DetailsViewCommandEventArgs Kelas
Definisi
Penting
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Menyediakan data untuk peristiwa tersebut ItemCommand .
public ref class DetailsViewCommandEventArgs : System::Web::UI::WebControls::CommandEventArgspublic class DetailsViewCommandEventArgs : System.Web.UI.WebControls.CommandEventArgstype DetailsViewCommandEventArgs = class
inherit CommandEventArgsPublic Class DetailsViewCommandEventArgs
Inherits CommandEventArgs- Warisan
Contoh
Contoh kode berikut menunjukkan cara menggunakan objek yang DetailsViewCommandEventArgs diteruskan ke penanganan aktivitas untuk peristiwa guna ItemCommand menentukan nama perintah tombol yang diklik oleh pengguna. Contoh ini menggunakan model pengkodian file tunggal.
<%@ 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 ItemDetailsView_ItemCommand(Object sender,
DetailsViewCommandEventArgs e)
{
// Use the CommandName property to determine which button
// was clicked.
if (e.CommandName == "Add")
{
// Add the 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 = ItemDetailsView.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 control, if the
// item does not already exist.
if (!CustomerListBox.Items.Contains(item))
{
CustomerListBox.Items.Add(item);
}
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>DetailsViewCommandEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DetailsViewCommandEventArgs Example</h3>
<asp:detailsview id="ItemDetailsView"
datasourceid="DetailsViewSource"
allowpaging="true"
autogeneraterows="false"
onitemcommand="ItemDetailsView_ItemCommand"
runat="server">
<fields>
<asp:boundfield datafield="CustomerID"
headertext="Customer ID"/>
<asp:boundfield datafield="CompanyName"
headertext="Company Name"/>
<asp:boundfield datafield="Address"
headertext="Address"/>
<asp:boundfield datafield="City"
headertext="City"/>
<asp:boundfield datafield="PostalCode"
headertext="ZIP Code"/>
<asp:boundfield datafield="Country"
headertext="Country"/>
<asp:buttonfield buttontype="Link"
causesvalidation="false"
text="Add to List"
commandname="Add"/>
</fields>
</asp:detailsview>
<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" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub ItemDetailsView_ItemCommand(ByVal sender As Object, _
ByVal e As DetailsViewCommandEventArgs) _
Handles ItemDetailsView.ItemCommand
' Use the CommandName property to determine which button
' was clicked.
If e.CommandName = "Add" Then
' Add the 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 = ItemDetailsView.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 control, if the
' item does not 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>DetailsViewCommandEventArgs Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DetailsViewCommandEventArgs Example</h3>
<asp:detailsview id="ItemDetailsView"
datasourceid="DetailsViewSource"
allowpaging="true"
autogeneraterows="false"
runat="server">
<fields>
<asp:boundfield datafield="CustomerID"
headertext="Customer ID"/>
<asp:boundfield datafield="CompanyName"
headertext="Company Name"/>
<asp:boundfield datafield="Address"
headertext="Address"/>
<asp:boundfield datafield="City"
headertext="City"/>
<asp:boundfield datafield="PostalCode"
headertext="ZIP Code"/>
<asp:boundfield datafield="Country"
headertext="Country"/>
<asp:buttonfield buttontype="Link"
causesvalidation="false"
text="Add to List"
commandname="Add"/>
</fields>
</asp:detailsview>
<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>
Contoh kode berikut menunjukkan versi model pengodean kode-balik dari contoh sebelumnya. Agar contoh ini berfungsi, Anda harus menyalin kode di bawah ini ke dalam file code-behind terkait.
