[vivekkapoor99]

protected void txtInvoiceNo_TextChanged(object sender, EventArgs e)
{
txtRefNo.text = txtInvoiceNo.Text;

}

bt not able to show value in txtRefNo.text. Don't know why??

[eclipsed4utoo]

you seem to have a misunderstanding of how the web works. here are the basics...

a browser is nothing more than a tool to display HTML. a browser will send a request to a server, the server will send back an HTML response, and the browser displays that HTML code.

now, to do what you want, you will need to send a request to the server for the server to be able to run the code(do a postback). Since you are not, you will not see the text change.

you will need to use javascript or AJAX. doing a complete postback on a TextChanged event is not good. So you will need to use javascript or AJAX.

[vivekkapoor99]

Thanx for reply

Can u tell how to do this in javascript