ASP.NET

Re: checkbox validation [modified]

21-Nov-07 0:42

Prakash_Mishra wrote:
Can any one tell me how to validate a group check box or check box list

You need to write Client-Side Javascript for CheckBox Validation.

- Regards -
JON

Life is not measured by the amount of breaths we take, but by the moments that take our breath away.

Sun Rays21-Nov-07 0:44

Sun Rays

21-Nov-07 0:44

Hi,
do this.

On button's ClientClick Call the function of Javascript.

<script type="text/javascript">

function MyCheckBoxList()
{

var flag=0;
var MyChkLst= document.getElementById ("CheckBoxList ID");
var arrayOfCheckBoxes= MyChkLst.getElementsByTagName("input");
for(counter = 0; counter<arrayOfCheckBoxes.length; counter++)
{
if (arrayOfCheckBoxes[counter].checked)
{
flag=1;
}
else
{
alert("not checked");
return false;
}
}
if(flag==1)
{
alert('checked');
return true;
}
}
</script>

-- modified at 7:41 Wednesday 21st November, 2007

Thanks,
Sun Rays

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Re: checkbox validation

Prakash_Mishra21-Nov-07 1:06

Prakash_Mishra

21-Nov-07 1:06

for(counter = 0; counter

can u pl write the full code for this line its missing there

Thanks

Prakash Mishra(Banglore,India)

Re: checkbox validation

Prakash_Mishra21-Nov-07 2:08

Prakash_Mishra

21-Nov-07 2:08

Thanks a lot

Prakash Mishra(Banglore,India)

Re: checkbox validation [modified]

mykosher21-Nov-07 1:25

mykosher

21-Nov-07 1:25

Hi,

you can do that using javascript .
call one common function on each and every checkbox checked and set one flag value in hidden field and check this flag when you submit.

<checkbox onclick="CallMe(this.id)">

function CallMe(id)
{

if(document.getElementByID(id).chekced==true)
{
//set hidden field value to true
}
else
{
//set hidden field value to false

}
}

Big Grin | :-D

-- modified at 7:33 Wednesday 21st November, 2007

window authentication

Sonia Gupta21-Nov-07 0:05

Sonia Gupta

21-Nov-07 0:05

i unchecked the annonymous access in internet information services for the virtual directory of my project.now how should i validate whether the user is authorized to view th page.I mean should i create the database for the ip address .i mean the user can be a guest or can be an administrator .how i will get to know whether that one is authoried to view the page?

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Re: window authentication

Pete O'Hanlon21-Nov-07 0:18

Pete O'Hanlon

21-Nov-07 0:18

If you have bought a book as has been recommended oh so many times, then you need to look in the chapter that is probably titled something like Security or Role Management. There you will find all you need on role and membership providers. You still haven't answered the question that was posed before; do you do this for a living or are you learning this stuff on your own?

Deja View - the feeling that you've seen this post before.

My blog | My articles

How to get MAC address of a remote machine using ASP.NET..?

Balagurunathan S20-Nov-07 23:46

Balagurunathan S

20-Nov-07 23:46

Dear Friends..

I am developing a web application in ASP.net.If any user login to my application(site), i need to get the MAC address of the users machine who are all logging in to my site .How to do it..Some one give the relevant code as early as possible..I need to use this code in my .aspx page itself..

Balaguru

Re: How to get MAC address of a remote machine using ASP.NET..?

Sandeep Akhare20-Nov-07 23:49

Sandeep Akhare

20-Nov-07 23:49

Check the Request object there you will find the IP address as you get for other OS

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Re: How to get MAC address of a remote machine using ASP.NET..?

Balagurunathan S21-Nov-07 0:01

Balagurunathan S

21-Nov-07 0:01

Dear Sandeep..

Could u be more specific..I am not getting you what u r saying..

Balaguru

Re: How to get MAC address of a remote machine using ASP.NET..?

Balagurunathan S21-Nov-07 0:06

Balagurunathan S

21-Nov-07 0:06

Dear Sandeep..

Could u be more specific..I am not getting u..

Balaguru

Re: How to get MAC address of a remote machine using ASP.NET..?

Sandeep Akhare21-Nov-07 0:16

Sandeep Akhare

21-Nov-07 0:16

Just check the methods present in Request object like
Request.UserHostAddress i think it will return IP adress of client machine

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

How to use ASP.Net with Javascript?

blooper0220-Nov-07 23:45

Re: How to use ASP.Net with Javascript? [modified]

20-Nov-07 23:45

Hi guys,

I have a problem here that I have been unsucessful at solving.

I have a form for user to fill in.

On button click, I perform a series of validations.

Only when the validations pass, I open up a confirm box using javascript.

When the user clicks "OK" I proceed to save the information.
When the user click "Cancel" I refrain from saving the information.

