Hi
I'm building a custom control which basically takes data from the user
and then submits it. I would use the validator controls but if I
understand correctly (I've been working with .Net for 2 weeks) you
cant 'embed' them in the custom controls. Someone correct me if I'm
wrong (and please point to an example :) )
So, to get around this, I'm using Javascript. In my control, I'm doing
Writer.WriteAtt ribute("OnClick ", "javascript:che ckData();" &
Page.GetPostBac kEventReference (Me, "Data"))
for an Input item so I get something like
<input type="button" value="Submit"
OnClick="javasc ript:checkData( );__doPostBack( 'MyControl','Da ta')" />
The checkData() function does this:
function checkLogin()
{
if (document.Data. item1.value == "" )
{
alert("Please enter item 1.");
return false;
}
if (document.Data. item2.value == "" )
{
alert("Please enter item 2.");
return false;
}
if (document.Data. item1.value != "" && document.Data.i tem2.value !=
"" )
{
return true;
}
}
My query is, how do I get the click event to fire correctly so that i
get alerts when there is a problem, and it passes through and submits
the form if there isnt a problem?
Thanks
Sam 4 1735
Hi,
Your client side script should use cancelBubble and returnValue to
disable event default process and raise alert if error found.
function CallServer()
{
if validate
{
__doPostBack('M yControl','Data ');
}
else
{
alert("Error");
window.event.ca ncelBubble = true;
window.event.re turnValue = false;
}
}
HTH
Natty Gur[MVP]
blog : http://weblogs.asp.net/ngur
Mobile: +972-(0)58-888377
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!
Natty Gur <na***@dao2com. com> wrote in message news:<uS******* *******@TK2MSFT NGP11.phx.gbl>. .. Hi,
Your client side script should use cancelBubble and returnValue to disable event default process and raise alert if error found.
function CallServer() { if validate { __doPostBack('M yControl','Data '); } else { alert("Error"); window.event.ca ncelBubble = true; window.event.re turnValue = false; } }
HTH
Natty Gur[MVP]
blog : http://weblogs.asp.net/ngur Mobile: +972-(0)58-888377
*** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!
Thanks Natty
This means I have to create inline javascripts which I'd rather not do
if I can help it. Just as luck would have it, after spending an 'hour
or two' trying to find a solution before posting, 5 mins after posting
I find a solution :( Always the way...
Anyhow, just for reference purposes, what I've done is to validate on
OnMouseDown and postback on OnClick. Works a treat
Hi Samuel,
Its unfortunate that you had to rework validation because of some incorrect
information about validators. The ASP.NET validators work fine within custom
controls. They have one key limitation related to their "location": the
ControlToValida te must be associated with the ID of a control in the same
"naming container". If your custom control impliments INamingContaine r,
ControlToValida te can only point to other controls within your custom
control. If not, it can refer to other controls in the same naming container
that your custom control appears. Some types of naming containers: Page,
UserControl, and rows in DataGrid and DataList.
If you wanted to support validation without naming container limits, I wrote
a replacement to Microsoft's validators that overcomes that limitation among
numerous others: Professional Validation And More. http://www.peterblum.com/vam/home.aspx.
--- Peter Blum www.PeterBlum.com
Email: PL****@PeterBlu m.com
Creator of "Profession al Validation And More" at http://www.peterblum.com/vam/home.aspx
"Samuel Hon" <no*****@samuel hon.co.uk> wrote in message
news:c8******** *************** **@posting.goog le.com... Hi
I'm building a custom control which basically takes data from the user and then submits it. I would use the validator controls but if I understand correctly (I've been working with .Net for 2 weeks) you cant 'embed' them in the custom controls. Someone correct me if I'm wrong (and please point to an example :) )
So, to get around this, I'm using Javascript. In my control, I'm doing
Writer.WriteAtt ribute("OnClick ", "javascript:che ckData();" & Page.GetPostBac kEventReference (Me, "Data"))
for an Input item so I get something like
<input type="button" value="Submit" OnClick="javasc ript:checkData( );__doPostBack( 'MyControl','Da ta')" />
The checkData() function does this:
function checkLogin() { if (document.Data. item1.value == "" ) { alert("Please enter item 1."); return false; }
if (document.Data. item2.value == "" ) { alert("Please enter item 2."); return false; }
if (document.Data. item1.value != "" && document.Data.i tem2.value != "" ) { return true; }
}
My query is, how do I get the click event to fire correctly so that i get alerts when there is a problem, and it passes through and submits the form if there isnt a problem?
Thanks
Sam
"Peter Blum" <PL****@Blum.in fo> wrote in message news:<OC******* ******@TK2MSFTN GP10.phx.gbl>.. . Hi Samuel,
Its unfortunate that you had to rework validation because of some incorrect information about validators. The ASP.NET validators work fine within custom controls. They have one key limitation related to their "location": the ControlToValida te must be associated with the ID of a control in the same "naming container". If your custom control impliments INamingContaine r, ControlToValida te can only point to other controls within your custom control. If not, it can refer to other controls in the same naming container that your custom control appears. Some types of naming containers: Page, UserControl, and rows in DataGrid and DataList.
If you wanted to support validation without naming container limits, I wrote a replacement to Microsoft's validators that overcomes that limitation among numerous others: Professional Validation And More. http://www.peterblum.com/vam/home.aspx.
--- Peter Blum www.PeterBlum.com Email: PL****@PeterBlu m.com Creator of "Profession al Validation And More" at http://www.peterblum.com/vam/home.aspx
<snip>
Thanks Peter for clearing that up, I will re-investigate
Sam This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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