asp.net under the onclientclick of the magical magic! _ Practical Tips

Do Web pages often with JavaScript, often use JavaScript to do some client authentication, but if our button with HTML control, the validation passed after the code can not call the background, if the server-side control, validation does not have to refresh the page, This is sometimes annoying, can not let the server Segment button to invoke the client's authentication, if the validation succeeds in the call to the server side of the method, so that both reduce the network transmission, to the user feel good.
When we use the template column to delete data generally return a dialog box to ask the user whether to confirm, in fact, we are by modifying the template column of the button's OnClientClick property to set its value back confirm ("You confirm the deletion of this record?"); We can analyze, confirm return is a bool value, if my button returned the result is also a bool should also be OK, I guessed right, such as the following code
function Judgeuserinput ()
{
bool result = true;
if (validation failed)
{
result = false;
Alert ("Please check that your input is correct");
}
return result;
}
So let's set the button OnClientClick to return Judgeuserinput ();
function Validion (REGEX,ELEMENTNAME,ALERTSTR)
{
var htmlobj = document.getElementById (elementname);
if (htmlobj.value!= "")
{
if (Regex.test (Htmlobj.value))
{
return true;
}
Else{alert (ALERTSTR);
return false;
}
}
if (htmlobj.value== "")
{
return true;
}


}
And then call the