HtmlWindow.Confirm(String) Metodo

Definizione

Spazio dei nomi:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Visualizza una finestra di dialogo con un messaggio e i pulsanti Yes e No.Displays a dialog box with a message and buttons to solicit a yes/no response.

public:
 bool Confirm(System::String ^ message);
public bool Confirm (string message);
member this.Confirm : string -> bool
Public Function Confirm (message As String) As Boolean

Parametri

message
String

Testo da visualizzare all'utente.The text to display to the user.

Restituisce

Boolean

true se l'utente ha fatto clic su Yes, false se l'utente ha fatto clic su No o ha chiuso la finestra di dialogo.true if the user clicked Yes; false if the user clicked No or closed the dialog box.

Esempio

Copiare il codice HTML seguente e salvarlo in un modulo denominato orderForm.htm:Copy the following HTML and save it into a form called orderForm.htm:

<HTML>
<BODY>
<FORM name="NewOrderForm">
Select Part Type:
<SELECT name="PartType">
  <OPTION>AZ-3700
  <OPTION>AZ-3701
  <OPTION>AZ-3702  
</SELECT><br/>
Quantity: <INPUT type="text" name="PartQty" size="2" maxsize="2" /><br/>
Building/Desk:
<INPUT type="text" name="PartBuilding" size="2" maxsize="2"/> /  
<INPUT type="text" name="PartDesk" size="2" maxsize="2"/><p/>
<INPUT type="submit" value="Transmit Order"/>
</FORM>
</BODY>
</HTML>

Nell'esempio seguente viene visualizzata una finestra di Confirm dialogo quando l'utente invia NewOrderForm .The following example displays a Confirm dialog box when the user submits NewOrderForm.

HtmlWindow orderWindow;
HtmlElement formElement;

private void LoadOrderForm()
{
    if (!(webBrowser1.Document == null)) 
    {
        HtmlDocument doc = webBrowser1.Document;
        orderWindow = doc.Window.OpenNew(new Uri("file://C:\\orderForm.htm"), "");

        //!TODO: Perform this in the load event handler!
        // Get order form. 
        HtmlElementCollection elemCollection = doc.All.GetElementsByName("NewOrderForm");
        if (elemCollection.Count == 1) 
        {
            formElement = elemCollection[0];
            //!TODO: Awaiting DCR
            //formElement.AttachEventHandler("onsubmit", new HtmlElementEventHandler(Form_Submit));
        }
    }
}

private void Form_Submit(object sender, HtmlElementEventArgs e)
{
    bool doOrder = orderWindow.Confirm("Once you transmit this order, you cannot cancel it. Submit?");
    if (!doOrder)
    {
        //Cancel the submit. 
        e.ReturnValue = false;
        orderWindow.Alert("Submit cancelled.");
    }
}

Dim OrderWindow As HtmlWindow
Dim FormElement As HtmlElement

Private Sub NewOrderButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewOrderButton.Click
    LoadOrderForm()
End Sub

Private Sub LoadOrderForm()
    If (WebBrowser1.Document IsNot Nothing) Then
        With WebBrowser1.Document
            OrderWindow = .Window.OpenNew(New Uri("file://C:\\orderForm.htm"), "")

            ' !TODO: Perform this in the load event handler!
            ' Get order form. 
            Dim ElemCollection As System.Windows.Forms.HtmlElementCollection = .All.GetElementsByName("NewOrderForm")
            If (ElemCollection.Count = 1) Then
                FormElement = ElemCollection(0)
                ' TODO: Resolve this. 
                'FormElement.AttachEventHandler("onsubmit", New HtmlElementEventHandler(AddressOf Form_Submit))
            End If
        End With

    End If
End Sub

Private Sub Form_Submit(ByVal sender As Object, ByVal e As HtmlElementEventArgs)
    Dim DoOrder As Boolean = OrderWindow.Confirm("Once you transmit this order, you cannot cancel it. Submit?")
    If (Not DoOrder) Then
        ' Cancel the submit. 
        e.ReturnValue = False
        OrderWindow.Alert("Submit cancelled.")
    End If
End Sub

Commenti

Confirm Visualizza una finestra di dialogo modale. l'utente non sarà in grado di accedere alla pagina HTML sottostante senza prima chiudere questa finestra di dialogo.Confirm displays a modal dialog box; the user will not be able to access the underlying HTML page without first closing this dialog box.

Si applica a

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