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The Value property sets or returns the value of a Parameter, Field, or Property object.
Value属性的作用是:设置或返回一个参数、字段或属性对象的值。
Object 对象 | Description of the Value Property Value属性描述 |
---|---|
Parameter | The Value property sets or returns a variant that indicates the value of the Parameter object Value属性设置或返回了一个用来指示Parameter[参数]对象的值 Note: The Recordset should be closed before you try to read the Value property. ADO can only read the Value property once from the provider |
Field | The Value property sets or returns a variant that indicates the current value of the Field object Note: For a new Field object that are added to the Fields collection of a Record, you must first set the Value property and perform an update before you can set any other property |
Property | The Value property sets or returns a variant that indicates the current value of the Property object Value属性设置或返回了一个用来指示当前Property[属性]对象的值 Note: You cannot set the Value for properties that are read-only |
objectname.Value |
For a Field object: <% set conn=Server.CreateObject("ADODB.Connection") conn.Provider="Microsoft.Jet.OLEDB.4.0" conn.Open "c:/webdata/northwind.mdb" set rs = Server.CreateObject("ADODB.Recordset") rs.open "Select * from orders", conn response.write(rs.Fields(0).Value) rs.Close conn.close %> For a Parameter object: <% 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 %> For a Property object: <%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb" set rs = Server.CreateObject("ADODB.Recordset") rs.open "Select * from orders", conn set prop=Server.CreateObject("ADODB.Property") 'Display the property attributes of the Orders Table
for each prop in rs.Properties response.write("Attr:" & prop.Attributes & "<br />") response.write("Name:" & prop.Name & "<br />") response.write("Value:" & prop.Value & "<br />")
next rs.close
conn.close
set rs=nothing
set conn=nothing
%> |