how to insert checkbox as market analyser column

[junkone]

I copied the info from notes column and I have a editable textbox in market analyser. can you guide me on how to get a checkbox in a market analyser column?
and also, how can I retrieve the property of an existing market analyser column programmatically? I have the notes column customized. but I want to run some scans based on this column value. how can I retrieve the value programmatically so I can do a quick cross above or cross below comparision.

public class CrossAbove : MarketAnalyzerColumn
	{
		
			protected override void OnStateChange()
		{if (State == State.SetDefaults)
			{
				Description				= "crossabove";
				Name					=  "crossabove";
				IsDataSeriesRequired	= false;
				DataType				= typeof(string);
				IsEditable				= true;
			}
		}
		
		 
	protected override void OnMarketData(Data.MarketDataEventArgs marketDataUpdate)
		{
			int a;
//			  if (marketDataUpdate.MarketDataType == MarketDataType.Ask   )
//			  {
//				  Print(DateTime.Now + marketDataUpdate.Instrument.FullName  + marketDataUpdate.Instrument.MasterInstrument.FormatPrice(marketDataUpdate.Price) + "Crossed below ask" + mobject.ask );
//			  }
			  
		}

[NinjaTrader_PatrickH]

Hello junkone,

Thank you for your post.

I will continue to look into how to add a CheckBox to the Column.

The Columns themselves do not have an exposed value that can be called. So setting a value in a DataType of string would not mean we can pull that value. We could also not pull an Editable (IsEditable = true) column in the Alerts of the Market Analyzer.
Only way we could input a value and then compare it against other columns in Alerts is in the following manner:

		protected override void OnStateChange()
		{
			if (State == State.SetDefaults)
			{
				Description							= @"Enter the description for your new custom Market Analyzer Column here.";
				Name								= "TestStringInput";
				Calculate							= Calculate.OnPriceChange;
				MyString					= "1500";
				IsDataSeriesRequired	= false;
				DataType				= typeof(string);
				IsEditable				= false;
			}
			else if (State == State.Configure)
			{
			}
		}
		
		protected override void OnMarketData(Data.MarketDataEventArgs marketDataUpdate)
		{
			CurrentText = MyString;
		}