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DetailsView.ChangeMode(DetailsViewMode) Metodo

  • Riferimento

Definizione

Spazio dei nomi:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Pone il controllo DetailsView nella modalità specificata.

public:
 void ChangeMode(System::Web::UI::WebControls::DetailsViewMode newMode);
public void ChangeMode (System.Web.UI.WebControls.DetailsViewMode newMode);
member this.ChangeMode : System.Web.UI.WebControls.DetailsViewMode -> unit
Public Sub ChangeMode (newMode As DetailsViewMode)

Parametri

newMode
DetailsViewMode

Uno dei valori di DetailsViewMode.

Esempio

Nell'esempio di codice seguente viene illustrato come utilizzare il metodo per restituire il ChangeMode DetailsView controllo alla modalità di sola lettura ogni volta che l'utente passa a un altro record.


<%@ 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 CustomerDetailView_PageIndexChanged(Object sender, EventArgs e)
  {
    // By default, if the DetailsView control is in edit mode and
    // user navigates to another page, the DetailsView control
    // remains in edit mode. In this example, the ChangeMode 
    // method is used to put the DetailsView control in read-only  
    // mode whenever the user navigates to another record.
      CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly);
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsView ChangeMode Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView ChangeMode Example</h3>
                
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          datakeynames="CustomerID"
          autogenerateeditbutton="true"  
          autogeneraterows="true"
          allowpaging="true"
          OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
          runat="server">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
                    
        </asp:detailsview>
        
        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:SqlDataSource ID="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
          InsertCommand="INSERT INTO [Customers]([CustomerID],
            [CompanyName], [Address], [City], [PostalCode], [Country]) 
            VALUES (@CustomerID, @CompanyName, @Address, @City, 
            @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </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 CustomerDetailView_PageIndexChanged(ByVal sender As Object, _
        ByVal e As EventArgs)
        ' By default, if the DetailsView control is in edit mode and
        ' user navigates to another page, the DetailsView control
        ' remains in edit mode. In this example, the ChangeMode 
        ' method is used to put the DetailsView control in read-only  
        ' mode whenever the user navigates to another record.
        CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly)
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsView ChangeMode Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView ChangeMode Example</h3>
                
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          datakeynames="CustomerID"
          autogenerateeditbutton="true"  
          autogeneraterows="true"
          allowpaging="true"
          OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
          runat="server">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
                    
        </asp:detailsview>
        
        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:SqlDataSource ID="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
          InsertCommand="INSERT INTO [Customers]([CustomerID],
            [CompanyName], [Address], [City], [PostalCode], [Country]) 
            VALUES (@CustomerID, @CompanyName, @Address, @City, 
            @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
  </body>
</html>

Commenti

Utilizzare il ChangeMode metodo per passare a livello di codice il DetailsView controllo tra la modalità di modifica, inserimento e sola lettura. Questo metodo aggiorna anche la CurrentMode proprietà con la modalità specificata. Nella tabella seguente sono elencati i diversi valori della modalità.

Mode Descrizione
DetailsViewMode.Edit Il DetailsView controllo è in modalità di modifica, che consente all'utente di aggiornare i valori di un record.
DetailsViewMode.Insert Il DetailsView controllo è in modalità di inserimento, che consente all'utente di aggiungere un nuovo record all'origine dati.
DetailsView.ReadOnly Il DetailsView controllo è in modalità di sola lettura, ovvero la modalità di visualizzazione normale.

Si applica a

Vedi anche