newb: client script with asp.net

[sklett]

I need to add extensive validation and interaction client scripting to a web
form. I've done some initial searches for "asp.net and client scripting"
and I've found a couple articles that show methods like "register script
block" and what not. None of these methods will do what I need, I need to
add onChange, onClick, etc events to my controls.

For a simple example: How would I pop an alert when a user clicks on a
server textbox control?

Is this possible?

Thanks for any help,
Steve

[JeffP]

Steve,

Yes.

There are two aspects, one is Page validation and the other is validation of
the control.

I personally prefer to handle page validation with a "Can I Process?" sProc
so I can apply complex validation, that can change with scope creep and I
often don't have access to production WebServers, but do to databases, so I
can adapt my sProc business rules in the sProc's w/out having to rebuild the
project.

Anyway I've digressed....

Control events and validation are done with <asp:RequiredFi eldValidator... ..

Here's a textbox for entering the user's ID and on keyboard "Enter" posts,
this combined with the setFocus script makes logging in easy....

<asp:textbox id="tbId" onkeydown="if ((event.which &amp;&amp; event.which ==
13) || (event.keyCode &amp;&amp; event.keyCode == 13))
{document.Form1 .btnLogin.click ();return false;} else return true;"
runat="server" ToolTip="Enter Your Assigned ID" Width="126px"></asp:textbox>

or a more simple textbox....
<asp:textbox id="tbId" runat="server" ToolTip="Enter Your Assigned ID"
Width="126px"></asp:textbox>

<asp:requiredfi eldvalidator id="RequiredFie ldValidator1" runat="server"
ControlToValida te="tbId" Display="Dynami c"
ErrorMessage="Y ou must specify a ID.">*</asp:requiredfie ldvalidator>

Here is where the error msg displays, setting the validator to Dynamic
allows the error to hide this lable until re-evaluated.
<asp:Label id="lblInvalidL ogin" runat="server" ForeColor="Red"
Visible="False" >The ID entered was not valid.</asp:Label>

Regarding your registering a script, here's a call so that the cursor is in
the ID field in the pageLoad event

If Not Page.IsStartupS criptRegistered ("LoginFocusScr ipt") Then
Page.RegisterSt artupScript("Lo ginFocusScript" , Me.setLoginFocu sScript)

HTH

JeffP....

"sklett" <[e-mail] in message
news:O2******** ******@TK2MSFTN GP05.phx.gbl...

>I need to add extensive validation and interaction client scripting to a
web form. I've done some initial searches for "asp.net and client
scripting" and I've found a couple articles that show methods like
"register script block" and what not. None of these methods will do what
I need, I need to add onChange, onClick, etc events to my controls.

For a simple example: How would I pop an alert when a user clicks on a
server textbox control?

Is this possible?

Thanks for any help,
Steve

[sklett]

Jeff, thank you for the great response. I realize now that you can simply
add javascript to an asp server control directly in the HTML!

I was over complicating things :0)
"JeffP@Work " <jpgmt_at_sbcgl obal_dot_netwro te in message
news:eT******** ******@TK2MSFTN GP04.phx.gbl...

Steve,

Yes.

There are two aspects, one is Page validation and the other is validation
of the control.

I personally prefer to handle page validation with a "Can I Process?"
sProc so I can apply complex validation, that can change with scope creep
and I often don't have access to production WebServers, but do to
databases, so I can adapt my sProc business rules in the sProc's w/out
having to rebuild the project.

Anyway I've digressed....

Control events and validation are done with
<asp:RequiredFi eldValidator... ..

Here's a textbox for entering the user's ID and on keyboard "Enter" posts,
this combined with the setFocus script makes logging in easy....

