SqlParameter赋值之后怎么添加值

Question

<P>SqlParameter赋值之后怎么添加值</P> <P>用SqlCommand我知道用add <BR>但我想问的是 &nbsp; SqlParameter <BR><BR>例如 <BR>SqlParameter &nbsp; parm &nbsp; = &nbsp; new &nbsp; SqlParameter(PARM_ORDER_ID, &nbsp; SqlDbType.Int); <BR>parm.Value &nbsp; = &nbsp; orderId; <BR><BR>之后能不能再改parm添加一个值 <BR>因为我写了个方法是传递SqlParameter类型的参数 <BR>但有时要做些判断 <BR>像 <BR>SqlParameter &nbsp; parm &nbsp; = &nbsp; new &nbsp; SqlParameter(PARM_ORDER_ID, &nbsp; SqlDbType.Int); <BR>parm.Value &nbsp; = &nbsp; orderId; <BR><BR>if(...) <BR>{ <BR>//添加一个参数 <BR>} <BR><BR>ExecuteReader(parm,.....); <BR><BR>请问应该怎么做呢</P>