get all the form fields in a form

  • Thread starter Thread starter Mr. SweatyFinger
  • Start date Start date
M

Mr. SweatyFinger

I'll never understand this

for each ?? in request.form.items
response.write ??

next

what the heck is ?? and how do yo dim it?
can it be any name?
 
I'll never understand this
for each ?? in request.form.items
response.write ??

next

what the heck is ?? and how do yo dim it?
can it be any name?
Click to expand...

Dim entryName as String

for each entryName in Request.Form
Response.Write("Name: " & entryName & "<br/>")
Response.Write("Value: " & Request.Form[entryName] & "<br/>")
next


HTH


--
Happy Hacking,
Gaurav Vaish | www.mastergaurav.com
www.edujini-labs.com
http://eduzine.edujinionline.com
-----------------------------------------
 
Hi Mr.,

foreach (string key in Request.Form.AllKeys)
{
Response.Write(key);
Response.Write("=");
Response.Write(Request.Form[key]);
Response.Write("<br>");
}
 
For Each makes a loop through items in collection of Request.Form,
and item is a string, specifying the name of the form field that's being
sent

Dim Item as String

For Each Item in Request.Form
Response.Write Item
Response.Write Request.Form(Item)
Next
 
I know off topic,

Why off-topic...? This is an ASP.NET newsgroup after all... :-)
anyone here know of a C# equivelent?
Click to expand...

foreach (string strKey in Request.Form)
{
Response.Write(strKey);
Response.Write "=";
Response.Write(Request.Form[strKey].ToString());
Response.Write("<br />");
}
 
That's what I don't get.
if item can be named anything...

how does the procedure know that I want items, as opposed to any of the
other properties?
 
The collection of Request.Form has only item names and you can't get other
properties.

It is the same with any other collection, for example, when you have an
array of strings

Dim lines As String()
Dim line As String
For Each line In lines
Next

This code enumerates the strings in array.
 
well, given a collection, how are you supposed to know which is the default
property??
 
What do you mean by default property of collection?

According to MSDN:

Request.Form gets a collection of form variables. Its property value is
a NameValueCollection representing a collection of form variables. And
NameValueCollection Class represents a sorted collection of associated
String keys and String values that can be accessed either with the key
or with the index.

In other words, Request.Form is a collection of strings {"aa", "bb",
"cc"...}.

"aa" is a string which represent a name of a form variable

No properties.
 
what I mean is there are several properties of a form field

when i loop through the "items", how am I supposed to know which of the
properties i am looping through

for instance, request.form has items, keys, allkeys, count.

why doesn't this pull in the keys, rather than the items.

For Each entryName In Request.Form

Response.Write("Name: " & entryName & "<br/>")

Response.Write("Value: " & Request.Form(entryName) & "<br/>")

Next
 
Maybe the OP was referring to the default order of retrieval ?

When you do a call to the default Request collection,
each of the sub collections are searched in the following order:

1. QueryString
2. Form
3. Cookies
4. ClientCertificates
5. ServerVariables

The process stops when the first match is found.

Unfortunately, if there's same-name items in two or more sub collections,
you aren't guaranteed to receive the data you're looking for.

That's why you shouldn't use : Request("name")

You should use Request.Form("name") or Request.Cookies("name")
or Request.QueryString("name"), etc., always specifying the sub collection
you want to retrieve data from.




Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
===================================
 
Well, the question was about Request.Form as I see. Anyway, you're
right, it has to be more detailed
 
well, given a collection, how are you supposed to know which is the
default
property??
Click to expand...

I have a small suggestion for you.
Go through the basics of .Net Framework, VB.Net and Collections-API before
starting with ASP.Net

And I'm damn serious. You may really mess up your ASP.Net learning
otherwise.


--
Happy Hacking,
Gaurav Vaish | www.mastergaurav.com
www.edujini-labs.com
http://eduzine.edujini-labs.com
-----------------------------------------
 
what I mean is there are several properties of a form field

when i loop through the "items", how am I supposed to know which of the
properties i am looping through

for instance, request.form has items, keys, allkeys, count.

why doesn't this pull in the keys, rather than the items.

For Each entryName In Request.Form

Response.Write("Name: " & entryName & "<br/>")

Response.Write("Value: " & Request.Form(entryName) & "<br/>")

Next
Click to expand...

For Each...Next loop is designed for collections and arrays only. It
means you could loop through elements of a collection or array only.

You can't loop through Count property because it's not a collection.

You can loop through Request.Form, Request.Form.Keys or
Request.Form.AllKeys collections.

For Each entryName In Request.Form.Keys
Response.Write("Name: " & entryName & "<br/>")
Response.Write("Value: " & Request.Form(entryName) & "<br/>")
Next

or

Dim loop1 As Integer
Dim arr1() As String
arr1 = Request.Form.AllKeys
For loop1 = 0 To arr1.GetUpperBound(0)
Response.Write("Form: " & arr1(loop1) & "<br>")
Next loop1
 
so how do you look at the screen and see what is a collection and what is
not?

what tells you? is there a certain color icon?
 
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