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Wizard.OnNextButtonClick(WizardNavigationEventArgs) Metodo

Definizione

Genera l'evento NextButtonClick.

protected:
 virtual void OnNextButtonClick(System::Web::UI::WebControls::WizardNavigationEventArgs ^ e);
protected virtual void OnNextButtonClick (System.Web.UI.WebControls.WizardNavigationEventArgs e);
abstract member OnNextButtonClick : System.Web.UI.WebControls.WizardNavigationEventArgs -> unit
override this.OnNextButtonClick : System.Web.UI.WebControls.WizardNavigationEventArgs -> unit
Protected Overridable Sub OnNextButtonClick (e As WizardNavigationEventArgs)

Parametri

e
WizardNavigationEventArgs

Oggetto WizardNavigationEventArgs che contiene i dati dell'evento.

Esempio

Nell'esempio di codice seguente viene illustrato come specificare un gestore eventi per l'evento NextButtonClick . Ogni volta che viene fatto clic sul pulsante Avanti , la BorderWidth proprietà per il Wizard controllo viene aumentata di 1 pixel, misurata dalla Unit classe.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  void OnNextButtonClick(object sender, WizardNavigationEventArgs e)
  {
    // When the Next button is clicked, increase the 
    // Wizard1.BorderWidth by 1.
    Wizard1.BorderWidth = Unit.Pixel((int)(Wizard1.BorderWidth.Value + 1));
  }

  void OnPreviousButtonClick(object sender, WizardNavigationEventArgs e)
  {
    // When the Previous button is clicked, decrease the 
    // Wizard1.BorderWidth by 1.
    Wizard1.BorderWidth = Unit.Pixel((int)(Wizard1.BorderWidth.Value - 1));
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
      <asp:Wizard id="Wizard1" 
        runat="server" 
        onnextbuttonclick="OnNextButtonClick" 
        onpreviousbuttonclick="OnPreviousButtonClick"
        borderstyle="Solid"
        bordercolor="#3300ff"
        borderwidth="1">
        <WizardSteps>
          <asp:WizardStep id="WizardStep1" 
            runat="server" 
            title="Step 1">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep2" 
            runat="server" 
            title="Step 2">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep3" 
            runat="server" 
            title="Step 3">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep4" 
            runat="server" 
            title="Step 4">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep5" 
            runat="server" 
            title="Step 5">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep6" 
            runat="server" 
            title="Step 6">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep7" 
            runat="server" 
            title="Step 7">
          </asp:WizardStep>
        </WizardSteps>
        <HeaderTemplate>
          <b>NextButtonClick and PreviousButtonClick Example</b>
        </HeaderTemplate>
      </asp:Wizard>
    </form>
  </body>
</html>
<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Sub OnNextButtonClick(ByVal sender As Object, ByVal e As WizardNavigationEventArgs)
    ' When the Next button is clicked, increase the 
    ' Wizard1.BorderWidth by 1.
    Wizard1.BorderWidth = Unit.Pixel(CInt(Wizard1.BorderWidth.Value + 1))
  End Sub
  
  Sub OnPreviousButtonClick(ByVal sender As Object, ByVal e As WizardNavigationEventArgs)
    ' When the Previous button is clicked, decrease the 
    ' Wizard1.BorderWidth by 1.
    Wizard1.BorderWidth = Unit.Pixel(CInt(Wizard1.BorderWidth.Value - 1))
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
      <asp:Wizard id="Wizard1" 
        runat="server" 
        onnextbuttonclick="OnNextButtonClick" 
        onpreviousbuttonclick="OnPreviousButtonClick"
        borderstyle="Solid" 
        bordercolor="#3300ff"
        borderwidth="1">
        <WizardSteps>
          <asp:WizardStep id="WizardStep1" 
            runat="server" 
            title="Step 1">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep2" 
            runat="server" 
            title="Step 2">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep3" 
            runat="server" 
            title="Step 3">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep4" 
            runat="server" 
            title="Step 4">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep5" 
            runat="server" 
            title="Step 5">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep6" 
            runat="server" 
            title="Step 6">
          </asp:WizardStep>
          <asp:WizardStep id="WizardStep7" 
            runat="server" 
            title="Step 7">
          </asp:WizardStep>
        </WizardSteps>
        <HeaderTemplate>
          <b>NextButtonClick and PreviousButtonClick Example</b>
        </HeaderTemplate>
      </asp:Wizard>
    </form>
  </body>
</html>

Commenti

L'evento NextButtonClick viene generato quando viene fatto clic sul pulsante Avanti .

Quando viene generato un evento, il gestore dell'evento viene richiamato tramite un delegato. Per altre informazioni, vedere la gestione e generazione di eventi.

Il metodo OnNextButtonClick consente inoltre alle classi derivate di gestire l'evento senza associare un delegato. È la tecnica consigliata per la gestione dell'evento in una classe derivata.

Note per gli eredi

Quando si esegue l'override del OnNextButtonClick(WizardNavigationEventArgs) metodo in una classe derivata, assicurarsi di chiamare il OnNextButtonClick(WizardNavigationEventArgs) metodo della classe base in modo che i delegati registrati ricevano l'evento.

Si applica a

Vedi anche