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) ;
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
附：c＃使用cp243控件的源码
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
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)
{
}
}
}
新闻热点
疑难解答
