ButtonFieldBase.ShowHeader Properti
Definisi
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 atau mengatur nilai yang menunjukkan apakah bagian header ditampilkan dalam ButtonFieldBase objek.
public:
virtual property bool ShowHeader { bool get(); void set(bool value); };public override bool ShowHeader { get; set; }member this.ShowHeader : bool with get, setPublic Overrides Property ShowHeader As BooleanNilai Properti
true untuk memperlihatkan bagian header; jika tidak, false. Defaultnya adalah false.
Contoh
Contoh kode berikut menunjukkan cara menggunakan ShowHeader properti untuk menampilkan bagian ButtonField header objek dalam DetailsView kontrol.
<%@ 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 ProductsDetailsView_ItemCommand(Object sender, DetailsViewCommandEventArgs e)
{
if(e.CommandName == "Add")
{
// Retrieve the current author's last name. In this example, the
// last name is displayed in the second cell (index 1) of the
// second row (index 1).
string lastName = ProductsDetailsView.Rows[1].Cells[1].Text;
// Create a ListItem object to represent the author.
ListItem item = new ListItem(lastName);
// Add the ListItem to the list box control if it does not
// already appear in the ListBox.
if(!ProductsListBox.Items.Contains(item))
{
ProductsListBox.Items.Add(item);
}
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ButtonFieldBase ShowHeader Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>ButtonFieldBase ShowHeader Example</h3>
Click the Add button to add the product to the list box.
<table cellpadding="30">
<tr>
<td>
<!-- Set the ShowHeader property of the ButtonField -->
<!-- declaratively to display the header section in -->
<!-- that row. -->
<asp:detailsview id="ProductsDetailsView"
datasourceid="ProductsSqlDataSource"
autogeneraterows="false"
allowpaging="true"
gridlines="both"
onitemcommand="ProductsDetailsView_ItemCommand"
runat="server">
<Fields>
<asp:buttonfield buttontype="Link"
commandname="Add"
headertext="Add Product"
showheader="true"
text="Add"/>
<asp:boundfield datafield="ProductID"
headertext="ID"/>
<asp:boundfield datafield="ProductName"
headertext="Product"/>
</Fields>
</asp:detailsview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="ProductsSqlDataSource"
selectcommand="SELECT ProductName, ProductID FROM Products"
connectionstring="<%$ ConnectionStrings:NorthwindConnection %>"
runat="server">
</asp:sqldatasource>
</td>
<td>
Products List:<br/>
<asp:listbox id="ProductsListBox"
runat="server"/>
</td>
</tr>
</table>
</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 ProductsDetailsView_ItemCommand(ByVal sender As Object, ByVal e As DetailsViewCommandEventArgs)
If e.CommandName = "Add" Then
' Retrieve the current author's last name. In this example, the
' last name is displayed in the second cell (index 1) of the
' second row (index 1).
Dim lastName As String = ProductsDetailsView.Rows(1).Cells(1).Text
' Create a ListItem object to represent the author.
Dim item As ListItem = New ListItem(lastName)
' Add the ListItem to the list box control if it does not
' already appear in the ListBox.
If Not ProductsListBox.Items.Contains(item) Then
ProductsListBox.Items.Add(item)
End If
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ButtonFieldBase ShowHeader Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>ButtonFieldBase ShowHeader Example</h3>
Click the Add button to add the product to the list box.
<table cellpadding="30">
<tr>
<td>
<!-- Set the ShowHeader property of the ButtonField -->
<!-- declaratively to display the header section in -->
<!-- that row. -->
<asp:detailsview id="ProductsDetailsView"
datasourceid="ProductsSqlDataSource"
autogeneraterows="false"
allowpaging="true"
gridlines="both"
onitemcommand="ProductsDetailsView_ItemCommand"
runat="server">
<Fields>
<asp:buttonfield buttontype="Link"
commandname="Add"
headertext="Add Product"
showheader="true"
text="Add"/>
<asp:boundfield datafield="ProductID"
headertext="ID"/>
<asp:boundfield datafield="ProductName"
headertext="Product"/>
</Fields>
</asp:detailsview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="ProductsSqlDataSource"
selectcommand="SELECT ProductName, ProductID FROM Products"
connectionstring="<%$ ConnectionStrings:NorthwindConnection %>"
runat="server">
</asp:sqldatasource>
</td>
<td>
Products List:<br/>
<asp:listbox id="ProductsListBox"
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
Keterangan
ShowHeader Gunakan properti untuk memperlihatkan atau menyembunyikan bagian ButtonFieldBase header objek. Untuk memperlihatkan bagian header, atur properti ke ShowHeadertrue.
Nota
Beberapa kontrol terikat data (seperti GridView kontrol) hanya dapat menampilkan atau menyembunyikan seluruh bagian header kontrol. Kontrol terikat data ini tidak mendukung ShowHeader properti untuk bidang tombol individual. Untuk memperlihatkan atau menyembunyikan seluruh bagian header kontrol terikat data (jika tersedia), gunakan ShowHeader properti untuk kontrol.
Nilai properti ini disimpan dalam status tampilan.
