c# - How to pass key value pairs from console app to a Dictionary -

i want pass arguments app so:

app.exe mode=1 thread=single 

and want convert these dictionary of key-value pairs. one-line suggestions?

this basic , doesn't take error conditions account:

var dictionary = args.select(a => a.split('='))                      .todictionary(a => a[0], => a.length == 2 ? a[1] : null); 

some of potential errors are:

• duplicate names
• more 1 =

dealing makes little uglier:

var dictionary = args.select(a => a.split(new [] {'='}, 2))                      .groupby(a => a[0], => a.length == 2 ? a[1] : null)                      .todictionary(g => g.key, g => g.firstordefault());