ListView.InsertItem Properti

Referensi

Definisi

Ruang nama:: System.Web.UI.WebControls

Rakitan:: System.Web.Extensions.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan item ListView sisipkan kontrol.

public:
 virtual property System::Web::UI::WebControls::ListViewItem ^ InsertItem { System::Web::UI::WebControls::ListViewItem ^ get(); };

[System.ComponentModel.Browsable(false)]
public virtual System.Web.UI.WebControls.ListViewItem InsertItem { get; }

[<System.ComponentModel.Browsable(false)>]
member this.InsertItem : System.Web.UI.WebControls.ListViewItem

Public Overridable ReadOnly Property InsertItem As ListViewItem

Nilai Properti

ListViewItem

Objek yang mewakili item ListView sisipkan kontrol.

Atribut: BrowsableAttribute

Contoh

Contoh berikut menunjukkan cara mendapatkan item sisipkan dengan menggunakan InsertItem properti untuk mengakses kontrol yang terkandung dalam InsertItemTemplate templat.

Penting

Contoh ini berisi kotak teks yang menerima input pengguna, yang merupakan potensi ancaman keamanan. Secara default, ASP.NET halaman Web memvalidasi bahwa input pengguna tidak menyertakan elemen skrip atau HTML. Untuk informasi selengkapnya, lihat Gambaran Umum Eksploitasi Skrip.

<%@ 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">
  
  protected void CountriesListView_ItemInserting(object sender, ListViewInsertEventArgs e)
  {
    // Get the controls that are contained in the insert item.
    TextBox countryCodeTextBox = 
      (TextBox)CountriesListView.InsertItem.FindControl("CountryCodeTextBox");
    TextBox nameTextBox = 
      (TextBox)CountriesListView.InsertItem.FindControl("NameTextBox");

    //Check if the controls are empty.
    if ((countryCodeTextBox.Text.Trim().Length == 0) ||
      (nameTextBox.Text.Trim().Length == 0))
    {
      MessageLabel.Text = 
        "The system could not insert the item. All fields are required.";
      e.Cancel = true;
      return;
    }
    
  }

  protected void Page_Load(object sender, EventArgs e)
  {
    //Clear the message label.
    MessageLabel.Text = "";
  }  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>ListView InsertItem Example</title>
    <style type="text/css">
      body  { font: 10pt Trebuchet MS, Arial, Tahoma; }
      th { background: #8FBC8F; }
      .item td { border: 1px solid #8FBC8F; }
      .insertItem td  { background: #D3D3D3; }
    </style>
  </head>
  <body>
    <form id="form1" runat="server">
       
      <h3>ListView InsertItem Example</h3>
      
      <asp:ListView ID="CountriesListView" 
        DataSourceID="CountryDataSource"
        DataKeyNames="CountryRegionCode"
        InsertItemPosition="LastItem"
        runat="server" 
        oniteminserting="CountriesListView_ItemInserting">
        <LayoutTemplate>
          <table cellpadding="4" width="500" runat="server" id="tblCountries">
            <tr runat="server">
              <th runat="server">Code</th>
              <th runat="server">Name</th>
            </tr>
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager ID="CountriesPager" runat="server" PageSize="20">
            <Fields>
              <asp:NumericPagerField ButtonCount="10" />
            </Fields>
          </asp:DataPager>          
        </LayoutTemplate>
        <ItemTemplate>
          <tr class="item" runat="server">
            <td>
              <asp:Label ID="CountryCodeLabel" runat="server" 
                Text='<%# Eval("CountryRegionCode")%>' />
            </td>          
            <td>
              <asp:Label ID="NameLabel" runat="server" 
                Text='<%# Eval("Name")%>' />
            </td>
          </tr>
        </ItemTemplate>
        <InsertItemTemplate>
          <tr class="insertItem">
            <td align="right">Code:</td>
            <td align="left">
              <asp:TextBox ID="CountryCodeTextBox" runat="server" 
                Text='<%# Bind("CountryRegionCode")%>' 
                MaxLength="3" />
            </td>
          </tr>
          <tr class="insertItem">
            <td align="right">Name:</td>
            <td align="left">
              <asp:TextBox ID="NameTextBox" runat="server" 
                Text='<%# Bind("Name")%>' 
                MaxLength="50" />
            </td>
          </tr>
          <tr class="insertItem" runat="server">
            <td colspan="2" align="center">
              <asp:Button ID="InsertButton" runat="server" 
                CommandName="Insert" Text="Insert" />
              <asp:Button ID="CancelButton" runat="server" 
                CommandName="Cancel" Text="Clear" />
            </td>
          </tr>
        </InsertItemTemplate>
      </asp:ListView>
      <br /><br />
                
