awWebBrowser自动选择网页Select元素

IHTMLSelectElement Selectelement = (axWebBrowser1.Document as HTMLDocument).getElementById("selectname") as IHTMLSelectElement; for (int i =0;i<Selectelement.length;i++) { IHTMLOptionElement Optionelement = Selectelement.item(i, 0) as IHTMLOptionElement; if (Optionelement.value == "要选择的值") { Selectelement.selectedIndex = i; } }