changing the focus from an ASP.NET control to another

[vivela]

hi,
I hope you could help me out on this one,cause I have been trying for 4
days to solve it,but couldn't quite get it right: I have an ASP textbox
that should change the value in a dropdownlist. this happens,but the
problem is with the validation of the ddl.it has a
requiredfieldvalidator,and the error message disapears only if i select
a value from the dropdownlist,even though it should also disapear when
I write a valid name in the textbox and the item changes in the ddl.
even though I put some javascript to set the focus on the ddl,after i
write something in the textbox,this doesn't happen,and i think that's
why the validator acts like it does..
hope you could give me a piece of advise...
10x!

 

[Tim_Mac]

hi vivela.
it's possible that the validation message won't disappear until the focus
has gone off the dropdownlist. when you make a valid selection on a DDL by
interacting with the control via mouse/keyboard then the message should
disappear, i just wonder if the way you focus the control in javascript
doesn't trigger the validator correctly. for example, in a textbox, the
validation message won't disappear until you focus on a control outside that
textbox, perhaps the same is happening with your DDL when focused via
javascript.

can you post your code and i'll check it out?
thanks
tim

 

[vivela]

Hi Tim,

Here's the asp textbox,ddl and validator:

<asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server"
Font-Bold="True" Font-Size="Small" ErrorMessage="!"
ControlToValidate="ddlBranch"></asp:requiredfieldvalidator>
<asp:textbox id="txtBranchCode" onkeyup="FillBrench(this,
document.getElementById('ddlBranch'));" runat="server" Width="33px"
CssClass="field_fundal_bleu"></asp:textbox>
<asp:dropdownlist id="ddlBranch" runat="server" Width="160px"
CssClass="combo"
onchange="SincronizeAccelerator(this,document.getElementById('txtBranchCode'));"
OnBlur="getFocus(this);"></asp:dropdownlist>

And here is the javascript(the original version,I tried some other
things but they didn't work either):

function getFocus(obj)
{
obj.focus();
}

function FillBrench(obj,objSelect)
{

if(obj.value.length >0)
for (var i=0;i<objSelect.options.length;i++)
if(objSelect.options.value == obj.value)
objSelect.selectedIndex = i;



}
function SincronizeAccelerator(obj,accelerator)
{
//if(accelerator.length > 0)
accelerator.value = obj.value;
//obj.focus();
}

hope you coluld figure it out...
thank you!



Tim_Mac a scris:

 

[Tim_Mac]

hi Vivela,
you are right, it doesn't work as expected. i think the reason is because
when you change the selectedindex of a SELECT element via javascript, it
doesn't seem to fire the onchange event so the validators don't update
themselves.

i wrote a work around to manually trigger the client side validation. this
is for .net 2.0:
function FillBrench(obj,objSelect)
{
if(obj.value.length >0)
{
for (var i=0;i<objSelect.options.length;i++)
{
if(objSelect.options.value == obj.value)
{
objSelect.selectedIndex = i;

// re-validate all the validators
for(var j=0;j<Page_Validators.length;j++)
ValidatorValidate(Page_Validators[j]);

return;
}
}
}
}

hope this does it for you!

tim

Hi Tim,

Here's the asp textbox,ddl and validator:

<asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server"
Font-Bold="True" Font-Size="Small" ErrorMessage="!"
ControlToValidate="ddlBranch"></asp:requiredfieldvalidator>
<asp:textbox id="txtBranchCode" onkeyup="FillBrench(this,
document.getElementById('ddlBranch'));" runat="server" Width="33px"
CssClass="field_fundal_bleu"></asp:textbox>
<asp:dropdownlist id="ddlBranch" runat="server" Width="160px"
CssClass="combo"
onchange="SincronizeAccelerator(this,document.getElementById('txtBranchCode'));"
OnBlur="getFocus(this);"></asp:dropdownlist>

And here is the javascript(the original version,I tried some other
things but they didn't work either):

function getFocus(obj)
{
obj.focus();
}

function FillBrench(obj,objSelect)
{

if(obj.value.length >0)
for (var i=0;i<objSelect.options.length;i++)
if(objSelect.options.value == obj.value)
objSelect.selectedIndex = i;



}
function SincronizeAccelerator(obj,accelerator)
{
//if(accelerator.length > 0)
accelerator.value = obj.value;
//obj.focus();
}

hope you coluld figure it out...
thank you!



Tim_Mac a scris:

hi vivela.
it's possible that the validation message won't disappear until the focus
has gone off the dropdownlist. when you make a valid selection on a DDL
by
interacting with the control via mouse/keyboard then the message should
disappear, i just wonder if the way you focus the control in javascript
doesn't trigger the validator correctly. for example, in a textbox, the
validation message won't disappear until you focus on a control outside
that
textbox, perhaps the same is happening with your DDL when focused via
javascript.

can you post your code and i'll check it out?
thanks
tim