Web Development

Re: how i can to have the all id for HTML controls in the Webpage

25-Oct-07 18:00

The following code will produce an array (ids) containing the IDs for every control on the page that has an id:

function m(a, f)
{
    var ret = [];
    for (var i=0; i<a.length; ++i)
    {
        var val = f(a[i]);
        if ( val != null )
            ret.push(val);
    }
    return ret;
}

var els = document.getElementsByTagName("*");
var ids = m(els, function(el) { return el.id?el.id:null; });

every night, i kneel at the foot of my bed and thank the Great Overseeing Politicians for protecting my freedoms by reducing their number, as if they were deer in a state park. -- C^hris L^osinger, Online Poker Players?

Thaer Hamael27-Oct-07 3:00

Thaer Hamael

27-Oct-07 3:00

Thanks Mr Shog9
but idon't konw the variabel el what it is doing
pleas give the work for it
thanks mr Rose | [Rose]

Thaer

Re: how i can to have the all id for HTML controls in the Webpage

Shog⁹27-Oct-07 5:52

Re: how i can to have the all id for HTML controls in the Webpage

27-Oct-07 5:52

same code, commented:

// map routine - takes one array (a) and function (f), transforms each element of a using f(), 
//  returns array of results.
// f() takes a single parameter (the array element) and returns a result. If said result
//  is null, it will be excluded from the final array.
function m(a, f)
{
    var ret = [];
    for (var i=0; i<a.length; ++i)
    {
        var val = f(a[i]);
        if ( val != null )
            ret.push(val);
    }
    return ret;
}

// retrieve array containing all elements in the document.
var els = document.getElementsByTagName("*");
// retrieve array of IDs for elements that have IDs
var ids = m(els, function(el) 
   { 
      // return the ID if it exists, otherwise null to exclude this element.
      return el.id?el.id:null;
   });

Thaer Hamael27-Oct-07 23:03

Thaer Hamael

27-Oct-07 23:03

iam very thnks mr Shog9
but your code is note work as my need
the code
var els = document.getElementsByTagName("*");
is return the object
i do the follwing
alert(els)// the retuern of this alert is object
and then replace it with
alert(els.id)//this convert return undefind value what is the problem with this
and then
when calling the function m(a,f)
id do this code
function m(a, f)
{
var ret = [];
alert(a.length)//its return the wrong number of element in my page

for (var i=0; i<a.length; ++i)
="" {
="" var="" val="f(a[i]);
" alert(a[i])="" this="" alert="" return="" undefind="" what="" is="" nr="" shong
="" if="" (="" !="null" )
="" ret.push(val);
="" }
="" ret;
}

and="" the="" code=""

var="" ids="m(els," function(el)=""
="" {=""
alert(el);="" itis=""

="" id="" it="" exists,="" otherwise="" null="" to="" exclude="" element.
="" el.id?el.id:null;
="" });

mr="" shon="" pls="" you="" have="" any="" as="" sampel="" and="" can="" give="" me=""
pls="" send=""
thnks="" your="" hellp=""

<div="" class="ForumSig">Thaer

Re: how i can to have the all id for HTML controls in the Webpage

Shog⁹28-Oct-07 8:18

AJAX textchange event then click event

28-Oct-07 8:18

Thaer Hamael wrote:
i do the follwing
alert(els)// the retuern of this alert is object
and then replace it with
alert(els.id)//this convert return undefind value what is the problem with this

els is an array of elements. Some - but not all - of those elements have id attributes. The array itself is not an element, nor does it have an id attribute.

Thaer Hamael wrote:
alert(a.length)//its return the wrong number of element in my page

That's a bold assertion. Do you have an example that demonstrates this? If so, you should send it on to the company responsible for the browser you're testing in, as you've likely found a bug with their implementation of getElementsByTagName().

Thaer Hamael wrote:
alert(a[i])//this alert return undefind

Again, do you have a concrete example of this?

Thaer Hamael wrote:
Mr Shon pls if you have any code as sampel and if you can give me it

I did. I've posted it twice now. If it doesn't work for you, then you need to come up with a reason why.

CandyMe25-Oct-07 3:43

Re: AJAX textchange event then click event

25-Oct-07 3:43

Hi,

I'm using AJAX.

I have a textbox and a button inside an updatepanel.
I have textboxtext changed event for the textbox and a click event for the button.

When I input a text inside the textbox without removing the cursor inside it
then click the button, and perform debug, only the textchange event gets executed,
while it doesn't execute code inside click event.

Please help. I can't simply force call click event inside textchange event of my textbox.

Thank you.

Gerri

Shog⁹25-Oct-07 9:23

Re: AJAX textchange event then click event

25-Oct-07 9:23

CandyMe wrote:
I'm using AJAX.

You're using ASP.NET AJAX - so you might get better answers by posting in the ASP.NET forum (no guarantees though...)

CandyMe wrote:
I have a textbox and a button inside an updatepanel.

The focus change (and thus, the textchange event) happens before the click, so that's what you'll get first. You might want to re-think your strategy a bit - why would you need a text change event when there's a perfectly good button to let you know when the user's done?

CandyMe25-Oct-07 18:03

Disable CompareValidator [modified]

25-Oct-07 18:03

It's because I have a customvalidation. I would like to prompt the user of invalid input without having to click the button yet. I have other controls in the form as well.

Thank you.

Gerri

CandyMe24-Oct-07 19:46

Re: Disable CompareValidator

24-Oct-07 19:46

I have Password and Re-type Password fields.
If the user inputs a password that is less than 6 characters, the user is prompted with a RegExValidator "Minimum of 6 characters."
And if the user inputs a password in Re-Type password that DOESN'T MATCH WITH INVALID PASSWORD, the user is prompted with a CompareValidator "Passwords don't match."

