Required field validation based on Drop-down value

[boatdrinks]

I have a drop-down box and a textbox. I would like to set the validator of the textbox to require a value only if a specific value is selected in the drop-down. So far this is what I have done, and it does not work. I would like to do this in VB also.

This is in the page_Load


If inserthardware.selectedvalue = "Classroom" then
barcodevalidator.ControlToValidate="insertbarcode"
end if


This is the drop-down in the body of the page

<aspropDownList id="inserthardware" width="175" runat="server">
<asp:ListItem value="somethingelse" text="somethingelse"/>
<asp:ListItem value="Classroom" text="Classroom"/>

This is the text box in the body of the page

<asp:Textbox id="Insertbarcode" width="175" runat="server" />

<asp:RequiredFieldValidator id="barcodevalidator" Text="*" ErrorMessage="Barcode" runat="server" />


Please Help

 

[Veep]

I think that you want this code:

If inserthardware.SelectedItem.Value = "Classroom" then
barcodevalidator.ControlToValidate="insertbarcode"
end if

In the OnClick event of a button...Not in the Page_Load().