这样也报错,不运行?
protected void Page_Load(object sender, EventArgs e)
{
if(!Page.IsPostBack)
{
DropDownList2.Enabled = false;
Button1.Enabled = false;
}
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList2.Enabled = true;
}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
Button1.Enabled = true;
}
运行完PAGA_LOAD,随便怎么点DROPDOWNLIST1,,,DropDownList1_SelectedIndexChanged这个都不运行.