TemplateField.EditItemTemplate 屬性

參考

定義

命名空間:: System.Web.UI.WebControls

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得或設定顯示 TemplateField 物件中處於編輯模式之項目的樣板。

public:
 virtual property System::Web::UI::ITemplate ^ EditItemTemplate { 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 EditItemTemplate { 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.EditItemTemplate : System.Web.UI.ITemplate with get, set

Public Overridable Property EditItemTemplate As ITemplate

屬性值

ITemplate

ITemplate 實作的物件，包含顯示 TemplateField 中處於編輯模式之項目的樣板。預設值為 null，表示這個屬性尚未設定。

屬性: BrowsableAttribute PersistenceModeAttribute TemplateContainerAttribute

範例

下列程式碼範例示範如何使用 EditItemTemplate 屬性，在控制項的欄位 GridView 資料行中 TemplateField ，以編輯模式建立專案的自訂範本。範本包含驗證服務器控制項，以防止使用者將值欄位保留空白。

<%@ 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 AuthorsGridView_RowUpdating (Object sender, GridViewUpdateEventArgs e)
  {
    
    // The GridView control does not automatically extract updated values 
    // from TemplateField column fields. These values must be added manually 
    // to the NewValues dictionary.
    
    // Get the GridViewRow object that represents the row being edited
    // from the Rows collection of the GridView control.
    int index = AuthorsGridView.EditIndex;
    GridViewRow row = AuthorsGridView.Rows[index];
    
    // Get the controls that contain the updated values. In this
    // example, the updated values are contained in the TextBox 
    // controls declared in the edit item templates of each TemplateField 
    // column fields in the GridView control.
    TextBox lastName = (TextBox)row.FindControl("LastNameTextBox");
    TextBox firstName = (TextBox)row.FindControl("FirstNameTextBox");
    
    // Add the updated values to the NewValues dictionary. Use the
    // parameter names declared in the parameterized update query 
    // string for the key names.
    e.NewValues["au_lname"] = lastName.Text;
    e.NewValues["au_fname"] = firstName.Text;    
          
  }

</script>

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

      <!-- The GridView control automatically sets the columns     -->
      <!-- specified in the datakeynames attribute as read-only.   -->
      <!-- No input controls are rendered for these columns in     -->
      <!-- edit mode.                                              -->
      <asp:gridview id="AuthorsGridView" 
        datasourceid="AuthorsSqlDataSource" 
        autogeneratecolumns="false"
        autogenerateeditbutton="true"
        datakeynames="au_id"
        cellpadding="10"
        onrowupdating="AuthorsGridView_RowUpdating"      
        runat="server">
                
        <columns>
        
          <asp:boundfield datafield="au_id"
            headertext="Author ID"
            readonly="true"/>
            
          <asp:templatefield headertext="Last Name"
            itemstyle-verticalalign="Top">
            
            <itemtemplate>
              <%#Eval("au_lname")%>
            </itemtemplate>
            
            <edititemtemplate>
              <asp:textbox id="LastNameTextBox"
                text='<%#Eval("au_lname")%>'
                width="90"
                runat="server"/>
              <br/>
              <asp:requiredfieldvalidator id="LastNameRequiredValidator"
                controltovalidate="LastNameTextBox"
                display="Dynamic"
                text="Please enter a last name." 
                runat="server" />                                      
            </edititemtemplate>
            
          </asp:templatefield>
          
          <asp:templatefield headertext="First Name"
            itemstyle-verticalalign="Top">
            
            <itemtemplate>
              <%#Eval("au_fname")%>
            </itemtemplate>
            
            <edititemtemplate>
              <asp:textbox id="FirstNameTextBox"
                text='<%#Eval("au_fname")%>'
                width="90"
                runat="server"/>
              <br/>
              <asp:requiredfieldvalidator id="FirstNameRequiredValidator"
                controltovalidate="FirstNameTextBox"
                display="Dynamic"
                text="Please enter a first name."
                runat="server" />                      
            </edititemtemplate>
            
          </asp:templatefield>
          
          <asp:checkboxfield datafield="contract" 
            headertext="Contract"
            readonly="true"/>
            
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Pubs sample database.                         -->
      <asp:sqldatasource id="AuthorsSqlDataSource"  
        selectcommand="SELECT [au_id], [au_lname], [au_fname], [contract] FROM [authors]"             
        updatecommand="UPDATE authors SET au_lname=@au_lname, au_fname=@au_fname WHERE (authors.au_id = @au_id)" 
        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 AuthorsGridView_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
    
    ' The GridView control does not automatically extract updated values 
    ' from TemplateField column fields. These values must be added manually 
    ' to the NewValues dictionary.
    
