• Index 1: Class 1
• Index 2: Class 2
• etc...

using System;
using ATVO.ThemesSDK;
using ATVO.ThemeEditor.ThemeModels;
using ATVO.ThemeEditor.Scripting.DotNET;
using ATVO.ThemeEditor.Data;
using System.Collections.Generic;

namespace Scripts
{
	public class ChangeTickerClassFilter : IScript
	{
		public object Execute(ThemeContentItem item, object value, string parameter, ISimulation sim)
		{
			// Which ticker(s) are we changing?
			List<Widget> tickers = new List<Widget>();
			var tickerValue = (string)value;
			if (tickerValue == "H")
			{
				// Horizontal ticker
				tickers.Add(item.Theme.Widgets.Find("W_HTicker"));
			}
			else if (tickerValue == "V")
			{
				// Vertical ticker
				tickers.Add(item.Theme.Widgets.Find("W_VTickerTop"));
				tickers.Add(item.Theme.Widgets.Find("W_VTickerBottom"));
			}
			else if (tickerValue == "Grid")
			{
				// Grid tickers
				tickers.Add(item.Theme.Widgets.Find("W_GridLeft"));
				tickers.Add(item.Theme.Widgets.Find("W_GridRight"));				
			}
			else if (tickerValue == "Results")
			{
				// Results ticker
				tickers.Add(item.Theme.Widgets.Find("W_Results"));
			}
			
			// Default: all classes
			DataClassIndex index = DataClassIndex.AllClasses;

			// Find the dropdown and the index of the selected item
			var dropdown = (Dropdown)item;
			var selectedIndex = dropdown.Items.IndexOf(dropdown.SelectedItem);
			if (selectedIndex >= 0)
			{
				// The index of the dropdown items happens to coincide with the class filter indices, 
				// so this is an easy way to set the index without a long list of "if" or switch statements
				index = (DataClassIndex) selectedIndex;
			}

			// Finally change the class filter
			// Also restart the ticker to have it recalculate which items to show
			foreach (var ticker in tickers)
			{
				ticker.DataClassIndex = index;	
				ticker.Ticker.Restart();
			}
			
			return null;
		}
	}
}