FrameCountry数据访问层架构是以.Net为开发平台，专注于多层开发架构中数据访问层功能的应用程序。本文章介绍如何通过FrameCountry快速访问SQLServer数据库，数据库表为SQLServer2000的pubs库中的jobs表。（更多内容请下载最新版本FrameCountry架构，其中含实例程序和使用手册）
一、新建C#工程
1. 建立C#工程，名称QuickSQLServer；
2. 添加引用，选择FrameCountry架构文件FrameCountry.dll；
3. 在界面增加4个按钮：名称分别为“查询”、“添加”、“修改”、“删除”；
增加4个对话框：name属性为“job_id”、“job_desc”、“min_lvl”、“max_lvl”；
增加一个DataGrid空间，name定义为dgGrid，如图：
二、配置FrameCountry架构文件
1. 在工程的FrameCountry.dll目录中建立两个配置文件FrameConnect.xml和FrameConfig.xml。
2. FarmeConnect.xml配置文件内容如下：
<?xml version="1.0" encoding="GB2312"?>
<ConfigList>
<Datebase>
<DBString>User ID=sa;Data Source="127.0.0.1"
assword=;Initial Catalog=pubs
rovider="SQLOLEDB.1"</DBString>
<DBTimeout>30</DBTimeout>
</Datebase>
<Debug>
<DebugType>1</DebugType>
</Debug>
<Register>
<RegisterString>[2999-12-31]W5dBN6YXQ8ks6xXCwPZKloxtB11Y9ExGnG3WaSNCkWKZ6HP52XU47l2dT4GXrxdS4/v9LT7rTasYGoyDs4BwEPLbfMSbCFGITZqLuJKbArLkLTnpmA5IPd27qfOiBhMnemzhMpYGk7+7dU4wbCcrn0rssJf7kRd7HTaNJGHKNE5cHDtW3wUraC4bkyWhnNXcluyImPy555w=</RegisterString>
<RegisterExplain>限时到2999年12月31日</RegisterExplain>
</Register>
</ConfigList>
3. FarmeConfig.xml配置文件内容如下：
<?xml version="1.0" encoding="GB2312"?>
<ConfigList>
<jobs CommandName="Table" Depiction="工作表">
<MainInfo>
jobs
</MainInfo>
<WhereList>
<job_id Depiction="工作ID号" DataType="Number" Operator="=">job_id</job_id>
<job_desc Depiction="工作描述" DataType="String" Operator="=">job_desc</job_desc>
<min_lvl Depiction="最大数" DataType="Number" Operator="=">min_lvl</min_lvl>
<max_lvl Depiction="最小数" DataType="Number" Operator="=">max_lvl</max_lvl>
</WhereList>
</jobs>
</ConfigList>
三、双击“查询”按钮添加如下代码：
//查询操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="select"; //设置操作类型
if(job_desc.Text!="") //当描述框不为空时执行近似“like”查询
fBridge.TransWhere["job_desc","like"]="%"+job_desc.Text+"%";
if(!fTown.ExeQuery(fBridge,ref dsData,ref sError)) //执行查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
dgGrid.DataSource=dsData.Tables[0];
四、双击“插入”按钮添加如下按钮：
//插入操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="insert"; //设置操作类型
//fBridge.TransValue["job_id"]=job_id.Text; //该列自动增加，不用设置
fBridge.TransValue["job_desc"]=job_desc.Text;
fBridge.TransValue["min_lvl"]=min_lvl.Text;
fBridge.TransValue["max_lvl"]=max_lvl.Text;
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
五、双击“修改”按钮添加如下按钮：
//修改操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="update"; //设置操作类型
fBridge.TransWhere["job_id"]=job_id.Text; //该列作为更新条件
fBridge.TransValue["job_desc"]=job_desc.Text;
fBridge.TransValue["min_lvl"]=min_lvl.Text;
fBridge.TransValue["max_lvl"]=max_lvl.Text;
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
六、双击“删除”按钮添加如下按钮：
//删除操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="delete"; //设置操作类型
fBridge.TransWhere["job_id"]=job_id.Text; //该列作为更新条件
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
七、总结
以上步骤实现了对SQLServer数据库的增加、修改、删除、查询操作，代码过程简单，可读性强，FrameCountry数据访问层架构通过对数据库的操作完全封装，简化开发过程，开发人员只需要关注业务逻辑的实现即可。
更多内容请看我的博客：
http://blog.csdn.net/lizheng82
下载最新的FrameCountry数据访问层架构：
http://blog.csdn.net/lizheng82/archive/2007/06/18/1656140.aspx
八、全部程序
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace QuickSQLServer
...{
/**//// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
...{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.TextBox job_id;
private System.Windows.Forms.TextBox job_desc;
private System.Windows.Forms.TextBox min_lvl;
private System.Windows.Forms.TextBox max_lvl;
private System.Windows.Forms.DataGrid dgGrid;
/**//// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
...{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/**//// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
...{
if( disposing )
...{
if (components != null)
...{
components.Dispose();
}
}
base.Dispose( disposing );
}
Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码
/**//// <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.button1 = new System.Windows.Forms.Button();
this.dgGrid = new System.Windows.Forms.DataGrid();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.job_id = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.job_desc = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.min_lvl = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.max_lvl = new System.Windows.Forms.TextBox();
((System.ComponentModel.ISupportInitialize)(this.dgGrid)).BeginInit();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(8, 8);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "查询";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// dgGrid
//
this.dgGrid.DataMember = "";