Can I disable the "Passwords don't match" comparevalidator and only prompt it if the user has already ENTERED A VALID PASSWORD in Password field?

Thank you.

-- modified at 9:45 Thursday 25th October, 2007

Gerri

pmarfleet25-Oct-07 8:13

pmarfleet

25-Oct-07 8:13

I'm not sure what is wrong with your current setup. If the user inputs different values in the 2 password input boxes, surely it is correct to notify them that the passwords don't match? This logic still applies if the user enters an invalid password in the first box and a valid password in the second box. The passwords don't match, so it is OK to flag this up.

Paul Marfleet

Re: Disable CompareValidator

CandyMe25-Oct-07 18:01

byte[] memory consumption excedded

25-Oct-07 18:01

Thank you.

Gerri

Navneet Hegde24-Oct-07 4:14

Navneet Hegde

24-Oct-07 4:14

Hi .,
I have webservices method which takes parameter byte[]
this byte[] parameter is compressed Dataset at client-side ,
Now I am Decompressing this at the server side .
All this Compressing and decompressing is done to shrink the size of
dataset , but now the Server pop's the error memory consumption excedded.
Now, do I have any other way to compress Dataset and sent over Webservices?
I did googled this problem but was enable to sort out the problem.

Thanks
Navneet.H

Develop2Program & Program2Develop

Guffa24-Oct-07 9:22

Guffa

24-Oct-07 9:22

Navneet Hegde wrote:
do I have any other way to compress Dataset

Other than what? You haven't even said what method it is that you have tried.

---
"Anything that is in the world when you're born is normal and ordinary and is just a natural part of the way the world works. Anything that's invented between when you're fifteen and thirty-five is new and exciting and revolutionary and you can probably get a career in it. Anything invented after you're thirty-five is against the natural order of things."
-- Douglas Adams

Navneet Hegde24-Oct-07 20:01

Navneet Hegde

24-Oct-07 20:01

Hi .,
Yea,

--The client sends the request as --

<br />
<br />
     byte[] Dataset2Byte;<br />
     Dataset2Byte = CompressDataSet(DSet);<br />
     MyService Service = new MyService.Service<br />
     Service.UpdateTableData(Dataset2Byte ,tablename)<br />
     //This is the Compression function used.<br />
<br />
public byte[] CompressDataSet(DataSet ds)<br />
        {<br />
            try<br />
            {<br />
                BinaryFormatter bnformat = new BinaryFormatter();<br />
                using (MemoryStream memstream = new MemoryStream())<br />
                {<br />
                    bnformat.Serialize(memstream, ds);<br />
                    byte[] bs = memstream.GetBuffer();<br />
<br />
                    MemoryStream output = new MemoryStream();<br />
                    GZipStream ZipIt = new GZipStream(output,  CompressionMode.Compress, true);<br />
<br />
                    ZipIt.Write(bs, 0, bs.Length);<br />
                    ZipIt.Close();<br />
<br />
                    return output.ToArray();<br />
                }<br />
            }<br />
            catch (ApplicationException ex)<br />
            {<br />
                MessageBox.Show(ex.Message);<br />
                return null;<br />
            }<br />
<br />
        }

--- This is at server side webservice -----

     <br />
    public bool UpdateTableData(byte[] byteSet, string TableName)<br />
      {<br />
         // here byte[] byteSet is decompressed to Dataset again<br />
      }<br />
<br />
    private DataSet Decompress(byte[] ds)<br />
    {<br />
        try<br />
        {<br />
            MemoryStream input = new MemoryStream();<br />
            input.Write(ds, 0, ds.Length);<br />
            input.Position = 0;<br />
<br />
            GZipStream Unzipit = new GZipStream(input, 0, true);<br />
            MemoryStream output = new MemoryStream();<br />
<br />
            byte[] bf = new Byte[4096]; { }<br />
            int read = 1;<br />
            read = Unzipit.Read(bf, 0, bf.Length);<br />
            while (read > 0)<br />
            {<br />
                output.Write(bf, 0, read);<br />
                read = Unzipit.Read(bf, 0, bf.Length);<br />
            }<br />
            Unzipit.Close();<br />
            byte[] result = output.ToArray();<br />
<br />
            BinaryFormatter bnformat = new BinaryFormatter();<br />
            using (MemoryStream mStream = new MemoryStream(result))<br />
            {<br />
                return (DataSet)bnformat.Deserialize(mStream);<br />
            }<br />
<br />
        }<br />
        catch (Exception ex)<br />
        {<br />
             throw ex;<br />
        }<br />
    }

This throws the Error : memory consumption excedded
and on server Application Event Log you read recycled mmemory consumption exceeded 60% (267MB of RAM)
Now if I write this byteset to File it is of size 6MB.

Respect

Navneet.H

Develop2Program & Program2Develop

Guffa25-Oct-07 1:08

Guffa

25-Oct-07 1:08

Navneet Hegde wrote:
byte[] bs = memstream.GetBuffer();

The GetBuffer method gives you the underlying array that the MemoryStream is using, including unused space. Use the ToArray method to create an array that only contains the used data.

Navneet Hegde wrote:
MemoryStream input = new MemoryStream();
input.Write(ds, 0, ds.Length);
input.Position = 0;

Just do:

MemoryStream input = new MemoryStream(ds);

Navneet Hegde wrote:
GZipStream Unzipit = new GZipStream(input, 0, true);

Have you verified that CompressionMode.Decompress actually has the value 0?