How to call this store procedure in c#

Alter PROCEDURE MasterInsertUpdateDelete

(

    @id         INTEGER,

    @first_name  VARCHAR(10),

    @last_name   VARCHAR(10),

    @salary      DECIMAL(10,2),

    @city        VARCHAR(20), 

    @StatementType nvarchar(20) = ''

)

 

AS

BEGIN

IF @StatementType = 'Insert'

BEGIN

insert into employee (id,first_name,last_name,salary,city) values( @id, @first_name,  @last_name,  @salary, @city)   

END

 

IF @StatementType = 'Select'

BEGIN

select * from employee

END 

 

IF @StatementType = 'Update'

BEGIN

UPDATE employee SET

            First_name =  @first_name, last_name = @last_name, salary = @salary,

            city = @city

      WHERE id = @id

END

 

else IF @StatementType = 'Delete'

BEGIN

DELETE FROM employee WHERE id = @id

END

end