DetailsViewCommandEventHandler 대리자

  • 참조

정의

네임스페이스:
System.Web.UI.WebControls
어셈블리:
System.Web.dll

ItemCommand 컨트롤의 DetailsView 이벤트를 처리하는 메서드를 나타냅니다.

public delegate void DetailsViewCommandEventHandler(System::Object ^ sender, DetailsViewCommandEventArgs ^ e);
public delegate void DetailsViewCommandEventHandler(object sender, DetailsViewCommandEventArgs e);
type DetailsViewCommandEventHandler = delegate of obj * DetailsViewCommandEventArgs -> unit
Public Delegate Sub DetailsViewCommandEventHandler(sender As Object, e As DetailsViewCommandEventArgs)

매개 변수

sender
Object

이벤트 소스입니다.

e
DetailsViewCommandEventArgs

이벤트 데이터를 포함하는 DetailsViewCommandEventArgs입니다.

예제

다음 코드 예제에서는 프로그래밍 방식으로 추가 하는 방법에 설명를 DetailsViewCommandEventHandler 위임할 합니다 ItemCommand 의 이벤트를 DetailsView 컨트롤. 이 예제에서는 단일 파일 코딩 모델을 사용합니다.


<%@ 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(Object sender, EventArgs e)
  {

    // Create a new DetailsView object.
    DetailsView customerDetailsView = new DetailsView();

    // Set the DetailsView object's properties.
    customerDetailsView.ID = "CustomerDetailsView";
    customerDetailsView.DataSourceID = "DetailsViewSource";
    customerDetailsView.AutoGenerateRows = true;
    customerDetailsView.AllowPaging = true;
    customerDetailsView.DataKeyNames = new String[1] { "CustomerID" };

    // Add a button field to the DetailsView control.
    ButtonField field = new ButtonField();
    field.ButtonType = ButtonType.Link;
    field.CausesValidation = false;
    field.Text = "Add to List";
    field.CommandName="Add";

    customerDetailsView.Fields.Add(field);

    // Programmatically register the event-handling method
    // for the ItemDeleting event of a DetailsView control.
    customerDetailsView.ItemCommand 
      += new DetailsViewCommandEventHandler( 
      this.CustomerDetailsView_ItemCommand);

    // Add the DetailsView object to the Controls collection
    // of the PlaceHolder control.
    DetailsViewPlaceHolder.Controls.Add(customerDetailsView);

  }
  
  void CustomerDetailsView_ItemCommand(Object sender, 
    DetailsViewCommandEventArgs e)
  {

    // Use the CommandName property to determine which button
    // was clicked. 
    if (e.CommandName == "Add")
    {
      // Get the DetailsView control that raised the event.
      DetailsView customerDetailsView = (DetailsView)e.CommandSource;

      // Add the current customer to the customer list. 

      // Get the row that contains the company name. In this
      // example, the company name is in the second row (index 1)  
      // of the DetailsView control.
      DetailsViewRow row = customerDetailsView.Rows[1];

      // Get the company's name from the appropriate cell.
      // In this example, the company name is in the second cell  
      // (index 1) of the row.
      String name = row.Cells[1].Text;

      // Create a ListItem object with the company name.
      ListItem item = new ListItem(name);

      // Add the ListItem object to the ListBox, if the 
      // item doesn't already exist.
      if (!CustomerListBox.Items.Contains(item))
      {
        CustomerListBox.Items.Add(item);
      }

    }

  }
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsViewCommandEventHandler Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>DetailsViewCommandEventHandler Example</h3>
      
      <!-- Use a PlaceHolder control as the container for the -->
      <!-- dynamically generated DetailsView control.         -->       
      <asp:placeholder id="DetailsViewPlaceHolder"
        runat="server"/>
      
      <br/><br/>
      
      Selected Customers:<br/>
      <asp:listbox id="CustomerListBox"
        runat="server"/>
      
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the web.config file.                            -->
      <asp:sqldatasource id="DetailsViewSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], 
          [City], [PostalCode], [Country] From [Customers]"
        connectionstring=
            "<%$ ConnectionStrings:NorthWindConnectionString%>" 

        runat="server"/>  
  
    </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(ByVal sender As Object, ByVal e As EventArgs)

    ' Create a new DetailsView object.
    Dim customerDetailsView As New DetailsView()

    ' Set the DetailsView object's properties.
    customerDetailsView.ID = "CustomerDetailsView"
    customerDetailsView.DataSourceID = "DetailsViewSource"
    customerDetailsView.AutoGenerateRows = True
    customerDetailsView.AllowPaging = True
    
    Dim keyArray() As String = {"CustomerID"}
    customerDetailsView.DataKeyNames = keyArray
    
