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DataSpace Object and CreateObject Method Example (VBScript)

Important note Important

Beginning with Windows 8 and Windows Server 2012, RDS server components are no longer included in the Windows operating system (see Windows 8 and Windows Server 2012 Compatibility Cookbook for more detail). RDS client components will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Applications that use RDS should migrate to WCF Data Service.

The following example shows how to use the CreateObject method of the RDS.DataSpace with the default business object, RDSServer.DataFactory. To test this example, cut and paste this code between the <Body> and </Body> tags in a normal HTML document and name it DataSpaceVBS.asp. ASP script will identify your server.

<!-- BeginDataSpaceVBS -->
<html>
<head>
<!--use the following META tag instead of adovbs.inc-->
<!--METADATA TYPE="typelib" uuid="00000205-0000-0010-8000-00AA006D2EA4" -->
    <meta name="VI60_DefaultClientScript"  content=VBScript>
    <meta name="GENERATOR" content="Microsoft Visual Studio 6.0">
    <title>DataSpace Object and CreateObject Method Example (VBScript)</title>
<style>
<!--
body {
   font-family: 'Verdana','Arial','Helvetica',sans-serif;
   BACKGROUND-COLOR:white;
   COLOR:black;
    }
.thead {
   background-color: #008080; 
   font-family: 'Verdana','Arial','Helvetica',sans-serif; 
   font-size: x-small;
   color: white;
   }
.thead2 {
   background-color: #800000; 
   font-family: 'Verdana','Arial','Helvetica',sans-serif; 
   font-size: x-small;
   color: white;
   }
.tbody { 
   text-align: center;
   background-color: #f7efde;
   font-family: 'Verdana','Arial','Helvetica',sans-serif; 
   font-size: x-small;
    }
-->
</style>
</head>

<body>
<h1>DataSpace Object and CreateObject Method Example (VBScript)</h1>

<H2>RDS API Code Examples</H2>
<HR>
<H3>Using Query Method of RDSServer.DataFactory</H3>

<!-- RDS.DataSpace  ID rdsDS-->
<OBJECT ID="rdsDS" WIDTH=1 HEIGHT=1
CLASSID="CLSID:BD96C556-65A3-11D0-983A-00C04FC29E36">
</OBJECT>

<!-- RDS.DataControl with parameters set at run time -->
<OBJECT classid="clsid:BD96C556-65A3-11D0-983A-00C04FC29E33"
   ID=RDS WIDTH=1 HEIGHT=1>
</OBJECT>

<TABLE DATASRC=#RDS>
<TBODY>
  <TR>
    <TD><SPAN DATAFLD="FirstName"></SPAN></TD>
    <TD><SPAN DATAFLD="LastName"></SPAN></TD>
  </TR>
</TBODY>
</TABLE>

<HR>
<INPUT TYPE=BUTTON NAME="Run" VALUE="Run">

<H4>Click Run -
The <i>CreateObject</i> Method of the RDS.DataSpace Object Creates an instance of the RDSServer.DataFactory.
The <i>Query</i> Method of the RDSServer.DataFactory is used to bring back a Recordset.</H4>

<Script Language="VBScript">

    Dim rdsDF
    Dim strServer
    Dim strCnxn
    Dim strSQL

    strServer = "http://<%=Request.ServerVariables("SERVER_NAME")%>"
    strCnxn = "Provider='sqloledb';Data Source=" & _
            "<%=Request.ServerVariables("SERVER_NAME")%>" & ";" & _
            "Integrated Security='SSPI';Initial Catalog='Northwind';"
    strSQL = "Select FirstName, LastName from Employees"

    Sub Run_OnClick()
              
       Dim rs      
        ' Create Data Factory
       Set rdsDF = rdsDS.CreateObject("RDSServer.DataFactory", strServer)
        'Get Recordset  
       Set rs = rdsDF.Query(strCnxn, strSQL)   
       ' Use  RDS.DataControl to bind Recordset to data-aware Table above
       RDS.SourceRecordset = rs

    End Sub
</Script>

</body>
</html>
<!-- EndDataSpaceVBS -->

The following example shows how to use the CreateObject method to create an instance of a custom business object, VbBusObj.VbBusObjCls. It also uses the Active Server Pages scripting to identify the Web server name.

To see the complete example, open the sample applications selector. In the Client Tier column, select VBScript in Internet Explorer. In the Middle Tier column, select Custom Visual Basic Business Object.

NoteNote

If you are connecting to a data source provider that supports Windows authentication, you should specify Trusted_Connection=yes or Integrated Security = SSPI instead of user ID and password information in the connection string.

Sub Window_OnLoad()
   strServer = "http://<%=Request.ServerVariables("SERVER_NAME")%>"
   Set BO = ADS1.CreateObject("VbBusObj.VbBusObjCls", strServer)
   txtConnect.Value = "dsn=Pubs;uid=MyUserID;pwd=MyPassword;"
   txtGetRecordset.Value = "Select * From authors for Browse"
End Sub
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