Operands of type 'decimal' and 'double'

Operator cannot be applied to operands of type 'decimal' and 'double'

Once I tried to compare my string with the a decimal value. I got an error indicating the decimal value cannot be compared.

(Convert.ToInt(txt_LowerBound.Text) < 0.001))... Resolved by changing the conversion 
(Convert.ToDecimal(txt_LowerBound.Text) < 0.001)) 
  
Now, I got the next error message. 

Operator '<' cannot be applied to operands of type decimal' and 'double' 

The final change to get this condition work is as below, 

(Convert.ToDecimal(txt_LowerBound.Text) < 0.001M))

Cheers,
Venkatesan Prabu .J
Head, KaaShiv InfoTech