public bool DeleteActivity(long ActivityID, int ModifiedBy)
{
SqlCommand cmd = new SqlCommand("exec dbo.Atul_ActivityDelete_sp @AtulActivityID, @ModifiedBy", this._connection);
cmd.Parameters.Add(new SqlParameter("@AtulActivityID", ActivityID));
cmd.Parameters.Add(new SqlParameter("@ModifiedBy", ModifiedBy));
bool success = Convert.ToBoolean(cmd.ExecuteNonQuery());
return success;
}