| 发表于：2007-01-08 01:11:22 楼主 |
用多线程执行datagrid，动态的加入一行，为什么记录超出datagrid的在窗口的高度，就会有两个滚动条呢？我代码哪有错呢？
using system;
using system.drawing;
using system.collections;
using system.componentmodel;
using system.windows.forms;
using system.data;
using system.threading;
namespace windowsapplication4
{
/// <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.datagrid datagrid1;
private system.componentmodel.icontainer components;
private arraylist aa=new arraylist（);
private datatable dt = new datatable（);
private datarow dr;
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 );
}
#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.datagrid1 = new system.windows.forms.datagrid（);
（（system.componentmodel.isupportinitialize)（this.datagrid1)).begininit（);
this.suspendlayout（);
//
// button1
//
this.button1.location = new system.drawing.point（376, 16);
this.button1.name = "button1 ";
this.button1.tabindex = 0;
this.button1.text = "button1 ";
this.button1.click += new system.eventhandler（this.button1_click);
//
// datagrid1
//
this.datagrid1.datamember = " ";
this.datagrid1.headerforecolor = system.drawing.systemcolors.controltext;
this.datagrid1.location = new system.drawing.point（16, 8);
this.datagrid1.name = "datagrid1 ";
this.datagrid1.size = new system.drawing.size（280, 288);
this.datagrid1.tabindex = 1;
//
// form1
//
this.autoscalebasesize = new system.drawing.size（6, 14);
this.clientsize = new system.drawing.size（488, 325);
this.controls.add（this.datagrid1);
this.controls.add（this.button1);
this.name = "form1 ";
this.text = "form1 ";
this.load += new system.eventhandler（this.form1_load);
（（system.componentmodel.isupportinitialize)（this.datagrid1)).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 form1_load（object sender, system.eventargs e)
{
dt.columns.add（new datacolumn（ "编号 ", typeof（int32)));
dr = dt.newrow（);
dr[0] = 1;
dt.rows.add（dr);
dataview dv = new dataview（dt);
datagrid1.datasource=dt;
}
private void button1_click（object sender, system.eventargs e)
{
thread t=new thread（new threadstart（showrandom));
t.isbackground=true;
t.priority=threadpriority.belownormal;
t.start（);
}
public void showrandom（)
{
int temp_a;
for（int temp_s=2;（temp_s <50);temp_s++)
{
random random = new system.random（);
temp_a=random.next（0,100);
thread.sleep（10);
dr = dt.newrow（);
dr[0] = temp_s.tostring（);
dt.rows.add（dr);
}
}
}
}
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