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C#技术学习之-SqlParameters

选择字号：超大标准 发布时间：2008-9-28 9:23:39 | 作者：admin | 0个评论 | 人浏览

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Configuration;
namespace Mirror.AutoWeb.HelpCSharp.DataBase
{
/// <summary>
/// StudyParameters 的摘要说明。
/// </summary>
public class StudyParameters : System.Web.UI.Page
{
  protected System.Web.UI.WebControls.TextBox RoleName;
  protected System.Web.UI.WebControls.TextBox Description;
  protected System.Web.UI.WebControls.Button SureBtn;
  protected System.Web.UI.WebControls.Literal SuccessMessage;
  private readonly string connstr = ConfigurationSettings.AppSettings["MySQLConnString1"].ToString();
  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
  }

  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   //
   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
   //
   InitializeComponent();
   base.OnInit(e);
  }

  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.SureBtn.Click += new System.EventHandler(this.SureBtn_Click);
   this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

  private void SureBtn_Click(object sender, System.EventArgs e)
  {
   if(RoleName.Text.Trim().Length>0)
   {
    int roleID;
    //如果有重复的角色，则使用存储过程判断并不增加角色；
    roleID=AddRole(RoleName.Text.Trim(),Description.Text.Trim());
    SuccessMessage.Visible=true;
    SuccessMessage.Text="添加角色成功！角色编号：" + roleID.ToString();
   }
   else
   {
    SuccessMessage.Visible=true;
    SuccessMessage.Text="添加角色失败！";
   }
  }

  private int AddRole(string sRoleName,string sRoleDescn)
  {
   SqlConnection MyConn = new SqlConnection(connstr);
   SqlCommand MyCmd = new SqlCommand("Pr_AddRole",MyConn);
   MyCmd.CommandType = CommandType.StoredProcedure;
   SqlParameter parameterRoleName = new SqlParameter("@RoleName",SqlDbType.VarChar);
   parameterRoleName.Value=sRoleName;
   MyCmd.Parameters.Add(parameterRoleName);

MyCmd.Parameters.Add(new SqlParameter("@Description",SqlDbType.Text));
MyCmd.Parameters[1].Value=sRoleDescn;

   SqlParameter parameterRoleID = new SqlParameter("@Role_ID",SqlDbType.Int);
   parameterRoleID.Direction = ParameterDirection.ReturnValue;
   MyCmd.Parameters.Add(parameterRoleID);
   MyConn.Open();
   MyCmd.ExecuteNonQuery();
   MyConn.Close();
   return (int)parameterRoleID.Value;
  }
}
#region "SQL建立命令"
/*
create Procedure Pr_AddRole
  (
  @RoleName varchar(255),
  @Description text
  )
  as
  declare @RecordCount as int
  Set @RecordCount =
  (
   Select count(*) From Role Where Role_Name= @RoleName
  )
  if @RecordCount<1
   Begin
    Insert into Role(Role_Name,Role_Description)
    values
    (@RoleName,@Description)
    return @@Identity
   End
  GO
* */
/*
* if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Role]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
  drop table [dbo].[Role]
  GO

  if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[StaffRole]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
  drop table [dbo].[StaffRole]
  GO

  CREATE TABLE [dbo].[Role] (
   [Role_ID] [int] IDENTITY (1, 1) NOT NULL ,
   [Role_Name] [varchar] (255) COLLATE Chinese_PRC_CI_AS NULL ,
   [Role_Description] [text] COLLATE Chinese_PRC_CI_AS NULL
  ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
  GO

  CREATE TABLE [dbo].[StaffRole] (
   [Staff_ID] [int] NULL ,
   [Role_ID] [int] NULL
  ) ON [PRIMARY]
  GO

* */
#endregion

}

标签：SqlParameters C#

C#技术学习之-SqlParameters

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