TemplateField.InsertItemTemplate Proprietà

Definizione

Ottiene o imposta il modello per visualizzare un elemento in modalità di inserimento in un oggetto TemplateField.Gets or sets the template for displaying an item in insert mode in a TemplateField object.

public:
 virtual property System::Web::UI::ITemplate ^ InsertItemTemplate { System::Web::UI::ITemplate ^ get(); void set(System::Web::UI::ITemplate ^ value); };
[System.ComponentModel.Browsable(false)]
[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)]
[System.Web.UI.TemplateContainer(typeof(System.Web.UI.IDataItemContainer), System.ComponentModel.BindingDirection.TwoWay)]
public virtual System.Web.UI.ITemplate InsertItemTemplate { get; set; }
member this.InsertItemTemplate : System.Web.UI.ITemplate with get, set
Public Overridable Property InsertItemTemplate As ITemplate

Valore della proprietà

ITemplate

Oggetto implementato da ITemplate contenente il modello per visualizzare un elemento in modalità di inserimento in un oggetto TemplateField.A ITemplate-implemented object that contains the template for displaying an item in insert mode in a TemplateField. Il valore predefinito è null, che indica che la proprietà non è impostata.The default is null, which indicates that this property is not set.

Attributi

Esempio

Nell'esempio di codice riportato di seguito viene illustrato InsertItemTemplate come utilizzare la proprietà per creare un modello personalizzato per un elemento in modalità TemplateField di inserimento in una DetailsView riga di campo in un controllo.The following code example demonstrates how to use the InsertItemTemplate property to create a custom template for an item in insert mode in a TemplateField field row in a DetailsView control. Il modello Visualizza un DropDownList controllo che consente all'utente di selezionare un valore da un elenco predefinito.The template displays a DropDownList control that allows the user to select a value from a predefined list.


<%@ 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 StoresGridView_SelectedIndexChanged(Object sender, EventArgs e)
  {
    // Set the DataItemIndex property of the DetailsView control to display
    // the record selected from the GridView control.
   // StoresDetailView.DataItemIndex = StoresGridView.SelectedIndex;
  }
  
  void StoresDetailView_ItemInserting(Object sender, DetailsViewInsertEventArgs e)
  {
    // Get the state value from the DropDownList control in the 
    // DetailsView control.
    String state = GetState(); 
    
    // Add the state to the dictionary of values to 
    // insert into the database.
    e.Values["state"] = state;
  }
  
  void StoresDetailView_ItemInserted (Object sender, DetailsViewInsertedEventArgs e)
  {
    // Refresh the GridView control after a new record is inserted.
    StoresGridView.DataBind ();
  }
  
  String GetState()
  {
    String state;
    
    // Get the DropDownList control that contains the state value
    // in the DetailsView control.
    DropDownList list = (DropDownList)StoresDetailView.Rows[4].FindControl("StateList");
    
    if (list != null)
    {
      // Get the selected value of the DropDownList control.
      state = list.SelectedItem.Text;
    }
    else
    {
      // Set the state to an empty string ("").
      state = "";
    }
    
    return state;
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TemplateField InsertItemTemplate Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>TemplateField InsertItemTemplate Example</h3>

        <table cellspacing="10">
            
          <tr>
              
            <td>
                
              <asp:gridview id="StoresGridView" 
                datasourceid="StoresSqlDataSource" 
                autogeneratecolumns="false"
                autogenerateselectbutton="true"
                datakeynames="stor_id"
                onselectedindexchanged="StoresGridView_SelectedIndexChanged"   
                runat="server">
                
                <headerstyle backcolor="Blue"
                  forecolor="White"/>
                
                <columns>
                
                  <asp:boundfield datafield="stor_name"
                    headertext="Store Name"/>
                    
                  <asp:boundfield datafield="stor_address"
                    headertext="Address"/>
                    
                  <asp:boundfield datafield="city"
                    headertext="City"/>
                        
                  <asp:boundfield datafield="state"
                    headertext="State"/>
                    
                  <asp:boundfield datafield="zip"
                    headertext="ZIP Code"/>
                    
                </columns>
                
              </asp:gridview>
            
            </td>
                
            <td valign="top">
                
              <asp:detailsview id="StoresDetailView"
                datasourceid="StoresDetailsSqlDataSource"
                autogenerateinsertbutton="true"
                autogeneraterows="false" 
                datakeynames="stor_id"        
                gridlines="Both"
                oniteminserting="StoresDetailView_ItemInserting"
                oniteminserted="StoresDetailView_ItemInserted"    
                runat="server">
                
