<P>SqlParameter賦值之后怎么添加值</P> <P>用SqlCommand我知道用add <BR>但我想問(wèn)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添加一個(gè)值 <BR>因?yàn)槲覍懥藗€(gè)方法是傳遞SqlParameter類型的參數(shù) <BR>但有時(shí)要做些判斷 <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>//添加一個(gè)參數(shù) <BR>} <BR><BR>ExecuteReader(parm,.....); <BR><BR>請(qǐng)問(wèn)應(yīng)該怎么做呢</P>