执行sql update use c#
今天犯了个大错
public static void ChangeGoodsCounts(int GoodsID, int changCounts) { int lastCount; using (SqlConnection conn = new SqlConnection(connStr)) { conn.Open(); using (SqlCommand cmd = conn.CreateCommand()) { cmd.CommandText = "select GoodsCounts from GoodsInf where GoodsID=" + GoodsID; int counts=Convert.ToInt32(cmd.ExecuteScalar()); lastCount = counts + changCounts; cmd.CommandText = "update GoodsInf set GoodsCounts=‘"+lastCount+"‘ where GoodsID=" + GoodsID; cmd.ExecuteNonQuery(); } } }
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