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i cant use css validation class inside asp.net controls but all other css design works correctly for example i just need to add class="validate[required]" to make a control validation in html but the same is not working for asp.net textbox controls i tried CssClass too didnt work. please help, thanks in advance

<asp:TextBox ID="txt_uname" runat="server" Height="25" CssClass="validate[required]"></asp:TextBox>

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    please show your code. Commented Jun 6, 2013 at 8:40
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    validate[required] is not even a proper class name. Commented Jun 6, 2013 at 8:49

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validate[required]

This is not a valid css class name. This declaration means validate class will apply to those elements, which have required attribute.

Your css class 

.validate[required]
{
  color:Red;
}

So try this

<asp:TextBox ID="txtUsername" runat="server" CssClass="validate" required="required"></asp:TextBox>
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8 Comments

thanks a lot sachin, m noob in asp you just saved lots of hours of .net validations
what if css class is "validate[required,custom[email]]" ?
@miko1 I wonder where you did get requirements like that from.
@Mr Lister it's from a php project with jquery validation please help how can i make it work in asp 'required' one worked :)
If it's about jQuery, why did you tag your post with css? I'm not sure why you need to use those classes for styling inputs; use a different class for that. By the way, this is the same jQuery library that is mentioned in this question and this one, right?
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