INFO: Add a Text File to a VB6 DHTML Page Dynamically

• Microsoft Visual Basic Professional and Enterprise Editions for Windows, version 6.0

SUMMARY

This article demonstrates how to create a simple DHTML application in Visual Basic 6.0 and add a text file from the user's hard drive to the end of the page.

MORE INFORMATION

WARNING: ANY USE BY YOU OF THE CODE PROVIDED IN THIS ARTICLE IS AT YOUR OWN RISK. Microsoft provides this code "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

The following sample code takes a text file from the local hard drive on the client and appends it to the current DHTML page:

1. Start a new Visual Basic project and select DHTML Application.



2. Open DHTMLPage1 under Designers (Project Explorer).



3. Add a TextField to the page, and set its value property to nothing.



4. Add a Button to the page, and set its value property to "Add File."



5. In the Properties window, select DispIHTMLBodyElement, and set its Id property to "test."



6. For the Button1_OnClick event, add the following code:
   

   
         Private Function Button1_onclick() As Boolean
   
         Dim f As Integer            ' File Handle
         Dim txt As String           ' Holds text of file for
                                     ' processing
         Dim strLoc As Long          ' Holds current location for
                                     ' INSTR
   
         f = FreeFile
   
         If Len(Dir$(TextField1.Value)) > 0 Then
            Open TextField1.Value For Input As #f
                txt = Input$(LOF(f), f)
            Close #f
           else
            test.innerHTML = test.innerHTML & "<BR><BR>File Not Found."
            Exit Function
         End If
   
         ' Convert CR/LF to HTML line break (<BR>) tags.
   
         strLoc = InStr(txt, vbCrLf)
   
         Do While strLoc <> 0
            txt = Mid$(txt, 1, (strLoc - 1)) & "<BR>" _
               & Mid$(txt, strLoc + 2)
            strLoc = InStr(strLoc + 1, txt, vbCrLf)
         Loop
   
         ' Add Contents of Text file to end of DHTML page.
   
         test.innerHTML = test.innerHTML & "<BR><BR>" & txt
   
         End Function
    

1. Run the code and type the name of a text file in the text box.

REFERENCES

For more information on DHTML, please refer to the Developing DHTML Applications topic in the Microsoft Visual Basic product documentation.

(c) Microsoft Corporation 1998, All Rights Reserved. Contributions by Jeremy Earp, Microsoft Corporation

Additional query words: web internet ie explorer kbdsi kbDSupport kbVBp kbVBp600
kbHTML kbDHTML

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Platform : WINDOWS
Issue type : kbinfo