ListView.ItemDeleted 이벤트

참조

정의

네임스페이스:: System.Web.UI.WebControls

어셈블리:: System.Web.Extensions.dll

중요

일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.

삭제 작업이 요청될 때 ListView 컨트롤에서 항목을 삭제한 후 발생합니다.

public:
 event EventHandler<System::Web::UI::WebControls::ListViewDeletedEventArgs ^> ^ ItemDeleted;

public event EventHandler<System.Web.UI.WebControls.ListViewDeletedEventArgs> ItemDeleted;

member this.ItemDeleted : EventHandler<System.Web.UI.WebControls.ListViewDeletedEventArgs>

Public Custom Event ItemDeleted As EventHandler(Of ListViewDeletedEventArgs)

이벤트 유형

EventHandler<ListViewDeletedEventArgs>

예제

다음 예제에서는 이벤트에 대 한 이벤트 처리기를 추가 하는 방법을 보여 있습니다 ItemDeleted .

<%@ 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 Page_Load()
    {
        Message.Text = String.Empty;
    }
    
    void ContactsListView_ItemDeleted(Object sender, ListViewDeletedEventArgs e)
    {
        // Determine whether an exception occurred during the delete operation.
        if (e.Exception == null)
        {
            // Ensure that a record was deleted.
            if (e.AffectedRows > 0)
            {
                Message.Text = e.AffectedRows + " item(s) deleted successfully.";
            }
            else
            {
                Message.Text = "No item was deleted.";
            }
        }
        else
        {
            // Insert the code to handle the exception here.

            // Indicate that the exception has been handled.
            e.ExceptionHandled = true;
            Message.Text = "An error occurred during the delete operation.";
        }
    }
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ListViewDeletedEventArgs Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>ListViewDeletedEventArgs Example</h3>
            
      <asp:Label ID="Message"
        ForeColor="Red"          
        runat="server"/>
      <br/>
            
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource" 
        DataKeyNames="ContactID"
        OnItemDeleted="ContactsListView_ItemDeleted"  
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" runat="server" id="tblContacts" width="640px">
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager runat="server" ID="PeopleDataPager" PageSize="12">
            <Fields>
              <asp:NextPreviousPagerField 
                ShowFirstPageButton="true" ShowLastPageButton="true"
                FirstPageText="|&lt;&lt; " LastPageText=" &gt;&gt;|"
                NextPageText=" &gt; " PreviousPageText=" &lt; " />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td valign="top">
              <asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
              <asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
            </td>
            <td>
              <asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
            </td>
            <td>
              <asp:LinkButton ID="DeleteButton" runat="server" 
                CommandName="Delete" 
                Text="Delete" 
                OnClientClick="return confirm('Are you sure?');" />
            </td>
          </tr>
        </ItemTemplate>
      </asp:ListView>

      <!-- 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="ContactsDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT [ContactID], [FirstName], [LastName], [EmailAddress] 
          FROM Person.Contact"
        DeleteCommand="DELETE FROM Person.Contact WHERE [ContactID] = @ContactID">
        <DeleteParameters>
            <asp:Parameter Name="ContactID" Type="Int32" />
        </DeleteParameters>
      </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 Page_Load()
        Message.Text = String.Empty
    End Sub
    
    Sub ContactsListView_ItemDeleted(sender As Object, e As ListViewDeletedEventArgs)

        ' Determine whether an exception occurred during the delete operation.
        If e.Exception Is Nothing Then
            ' Ensure that a record was deleted.
            If e.AffectedRows > 0 Then
                Message.Text = e.AffectedRows.ToString() & _
                    " item(s) deleted successfully."
            Else
                Message.Text = "No item was deleted."
            End If
        Else
            ' Insert the code to handle the exception here.

            ' Indicate that the exception has been handled.
            e.ExceptionHandled = true
            Message.Text = "An error occurred during the delete operation."
        End If
    End Sub
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head id="Head1" runat="server">
    <title>ListViewDeletedEventArgs Example</title>
  </head>
  <body>
    <form id="form1" runat="server">
        
      <h3>ListViewDeletedEventArgs Example</h3>
            
      <asp:Label ID="Message"
        ForeColor="Red"          
        runat="server"/>
      <br/>
            
      <asp:ListView ID="ContactsListView" 
        DataSourceID="ContactsDataSource" 
        DataKeyNames="ContactID"
        OnItemDeleted="ContactsListView_ItemDeleted"  
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" runat="server" id="tblContacts" width="640px">
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager runat="server" ID="PeopleDataPager" PageSize="12">
            <Fields>
              <asp:NextPreviousPagerField 
                ShowFirstPageButton="true" ShowLastPageButton="true"
                FirstPageText="|&lt;&lt; " LastPageText=" &gt;&gt;|"
                NextPageText=" &gt; " PreviousPageText=" &lt; " />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr runat="server">
            <td valign="top">
              <asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
              <asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
            </td>
            <td>
              <asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
            </td>
            <td>
              <asp:LinkButton ID="DeleteButton" runat="server" 
                CommandName="Delete" 
                Text="Delete" 
                OnClientClick="return confirm('Are you sure?');" />
            </td>
          </tr>
        </ItemTemplate>
      </asp:ListView>

      <!-- 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="ContactsDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT [ContactID], [FirstName], [LastName], [EmailAddress] 
          FROM Person.Contact"
        DeleteCommand="DELETE FROM Person.Contact WHERE [ContactID] = @ContactID">
        <DeleteParameters>
            <asp:Parameter Name="ContactID" Type="Int32" />
        </DeleteParameters>
      </asp:SqlDataSource>
      
    </form>
  </body>
</html>

설명

이벤트는 ItemDeleted 항목의 삭제 단추를 클릭하거나 DeleteItem 컨트롤이 항목을 삭제한 후 ListView 메서드가 호출될 때 발생합니다. (삭제 단추는 속성이 CommandName "삭제"로 설정된 단추 컨트롤입니다.) 이렇게 하면 삭제 작업의 결과 확인과 같이 이 이벤트가 발생할 때마다 사용자 지정 루틴을 수행할 수 있습니다.

ListViewDeletedEventArgs 개체가 이벤트 처리기에 전달되므로 데이터 원본에 영향을 받은 행 수를 확인할 수 있습니다. 또한 어떤 예외가 발생했는지 확인할 수 있습니다. 개체true의 속성을 로 설정하여 이벤트 처리기에서 예외가 ExceptionHandled ListViewDeletedEventArgs 처리되었는지 여부를 나타낼 수 있습니다.

이벤트를 처리 하는 방법에 대 한 자세한 내용은 참조 하세요. 이벤트 처리 및 발생합니다.

적용 대상

다음을 통해 공유

ListView.ItemDeleted 이벤트

정의

이벤트 유형

예제

설명

적용 대상

추가 정보

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