      <asp:Label ID="MessageLabel"
        ForeColor="Red"
        runat="server" />

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->      
      <asp:SqlDataSource ID="CountryDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT [CountryRegionCode], [Name]
          FROM [Person].[CountryRegion]"
        InsertCommand="INSERT INTO Person.CountryRegion(CountryRegionCode, Name) 
          VALUES (@CountryRegionCode, @Name)">
      </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">

  Protected Sub CountriesListView_ItemInserting(ByVal sender As Object, _
                                                ByVal e As ListViewInsertEventArgs)
    
    ' Get the controls that are contained in the insert item.
    Dim countryCodeTextBox As TextBox = _
      CType(CountriesListView.InsertItem.FindControl("CountryCodeTextBox"), TextBox)
    Dim nameTextBox As TextBox = _
      CType(CountriesListView.InsertItem.FindControl("NameTextBox"), TextBox)
    
    'Check if the controls are empty.
    If countryCodeTextBox.Text.Trim().Length = 0 _
    OrElse nameTextBox.Text.Trim().Length = 0 Then
      MessageLabel.Text = "The system could not insert the item. All fields are required."
      e.Cancel = True
      Return
    End If

  End Sub
 
  Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) 
    'Clear the message label.
    MessageLabel.Text = ""
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>ListView InsertItem Example</title>
    <style type="text/css">
      body  { font: 10pt Trebuchet MS, Arial, Tahoma; }
      th { background: #8FBC8F; }
      .item td { border: 1px solid #8FBC8F; }
      .insertItem td  { background: #D3D3D3; }
    </style>
  </head>
  <body>
    <form id="form1" runat="server">
       
      <h3>ListView InsertItem Example</h3>
      
      <asp:ListView ID="CountriesListView" 
        DataSourceID="CountryDataSource"
        DataKeyNames="CountryRegionCode"
        InsertItemPosition="LastItem"
        runat="server" 
        oniteminserting="CountriesListView_ItemInserting">
        <LayoutTemplate>
          <table cellpadding="4" width="500" runat="server" id="tblCountries">
            <tr runat="server">
              <th runat="server">Code</th>
              <th runat="server">Name</th>
            </tr>
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager ID="CountriesPager" runat="server" PageSize="20">
            <Fields>
              <asp:NumericPagerField ButtonCount="10" />
            </Fields>
          </asp:DataPager>          
        </LayoutTemplate>
        <ItemTemplate>
          <tr class="item" runat="server">
            <td>
              <asp:Label ID="CountryCodeLabel" runat="server" 
                Text='<%# Eval("CountryRegionCode")%>' />
            </td>          
            <td>
              <asp:Label ID="NameLabel" runat="server" 
                Text='<%# Eval("Name")%>' />
            </td>
          </tr>
        </ItemTemplate>
        <InsertItemTemplate>
          <tr class="insertItem">
            <td align="right">Code:</td>
            <td align="left">
              <asp:TextBox ID="CountryCodeTextBox" runat="server" 
                Text='<%# Bind("CountryRegionCode")%>' 
                MaxLength="3" />
            </td>
          </tr>
          <tr class="insertItem">
            <td align="right">Name:</td>
            <td align="left">
              <asp:TextBox ID="NameTextBox" runat="server" 
                Text='<%# Bind("Name")%>' 
                MaxLength="50" />
            </td>
          </tr>
          <tr class="insertItem" runat="server">
            <td colspan="2" align="center">
              <asp:Button ID="InsertButton" runat="server" 
                CommandName="Insert" Text="Insert" />
              <asp:Button ID="CancelButton" runat="server" 
                CommandName="Cancel" Text="Clear" />
            </td>
          </tr>
        </InsertItemTemplate>
      </asp:ListView>
      <br /><br />
                
      <asp:Label ID="MessageLabel"
        ForeColor="Red"
        runat="server" />

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->      
      <asp:SqlDataSource ID="CountryDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT [CountryRegionCode], [Name]
          FROM [Person].[CountryRegion]"
        InsertCommand="INSERT INTO Person.CountryRegion(CountryRegionCode, Name) 
          VALUES (@CountryRegionCode, @Name)">
      </asp:SqlDataSource>
      
    </form>
  </body>
</html>

Keterangan

InsertItem Gunakan properti untuk mengakses item ListView sisipkan kontrol. Item sisipkan adalah ListViewItem objek yang ItemType sama dengan ListViewItemType.InsertItem. Konten item sisipan ditentukan oleh InsertItemTemplate properti .

Berlaku untuk

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