ADO Value Property
Definition and usage
The Value property can set or return the value of Parameter, Field, or Property objects.
| Object | Description of the Value property |
|---|---|
| Parameter |
The Value value can set or return a variant value indicating the value of the Parameter object. Note: You should close the Recordset object before reading the Value property. For Parameter objects, ADO reads the Value property from the provider only once. |
| Field |
The Value property can set or return a variant value indicating the current value of the Field object. Note: For a new Field object added to the Record's Fields collection, you must first set the Value property and call the Fields collection's Update before setting any other properties. |
| Property |
The Value property can set or return a variant value indicating the current value of the Property object. Note: You cannot set the Value for read-only properties. |
Syntax
objectname.Value
Instance
For the 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 the 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 the 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
%>
