第一步：在C＃的工具条右击，在右键菜单上单击“选择项”选项，如下图
第二步：在COM组件中，选中所需的控件即可（这点和VB中完全一样）
这时候，COM控件和C＃控件就一样使用了。但是，VB中的一些特有的命令，如动态数组和C＃有很大不同，
请参考如下代码
VB代码：
dim lngData( ) as long
call CP243Client1.ReadData(1, lngData(), 3,CP_B, CP_V)
C＃代码：
System.Array lngData=new Int32[1024];
CP243TCPS.CP241LEN a=CP243TCPS.CP241LEN.CP_B; CP243TCPS.CP241TYPE b=CP243TCPS.CP241TYPE.CP_V; cp243.ReadData(1, ref lngData, 3, ref a,ref b) ;
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附：C＃使用CP243控件的源码
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using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;
namespace CP243{ /// <summary> /// Form1 的摘要说明。 /// </summary> public class frmTest : System.Windows.Forms.Form { private System.Windows.Forms.Button cmdConn; private System.Windows.Forms.PictureBox picFlag; private AxCP243TCPS.AxCP243Client cp243; private System.Windows.Forms.Button cmdClose; private System.Windows.Forms.TextBox txtData; private System.Windows.Forms.CheckBox chkAuto; private System.Windows.Forms.Timer timer1; private System.Windows.Forms.Button cmdRead; private System.Windows.Forms.Label label1; private System.Windows.Forms.TextBox txtIP; private System.Windows.Forms.Label label2; private System.Windows.Forms.TextBox txtAddr; private System.Windows.Forms.Button cmdWrite; private System.ComponentModel.IContainer components;
public frmTest() { // // 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 ); }
#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.components = new System.ComponentModel.Container(); System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmTest)); this.cp243 = new AxCP243TCPS.AxCP243Client(); this.cmdConn = new System.Windows.Forms.Button(); this.picFlag = new System.Windows.Forms.PictureBox(); this.cmdClose = new System.Windows.Forms.Button(); this.txtData = new System.Windows.Forms.TextBox(); this.chkAuto = new System.Windows.Forms.CheckBox(); this.timer1 = new System.Windows.Forms.Timer(this.components); this.cmdRead = new System.Windows.Forms.Button(); this.label1 = new System.Windows.Forms.Label(); this.txtIP = new System.Windows.Forms.TextBox(); this.label2 = new System.Windows.Forms.Label(); this.txtAddr = new System.Windows.Forms.TextBox(); this.cmdWrite = new System.Windows.Forms.Button(); ((System.ComponentModel.ISupportInitialize)(this.cp243)).BeginInit(); this.SuspendLayout(); // // cp243 // this.cp243.Enabled = true; this.cp243.Location = new System.Drawing.Point(168, 40); this.cp243.Name = "cp243"; this.cp243.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("cp243.OcxState"))); this.cp243.Size = new System.Drawing.Size(143, 101); this.cp243.TabIndex = 0; // // cmdConn // this.cmdConn.Location = new System.Drawing.Point(240, 8); this.cmdConn.Name = "cmdConn"; this.cmdConn.Size = new System.Drawing.Size(56, 24); this.cmdConn.TabIndex = 1; this.cmdConn.Text = "连接"; this.cmdConn.Click += new System.EventHandler(this.cmdConn_Click); // // picFlag // this.picFlag.BackColor = System.Drawing.Color.Red; this.picFlag.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; this.picFlag.Location = new System.Drawing.Point(8, 8); this.picFlag.Name = "picFlag"; this.picFlag.Size = new System.Drawing.Size(24, 24); this.picFlag.TabIndex = 2; this.picFlag.TabStop = false; // // cmdClose // this.cmdClose.Location = new System.Drawing.Point(304, 8); this.cmdClose.Name = "cmdClose"; this.cmdClose.Size = new System.Drawing.Size(56, 24); this.cmdClose.TabIndex = 3; this.cmdClose.Text = "断开"; this.cmdClose.Click += new System.EventHandler(this.cmdClose_Click); // // txtData // this.txtData.Location = new System.Drawing.Point(88, 176); this.txtData.Name = "txtData"; this.txtData.Size = new System.Drawing.Size(272, 21); this.txtData.TabIndex = 4; this.txtData.Text = ""; // // chkAuto // this.chkAuto.Location = new System.Drawing.Point(304, 144); this.chkAuto.Name = "chkAuto"; this.chkAuto.Size = new System.Drawing.Size(64, 