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The author:(作者)qqpublished in(发表于) 2014/7/11 9:22:10 C#教程:COM+组件建立客户端程序
C#教程:COM+组件建立客户端程序
建立客户端程序下面将建立客户端程序,设计结果如图1所示。详细步骤如下所示。图1 客户端设计结果图(1)创建一个项目,项目类型为Windows应用程序,设置其名称为35_02,单击【确定】按钮,项目创建成功。(2)向Windows窗体添加5个TextBox控件和一个Button控件,它们分别用于输入银行转账信息和执行银行转账命令。(3)引用EnterpriseServices。选择“项目”/“添加引用”,弹出“添加引用”对话框,在列表中选择System. EnterpriseServices,单击【确定】按钮即可。(4)添加引用COM+服务组件——引用Ex35_01.DLL即可。选择“项目”/“添加引用”,弹出“添加引用”对话框,然后选择“浏览”选项卡,找到注册Ex35_01.DLL文件位置,如图2所示,最后单击【确定】按钮。图2 添加COM+服务组件(5)客户端实现代码。首先,添加Ex35_01命名空间,其次,声明Transfer服务类对象,通过类对象调用银行转账BankTransfer方法,实现转账功能。完整代码如下:using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using Ex35_01;namespace _5_02{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){Transfer tt = new Transfer();bool bl= tt.BankTransfer(txtFromBank.Text, txtFromAccount.Text, txtToBank.Text, txtToAccount.Text, Single. Parse(txtBalance.Text));if (bl)MessageBox.Show("银行转账成功!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon. Information);elseMessageBox.Show("银行转账失败!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);}}}完整程序代码如下:★★★★★Form1.cs窗体代码文件完整程序代码★★★★★using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using Ex35_01;//using System.EnterpriseServices.CompensatingResourceManager;namespace _5_02{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){Transfer tt = new Transfer();bool bl= tt.BankTransfer(txtFromBank.Text, txtFromAccount.Text, txtToBank.Text, txtToAccount.Text, Single.Parse(txtBalance.Text));if (bl)MessageBox.Show("银行转账成功!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);elseMessageBox.Show("银行转账失败!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);}}}★ ★★★★Form1.Designer.cs窗体设计文件完整程序代码★★★★★namespace _5_02{partial class Form1{/// /// 必需的设计器变量。/// private System.ComponentModel.IContainer components = null;/// /// 清理所有正在使用的资源。/// /// 如果应释放托管资源,为 true;否则为 false。protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// /// 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。/// private void InitializeComponent(){this.button1 = new System.Windows.Forms.Button();this.txtFromBank = new System.Windows.Forms.TextBox();this.txtFromAccount = new System.Windows.Forms.TextBox();this.txtToBank = new System.Windows.Forms.TextBox();this.txtToAccount = new System.Windows.Forms.TextBox();
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