i use RequiredFieldValidator to validate radtextbox,SetFocusOnError="true"
telerik version:2012Q3

first ，enter " "，validate event fire, display “notnull”
sencond，enter “123” ,radtextbox not set value，validate event not fire

asp.net textbox is ok

code：
<telerik:RadTextBox ID="txtAppId" runat="server" Width="300" AutoPostBack="false">
        </telerik:RadTextBox>
        <%--<asp:TextBox ID="txtAppId" runat="server" Width="300" AutoPostBack="false">
        </asp:TextBox>--%>
        <asp:RequiredFieldValidator ID="TextBoxRequiredFieldValidator" runat="server" Display="Dynamic"
            ControlToValidate="txtAppId" Text="NOT NULL" ErrorMessage="NOT NULL" SetFocusOnError="true">                          
        </asp:RequiredFieldValidator>

To let the applicable keyboard configuration on iOS popup, the HTML5 type attribute on the different inputs should vary. So RadDateInput should have type=date and RadNumericTextBox should have type=number

Hi,

the RadNumericTextBox currently supplies the types number, currency and percent.

http://docs.telerik.com/devtools/aspnet-ajax/controls/input/radnumerictextbox/overview

In addition to that we need the type permill (0/00).
We would appreciate it, if you implement this additional type.

When using the RadMaskedTextBox control with the following setup, copy and paste in IE browsers (tested on IE11) does not work (nothing happens).

 <table width="100%" cellpadding="5px" cellspacing="5px" border="0px">
                                <tr>
                                    <td width="50%" align="right" valign="top">
                                        <asp:Label ID="lbllicenseStateID" runat="server" EnableViewState="False" Text="driver&#8217;s license or<br> state identification number: <br>(two letters and six numbers)" meta:resourcekey="lbllicenseStateIDResource1" AssociatedControlID="licenseStateID"></asp:Label>
                                    </td>
                                    <td width="50%" valign="middle">
                                        <telerik:RadMaskedTextBox PromptChar="" SelectionOnFocus="SelectAll" ID="licenseStateID" runat="server" MaxLength="8" TabIndex="1" CssClass="uppercase" Mask="LL######" DisplayMask="********" meta:resourcekey="licenseStateIDResource2" HideOnBlur="True" AutoCompleteType="Disabled" EnableAriaSupport="True"></telerik:RadMaskedTextBox>
                                        <asp:RequiredFieldValidator ID="rfvlicenseStateID" runat="server" ControlToValidate="licenseStateID" ForeColor="Red"
                                            Text="*" ErrorMessage="driver&#8217;s license or state identification number is required." meta:resourcekey="rfvlicenseStateIDResource1" SetFocusOnError="True"></asp:RequiredFieldValidator>
                                        <asp:RegularExpressionValidator ID="revCardNumber" runat="server" ControlToValidate="licenseStateID" ForeColor="Red"
                                            ValidationExpression="[a-zA-Z]{2}[0-9]{6}" ErrorMessage="driver&#8217;s license or state identification number format is incorrect." meta:resourcekey="revCardNumberResource1" Text="Format is incorrect." SetFocusOnError="True"></asp:RegularExpressionValidator>
                                        <asp:HiddenField ID="hdnlicenseStateID" runat="server" />


                                    </td>
                                </tr>
</table>