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You can use document.getElementById["id"] to get the DOM element for the control. The problem is you need to know the client ID of the controls which in all but the simplest cases will not be the same as you set server-side. There are various methods for doing this and a couple of articles on CodeProject. The easiest way is to push all controls client IDs as Javascript variables at render time (by traversing the tree and outputting a load of 'var MyControlId = "clientid";'
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Refer me a good article
plz
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You can not manipulate asp.net controls with Javascript, as the controls doesn't exist in the browser at all.
The only thing that exists is the html elements that the controls render. Those can be manipulated as any html elements.
Use the ClientID property of a control to find out the id that the rendered html element will get.
---
single minded; short sighted; long gone;
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It looks pretty easy. use controls attribute.add method to add javascript evnets to asp.net controls.
suppose dropdown list name is drp then write the following in page load
<br />
drp.Attributes.add("onchange","YourJSFunction();");<br />
write control visibility change in YourJSFunction();. It could be some thing like this
function YourJSFunction()
{
document.getElementById("TxtId").style.display = "none";
}
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Man its not working 
Bye
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what problem u r facing ?
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Server controls are not being shown. I have made it simple.
On clik of a button whether i have to make the visible property of a server site textbox to true.
Is it possible.
Bye
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The viewState should be enabled for this to work
Sincerely,
Elina
Life is great!!!
Enjoy every moment of it! 
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When adding new user in asp.net 2 (without using the wizard)
on using two textboxes (one for password and the other to confirm the password)
I get this message box saying -
Confirm user password:
Please select which user you are changing the password for.
I DO NOT WANT this message to appear.
Please help
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Well, I think this problem is browser specific.
As I had saved the password for my borweser to automatically log me on.
Since, I have removed it... Unable to re generate the error.
Thank you
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How to create a page with information from the database during runtime.
I want the code in asp.net using C#. Please tell where the code has to be written.
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Do you have Visual Studio? What version of .NET are you using? Have you even tried to figure it out for yourself? What specific problem are you having? Do you know the meaning of the word 'initiative'?
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you are expecting too much through forums...atleast do something that starts the process, then post that here. then we can help
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Start with learning ADO.Net...
So you can read the information by DataSet or DataReader and print in labels on the web page...
1. Prepare the database
2. Open a connection
3. Execute a SqlCommand (or OleDbCommand if you don't use Sql Server)
4. Get the datareader
5. So print the information that you got.
Or use the DataSet and DataBindings.
Bye, 
Carmine,
Webmaster of: www.thetotalsite.it
My web blog: blog.thetotalsite.it
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I forgot, if you intended instead really to create a web page, you only have to use the FileStreams and FTP classes to upload the webpage (or, if the permission of the web-site allows that, you can create directly the page on the web space).
Bye,
Carmine,
Webmaster of: www.thetotalsite.it
My web blog: blog.thetotalsite.it
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How can i get values in between some tags. I have one pre tag and i want to get the value contained in the pre tag.
Eg :
I want this code<br>next line
any idea? can i use regular expressions ? how can i form a regular expression for this..
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Use the "Ignore HTML" option when you post markup code, or use the < > buttons to insert the html code for those characters.
---
single minded; short sighted; long gone;
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i m not telling about code project. i want to this in an asp.net application ?
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Yes, I know, but if you don't make sure that your post shows what it is that you want to do, how do you expect anyone to be able to help you?
---
single minded; short sighted; long gone;
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Good morning everyone.
I'm developing an application that listens to incoming TCP/IP socket connections from client applications. the client connects to my server and sends an array of bytes. My application receives it, does some calculation on the bytes and resends the modified byte array back to the client. I was pretty new to socket connections, so i thoroughly read the article "Asynchronous socket communication" here on Code Project. I managed to put up this application and it seems to work (i did not have to develop the client, that is made by another programmer).
My problem is that i was recently asked to make this service accessible also on the Internet through a website. I should put up a simple page with a textbox and a button: the user writes a HEX string in the textbox, pushes the button and he's prompted with the result.
As a complete newbie to ASP, i first tried the desperate attempt to do the old "cut&paste": after a small adjustment, the very same code i used for a c# test application (that i used to connect to my server app) compiled under ASP. As i load the page, i can see my server application recognizes and accepts the connection; sometimes i even manage to send the byte array; but nothing is received back. I know it was too much to expect this rough approach to work flawlessly: so i think it's better to write it from scratch. Though, after some unproductive googling, my poor (read: none) knowledge of ASP led me to ask for help here. I know it may be laughably simple for you experts, but i really just need to do this:
- send a byte array to a specified IP address on a specified port;
- keep listening for a similar byte array
- display the received code under the form of a HEX string.
Please note that due to the heavy calculations needed, the server can take up to two-three minutes before sending the answer.
If anyone can help me, or at least can point me out some articles which can enlighten me, i would be very grateful. Thanks in advance, all of you.
~~~ From Milano to The Hague, easy as it goes ~~~
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Hi,
I'm having a RadioButtonList that has two RadioButtons. One has "Good Mood " and the other one "Bad Mood". But I want whe one is selected it may come with a particular smilie. How could I go about this?
Thanks
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Hi,
Add two images in your web application.
Add an html Img tag in your .aspx.
<img runat="server" id="ImageSmile" />
Make it invisible using javascript function as given below:
document.getElementById('ImageSmile').style.visibility = "hidden";
Add the foll. line in the code-behind file as
RadioButtonList1.Attributes.Add("OnClick", "return ChangeSmile();");
and add a javascript function:
function ChangeSmile()
{
if (document.getElementById('RadioButtonList1_0').checked == true)
{
document.getElementById('ImageSmile').style.visibility = "visible";
document.getElementById('ImageSmile').src = "images/smiley_smile.gif";
}
else
{
document.getElementById('ImageSmile').style.visibility = "visible";
document.getElementById('ImageSmile').src = "images/smiley_frown.gif";
}
}
P.S.: Change the path of your images.
Rate this message. Thank you. Harini
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Hi Harini,
Thanks, I want to ask you if I'm using C# it will change or not?
Thanks
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Hi
I tried in ASP.Net with C#.Net
Is that OK??
Rate this message. Thank you. Harini
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Thanks Harini,
I've tried But it's not working out. I get so many errors like. I'm putting the errors in Brackets:
rblmood.Attributes.Add()("OnClick", "return ChangeSmile();");
function ChangeSmile()
{
if (document.getElementById("rblmood").checked(Identifier expected, 'checked' is a keyword)({expected)=false(;expected))(;expected);
{
document.getElementById('ImageSmile'(Too many characters in character literal (This appear to all the 'ImageSmile sentences'))).style.visibility = "visible";
document.getElementById('ImageSmile').src = "Is_Dash_Board/laudhing-smiley-010.gif";
}
else(;expected)
{
document.getElementById('ImageSmile').style.visibility = "visible";
document.getElementById('ImageSmile').src = "Is_DashBoard/sad-smiley-017.gif";
}
}(}expected)
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