    ' Add a button field to the DetailsView control.
    Dim field As New ButtonField()
    field.ButtonType = ButtonType.Link
    field.CausesValidation = False
    field.Text = "Add to List"
    field.CommandName = "Add"

    customerDetailsView.Fields.Add(field)

    ' Programmatically register the event-handling method
    ' for the ItemDeleting event of a DetailsView control.
    AddHandler customerDetailsView.ItemCommand, _
      AddressOf CustomerDetailsView_ItemCommand

    ' Add the DetailsView object to the Controls collection
    ' of the PlaceHolder control.
    DetailsViewPlaceHolder.Controls.Add(customerDetailsView)

  End Sub
  
  Sub CustomerDetailsView_ItemCommand(ByVal sender As Object, _
    ByVal e As DetailsViewCommandEventArgs)

    ' Use the CommandName property to determine which button
    ' was clicked. 
    If e.CommandName = "Add" Then

      ' Get the DetailsView control that raised the event.
      Dim customerDetailsView As DetailsView = _
        CType(e.CommandSource, DetailsView)

      ' Add the current customer to the customer list. 

      ' Get the row that contains the company name. In this
      ' example, the company name is in the second row (index 1)  
      ' of the DetailsView control.
      Dim row As DetailsViewRow = customerDetailsView.Rows(1)

      ' Get the company's name from the appropriate cell.
      ' In this example, the company name is in the second cell  
      ' (index 1) of the row.
      Dim name As String = row.Cells(1).Text

      ' Create a ListItem object with the company name.
      Dim item As New ListItem(name)

      ' Add the ListItem object to the ListBox, if the 
      ' item doesn't already exist.
      If Not CustomerListBox.Items.Contains(item) Then
      
        CustomerListBox.Items.Add(item)
        
      End If

    End If

  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsViewCommandEventHandler Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>DetailsViewCommandEventHandler Example</h3>
      
      <!-- Use a PlaceHolder control as the container for the -->
      <!-- dynamically generated DetailsView control.         -->       
      <asp:placeholder id="DetailsViewPlaceHolder"
        runat="server"/>
      
      <br/><br/>
      
      Selected Customers:<br/>
      <asp:listbox id="CustomerListBox"
        runat="server"/>
      
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the web.config file.                            -->
      <asp:sqldatasource id="DetailsViewSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], 
          [City], [PostalCode], [Country] From [Customers]"
        connectionstring=
            "<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>  
  
    </form>
  </body>
</html>

다음 코드 예제에서는 이전 예의 코드 숨김 코딩 모델 버전을 보여 줍니다. 이 예제가 작동 하려면 관련 된 코드 숨김 파일에 아래 코드를 복사 해야 합니다.

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsViewCommandEventHandler Example</title>
</head>
<body>
    <form id="Form1" runat="server">
    
      <h3>DetailsViewCommandEventHandler Example</h3>
      
      <!-- Use a PlaceHolder control as the container for the -->
      <!-- dynamically generated DetailsView control.         -->       
      <asp:placeholder id="DetailsViewPlaceHolder"
        runat="server"/>
      
      <br/><br/>
      
      Selected Customers:<br/>
      <asp:listbox id="CustomerListBox"
        runat="server"/>
      
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the web.config file.                            -->
      <asp:sqldatasource id="DetailsViewSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], 
          [City], [PostalCode], [Country] From [Customers]"
        connectionstring="
          <%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>  
  
    </form>
  </body>
</html>

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="DefaultVB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsViewCommandEventHandler Example</title>
</head>
<body>
    <form id="Form1" runat="server">
    
      <h3>DetailsViewCommandEventHandler Example</h3>
      
      <!-- Use a PlaceHolder control as the container for the -->
      <!-- dynamically generated DetailsView control.         -->       
      <asp:placeholder id="DetailsViewPlaceHolder"
        runat="server"/>
      
      <br/><br/>
      
      Selected Customers:<br/>
      <asp:listbox id="CustomerListBox"
        runat="server"/>
      
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the web.config file.                            -->
      <asp:sqldatasource id="DetailsViewSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>  
  
    </form>
  </body>
</html>

다음 코드 예제에서는 이전 예제에 대 한 코드 숨김 파일을 보여 줍니다.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        // Create a new DetailsView object.
        DetailsView customerDetailsView = new DetailsView();

        // Set the DetailsView object's properties.
        customerDetailsView.ID = "CustomerDetailsView";
        customerDetailsView.DataSourceID = "DetailsViewSource";
        customerDetailsView.AutoGenerateRows = true;
        customerDetailsView.AllowPaging = true;
        customerDetailsView.DataKeyNames = new String[1] { "CustomerID" };

        // Add a button field to the DetailsView control.
        ButtonField field = new ButtonField();
        field.ButtonType = ButtonType.Link;
        field.CausesValidation = false;
        field.Text = "Add to List";
        field.CommandName = "Add";

        customerDetailsView.Fields.Add(field);