                <headerStyle backcolor="Navy"
                  forecolor="White"/>
                  <Fields>               
                  
                  <asp:boundfield datafield="stor_id"
                    headertext="Store ID"/>
                    
                  <asp:boundfield datafield="stor_name"
                    headertext="Store Name"/>
                    
                  <asp:boundfield datafield="stor_address"
                    headertext="Address"/>
                    
                  <asp:boundfield datafield="city"
                    headertext="City"/>
                        
                  <asp:templatefield headertext="State">
                    <itemtemplate>
                      <%#Eval("state")%>
                    </itemtemplate>
                    <insertitemtemplate>
                      <asp:dropdownlist id="StateList"
                        datasourceid="StateSqlDataSource"
                        datatextfield="state" 
                        runat="server"/>
                    </insertitemtemplate>
                  </asp:templatefield>
                    
                  <asp:boundfield datafield="zip"
                    headertext="ZIP Code"/>
                    
                </Fields>                    
              </asp:detailsview>
            
            </td>
                
          </tr>
            
        </table>
            
        <!-- This example uses Microsoft SQL Server and connects -->
        <!-- to the Pubs sample database.                        -->
        <asp:sqldatasource id="StoresSqlDataSource"  
          selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]" 
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </asp:sqldatasource>
            
        <asp:sqldatasource id="StoresDetailsSqlDataSource"  
          selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
          insertcommand="INSERT INTO stores([stor_id], [stor_name], [stor_address], [city], [state], [zip]) VALUES (@stor_id, @stor_name, @stor_address, @city, @state, @zip)" 
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </asp:sqldatasource>
        
        <!-- For this example, the states are retrieved from the  -->
        <!-- state field. For your application, you should use a  -->
        <!-- more complete source for the state values.           -->
        <asp:sqldatasource id="StateSqlDataSource"  
          selectcommand="SELECT Distinct [state] FROM [stores]"
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </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 StoresGridView_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)

    ' Set the DataItemIndex property of the DetailsView control to display
    ' the record selected from the GridView control.
        '  StoresDetailView.DataItem = StoresGridView.SelectedIndex
  
  End Sub
  
  Sub StoresDetailView_ItemInserting(ByVal sender As Object, ByVal e As DetailsViewInsertEventArgs)

    ' Get the state value from the DropDownList control in the 
    ' DetailsView control.
    Dim state As String = GetState()
    
    ' Add the state to the dictionary of values to 
    ' insert into the database.
    e.Values("state") = state
  
  End Sub
  
    Sub StoresDetailView_ItemInserted(ByVal sender As Object, ByVal e As DetailsViewInsertedEventArgs)

        ' Refresh the GridView control after a new record is inserted.
        StoresGridView.DataBind()
   
    End Sub
  
  Function GetState() As String

    Dim state As String
        
    ' Get the DropDownList control that contains the state value
    ' in the DetailsView control.
    Dim list As DropDownList = CType(StoresDetailView.Rows(4).FindControl("StateList"), DropDownList)
    
    If Not list Is Nothing Then

      ' Get the selected value of the DropDownList control.
      state = list.SelectedItem.Text
    
    Else
    
      ' Set the state to an empty string ("").
      state = ""
      
    End If
    
    Return state
  
  End Function

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TemplateField InsertItemTemplate Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>TemplateField InsertItemTemplate Example</h3>

        <table cellspacing="10">
            
          <tr>
              
            <td>
                
              <asp:gridview id="StoresGridView" 
                datasourceid="StoresSqlDataSource" 
                autogeneratecolumns="false"
                autogenerateselectbutton="true"
                datakeynames="stor_id"
                onselectedindexchanged="StoresGridView_SelectedIndexChanged"   
                runat="server">
                
                <headerstyle backcolor="Blue"
                  forecolor="White"/>
                
                <columns>
                
                  <asp:boundfield datafield="stor_name"
                    headertext="Store Name"/>
                    
                  <asp:boundfield datafield="stor_address"
                    headertext="Address"/>
                    
                  <asp:boundfield datafield="city"
                    headertext="City"/>
                        
                  <asp:boundfield datafield="state"
                    headertext="State"/>
                    
                  <asp:boundfield datafield="zip"
                    headertext="ZIP Code"/>
                    
                </columns>
                
              </asp:gridview>
            
            </td>
                
            <td valign="top">
                
              <asp:detailsview id="StoresDetailView"
                datasourceid="StoresDetailsSqlDataSource"
                autogenerateinsertbutton="true"
                autogeneraterows="false" 
                datakeynames="stor_id"        
                gridlines="Both"
                oniteminserting="StoresDetailView_ItemInserting"
                oniteminserted="StoresDetailView_ItemInserted"    
                runat="server">
                
