RadMaskedTextBox Change The Focus Automatically

2 posts, 0 answers
  1. Felipe
    Felipe avatar
    3 posts
    Member since:
    Jul 2011

    Posted 29 Jul 2011 Link to this post

    I have 3 controls 'RadMaskedTextBox': DDI, DDD and TEL
    When the user type the DDI, the control must change the focus automatically to the next control (DDD), and so on.

    Below is my code

    function Next(field, max, next) {
        if (document.getElementById(field).value.length >= max) {

    <telerik:RadMaskedTextBox ID="txtDdiTel" runat="server" Mask="###"
             PromptChar="_" ResetCaretOnFocus="True" Width="35px" >
    <asp:Label ID="lblDdiTel" runat="server" Text="-"></asp:Label>
    <telerik:RadMaskedTextBox ID="txtDddTel" runat="server" Mask="###"
             PromptChar="_" ResetCaretOnFocus="True" Width="35px" >
    <asp:Label ID="lblDddTel" runat="server" Text="-"></asp:Label>
    <telerik:RadMaskedTextBox ID="txtTel" runat="server" Mask="####-####"
             PromptChar="_" ResetCaretOnFocus="True" Width="80px" >

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
            If Not IsPostBack Then
                txtDdiTel.Attributes.Add("onKeyPress", "Next('" & txtDdiTel.ClientID & "', '3', '" & txtDddTel.ClientID & "')")
                txtDddTel.Attributes.Add("onKeyPress", "Next('" & txtDddTel.ClientID & "', '3', '" & txtTel.ClientID & "')")
            End If
    End Sub

    But when I type 3 numbers, occurs the following error:
    htmlfile: Can not move focus to the control because it is invisible, not enabled or of a type that does not accept focus.

    Can Someone help me?

    Felipe Almeida
  2. Pavel
    Pavel avatar
    904 posts

    Posted 03 Aug 2011 Link to this post

    Hello Felipe,

    Try changing your script as follows:
    function Next(field, max, next)
        if (document.getElementById(field).value.length >= max)

    the Telerik team

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