TemplateField.InsertItemTemplate Свойство

Определение

Получает или задает шаблон для отображения элемента в режиме вставки в объекте 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; }
[<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)>]
member this.InsertItemTemplate : System.Web.UI.ITemplate with get, set
Public Overridable Property InsertItemTemplate As ITemplate

Значение свойства

ITemplate

Реализованный объект ITemplate, содержащий шаблон для отображения элемента в режиме вставки в объекте TemplateField.A ITemplate-implemented object that contains the template for displaying an item in insert mode in a TemplateField. Значение по умолчанию — "null", указывающее, что это свойство не задано.The default is null, which indicates that this property is not set.

Атрибуты

Примеры

В следующем примере кода показано использование InsertItemTemplate свойства для создания пользовательского шаблона для элемента в режиме вставки в TemplateField строке поля DetailsView элемента управления.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. Шаблон отображает DropDownList элемент управления, позволяющий пользователю выбрать значение из предопределенного списка.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>

Комментарии

Используйте InsertItemTemplate свойство, чтобы указать пользовательское содержимое, отображаемое для элемента в режиме вставки в TemplateField объекте.Use the InsertItemTemplate property to specify the custom content displayed for an item in insert mode in a TemplateField object. Определите содержимое, создав шаблон, указывающий способ подготовки элемента в режиме вставки.Define the content by creating a template that specifies how the item in insert mode is rendered.

Чтобы указать шаблон, сначала поместите открывающий и закрывающий <InsertItemTemplate> теги между открывающим и закрывающим тегами <TemplateField> элемента.To specify a template, first place opening and closing <InsertItemTemplate> tags between the opening and closing tags of the <TemplateField> element. Затем добавьте пользовательское содержимое между открывающим и закрывающим <InsertItemTemplate> тегами.Next, add the custom content between the opening and closing <InsertItemTemplate> tags. Содержимое может быть простым обычным текстом или более сложным (например, внедрять другие элементы управления в шаблоне).The content can be as simple as plain text or more complex (embedding other controls in the template, for example).

Для программного доступа к элементу управления, определенному в шаблоне, сначала необходимо определить, какой TableCell объект в элементе управления с привязкой к данным содержит элемент управления.To programmatically access a control defined in a template, first determine which TableCell object in the data-bound control contains the control. Затем используйте Controls коллекцию TableCell объекта для доступа к элементу управления.Next, use the Controls collection of the TableCell object to access the control. Можно также использовать FindControl метод TableCell объекта для поиска элемента управления, если для элемента управления ID задано свойство.You can also use the FindControl method of the TableCell object to find the control, if the control has an ID property specified.

Примечание

Не все элементы управления с привязкой к данным поддерживают этот шаблон. Этот шаблон поддерживается только элементами управления с привязкой к данным, которые позволяют вставить запись, например DetailsView элемент управления.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.

Применяется к

См. также раздел