this.dgGrid.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dgGrid.Location = new System.Drawing.Point(168, 40);
this.dgGrid.Name = "dgGrid";
this.dgGrid.Size = new System.Drawing.Size(304, 280);
this.dgGrid.TabIndex = 4;
//
// button2
//
this.button2.Location = new System.Drawing.Point(88, 8);
this.button2.Name = "button2";
this.button2.TabIndex = 0;
this.button2.Text = "插入";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(168, 8);
this.button3.Name = "button3";
this.button3.TabIndex = 0;
this.button3.Text = "修改";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Location = new System.Drawing.Point(248, 8);
this.button4.Name = "button4";
this.button4.TabIndex = 0;
this.button4.Text = "删除";
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// job_id
//
this.job_id.Location = new System.Drawing.Point(64, 40);
this.job_id.Name = "job_id";
this.job_id.TabIndex = 2;
this.job_id.Text = "";
//
// label1
//
this.label1.Location = new System.Drawing.Point(8, 40);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(48, 23);
this.label1.TabIndex = 3;
this.label1.Text = "job_id";
//
// label2
//
this.label2.Location = new System.Drawing.Point(8, 72);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(56, 23);
this.label2.TabIndex = 3;
this.label2.Text = "job_desc";
//
// job_desc
//
this.job_desc.Location = new System.Drawing.Point(64, 72);
this.job_desc.Name = "job_desc";
this.job_desc.TabIndex = 2;
this.job_desc.Text = "";
//
// label3
//
this.label3.Location = new System.Drawing.Point(8, 104);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(48, 23);
this.label3.TabIndex = 3;
this.label3.Text = "min_lvl";
//
// min_lvl
//
this.min_lvl.Location = new System.Drawing.Point(64, 104);
this.min_lvl.Name = "min_lvl";
this.min_lvl.TabIndex = 2;
this.min_lvl.Text = "";
//
// label4
//
this.label4.Location = new System.Drawing.Point(8, 136);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(48, 23);
this.label4.TabIndex = 3;
this.label4.Text = "max_lvl";
//
// max_lvl
//
this.max_lvl.Location = new System.Drawing.Point(64, 136);
this.max_lvl.Name = "max_lvl";
this.max_lvl.TabIndex = 2;
this.max_lvl.Text = "";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(480, 326);
this.Controls.Add(this.job_id);
this.Controls.Add(this.label1);
this.Controls.Add(this.dgGrid);
this.Controls.Add(this.button1);
this.Controls.Add(this.button2);
this.Controls.Add(this.button3);
this.Controls.Add(this.button4);
this.Controls.Add(this.label2);
this.Controls.Add(this.job_desc);
this.Controls.Add(this.label3);
this.Controls.Add(this.min_lvl);
this.Controls.Add(this.label4);
this.Controls.Add(this.max_lvl);
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.dgGrid)).EndInit();
this.ResumeLayout(false);
}
#endregion
/**//// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
...{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
...{
//查询操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="select"; //设置操作类型
if(job_desc.Text!="") //当描述框不为空时执行近似“like”查询
fBridge.TransWhere["job_desc","like"]="%"+job_desc.Text+"%";
if(!fTown.ExeQuery(fBridge,ref dsData,ref sError)) //执行查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
dgGrid.DataSource=dsData.Tables[0];
}
private void button2_Click(object sender, System.EventArgs e)
...{
//插入操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="insert"; //设置操作类型
//fBridge.TransValue["job_id"]=job_id.Text; //该列自动增加，不用设置
fBridge.TransValue["job_desc"]=job_desc.Text;
fBridge.TransValue["min_lvl"]=min_lvl.Text;
fBridge.TransValue["max_lvl"]=max_lvl.Text;
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
}
private void button3_Click(object sender, System.EventArgs e)
...{
//修改操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="update"; //设置操作类型
fBridge.TransWhere["job_id"]=job_id.Text; //该列作为更新条件
fBridge.TransValue["job_desc"]=job_desc.Text;
fBridge.TransValue["min_lvl"]=min_lvl.Text;
fBridge.TransValue["max_lvl"]=max_lvl.Text;
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
}
private void button4_Click(object sender, System.EventArgs e)
...{
//删除操作
string sError="";
DataSet dsData=new DataSet();
FrameCountry.FrameTown fTown=new FrameCountry.FrameTown(); //创建主执行类FrameTown对象
FrameCountry.FrameBridge fBridge=new FrameCountry.FrameBridge(); //创建提交字符串类FrameBridge
fBridge.ChapterName="jobs"; //设定操作节点名称
fBridge.CommandName="delete"; //设置操作类型
fBridge.TransWhere["job_id"]=job_id.Text; //该列作为更新条件
if(!fTown.ExeSingleNonQuery(fBridge,ref sError)) //执行非查询操作，当错误返回错误信息到变量sError
MessageBox.Show(sError);
else
MessageBox.Show("操作成功！");
}
}
}
