异步调用进度条窗体弹出加载数据

异步调用进度条窗体弹出

 

public partial class loadprogressbar : form
{
int losttime = 0;
/// <summary>
/// 是否可以关闭窗体
/// </summary>
public bool closedflag = false;
public loadprogressbar()
{
initializecomponent();
}

public void setprogressmaxvalue(int value, string name)
{
progressbar1.maximum = value;
progressbar1.value = 0;
namelab.text = name;
losttime = 0;
console.writeline("maximum:" + value);
}

public void setvalue(int value, int totalvalue)
{
try
{
losttime = 0;
this.progressbar1.begininvoke(new action(() =>
{
progressbar1.maximum = totalvalue;
int tempvalue = progressbar1.value + value;
if (tempvalue < progressbar1.maximum)
{
speedlab.text = tempvalue.tostring("d2") + "/" + totalvalue.tostring("d2");
progressbar1.value = tempvalue;
}
console.writeline("tempvalue:" + tempvalue);
}));
}
catch
{ }
}

private void loadprogressbar_formclosing(object sender, formclosingeventargs e)
{
if (closedflag == false)
{
if (losttime > 30)
{
this.dialogresult = dialogresult.cancel;
return;
}
if (messagebox.show("正在导出文件，是否要中断？", "提示", messageboxbuttons.yesno, messageboxicon.question) == dialogresult.yes)
{
this.dialogresult = dialogresult.cancel;
}
else
{
e.cancel = true;
//this.dialogresult = dialogresult.cancel;
}

}
else
{
this.dialogresult = dialogresult.ok;
}
}

private void closed_pic_click(object sender, eventargs e)
{
this.close();
}

private void timer1_tick(object sender, eventargs e)
{
losttime++;
if (losttime > 30)
{
this.close();
}
}

}