    ' Get the GridViewRow object that represents the row being edited
    ' from the Rows collection of the GridView control.
    Dim index As Integer = AuthorsGridView.EditIndex
    Dim row As GridViewRow = AuthorsGridView.Rows(index)
    
    ' Get the controls that contain the updated values. In this
    ' example, the updated values are contained in the TextBox 
    ' controls declared in the edit item templates of each TemplateField 
    ' column fields in the GridView control.
    Dim lastName As TextBox = CType(row.FindControl("LastNameTextBox"), TextBox)
    Dim firstName As TextBox = CType(row.FindControl("FirstNameTextBox"), TextBox)
    
    ' Add the updated values to the NewValues dictionary. Use the
    ' parameter names declared in the parameterized update query 
    ' string for the key names.
    e.NewValues("au_lname") = lastName.Text
    e.NewValues("au_fname") = firstName.Text
          
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>TemplateField EditItemTemplate Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>TemplateField EditItemTemplate Example</h3>

      <!-- The GridView control automatically sets the columns     -->
      <!-- specified in the datakeynames attribute as read-only.   -->
      <!-- No input controls are rendered for these columns in     -->
      <!-- edit mode.                                              -->
      <asp:gridview id="AuthorsGridView" 
        datasourceid="AuthorsSqlDataSource" 
        autogeneratecolumns="false"
        autogenerateeditbutton="true"
        datakeynames="au_id"
        cellpadding="10"
        onrowupdating="AuthorsGridView_RowUpdating"      
        runat="server">
                
        <columns>
        
          <asp:boundfield datafield="au_id"
            headertext="Author ID"
            readonly="true"/>
            
          <asp:templatefield headertext="Last Name"
            itemstyle-verticalalign="Top">
            
            <itemtemplate>
              <%#Eval("au_lname")%>
            </itemtemplate>
            
            <edititemtemplate>
              <asp:textbox id="LastNameTextBox"
                text='<%#Eval("au_lname")%>'
                width="90"
                runat="server"/>
              <br/>
              <asp:requiredfieldvalidator id="LastNameRequiredValidator"
                controltovalidate="LastNameTextBox"
                display="Dynamic"
                text="Please enter a last name." 
                runat="server" />                                      
            </edititemtemplate>
            
          </asp:templatefield>
          
          <asp:templatefield headertext="First Name"
            itemstyle-verticalalign="Top">
            
            <itemtemplate>
              <%#Eval("au_fname")%>
            </itemtemplate>
            
            <edititemtemplate>
              <asp:textbox id="FirstNameTextBox"
                text='<%#Eval("au_fname")%>'
                width="90"
                runat="server"/>
              <br/>
              <asp:requiredfieldvalidator id="FirstNameRequiredValidator"
                controltovalidate="FirstNameTextBox"
                display="Dynamic"
                text="Please enter a first name."
                runat="server" />                      
            </edititemtemplate>
            
          </asp:templatefield>
          
          <asp:checkboxfield datafield="contract" 
            headertext="Contract"
            readonly="true"/>
            
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Pubs sample database.                         -->
      <asp:sqldatasource id="AuthorsSqlDataSource"  
        selectcommand="SELECT [au_id], [au_lname], [au_fname], [contract] FROM [authors]"             
        updatecommand="UPDATE authors SET au_lname=@au_lname, au_fname=@au_fname WHERE (authors.au_id = @au_id)" 
        connectionstring="server=localhost;database=pubs;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

備註

EditItemTemplate使用屬性來指定物件中 TemplateField 處於編輯模式的專案所顯示的自訂內容。藉由建立範本來定義內容，以指定編輯模式中的專案呈現方式。屬性 EditItemTemplate 通常包含輸入控制項，讓使用者修改資料來源中的值。

若要指定範本，請先在元素的開頭和結束記號之間放置開頭和結尾 <EditItemTemplate> 標記 <TemplateField> 。接下來，在開頭和結尾 <EditItemTemplate> 標記之間新增自訂內容。內容可以像純文字一樣簡單，或更複雜的 (在範本中內嵌其他控制項，例如) 。

若要以程式設計方式存取範本中定義的控制項，請先判斷資料繫結控制項中的哪個 TableCell 物件包含控制項。接下來，使用 Controls 物件的集合 TableCell 來存取控制項。如果控制項已 ID 指定屬性，您也可以使用 FindControl 物件的方法來 TableCell 尋找控制項。

適用於

TemplateField.EditItemTemplate 屬性

定義

屬性值

範例

備註

適用於

另請參閱

意見反應

其他資源