<%@ 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>DetailsViewCommandEventArgs Example</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>DetailsViewCommandEventArgs Example</h3>
<asp:detailsview id="ItemDetailsView"
datasourceid="DetailsViewSource"
allowpaging="true"
autogeneraterows="false"
onitemcommand="ItemDetailsView_ItemCommand"
runat="server">
<fields>
<asp:boundfield datafield="CustomerID"
headertext="Customer ID"/>
<asp:boundfield datafield="CompanyName"
headertext="Company Name"/>
<asp:boundfield datafield="Address"
headertext="Address"/>
<asp:boundfield datafield="City"
headertext="City"/>
<asp:boundfield datafield="PostalCode"
headertext="ZIP Code"/>
<asp:boundfield datafield="Country"
headertext="Country"/>
<asp:buttonfield buttontype="Link"
causesvalidation="false"
text="Add to List"
commandname="Add"/>
</fields>
</asp:detailsview>
<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>DetailsViewCommandEventArgs Example</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>DetailsViewCommandEventArgs Example</h3>
<asp:detailsview id="ItemDetailsView"
datasourceid="DetailsViewSource"
allowpaging="true"
autogeneraterows="false"
onitemcommand="ItemDetailsView_ItemCommand"
runat="server">
<fields>
<asp:boundfield datafield="CustomerID"
headertext="Customer ID"/>
<asp:boundfield datafield="CompanyName"
headertext="Company Name"/>
<asp:boundfield datafield="Address"
headertext="Address"/>
<asp:boundfield datafield="City"
headertext="City"/>
<asp:boundfield datafield="PostalCode"
headertext="ZIP Code"/>
<asp:boundfield datafield="Country"
headertext="Country"/>
<asp:buttonfield buttontype="Link"
causesvalidation="false"
text="Add to List"
commandname="Add"/>
</fields>
</asp:detailsview>
<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>
Contoh kode berikut menunjukkan file code-behind untuk contoh sebelumnya.
using System;
using System.Data;
using System.Configuration;
using System.Collections;
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
{
public void ItemDetailsView_ItemCommand(Object sender, DetailsViewCommandEventArgs e)
{
// Use the CommandName property to determine which button
// was clicked.
if (e.CommandName == "Add")
{
// Add the 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 = ItemDetailsView.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 control, if the
// item does not already exist.
if (!CustomerListBox.Items.Contains(item))
{
CustomerListBox.Items.Add(item);
}
}
}
}
Partial Class DefaultVB
Inherits System.Web.UI.Page
Public Sub ItemDetailsView_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 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 = ItemDetailsView.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 ListItem = New ListItem(name)
' Add the ListItem object to the ListBox control, if the
' item does not already exist.
If Not CustomerListBox.Items.Contains(item) Then
CustomerListBox.Items.Add(item)
End If
End If
End Sub
End Class
Keterangan
DetailsView Kontrol menaikkan ItemCommand peristiwa saat tombol dalam ButtonFieldbidang baris , CommandField, atau TemplateField diklik. Ini memungkinkan Anda untuk menyediakan penanganan aktivitas yang melakukan rutinitas kustom setiap kali peristiwa ini terjadi.
Catatan
Kontrol juga DetailsView memunculkan peristiwa khusus lainnya ketika tombol tertentu diklik (tombol dengan CommandName properti diatur ke "Hapus", "Sisipkan", "Halaman", atau "Perbarui"). Saat menggunakan salah satu tombol ini, Anda harus mempertimbangkan untuk menggunakan salah satu peristiwa khusus yang disediakan oleh kontrol (seperti ItemDeleted atau ItemDeleting).
Objek DetailsViewCommandEventArgs diteruskan ke penanganan aktivitas. Jika tombol yang menaikkan peristiwa memiliki nama perintah atau nilai argumen perintah, Anda dapat menggunakan DetailsViewCommandEventArgs objek untuk menentukan nilai-nilai ini. Untuk menentukan nama perintah dan argumen perintah tombol yang diklik, gunakan CommandName properti dan CommandArgument , masing-masing. Anda juga dapat mengakses DetailsView kontrol yang menaikkan peristiwa dengan menggunakan CommandSource properti .
Untuk daftar nilai properti awal untuk instans DetailsViewCommandEventArgs kelas , lihat DetailsViewCommandEventArgs konstruktor .
Konstruktor
| DetailsViewCommandEventArgs(Object, CommandEventArgs) |
Menginisialisasi instans baru kelas DetailsViewCommandEventArgs. |
Properti
| CommandArgument |
Mendapatkan argumen untuk perintah . (Diperoleh dari CommandEventArgs) |
| CommandName |
Mendapatkan nama perintah. (Diperoleh dari CommandEventArgs) |
| CommandSource |
Mendapatkan sumber perintah. |
| Handled |
Mendapatkan atau menetapkan nilai yang menunjukkan apakah kontrol telah menangani peristiwa. |
Metode
| Equals(Object) |
Menentukan apakah objek yang ditentukan sama dengan objek saat ini. (Diperoleh dari Object) |
| GetHashCode() |
Berfungsi sebagai fungsi hash default. (Diperoleh dari Object) |
| GetType() |
Mendapatkan dari instans Type saat ini. (Diperoleh dari Object) |
| MemberwiseClone() |
Membuat salinan dangkal dari saat ini Object. (Diperoleh dari Object) |
| ToString() |
Mengembalikan string yang mewakili objek saat ini. (Diperoleh dari Object) |
Berlaku untuk
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