摘要:
public static void OperateMapDoc(AxMapControl axMapC,string path, string strOperateType) { try { ///... 阅读全文
摘要:
if (openMxdDialog.ShowDialog() == DialogResult.OK) { pathMXD = openMxdDialog.FileName; if (pa... 阅读全文
摘要:
联合查询效率较高.以下例子来说明联合查询的好处t1表结构(用户名,密码) userid int username varchar(20) password varchar(20) 1 jack jackpwd 2 owen owenpwdt3表结构(用户积分,等级) userid int jf in... 阅读全文