        // Programmatically register the event-handling method
        // for the ItemDeleting event of a DetailsView control.
        customerDetailsView.ItemCommand += new DetailsViewCommandEventHandler(this.CustomerDetailsView_ItemCommand);

        // Add the DetailsView object to the Controls collection
        // of the PlaceHolder control.
        DetailsViewPlaceHolder.Controls.Add(customerDetailsView);
    }

    void CustomerDetailsView_ItemCommand(Object sender, DetailsViewCommandEventArgs e)
    {

        // Use the CommandName property to determine which button
        // was clicked. 
        if (e.CommandName == "Add")
        {
            // Get the DetailsView control that raised the event.
            DetailsView customerDetailsView = (DetailsView)sender;

            // Add the current customer to the customer list. 

            // Get the row that contains the company name. In this
            // example, the company name is in the second row (index 1)  
            // of the DetailsView control.
            DetailsViewRow row = customerDetailsView.Rows[1];

            // Get the company's name from the appropriate cell.
            // In this example, the company name is in the second cell  
            // (index 1) of the row.
            String name = row.Cells[1].Text;

            // Create a ListItem object with the company name.
            ListItem item = new ListItem(name);

            // Add the ListItem object to the ListBox, if the 
            // item doesn't already exist.
            if (!CustomerListBox.Items.Contains(item))
            {
                CustomerListBox.Items.Add(item);
            }
        }
    }
}

Partial Class DefaultVB
    Inherits System.Web.UI.Page

    Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

        ' Create a new DetailsView object.
        Dim customerDetailsView As New DetailsView()

        ' Set the DetailsView object's properties.
        customerDetailsView.ID = "CustomerDetailsView"
        customerDetailsView.DataSourceID = "DetailsViewSource"
        customerDetailsView.AutoGenerateRows = True
        customerDetailsView.AllowPaging = True

        Dim keyArray() As String = {"CustomerID"}
        customerDetailsView.DataKeyNames = keyArray

        ' Add a button field to the DetailsView control.
        Dim field As New ButtonField()
        field.ButtonType = ButtonType.Link
        field.CausesValidation = False
        field.Text = "Add to List"
        field.CommandName = "Add"

        customerDetailsView.Fields.Add(field)

        ' Programmatically register the event-handling method
        ' for the ItemDeleting event of a DetailsView control.
        AddHandler customerDetailsView.ItemCommand, AddressOf CustomerDetailsView_ItemCommand

        ' Add the DetailsView object to the Controls collection
        ' of the PlaceHolder control.
        DetailsViewPlaceHolder.Controls.Add(customerDetailsView)

    End Sub

    Sub CustomerDetailsView_ItemCommand(ByVal sender As Object, ByVal e As DetailsViewCommandEventArgs)

        ' Use the CommandName property to determine which button
        ' was clicked. 
        If e.CommandName = "Add" Then

            ' Get the DetailsView control that raised the event.
            Dim customerDetailsView As DetailsView = CType(sender, DetailsView)

            ' Add the current customer to the customer list. 

            ' Get the row that contains the company name. In this
            ' example, the company name is in the second row (index 1)  
            ' of the DetailsView control.
            Dim row As DetailsViewRow = customerDetailsView.Rows(1)

            ' Get the company's name from the appropriate cell.
            ' In this example, the company name is in the second cell  
            ' (index 1) of the row.
            Dim name As String = row.Cells(1).Text

            ' Create a ListItem object with the company name.
            Dim item As New ListItem(name)

            ' Add the ListItem object to the ListBox, if the 
            ' item doesn't already exist.
            If Not CustomerListBox.Items.Contains(item) Then

                CustomerListBox.Items.Add(item)

            End If

        End If

    End Sub

End Class

다음 코드 예제에는 선언적으로 추가 하는 방법을 보여 줍니다.를 DetailsViewCommandEventHandler 위임할를 ItemCommand 의 이벤트를 DetailsView 컨트롤입니다.


<%@ 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 CustomerDetailView_ItemCommand(Object sender, DetailsViewCommandEventArgs e)
    {

        // Use the CommandName property to determine which button
        // was clicked. 
        if (e.CommandName == "Add")
        {

            // Add the current store to the contact list. 

