摘要：winform parent 延迟加载usercontrolstatic readonly Lazy<UserControl1> lazy = new Lazy<UserControl1>(() => new UserControl1()); static UserControl1 Instance { get { return lazy.Value; } } public Form1() { InitializeComponent(); } private void tabControl1_SelectedIndexChanged(object ... 阅读全文

摘要：wcf 4.0 中默认对传输数据大小有限制，为65535 字节。如果数据超过此值需要手动进行设置<basicHttpBinding> <binding name="BasicHttpBinding_ChaoBiaoKZ" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647"> <readerQuotas maxArrayLength="2147 阅读全文

摘要：查看分区SQL> select partition_name, High_value from user_tab_partitions where table_name=‘XXXX’;查看分区基于那个字段select * from USER_PART_KEY_COLUMNS ；添加表分区alter table xxxx add partition P200901 values less than (TO_DATE(' 2009-01-31 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREG 阅读全文