Object cannot be cast from DBNull to other types (Date)

Question

Hello,

 

I retrieve data from db through dataset as following:

birthdate.Text = Convert.ToDateTime(ds.Tables[0].Rows[0]["BirthDate"]).ToString("dd/MM/yyyy");

 

My problem is when the BirthDate is null I get the following exception   "Object cannot be cast from DBNull to other types."

 

I tried:

if (String.IsNullOrEmpty(Convert.ToDateTime(ds.Tables[0].Rows[0]["BirthDate"]).ToString("dd/MM/yyyy").Trim()))

birthdate.Text = null;

else

birthdate.Text = Convert.ToDateTime(ds.Tables[0].Rows[0]["BirthDate"]).ToString("dd/MM/yyyy");

 

but I'm still getting the exception. 

 

Any suggestions?

 

Thank you in advance.