                <headerstyle backcolor="Navy"
                  forecolor="White"/>
                                    
                <fields>
                  
                  <asp:boundfield datafield="stor_id"
                    headertext="Store ID"/>
                    
                  <asp:boundfield datafield="stor_name"
                    headertext="Store Name"/>
                    
                  <asp:boundfield datafield="stor_address"
                    headertext="Address"/>
                    
                  <asp:boundfield datafield="city"
                    headertext="City"/>
                        
                  <asp:templatefield headertext="State">
                    <itemtemplate>
                      <%#Eval("state")%>
                    </itemtemplate>
                    <insertitemtemplate>
                      <asp:dropdownlist id="StateList"
                        datasourceid="StateSqlDataSource"
                        datatextfield="state" 
                        runat="server"/>
                    </insertitemtemplate>
                  </asp:templatefield>
                    
                  <asp:boundfield datafield="zip"
                    headertext="ZIP Code"/>
                    
                </fields>
                    
              </asp:detailsview>
            
            </td>
                
          </tr>
            
        </table>
            
        <!-- This example uses Microsoft SQL Server and connects -->
        <!-- to the Pubs sample database.                        -->
        <asp:sqldatasource id="StoresSqlDataSource"  
          selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]" 
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </asp:sqldatasource>
            
        <asp:sqldatasource id="StoresDetailsSqlDataSource"  
          selectcommand="SELECT [stor_id], [stor_name], [stor_address], [city], [state], [zip] FROM [stores]"
          insertcommand="INSERT INTO stores([stor_id], [stor_name], [stor_address], [city], [state], [zip]) VALUES (@stor_id, @stor_name, @stor_address, @city, @state, @zip)" 
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </asp:sqldatasource>
        
        <!-- For this example, the states are retrieved from the  -->
        <!-- state field. For your application, you should use a  -->
        <!-- more complete source for the state values.           -->
        <asp:sqldatasource id="StateSqlDataSource"  
          selectcommand="SELECT Distinct [state] FROM [stores]"
          connectionstring="server=localhost;database=pubs;integrated security=SSPI"
          runat="server">
        </asp:sqldatasource>
            
      </form>
  </body>
</html>

Commenti

Utilizzare la InsertItemTemplate proprietà per specificare il contenuto personalizzato visualizzato per un elemento in modalità di inserimento in TemplateField un oggetto.Use the InsertItemTemplate property to specify the custom content displayed for an item in insert mode in a TemplateField object. Definire il contenuto creando un modello che specifica come viene eseguito il rendering dell'elemento in modalità di inserimento.Define the content by creating a template that specifies how the item in insert mode is rendered.

Per specificare un modello, inserire prima i tag <InsertItemTemplate> <TemplateField> di apertura e di chiusura tra i tag di apertura e di chiusura dell'elemento.To specify a template, first place opening and closing <InsertItemTemplate> tags between the opening and closing tags of the <TemplateField> element. Successivamente, aggiungere il contenuto personalizzato tra i tag di apertura <InsertItemTemplate> e di chiusura.Next, add the custom content between the opening and closing <InsertItemTemplate> tags. Il contenuto può essere semplice come testo normale o più complesso, ad esempio incorporando altri controlli nel modello.The content can be as simple as plain text or more complex (embedding other controls in the template, for example).

Per accedere a livello di codice a un controllo definito in un modello, TableCell determinare prima di tutto l'oggetto nel controllo con associazione a dati che contiene il controllo.To programmatically access a control defined in a template, first determine which TableCell object in the data-bound control contains the control. Usare quindi la Controls raccolta TableCell dell'oggetto per accedere al controllo.Next, use the Controls collection of the TableCell object to access the control. È anche possibile usare il FindControl metodo TableCell dell'oggetto per trovare il controllo, se il controllo ha una ID proprietà specificata.You can also use the FindControl method of the TableCell object to find the control, if the control has an ID property specified.

Nota

Non tutti i controlli associati a dati supportano questo modello. questo modello è supportato solo dai controlli con associazione a dati che consentono di inserire un record, ad DetailsView esempio il controllo.Not all data-bound controls support this template This template is supported only by data-bound controls that allow you to insert a record, such as the DetailsView control.

Si applica a

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