Why can't I assign null to decimal with ternary operator?

Question

I can\'t understand why this won\'t work

decimal? compRetAmount = !string.IsNullOrEmpty(txtLineCompRetAmt.Text) 
    ? decimal.Parse(txtLineCompRetAmt.Text.R         


        

Answer 1

decimal? compRetAmount = !string.IsNullOrEmpty(txtLineCompRetAmt.Text) ?  
                          decimal.Parse(txtLineCompRetAmt.Text.Replace(",","")) : 
                          (decimal?)null;