关于AxWebBrowser控件的问题???

[lmywonder]

现在要通过按钮实现类似IE的前进、后退功能，用了此控件的GoForward()方法、GoBack方法，但是如何监测对于当前页，是否还可以前进或后退，否则会报错，请问如何做？？？
现在每次当不可以前进或后退时，提示“未指定的错误”，请大家帮忙

[qqchen79]

Listen on axWebBrower.CommandStateChange event.
The event has two parameters:
1) command (int): UPDATECOMMANDS = 0xFFFFFFFF,
NAVIGATEFORWARD = 0x00000001,
NAVIGATEBACK = 0x00000002
2) status (bool): the status associated with the command

Say, If command=0x00000001 and status=false, then you can't go forward any more. The same applys to backward.

[lmywonder]

不行呀
2) status 此属性没有

[dewy61786]

if((e.command == 0x00000001) && e.enable == false)
{
this.tbbPrePage.Enabled = false;
}