ASP.NET

Motherboard serial of client machine?

3-Oct-09 6:35

But without downloading how could you get the files?
You can list the files using FTP list command but that will also list files that are corrupted during uploading.

Smile | :)

Abhishek Sur
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_Madmatt2-Oct-09 8:48

_Madmatt

2-Oct-09 8:48

Hello,

I think this is my first post here. But I've already used a lot of your codes here! Thanks a lot for them! Laugh | :laugh:

Now it's my turn to ask a question Wink | ;)

Is it possible to get the serial number of the motherboard via ASP.NET? This would me interesting to send the license key of my software automatically.
If this is possible, can someone give me an exaple?

Thanks a lot!
Madmatt.

Abhijit Jana2-Oct-09 8:58

2-Oct-09 8:58

_Madmatt wrote:
Is it possible to get the serial number of the motherboard via ASP.NET? This would me interesting to send the license key of my software automatically.

As it is Client Machine, then you can only think about JavaScript. But Javascript does have that much rights to access your system information. So you can't do it using JavaScript.

This can be done with ActiveX control. Smile | :)

But this will run only on IE.

Other option that you can try is "Java Applet". Smile | :)

But for that all clients need JRE installed and Enabled in Browser .

Hope this information is helpful to you !! Big Grin | :-D

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

_Madmatt2-Oct-09 9:11

_Madmatt

2-Oct-09 9:11

This information was very helpfull. But, if you have time to make it, can you make a class to do this?

Abhijit Jana2-Oct-09 10:29

2-Oct-09 10:29

_Madmatt wrote:
if you have time to make it, can you make a class to do this?

About which class you are talking about ?

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Abhishek Sur2-Oct-09 12:29

2-Oct-09 12:29

I think he wants you to write one ActiveX / Plugin which will get motherboard serial no of the client. Big Grin | :-D

$Shucks | :-\$ $Shucks | :-\$

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Christian Graus2-Oct-09 11:13

Christian Graus

2-Oct-09 11:13

If you can't do your own work, you should advertise in the job section of the site and pay the person you expect to do it for you. This will also give you rights to expect the code to do exactly what you want, and to ask for changes if you need them.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Abhishek Sur2-Oct-09 12:42

2-Oct-09 12:42

I dont think its a good idea to use any external ActiveX / browser plugin. More you add this to your site, less the amount of users will visit your site.
Big Grin | :-D

Abhishek Sur
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returing value from javascript funtion to codebehind

_Madmatt2-Oct-09 22:11

_Madmatt

2-Oct-09 22:11

I don't think ActiveX is a big problem? But my idea has some other problems. Just like this one: of they buy on another pc the license will not be accepted...
Thanks a lot for your help! I'll search another method for web-based registering.

Madmatt.

Hemant Thaker2-Oct-09 7:29

Hemant Thaker

2-Oct-09 7:29

Hi..

///I m executing javascript function from codebehind (c#) as below

ClientScript.RegisterStartupScript(GetType(), "Check_Wrong_AnsString",
"Check_Wrong_AnsString('" + txtWrongAns1.Text.Trim() + "');", true);

////following is my javascript function.

function Check_Wrong_AnsString(args)
{
var AnsString = args;
if (AnsString.length < 1)
{
alert('Can not be blank');
return false;
}
}

//// i want to fetch javascript function's return value to codebehind.

thanks

By:
Hemant Thaker

Re: returing value from javascript funtion to codebehind

Abhijit Jana2-Oct-09 7:52

Re: returing value from javascript funtion to codebehind

2-Oct-09 7:52

From the function set value to some hidden variable, then access from codebehind !!

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Hemant Thaker2-Oct-09 8:14

Hemant Thaker

2-Oct-09 8:14

/////following way i m assigning to hidden field in javascript

function Check_Wrong_AnsString(args)
{
if (AnsString.length < 1)
{
alert('Can not be blank');
document.getElementById("ctl00_cnPlaHolaaa_Hidden_WrongAns").value = "false";
return;
}
}

////////aspx file
<asp:HiddenField id="Hidden_WrongAns" runat="server" value="true"/>

///////this is my codebehind file

ClientScript.RegisterStartupScript(GetType(), "Check_Wrong_AnsString", "Check_Wrong_AnsString('" + txtWrongAns1.Text.Trim() + "');", true);
string hh = Hidden_WrongAns.Value.ToString();
Response.Write(hh);

//////////but it writes "true" to browser (the default value we supplied at declaration of hidden field)
it should write "false" if function returns false.

please tell me if i have done wrong coding

thanks

By:
Hemant Thaker

Re: returing value from javascript funtion to codebehind

Abhijit Jana2-Oct-09 8:22

Re: returing value from javascript funtion to codebehind

2-Oct-09 8:22

Hemant Thaker wrote:
<asp:hiddenfield id="Hidden_WrongAns" runat="server" value="true">

