Dynamic RequiredFieldValidator

[acent]

Greetings y'all,

I'm looking to dynamically turn on/off a couple requiredfieldvalidator controls - the easiest way possible.
I have a dropdownlist and some textbox controls:

<li><label for="ddlRepeats">Repeating</label>
  <asp:DropDownList ID="ddlRepeats" runat="server">
    <asp:ListItem Value="1" Selected="True">Does Not Repeat</asp:ListItem>
    <asp:ListItem Value="2" Selected="False">Same Day of the Month</asp:ListItem>
    <asp:ListItem Value="3" Selected="False">Every ___ Days</asp:ListItem>
  </asp:DropdownList>
</li>
<li id="repeatfield1" style="display:none;"><label for="txtRepeatDay" id="lblRepeatDay">Day to Repeat On</label><asp:TextBox ID="txtRepeatDay" MaxLength="2" Size="5" runat="server" /></li>
<li id="repeatfield2" style="display:none;"><label for="txtRepeatNo">No. of Repeats</label><asp:TextBox ID="txtRepeatNo" MaxLength="3" Size="5" runat="server" /></li>

And the DDL fires fires some javascript to show/hide textbox fields:

<script language="javascript">
  function toggle_repeat_fields(fld) {
    if(fld.value == 1) {
      document.getElementById('repeatfield1').style.display = 'none';
      document.getElementById('repeatfield2').style.display = 'none';
    } else {
      document.getElementById('repeatfield1').style.display = 'block';
      document.getElementById('repeatfield2').style.display = 'block';
    }
    if(fld.value == 2) {
      document.getElementById('lblRepeatDay').innerHTML = "Day to Repeat On";
    } else {
      document.getElementById('lblRepeatDay').innerHTML = "Day Interval";
    }
  }
</script>

Not exactly radical new therapy in web design. What I want is to add a requiredfieldvalidator to the two textboxes if they're visible.

Thought about a custom field validator, but that might be overcomplicating the obvious.

Any help is appreciated. I am using ASP/VB 2.0

"If it's stupid but works, it isn't stupid."
-Murphy's Military Laws

 

[jmeckley]

I haven't used validation webcontrols for a while, but i thought the validator was "disabled" if the visibility property is set to false. if this is correct

bool display = ShouldDisplayTextBox();
MyTextBox.Visible = display;
MyTextBoxRequiredFieldValidator.Visible = display;

Jason Meckley
Programmer
Specialty Bakers, Inc.