VS2010中ActiveX控件"未能实例化activex控件 因为这需要设计时授权"解决办法

用MFC编程时，通过ADO连接数据库，需要用到ADO相关的ActiveX控件，在VC++6.0中是默认有的，但VS2010中必须要手动添加。在对话框中添加控件时，若遇到“未能实例化activex控件 因为这需要设计时授权”提示，解决办法如步骤3。

 

具体步骤如下：

1、下载*.ocx文件

最常用的三个为：MSADODC.OCX，MSDATGRD.OCX，MSDATLST.OCX，并把它们保存在目录C:\Windows\System32下

各个控件需要的文件以及包含的控件如下：

Microsoft ADO Data Control 6.0  MSADODC.OCX ADO Data Control

Microsoft Data Grid Control 6.0  MSDATGRD.OCX  DataGrid 

Microsoft Data List Controls 6.0   MSDATLST.OCX  DataList, DataCombo 

Microsoft Data Bound Grid Control 5.0  DBGRID32.OCX DBGrid 

Microsoft Data Bound List Controls 6.0 DBLIST32.OCX  DBList, DBCombo 

Microsoft Data Repeater Control 6.0  MSDATREP.OCX DataRepeater 

Microsoft FlexGrid Control 6.0  MSFLXGRD.OCX MSFlexGrid 

 

2、注册

开始-->运行/命令提示符-->输入regsvr32 msadodc.ocx，回车后会弹出注册成功提示框

或者在VS的工具-->VisualStdio 命令提示符下输入regsvr32 msadodc.ocx

注册完所有需要的文件之后，在VS2010的工具-->选择工具箱项，COM组件中，找到相应的控件名，勾选并确定。这时在资源视图中就可以右键-->添加ActiveX控件中选择相应控件了

 

3、“未能实例化activex控件 因为这需要设计时授权”解决办法

若添加控件时，弹出提示框“未能实例化activex控件 因为这需要设计时授权”，则可以找到VC++6.0安装文件中的*.reg文件，双击导入注册表。

 

若还未能解决，可新建文本文件，将下面的文字复制，重命名为adocontrol.reg。双击导入注册表，再添加控件就不会提示出错了。

 

 

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