Condividi tramite

ObjectList.CommandStyle Proprietà

  • Riferimento

Definizione

Spazio dei nomi:
System.Web.UI.MobileControls
Assembly:
System.Web.Mobile.dll

Ottiene o imposta lo stile utilizzato per i comandi dell'elenco di oggetti. Questa API è obsoleta. Per informazioni su come sviluppare applicazioni per dispositivi mobili ASP.NET, vedere App per dispositivi mobili & Siti con ASP.NET.

public:
 property System::Web::UI::MobileControls::Style ^ CommandStyle { System::Web::UI::MobileControls::Style ^ get(); void set(System::Web::UI::MobileControls::Style ^ value); };
public System.Web.UI.MobileControls.Style CommandStyle { get; set; }
member this.CommandStyle : System.Web.UI.MobileControls.Style with get, set
Public Property CommandStyle As Style

Valore della proprietà

Style

Stile utilizzato per i comandi dell'elenco di oggetti.

Esempio

Nell'esempio di codice seguente viene illustrato come usare la CommandStyle proprietà per impostare lo stile di un ObjectList oggetto usando una sezione dichiarativa DeviceSpecific per specificare impostazioni diverse per dispositivi diversi CommandStyle .

Nota

L'esempio di codice seguente usa il modello di codice a file singolo e potrebbe non funzionare correttamente se copiato direttamente in un file code-behind. Questo esempio di codice deve essere copiato in un file di testo vuoto con un'estensione .aspx. Per altre informazioni, vedere ASP.NET modello di codice pagina web form.

<%@ Page Language="C#" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>

<script runat="server">
    int bakeryCount = 0, dairyCount = 0, produceCount = 0;

    public void Page_Load(Object o, EventArgs e)
    {
        if (!IsPostBack)
        {   // Create an array and bind it to the list
            ArrayList arr = new ArrayList();
            arr.Add (new GroceryItem 
                ("Bakery", "Rolls", "On Sale"));
            arr.Add (new GroceryItem 
                ("Dairy", "Eggnog", "Half price"));
            arr.Add (new GroceryItem 
                ("Produce", "Apples", 
                "A dollar a bushel"));
            arr.Add (new GroceryItem 
                ("Bakery", "Bread", "On Sale"));

            List1.DataSource = arr;
            List1.DataBind ();

            // To show only one field on opening page,
            // comment the next line
            List1.TableFields = "Item;Department";
            List1.LabelField = "Department";

            // Display a report after items are databound
            string txt = "Number of items by Department<br>Produce: {0}<br />" +
                "Dairy: {1}<br />Bakery: {2}";
            TextView2.Text = String.Format(txt, produceCount, dairyCount, bakeryCount);
        }
    }

    // Command event for buttons
    public void List1_Click(Object sender, 
        ObjectListCommandEventArgs e)
    {
        if (e.CommandName == "Reserve")
           ActiveForm = Form2;
        else if (e.CommandName == "Buy")
           ActiveForm = Form3;
        else
           ActiveForm = Form4;
    }

    //<Snippet4>
    // Count items in each department
    private void List1_ItemDataBind(object sender, ObjectListDataBindEventArgs e)
    {
        switch (((GroceryItem)e.DataItem).Department)
        {
            case "Bakery":
                bakeryCount++;
                break;
            case "Dairy":
                dairyCount++;
                break;
            case "Produce":
                produceCount++;
                break;
        }
    }
    //</Snippet4>

    //<Snippet2>
    private void AllFields_Click(object sender, EventArgs e)
    {
        ActiveForm = Form5;
        string spec = "{0}: {1}<br/>";
        IObjectListFieldCollection flds = List1.AllFields;
        for (int i = 0; i < flds.Count; i++)
            TextView1.Text += 
                String.Format(spec, (i + 1), flds[i].Title);
    }
    //</Snippet2>