<asp:textbox id="tbId" onkeydown="if ((event.which &amp;&amp; event.which
== 13) || (event.keyCode &amp;&amp; event.keyCode == 13))
{document.Form1 .btnLogin.click ();return false;} else return true;"
runat="server" ToolTip="Enter Your Assigned ID"
Width="126px"></asp:textbox>

or a more simple textbox....
<asp:textbox id="tbId" runat="server" ToolTip="Enter Your Assigned ID"
Width="126px"></asp:textbox>

<asp:requiredfi eldvalidator id="RequiredFie ldValidator1" runat="server"
ControlToValida te="tbId" Display="Dynami c"
ErrorMessage="Y ou must specify a ID.">*</asp:requiredfie ldvalidator>

Here is where the error msg displays, setting the validator to Dynamic
allows the error to hide this lable until re-evaluated.
<asp:Label id="lblInvalidL ogin" runat="server" ForeColor="Red"
Visible="False" >The ID entered was not valid.</asp:Label>

Regarding your registering a script, here's a call so that the cursor is
in the ID field in the pageLoad event

If Not Page.IsStartupS criptRegistered ("LoginFocusScr ipt") Then
Page.RegisterSt artupScript("Lo ginFocusScript" , Me.setLoginFocu sScript)

HTH

JeffP....

"sklett" <[e-mail] in message
news:O2******** ******@TK2MSFTN GP05.phx.gbl...

>>I need to add extensive validation and interaction client scripting to a
web form. I've done some initial searches for "asp.net and client
scripting" and I've found a couple articles that show methods like
"register script block" and what not. None of these methods will do what
I need, I need to add onChange, onClick, etc events to my controls.

For a simple example: How would I pop an alert when a user clicks on a
server textbox control?

Is this possible?

Thanks for any help,
Steve

[JeffP]

NP

Also, the * asterisk is used as a tiny unassuming placeholder for the
lable....

JeffP....

"sklett" <[e-mail] in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

Jeff, thank you for the great response. I realize now that you can simply
add javascript to an asp server control directly in the HTML!

I was over complicating things :0)
"JeffP@Work " <jpgmt_at_sbcgl obal_dot_netwro te in message
news:eT******** ******@TK2MSFTN GP04.phx.gbl...

>Steve,

Yes.

There are two aspects, one is Page validation and the other is validation
of the control.

I personally prefer to handle page validation with a "Can I Process?"
sProc so I can apply complex validation, that can change with scope creep
and I often don't have access to production WebServers, but do to
databases, so I can adapt my sProc business rules in the sProc's w/out
having to rebuild the project.

Anyway I've digressed....

Control events and validation are done with
<asp:RequiredF ieldValidator.. ...

Here's a textbox for entering the user's ID and on keyboard "Enter"
posts, this combined with the setFocus script makes logging in easy....

<asp:textbox id="tbId" onkeydown="if ((event.which &amp;&amp; event.which
== 13) || (event.keyCode &amp;&amp; event.keyCode == 13))
{document.Form 1.btnLogin.clic k();return false;} else return true;"
runat="serve r" ToolTip="Enter Your Assigned ID"
Width="126px"> </asp:textbox>

or a more simple textbox....
<asp:textbox id="tbId" runat="server" ToolTip="Enter Your Assigned ID"
Width="126px"> </asp:textbox>

<asp:requiredf ieldvalidator id="RequiredFie ldValidator1" runat="server"
ControlToValid ate="tbId" Display="Dynami c"
ErrorMessage="Y ou must specify a
ID.">*</asp:requiredfie ldvalidator>

Here is where the error msg displays, setting the validator to Dynamic
allows the error to hide this lable until re-evaluated.
<asp:Label id="lblInvalidL ogin" runat="server" ForeColor="Red"
Visible="False ">The ID entered was not valid.</asp:Label>

Regarding your registering a script, here's a call so that the cursor is
in the ID field in the pageLoad event

If Not Page.IsStartupS criptRegistered ("LoginFocusScr ipt") Then
Page.RegisterS tartupScript("L oginFocusScript ", Me.setLoginFocu sScript)

HTH

JeffP....

"sklett" <[e-mail] in message
news:O2******* *******@TK2MSFT NGP05.phx.gbl.. .

>>>I need to add extensive validation and interaction client scripting to a
web form. I've done some initial searches for "asp.net and client
scripting" and I've found a couple articles that show methods like
"register script block" and what not. None of these methods will do
what I need, I need to add onChange, onClick, etc events to my controls.

For a simple example: How would I pop an alert when a user clicks on a
server textbox control?

Is this possible?

Thanks for any help,
Steve