You need an interop assembly to handle the type conversions.You can archieve this by this way: Rightclick the project name in the solution explorer then open Add References dialog and then select the COM type library of the dialog and then select the COM you want and then click OK
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货