24); this.chkAuto.TabIndex = 5; this.chkAuto.Text = "连续读"; this.chkAuto.CheckedChanged += new System.EventHandler(this.chkAuto_CheckedChanged); // // timer1 // this.timer1.Interval = 500; this.timer1.Tick += new System.EventHandler(this.timer1_Tick); // // cmdRead // this.cmdRead.Location = new System.Drawing.Point(16, 144); this.cmdRead.Name = "cmdRead"; this.cmdRead.Size = new System.Drawing.Size(64, 24); this.cmdRead.TabIndex = 6; this.cmdRead.Text = "读"; this.cmdRead.Click += new System.EventHandler(this.cmdRead_Click); // // label1 // this.label1.Location = new System.Drawing.Point(40, 13); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(112, 16); this.label1.TabIndex = 7; this.label1.Text = "IP"; // // txtIP // this.txtIP.Location = new System.Drawing.Point(64, 10); this.txtIP.Name = "txtIP"; this.txtIP.Size = new System.Drawing.Size(152, 21); this.txtIP.TabIndex = 8; this.txtIP.Text = "192.168.0.166"; // // label2 // this.label2.Location = new System.Drawing.Point(16, 181); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(40, 16); this.label2.TabIndex = 9; this.label2.Text = "地址"; // // txtAddr // this.txtAddr.Location = new System.Drawing.Point(48, 176); this.txtAddr.Name = "txtAddr"; this.txtAddr.Size = new System.Drawing.Size(32, 21); this.txtAddr.TabIndex = 10; this.txtAddr.Text = "0"; // // cmdWrite // this.cmdWrite.Location = new System.Drawing.Point(88, 144); this.cmdWrite.Name = "cmdWrite"; this.cmdWrite.Size = new System.Drawing.Size(64, 24); this.cmdWrite.TabIndex = 11; this.cmdWrite.Text = "写"; this.cmdWrite.Click += new System.EventHandler(this.cmdWrite_Click); // // frmTest // this.AutoScale = false; this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(376, 214); this.Controls.Add(this.cmdWrite); this.Controls.Add(this.txtAddr); this.Controls.Add(this.label2); this.Controls.Add(this.txtIP); this.Controls.Add(this.label1); this.Controls.Add(this.cmdRead); this.Controls.Add(this.chkAuto); this.Controls.Add(this.txtData); this.Controls.Add(this.cmdClose); this.Controls.Add(this.picFlag); this.Controls.Add(this.cmdConn); this.Controls.Add(this.cp243); this.Name = "frmTest"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "CP243测试"; this.TopMost = true; this.Load += new System.EventHandler(this.frmTest_Load); ((System.ComponentModel.ISupportInitialize)(this.cp243)).EndInit(); this.ResumeLayout(false);
} #endregion
/// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.Run(new frmTest()); }
private void cmdConn_Click(object sender, System.EventArgs e) { int lngRet; string strIP=txtIP.Text; int intPort=102; //cp243.RemoteHost=str; //cp243.RemotePort =intPort; lngRet=cp243.OpenConnect(ref(strIP),ref(intPort)); if(lngRet==0) { picFlag.BackColor=System.Drawing.Color.Green; } else { picFlag.BackColor=System.Drawing.Color.Red ; } }
private void cmdClose_Click(object sender, System.EventArgs e) { cp243.CloseConnect(); picFlag.BackColor=System.Drawing.Color.Red ; }
private void chkAuto_CheckedChanged(object sender, System.EventArgs e) { timer1.Enabled= chkAuto.Text=="0"? false:true;
}
private void cmdRead_Click(object sender, System.EventArgs e) { System.Array lngData=new Int32[1024];
CP243TCPS.CP241LEN a=CP243TCPS.CP241LEN.CP_B; CP243TCPS.CP241TYPE b=CP243TCPS.CP241TYPE.CP_V; if (cp243.ReadData(Convert.ToInt32(txtAddr.Text), ref lngData, 3, ref a,ref b) == 0) { txtData.Text =lngData.GetValue(0).ToString(); } } private void cmdWrite_Click(object sender, System.EventArgs e) { System.Array lngData=new Int32[1024];
CP243TCPS.CP241LEN a=CP243TCPS.CP241LEN.CP_B; CP243TCPS.CP241TYPE b=CP243TCPS.CP241TYPE.CP_V; lngData.SetValue(Convert.ToInt32(txtData.Text),0); if (cp243.WriteData(Convert.ToInt32(txtAddr.Text), ref lngData, 1, ref a,ref b) != 0) { txtData.Text ="ERROR"; } }
private void timer1_Tick(object sender, System.EventArgs e) { cmdRead_Click(sender,e); }
private void frmTest_Load(object sender, System.EventArgs e) { }
}}