This is your server side control. You need to first get "ClientID"

var HClientID="<%=Hidden_WrongAns.ClientID%>";
var hidID=document.getElementById(HClientID).value = "false";

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Hemant Thaker2-Oct-09 8:35

Hemant Thaker

2-Oct-09 8:35

gives me javascript error on tracing as below

jscript runtime error :document.getelementId(...) is null or not an object

???????????? whats that

thx

By:
Hemant Thaker

Re: returing value from javascript funtion to codebehind

Abhijit Jana2-Oct-09 8:54

Re: returing value from javascript funtion to codebehind

2-Oct-09 8:54

Hemant Thaker wrote:

jscript runtime error :document.getelementId(...) is null or not an object

???????????? whats that

I dont know, what you are doing with getelementId ???

Try this :
.cs file code ::

protected void Button1_Click(object sender, EventArgs e)
{
    ClientScript.RegisterStartupScript(GetType(), "Check_Wrong_AnsString", "SetServerValue()", true);
    Response.Write(HiddenField1.Value);
}

Javascript ::

<script language="javascript">
var HClientID="<%=HiddenField1.ClientID%>";

function SetServerValue(args)
{
var hidID=document.getElementById(HClientID).value = "false";
}

</script>

ASPX :

<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<asp:HiddenField ID="HiddenField1" runat="server" />

Try and run this. This working fine !!

Hope this will help you. Let me know if u have any more issue !!

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Abhishek Sur2-Oct-09 12:46

Popup form notifying other form?

2-Oct-09 12:46

wow.. nice answer my budd. Thumbs Up | :thumbsup:

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Quake2Player2-Oct-09 7:27

Quake2Player

2-Oct-09 7:27

Hi,

I have a form where there is a combobox, and next to it there is a link "Other" that opens a popup and lets the user to create more options (that dont appear in the combo)

How can I notify the parent form (the one with the combo) that the popup form added succesfuly the new option?

With winforms is really easy using events.. but in web its confusing

Help please!
Thx

Re: Popup form notifying other form?

Kannan Ar2-Oct-09 15:20

Kannan Ar

2-Oct-09 15:20

Do you want to pass value from child window to parent window? This article may help you. Link[^]

Multi page Add and Edit

IT_Help2-Oct-09 7:26

IT_Help

2-Oct-09 7:26

Hi All

I need to have a 4 page registration form.
Each page asks for a different set of details and the details need to be added in different table
for each page.
The last page of the process is a confirmation page that shows all the details entered in the first 3 pages.
Incase, if user wants to change anything he can go to the previous page and edit through the site map.

So what is the best way to acheive this kind of functionality?

Thanks in advance!!!

IT_Help

Abhishek Sur2-Oct-09 8:17

2-Oct-09 8:17

Practically speaking, If I would be in your place I would have create 4 different place which I would navigate one by one and store data into database.

I would also create a breadcrumb in the header which will point to every page I traversed and get the data properly from database upon visit.

Smile | :)

Abhishek Sur

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IT_Help2-Oct-09 9:55

IT_Help

2-Oct-09 9:55

Thanks for your reply.
I was thinkking of doing the same way and almost completed the coding to do this, but the problem is the entry in first table drives the entries in next tables, so if i have to edit anyting on first page then the next dont stand a meaning as i have to insert again .
i will explain you through an exapmle

My first insert in first table generates an identity feild which i was putting in session and then on second page i was making an insert based on the identity feild generated in first table
From DB perspective the tables had a foreign key contraint which didnt allow me to insert in second table till there is an entry in first table.

I read somewhere about storing the whole data in a session object and doing the insert after the user confirms on the last page.
What do you say about this approach?

IT_Help

Abhishek Sur2-Oct-09 12:24

2-Oct-09 12:24

IT_Help wrote:
I read somewhere about storing the whole data in a session object and doing the insert after the user confirms on the last page.

Well, I strongly oppose this. I think you should use your page a better way rather than relying on so much in session.

Regarding your problem, I think it is very common problem and we often face the same thing. I would suggest to send this within a hidden field. If you are using Request.Redirect to go to another page, you might use Querystring as well. Just inside the page store the value(id) that comes through querystring to your hidden field, and when this page is going to save, you will get the data from hidden field.

This is a good approach. Why should you store data on session if the information is not so much sensitive. You should only store data like user authentication level to session so that you could validate the session on every request. Nothing more should be stored in session. Big Grin | :-D

I hope you understand. If you still having problem, let me know. Smile | :)

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
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Blikkies2-Oct-09 8:55

Blikkies

2-Oct-09 8:55

Add an if statement in pageload event on every page that checks database if the entry for that user exist, if it exist then all field sould be preloaded with the data in the database and when the user hit submit, do a nother check and if the entry exist then the system should update database, if not then save the new entry.