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New Message on MumbaiUserGroup
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From: Varad_RS
Message 19 in Discussion
#) Default Button for a TextBox (Data entry screen) in
ASP.NET
Sometimes I get annoyed when hitting the
enter key in a TextBox (say login screen) resulting
in undesired effects like the wrong Button being �clicked�. After so many
code tricks, I found the below method that allows you to specify a
default Button to submit when the user hits the enter key in a
TextBox.
When you press a key on your
keyboard, the js OnKeyPress event is fired. This calls a function to
which we pass the id of the button associated with the TextBox. The function
gets a reference to the button and simuilates a mouse-click on the Button. We
perform a browser detection because IE and Netscape have different event
models. The function finally returns false so that the keypress event is
cancelled (otherwise a second form submit will be raised). I tried this
code with newer versions of IE 6.0/Netscape 7 it worked great!.
//client side js
function clickButton(e,
buttonid){
var bt =
document.getElementById(buttonid);
if (typeof bt ==
'object'){
if(navigator.appName.indexOf("Netscape")>(-1)){
if (e.keyCode ==
13){
bt.click();
return
false;
}
}
if (navigator.appName.indexOf("Microsoft
Internet Explorer")>(-1)){
if (event.keyCode
== 13){
bt.click();
return
false;
}
}
}
}
//code behind
TextBox1.Attributes.Add("onkeypress",
"return clickButton(event,'" + Button1.ClientID + "')");
The code behind
generates the following code:
<input name="TextBox1"
type="text" id="TextBox1" onkeypress="return
clickButton(event,'Button1')" />
This causes web control
Button1 to be clicked when the enter key is hit inside
TextBox1.
Hope this helps many!
Regards,
Varad
Microsoft Solutions Group
Satyam Computer Services
LTD.,
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