    // Structure for ArrayList records
    private class GroceryItem
    {   // A private class for the Grocery List
        private String _department, _item, _status;
        public GroceryItem(string department,
            string item, string status)
        {
            _department = department;
            _item = item;
            _status = status;
        }
        public String Department
        { get { return _department; } }
        public String Item
        { get { return _item; } }
        public String Status
        { get { return _status; } }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form id="Form1" runat="server" BackColor="LightBlue">
        <mobile:ObjectList id="List1" runat="server" 
            OnItemCommand="List1_Click" OnItemDataBind="List1_ItemDataBind">
            <DeviceSpecific ID="DeviceSpecific1" Runat="server">
                <!-- See Web.config for filters -->
                <Choice Filter="isWML11" CommandStyle-Font-Bold="NotSet" />
                <Choice CommandStyle-Font-Bold="true" 
                    CommandStyle-Font-Name="Arial" />
            </DeviceSpecific>
            <Command Name="Reserve" Text="Reserve" />
            <Command Name="Buy" Text="Buy" />
        </mobile:ObjectList>
        <mobile:Command ID="AllFieldsCmd" Runat="server" 
            OnClick="AllFields_Click">
            List All Fields</mobile:Command>
        <mobile:TextView ID="TextView2" Runat="server" />
    </mobile:Form>
    <mobile:Form id="Form2" runat="server" BackColor="LightBlue">
        <mobile:Label id="ResLabel" runat="server"
            text="Sale item reservation system coming soon!" />
        <mobile:Link id="ResLink" NavigateURL="#Form1" 
            runat="server" text="Return" />
    </mobile:Form>
    <mobile:Form id="Form3" runat="server" BackColor="LightBlue">
        <mobile:Label id="BuyLabel" runat="server"
            Text="Online purchasing system coming soon!" />
        <mobile:Link ID="BuyLink" NavigateURL="#Form1" 
            Runat="server" text="Return" />
    </mobile:Form>
    <mobile:Form id="Form4" Runat="server" BackColor="LightBlue">
        <mobile:Label ID="DefLabel" Runat="server" 
             Text="Detailed item descriptions will be here soon!"/>
        <mobile:Link ID="DefLink" NavigateURL="#Form1" 
            Runat="server" Text="Return" />
    </mobile:Form>
    <mobile:Form ID="Form5" Runat="server">
        <mobile:Label Runat="server">
            List of AllFields:</mobile:Label>
        <mobile:TextView ID="TextView1" Runat="server" />
        <mobile:Link Runat="server" NavigateUrl="#Form1" 
            Text="Return"></mobile:Link>
    </mobile:Form>
</body>
</html>

<%@ Page Language="VB" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>

<script runat="server">
    Dim bakeryCount, dairyCount, produceCount As Integer

    Private Sub Page_Load(ByVal o As Object, ByVal e As EventArgs)
        If Not IsPostBack Then
            ' Create an array and bind it to the list
            Dim arr As New ArrayList()
            arr.Add(New GroceryItem _
                ("Bakery", "Rolls", "On Sale"))
            arr.Add(New GroceryItem _
                ("Dairy", "Eggnog", "Half price"))
            arr.Add(New GroceryItem _
                ("Produce", "Apples", _
                "A dollar a bushel"))
            arr.Add(New GroceryItem _
                ("Bakery", "Bread", "On Sale"))

            List1.DataSource = arr
            List1.DataBind()

            ' To show only one field on opening page,
            ' comment the next line
            List1.TableFields = "Item;Department"
            List1.LabelField = "Department"

            ' Display a report after items are databound
            Const txt As String = "Number of items by Department<br>Produce: " + _
                "{0}<br />Dairy: {1}<br />Bakery: {2}"
            TextView2.Text = String.Format(txt, produceCount, dairyCount, bakeryCount)
        End If
    End Sub

    ' Command event for buttons
    Private Sub List1_Click(ByVal sender As Object, _
        ByVal e As ObjectListCommandEventArgs)

        If e.CommandName = "Reserve" Then
            ActiveForm = Form2
        ElseIf e.CommandName = "Buy" Then
            ActiveForm = Form3
        Else
            ActiveForm = Form4
        End If
    End Sub

    '<Snippet4>
    ' Count items in each department
    Private Sub List1_ItemDataBind(ByVal sender As Object, ByVal e As ObjectListDataBindEventArgs)
        Select Case CType(e.DataItem, GroceryItem).Department
            Case "Bakery"
                bakeryCount += 1
            Case "Dairy"
                dairyCount += 1
            Case "Produce"
                produceCount += 1
        End Select
    End Sub
    '</Snippet4>