In pseudo code its like this:

btnSave_Click(object sender, EventArgs e)
{
string status= ValidateData();

if(status=="OK")
{
//bring out the confirm box in javascript
ClientScript.RegisterStartupScript(this.GetType(), "ConfirmationPopUp", "getMessage('" + mess.ToString() + "')");
if(userClickOk=="OK")
{
SaveData();
}
}
}

I finally understand that i need a postback from the confirm popup to finally run the SaveData();

So in my java script i try to save the answer in a HiddenField and then on post back check the reply and run SaveData() if the answer is yes.

my Javascript goes like this:

function getMessage(a)
{
var ans;
ans=window.confirm(a);
//ans=;
//alert (ans);
if (ans==true)
{
this.ctl00_ContentPlaceHolder1_HiddenField1.value='Yes';
__doPostBack("","");

}
else
{
this.ctl00_ContentPlaceHolder1_HiddenField1.value='No';
__doPostBack("","");
}
}

However when i try to save the answer in the HiddenField1. I get error that says
this.ctl00_ContentPlaceHolder1_HiddenField1 is null or not an object.

What is wrong? here? I have also tried to save in a session variable which is also not possible?

Please advise how i can achieve this? Is this the right way to do it?

Thanks so much.

Sun Rays20-Nov-07 23:49

Sun Rays

20-Nov-07 23:49

blooper02 wrote:
this.ctl00_ContentPlaceHolder1_HiddenField1.value='No';

Hi,
u can not do like this.
Try this.

var MyHDN = Document.GetelementById("Give hidden field's clientID");<br />
MyHDN.value = "No";

-- modified at 0:19 Thursday 22nd November, 2007

Thanks,
Sun Rays

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J4amieC21-Nov-07 0:14

J4amieC

21-Nov-07 0:14

Sun Rays wrote:
var MyHDN = Documetn.GetelementByID("Give hidden field's clientID");
MyHDN.value = "No";

wow. That couldnt get more wrong if it tried.

JS is case sensitive. So Documetn[sic] should be document and GetelementByID[sic] would be getElementById.

blooper0221-Nov-07 16:02

21-Nov-07 16:02

It works!

Thanks guys....

My old method this.ctl00_ContentPlaceHolder1_HiddenField1.value='Yes';

works when i created a new webpage but my current project which had a masterpage, it does not work.....

thanks thanks

John-ph20-Nov-07 23:56

20-Nov-07 23:56

You don't have to neccessarily do a PostBack for a confirm message. What is wrong in doing the other way round. prompt a Javascript Confirm Message first and If it's Ok, then do a PostBack for the neccessary server-side validation and saving of Data. If validation fails then Alert a error message otherwise Save the data. I guess this is the correct sequence that will solve the problem and minimize the server round trip as well.

- Regards -
JON

Life is not measured by the amount of breaths we take, but by the moments that take our breath away.

blooper0221-Nov-07 14:14

21-Nov-07 14:14

Thanks to Sunray and Jamie for the advise Smile | :)

JON,

My server side validation validates to make sure he do not key in rubbish.

I intend to put most of the information that the user key in the confirm box for him to do final check.

When he clicks OK then I save.

What I worry is that the users may claim that if my system so smart to detect their rubbish data, why pop-up and ask them to confirm in the first place?

Do you or others in the developement field face this problem?

Thanks

John-ph21-Nov-07 19:49

21-Nov-07 19:49

blooper02 wrote:
Do you or others in the developement field face this problem?

This is not a problem. Actually we are discussing about which is the right way to do such a thing. my point here is it's unnecessary to have 2 server-round trips to save the data.

- Regards -
JON

Life is not measured by the amount of breaths we take, but by the moments that take our breath away.

blooper0221-Nov-07 21:19

21-Nov-07 21:19

Hi Jon,

I feel that your advice is correct.

Therefore I tried to call the confirm box at OnClientClick.

My Server Validation still runs and triggers fine. But my Validation controls like regular expressions validator did not fire. You know why?

thanks

John-ph21-Nov-07 23:10

21-Nov-07 23:10

Check Whether the CausesValidation Property of the Button Control is set to True

- Regards -
JON

Life is not measured by the amount of breaths we take, but by the moments that take our breath away.

blooper0221-Nov-07 23:28

21-Nov-07 23:28

Hi Jon,

Yes it is set to true....

But it just does not fire...

Any other possibilities?

John-ph21-Nov-07 23:49

21-Nov-07 23:49

Are you calling any JavaScript function on the Button Click? If yes then it will skip the script validation of the validation Controls. One Alternate to this problem to add the following Code at the end of JavaScript function which you have written.

if (typeof(Page_ClientValidate) == 'function'){ <br />
 Page_ClientValidate();<br />
 return true;<br />
}

This will call the JavaScript Validation code generated for the Validation Controls.

- Regards -
JON

Life is not measured by the amount of breaths we take, but by the moments that take our breath away.

blooper0222-Nov-07 16:07

22-Nov-07 16:07

Hi Jon,

I am putting the code as

return confirm('Do you want to confirm this application?');

in the onclientclick property as in the visual studio GUI.

I hope to be able to do it this was as I will be using more of the confirm boxes for my buttons in my gridview.

blooper0222-Nov-07 21:59