怎样写一个存储过程类来实现C#中对存储过程的调用？

A: 假设数据表为UserDataStore，存储过程InsertUserData如下：

CREATE PROCEDURE InsertUserData
@UserName NVARCHAR(50) = NULL,
@UserInfo NVARCHAR(4000) = NULL

AS
SET XACT_ABORT ON
BEGIN TRANSACTION
INSERT INTO [UserDataStore]
VALUES (@UserName,@UserInfo)
COMMIT TRANSACTION
RETURN 0
GO

则相应的程序为：

...

public bool InsertUserData(DataSet userData)
{
OleDbCommand insertCommand=new OleDbCommand("InsertUserData",dsConnection);
insertCommand.CommandType=CommandType.StoredProcedure;
insertCommand.Parameters.Add("@UserName",OleDbType.VarWChar,50,"UserName");
insertCommand.Parameters.Add("@UserInfo", OleDbType.VarWChar,4000,"UserInfo");
dsCommand.InsertCommand=insertCommand;
try
{
dsCommand.InsertCommand=this.GetInsertCommand();
dsCommand.Update(userData,"UserDataStore");
userData.AcceptChanges();
return (true);
}
catch(Exception e)
{
throw e;
}