    '<Snippet2>
    Private Sub AllFields_Click(ByVal sender As Object, ByVal e As EventArgs)

        ActiveForm = Form5
        Dim spec As String = "{0}: {1}<br/>"
        Dim flds As IObjectListFieldCollection = List1.AllFields
        Dim i As Integer
        For i = 0 To flds.Count - 1
            TextView1.Text += _
                String.Format(spec, (i + 1), flds(i).Title)
        Next
    End Sub
    '</Snippet2>

    ' Structure for ArrayList records
    Private Class GroceryItem
        ' A private class for the Grocery List
        Private _department, _item, _status As String
        Public Sub New(ByVal department As String, _
            ByVal item As String, ByVal status As String)
            _department = department
            _item = item
            _status = status
        End Sub
        Public ReadOnly Property Department() As String
            Get
                Return _department
            End Get
        End Property
        Public ReadOnly Property Item() As String
            Get
                Return _item
            End Get
        End Property
        Public ReadOnly Property Status() As String
            Get
                Return _status
            End Get
        End Property
    End Class
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form id="Form1" runat="server" BackColor="LightBlue">
        <mobile:ObjectList id="List1" runat="server" 
            OnItemCommand="List1_Click" OnItemDataBind="List1_ItemDataBind">
            <DeviceSpecific ID="DeviceSpecific1" Runat="server">
                <!-- See Web.config for filters -->
                <Choice Filter="isWML11" CommandStyle-Font-Bold="NotSet" />
                <Choice CommandStyle-Font-Bold="true" 
                    CommandStyle-Font-Name="Arial" />
            </DeviceSpecific>
            <Command Name="Reserve" Text="Reserve" />
            <Command Name="Buy" Text="Buy" />
        </mobile:ObjectList>
        <mobile:Command ID="AllFieldsCmd" Runat="server" 
            OnClick="AllFields_Click">
            List All Fields</mobile:Command>
        <mobile:TextView ID="TextView2" Runat="server" />
    </mobile:Form>
    <mobile:Form id="Form2" runat="server" BackColor="LightBlue">
        <mobile:Label id="ResLabel" runat="server"
            text="Sale item reservation system coming soon!" />
        <mobile:Link id="ResLink" NavigateURL="#Form1" 
            runat="server" text="Return" />
    </mobile:Form>
    <mobile:Form id="Form3" runat="server" BackColor="LightBlue">
        <mobile:Label id="BuyLabel" runat="server"
            Text="Online purchasing system coming soon!" />
        <mobile:Link ID="BuyLink" NavigateURL="#Form1" 
            Runat="server" text="Return" />
    </mobile:Form>
    <mobile:Form id="Form4" Runat="server" BackColor="LightBlue">
        <mobile:Label ID="DefLabel" Runat="server" 
             Text="Detailed item descriptions will be here soon!"/>
        <mobile:Link ID="DefLink" NavigateURL="#Form1" 
            Runat="server" Text="Return" />
    </mobile:Form>
    <mobile:Form ID="Form5" Runat="server">
        <mobile:Label ID="Label1" Runat="server">
            List of AllFields:</mobile:Label>
        <mobile:TextView ID="TextView1" Runat="server" />
        <mobile:Link ID="Link1" Runat="server" NavigateUrl="#Form1" 
            Text="Return"></mobile:Link>
    </mobile:Form>
</body>
</html>

Si tratta di un file di esempio Web.config con diversi filtri specifici del dispositivo.

Commenti

Se questa proprietà è impostata a livello di codice, non viene mantenuta a meno che la proprietà non sia impostata dinamicamente in ogni richiesta. Se la proprietà è impostata dichiarativamente, la proprietà viene impostata su ogni richiesta. Non prevede alcun valore predefinito.

Poiché i diversi dispositivi hanno requisiti diversi per gli stili. È possibile che siano disponibili diverse DeviceSpecific impostazioni per la CommandStyle proprietà.

Si applica a

Vedi anche