|
The information in this article applies to:
SUMMARY
Moderate: Requires basic macro, coding, and interoperability skills.
When you use an Active Server Pages (ASP) form to add or modify data in a
Microsoft Access database, if you type the percent (%), plus (+) or caret
(^) symbols on the form, those characters may not translate correctly in
the database. This article discusses how to modify your ASP form to enable
you to use those characters.
NOTE: This article contains information about editing ASP files. The
information is provided as is. Microsoft Access Technical Support
Engineers do not support customizing your ASP files.
MORE INFORMATION
When you enter data in an ASP form and commit it, some special characters
are interpreted at the Web server as part of the VBScript code that
executes in the ASP file. When this happens, you may not see the correct
characters in your database because the server tries to intercept them and
process them. If you want to commit those characters to your database as
their keyboard equivalents, you must create a function in the ASP file
that translates them into their hexadecimal escape sequences.
When Microsoft Access 97 creates ASP files, it automatically creates a
VBScript function in the file that translates most special characters back
to their keyboard equivalents, such as the number sign (#) and the
ampersand (&). If you want to use percent, plus or caret symbols, you must
modify the translation function to include those characters as well.
Each form that you export to ASP format creates at least two files:
<FormName>.asp and <FormName>alx.asp. The "alx" file contains the
translation function you need to modify. The following example shows you
how to create and modify an ASP file to accept the percent, plus and caret
symbols.
- Start Microsoft Access and open the sample database Northwind.mdb.
- Select the Customers form in the Database window.
- On the File menu, click Save As/Export.
- In the Save As dialog box, click "To an External File or Database," and
then click OK.
- In the "Save Form 'Customers' In" dialog box, select Microsoft Active
Server Pages (*.asp) in the Save As Type box, and select a folder on
your Web server where you have Execute permission in the Save In box.
Click Export.
- In the Microsoft Active Server Pages Output Options dialog box, type
the name of a System DSN on your Web server that connects to the
Northwind sample database in the Data Source Name box, and type the
uniform resource locator (URL) for the folder on your server where the
ASP forms will reside in the Server URL box. Click OK.
Two files will be created on your Web server computer: Customers.asp
and Customersalx.asp.
- Use a text editor, such as Notepad, to open the Customersalx.asp form
on your Web server.
- Locate the MakeHTMLValue function in the file, which looks as follows:
Function MakeHTMLValue(szVal)
Dim i
Dim szRet
for i = 1 to Len(szVal)
ch = Mid(szVal, i, 1)
if ch = " " Then
szRet = szRet & "%20"
elseif ch = "&" Then
szRet = szRet & "%26"
elseif ch = "#" Then
szRet = szRet & "%23"
elseif ch = """" Then
szRet = szRet & "%22"
elseif ch = ";" Then
szRet = szRet & "%3B"
elseif ch = ":" Then
szRet = szRet & "%3A"
elseif ch = "'" Then
szRet = szRet & "%27"
else
szRet = szRet & Mid(szVal, i, 1)
end if
next
MakeHTMLValue = szRet
End Function
- Modify the MakeHTMLValue function to include the escape sequences for
the percent, plus, and caret symbols so that it looks as follows:
Function MakeHTMLValue(szVal)
Dim i
Dim szRet
for i = 1 to Len(szVal)
ch = Mid(szVal, i, 1)
if ch = " " Then
szRet = szRet & "%20"
elseif ch = "&" Then
szRet = szRet & "%26"
elseif ch = "#" Then
szRet = szRet & "%23"
elseif ch = """" Then
szRet = szRet & "%22"
elseif ch = ";" Then
szRet = szRet & "%3B"
elseif ch = ":" Then
szRet = szRet & "%3A"
elseif ch = "'" Then
szRet = szRet & "%27"
elseif ch = "%" Then
szRet = szRet & "%25"
elseif ch = "+" Then
szRet = szRet & "%2B"
elseif ch = "^" Then
szRet = szRet & "%5E"
else
szRet = szRet & Mid(szVal, i, 1)
end if
next
MakeHTMLValue = szRet
End Function
- Save the Customersalx.asp file and close it.
When you open Customers.asp in your Web program, you will be able to use
percent, plus, or caret symbols in the text boxes on the form in the
Company Name field for example, and those characters will appear correctly
in the Customers table of the Northwind database.
|