role.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

/// <summary>
/// Summary description for Role
/// </summary>
public class Role
{
	public SqlDataReader GetRoles()
	{
		///定义类SQLHelper
		SQLHelper sqlHelper = new SQLHelper();

		///定义保存从数据库获取的结果的DataReader
		SqlDataReader dr = null;

		try
		{
			///执行存储过程
			sqlHelper.RunProc("Pr_GetRoles",out dr);
		}
		catch(Exception ex)
		{
			///抛出执行数据库异常
			SQLHelper.CreateErrorMsg(ex.Message);
			throw new Exception(ex.Message,ex);
		}

		///返回从数据库获取的结果
		return (dr);
	}

	public SqlDataReader GetSingleRole(int nRoleID)
	{
		///定义类SQLHelper
		SQLHelper sqlHelper = new SQLHelper();

		///定义保存从数据库获取的结果的DataReader
		SqlDataReader dr = null;

		///创建访问数据库的参数			
		SqlParameter[] paramList = {
			sqlHelper.CreateInParam("@RoleID",SqlDbType.Int,4,nRoleID)
		};

		try
		{
			///执行存储过程
			sqlHelper.RunProc("Pr_GetSingleRole",paramList,out dr);
		}
		catch(Exception ex)
		{
			///抛出执行数据库异常
			SQLHelper.CreateErrorMsg(ex.Message);
			throw new Exception(ex.Message,ex);
		}

		///返回从数据库获取的结果
		return (dr);
	}

	public int AddRole(string sRoleName)
	{
		///定义类SQLHelper
		SQLHelper sqlHelper = new SQLHelper();

		///创建访问数据库的参数			
		SqlParameter[] paramList = {
			sqlHelper.CreateInParam("@RoleName",SqlDbType.VarChar,200,sRoleName)
		};

		try
		{
			///执行存储过程
			return (sqlHelper.RunProc("Pr_AddRole",paramList));
		}
		catch(Exception ex)
		{
			///抛出执行数据库异常
			SQLHelper.CreateErrorMsg(ex.Message);
			throw new Exception(ex.Message,ex);
		}
	}

	public void UpdateRole(int nRoleID,string sRoleName)
	{
		///定义类SQLHelper
		SQLHelper sqlHelper = new SQLHelper();

		///创建访问数据库的参数			
		SqlParameter[] paramList = {
			sqlHelper.CreateInParam("@RoleID",SqlDbType.Int,4,nRoleID),
			sqlHelper.CreateInParam("@RoleName",SqlDbType.VarChar,200,sRoleName)
		};

		try
		{
			///执行存储过程
			sqlHelper.RunProc("Pr_UpdateRole",paramList);
		}
		catch(Exception ex)
		{
			///抛出执行数据库异常
			SQLHelper.CreateErrorMsg(ex.Message);
			throw new Exception(ex.Message,ex);
		}
	}

	public void DeleteRole(int nRoleID)
	{
		///定义类SQLHelper
		SQLHelper sqlHelper = new SQLHelper();

		///创建访问数据库的参数			
		SqlParameter[] paramList = {
			sqlHelper.CreateInParam("@RoleID",SqlDbType.Int,4,nRoleID)
		};

		try
		{
			///执行存储过程
			sqlHelper.RunProc("Pr_DeleteRole",paramList);
		}
		catch(Exception ex)
		{
			///抛出执行数据库异常
			SQLHelper.CreateErrorMsg(ex.Message);
			throw new Exception(ex.Message,ex);
		}
	}
}