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ADO Direction 属性


❮ 参数对象完整参考

Direction 属性设置或返回一个 ParameterDirectionEnum 值,该值指定如何将参数传递到过程或从过程传递出来。默认值为 adParamInput。

它是输入参数、输出参数、输入和输出参数,还是过程的返回值?


语法

objparameter.Direction

示例

<%
set comm=Server.CreateObject("ADODB.Command")
set para=Server.CreateObject("ADODB.Parameter")

para.Type=adVarChar
para.Size=25
para.Direction=adParamInput
para.Value=varfname

comm.Parameters.Append para
%>

ParameterDirectionEnum 值

常量 描述
adParamUnknown 0 方向未知
adParamInput 1 默认值。输入参数
adParamInputOutput 3 输入和输出参数
adParamOutput 2 输出参数
adParamReturnValue 4 返回值

❮ 参数对象完整参考
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