InStr Function to retrieve data

if i have the string

strName=request.form("strName")

where strName is <form name="cv" action="validate/validate.asp" method="post">
<input type="hidden" value="winebottles.jpg" name="downloadFile" /></form>

and i need to retrieve the value of downloadFile.

I was thinking of using an inStr function..

ie..

<% 
		
dim formUsed, pageN,strCheck, initalcheck

		strCheck="name=""downloadFile""
		
		initalcheck=InStr(Request.form("strName"),strCheck)


	if initalcheck > 0 then 
	formUsed=InStr(request.form("strName"), strCheck)
	
	pageN = mid(Request.form("strName"), formUsed)%>

<%=pageN%>

Code (markup):

I need to send the inStr to a certain place and need to get the file name which vary in length as it is a name...

please help

 

why not just use: request.form("downloadFile") ?

 

the thing is the text has come from an editor, so i cant just use request.form

thats what i was saying if you request the text from the previous page it will return

<form name="cv" action="validate/validate.asp" method="post">
<input type="hidden" value="winebottles.jpg" name="downloadFile" /> as the value of the posted text

so i need to do an instr and look for downloadFile to see if a file has been attached, if it has then i need to get the value...

is that any clearer?

thanks...

 

Ok, so

there is a wysiwyg editor where people add text, the html of this will then be saved in the database...

also in this wysiwyg editor is the ability to add forms. so on the next page all this text that may include a form will be saved in the database as html so that this page can then be shown later...

so i need to look at what is been posted from the user

if i use

initalcheck=InStr(Request.form("strName"),"<form")

and initalcheck > 0 then i know that a form has been use


if i use

initalcheck=InStr(Request.form("strName"),"downloadFile")


and initalcheck > 0 then i know that a downloadable file has been used


so what i now need to do is get the value from the page

where the code coming from the editor is

<form name="cv" action="validate/validate.asp" method="post">
<input type="hidden" value="winebottles.jpg" name="downloadFile" /></form>



thats why i was trying to use an inStr to find the word download file and move to the name of the value and then store it...

any clearer?

 

Sounds a wierd and wonderful way to do things, but I'm sure you've got a good reason!

You need to do an instr search for ' value=" ', then find the next double quote which will be at the end of the file name, and then use the vbscript Mid function.

Eg
'find start of the text value
valuestart = instr(strName,"value")

'now we have the position of the v in value, we need to get instr to search for a double quote which is more than 6 characters further on
valueend = instr(valuestart,strname,"""")
'note I had to double up the double quotes to get this to work

'now we should have the start and end positions of the file name we can do
thefilename = mid(strname,valuestart,valueend)



Note - I haven't tested this, and you'll probably find you need to adjust the numbers - eg it might be

valueend = instr(valuestart,strname,"""")+1


cheers

Garve

 

sFormText = getVal(sFormText )

function getVal(sText)
if instr(sText,"<form") then
arText = Split(sText,"<")
for x = 0 to UBound(arText)
sText = replace(arText(x),"<","")
sText = Replace(sText,"/>","")
if instr(sText,"downloadfile") > 0 then
exit for
end if
next
end if
getVal = Mid(sText,instr(sText,"value="""),len(stext))
getVal = Replace(getVal,"value=""","")
getVal = Replace(getVal,"""","")
getVal = Replace(getVal, "name=downloadfile","")
end function

Response.Write sFormText

did the trick!