            // Get the row that contains the store name. In this
            // example, the store name is in the second row (index 1)  
            // of the DetailsView control.
            DetailsViewRow row = CustomerDetailView.Rows[1];

            // Get the store's name from the appropriate cell.
            // In this example, the store name is in the second cell  
            // (index 1) of the row.
            String name = row.Cells[1].Text;

            // Create a ListItem object with the store's name.
            ListItem item = new ListItem(name);

            // Add the ListItem object to the ListBox, if the 
            // item doesn't already exist.
            if (!ContactListBox.Items.Contains(item))
            {
                ContactListBox.Items.Add(item);
            }

        }

    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>
            DetailsView ItemCommand Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        <h3>
            DetailsView ItemCommand Example</h3>
        <asp:DetailsView ID="CustomerDetailView" 
            DataSourceID="DetailsViewSource"
            AutoGenerateRows="false" 
            DataKeyNames="CustomerID" 
            AllowPaging="true" 
            OnItemCommand="CustomerDetailView_ItemCommand"
            runat="server">
            
            <FieldHeaderStyle BackColor="Navy" ForeColor="White" />
            
            <Fields>
                <asp:BoundField DataField="CustomerID" HeaderText="Store ID" />
                <asp:BoundField DataField="CompanyName" HeaderText="Store Name" />
                <asp:BoundField DataField="City" HeaderText="City" />
                <asp:ButtonField CommandName="Add" Text="Add Contact" />
            </Fields>
        </asp:DetailsView>
        
        <hr />
        
        Contacts:<br />
        <asp:ListBox ID="ContactListBox" runat="server" />
        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:SqlDataSource ID="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
            InsertCommand="INSERT INTO [Customers]([CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country]) VALUES (@CustomerID, @CompanyName, @Address, @City, @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </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 CustomerDetailView_ItemCommand(ByVal sender As Object, ByVal e As DetailsViewCommandEventArgs)
    
        ' Use the CommandName property to determine which button
        ' was clicked. 
        If e.CommandName = "Add" Then

            ' Add the current store to the contact list. 
     
            ' Get the row that contains the store name. In this
            ' example, the store name is in the second row (index 1)  
            ' of the DetailsView control.
            Dim row As DetailsViewRow = CustomerDetailView.Rows(1)
      
            ' Get the store's name from the appropriate cell.
            ' In this example, the store name is in the second cell  
            ' (index 1) of the row.
            Dim name As String = row.Cells(1).Text

            ' Create a ListItem object with the store's name.
            Dim item As New ListItem(name)

            ' Add the ListItem object to the ListBox, if the 
            ' item doesn't already exist.
            If Not ContactListBox.Items.Contains(item) Then
      
                ContactListBox.Items.Add(item)
      
            End If
        
        End If
    
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>
            DetailsView ItemCommand Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        <h3>
            DetailsView ItemCommand Example</h3>
        <asp:DetailsView ID="CustomerDetailView" 
            DataSourceID="DetailsViewSource"
            AutoGenerateRows="false" 
            DataKeyNames="CustomerID" 
            AllowPaging="true" 
            OnItemCommand="CustomerDetailView_ItemCommand"
            runat="server">
            
            <FieldHeaderStyle BackColor="Navy" ForeColor="White" />
            
            <Fields>
                <asp:BoundField DataField="CustomerID" HeaderText="Store ID" />
                <asp:BoundField DataField="CompanyName" HeaderText="Store Name" />
                <asp:BoundField DataField="City" HeaderText="City" />
                <asp:ButtonField CommandName="Add" Text="Add Contact" />
            </Fields>
        </asp:DetailsView>
        
        <hr />
        
        Contacts:<br />
        <asp:ListBox ID="ContactListBox" runat="server" />
        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:SqlDataSource ID="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
            InsertCommand="INSERT INTO [Customers]([CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country]) VALUES (@CustomerID, @CompanyName, @Address, @City, @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
</body>
</html>

설명

DetailsView 를 발생 시킵니다 합니다 ItemCommand 이벤트 내에 있는 단추를 ButtonField, CommandField, 또는 TemplateField 행 필드를 클릭 합니다. 이 옵션을 사용 하면이 이벤트가 발생할 때마다 사용자 지정 루틴을 수행 하는 이벤트 처리기를 제공할 수 있습니다.

참고

합니다 DetailsView 제어는 또한 특정 단추를 클릭할 때 다른 특수화 된 이벤트를 발생 시킵니다 (단추는 CommandName 속성이 "Delete", "Insert", "페이지" 또는 "Update"로 설정). 컨트롤에서 제공 하는 특수 한 이벤트 중 하나를 사용 하 여 고려해 야 이러한 단추 중 하나를 사용 하는 경우 (같은 ItemDeleted 또는 ItemDeleting).

DetailsViewCommandEventHandler 대리자를 만들 때, 이벤트를 처리할 메서드를 식별합니다. 이벤트를 이벤트 처리기와 연결하려면 대리자의 인스턴스를 해당 이벤트에 추가합니다. 대리자를 제거하지 않는 경우 이벤트가 발생할 때마다 이벤트 처리기가 호출됩니다. 이벤트 처리기 대리자에 대 한 자세한 내용은 참조 하세요. 이벤트 처리 및 발생합니다.

확장 메서드

GetMethodInfo(Delegate)

지정된 대리자가 나타내는 메서드를 나타내는 개체를 가져옵니다.

적용 대상

추가 정보