FormView.TopPagerRow 屬性
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
取得 FormViewRow 物件，表示顯示於 FormView 控制項上方的頁面巡覽列。
public:
virtual property System::Web::UI::WebControls::FormViewRow ^ TopPagerRow { System::Web::UI::WebControls::FormViewRow ^ get(); };[System.ComponentModel.Browsable(false)]
public virtual System.Web.UI.WebControls.FormViewRow TopPagerRow { get; }[<System.ComponentModel.Browsable(false)>]
member this.TopPagerRow : System.Web.UI.WebControls.FormViewRowPublic Overridable ReadOnly Property TopPagerRow As FormViewRow屬性值
FormViewRow，表示 FormView 控制項上方的頁面巡覽列。
- 屬性
範例
下列範例示範如何使用 TopPagerRow 屬性來存取控制項頂端 FormView 所顯示的呼叫器資料列。 接著會以其他內容更新呼叫器資料列。
<%@ 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 EmployeeFormView_ItemCreated(Object sender, EventArgs e)
{
// Get the pager row.
FormViewRow pagerRow = EmployeeFormView.TopPagerRow;
// Get the Label controls that display the current page information
// from the pager row.
Label pageNum = (Label)pagerRow.FindControl("PageNumberLabel");
Label totalNum = (Label)pagerRow.FindControl("TotalPagesLabel");
if ((pageNum != null) && (totalNum != null))
{
// Update the Label controls with the current page values.
int page = EmployeeFormView.PageIndex + 1;
int count = EmployeeFormView.PageCount;
pageNum.Text = page.ToString();
totalNum.Text = count.ToString();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView PagerTemplate Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView PagerTemplate Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
onitemcreated="EmployeeFormView_ItemCreated"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>
<%# Eval("Title") %>
</td>
</tr>
</table>
</itemtemplate>
<pagertemplate>
<table width="100%">
<tr>
<td>
<asp:linkbutton id="PreviousButton"
text="<"
commandname="Prev"
runat="Server"/>
<asp:linkbutton id="NextButton"
text=">"
commandName="Next"
runat="Server"/>
</td>
<td align="right">
Page <asp:label id="PageNumberLabel" runat="server"/>
of <asp:label id="TotalPagesLabel" runat="server"/>
</td>
</tr>
</table>
</pagertemplate>
<pagersettings position="Top"
mode="NextPrevious"/>
</asp:formview>
<!-- 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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
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 EmployeeFormView_ItemCreated(ByVal sender As Object, ByVal e As EventArgs)
' Get the pager row.
Dim pagerRow As FormViewRow = EmployeeFormView.TopPagerRow
' Get the Label controls that display the current page information
' from the pager row.
Dim pageNum As Label = CType(pagerRow.FindControl("PageNumberLabel"), Label)
Dim totalNum As Label = CType(pagerRow.FindControl("TotalPagesLabel"), Label)
If pageNum IsNot Nothing And totalNum IsNot Nothing Then
' Update the Label controls with the current page values.
Dim page As Integer = EmployeeFormView.PageIndex + 1
Dim count As Integer = EmployeeFormView.PageCount
pageNum.Text = page.ToString()
totalNum.Text = count.ToString()
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>FormView PagerTemplate Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>FormView PagerTemplate Example</h3>
<asp:formview id="EmployeeFormView"
datasourceid="EmployeeSource"
allowpaging="true"
datakeynames="EmployeeID"
onitemcreated="EmployeeFormView_ItemCreated"
runat="server">
<itemtemplate>
<table>
<tr>
<td>
<asp:image id="EmployeeImage"
imageurl='<%# Eval("PhotoPath") %>'
alternatetext='<%# Eval("LastName") %>'
runat="server"/>
</td>
<td>
<h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>
<%# Eval("Title") %>
</td>
</tr>
</table>
</itemtemplate>
<pagertemplate>
<table width="100%">
<tr>
<td>
<asp:linkbutton id="PreviousButton"
text="<"
commandname="Prev"
runat="Server"/>
<asp:linkbutton id="NextButton"
text=">"
commandName="Next"
runat="Server"/>
</td>
<td align="right">
Page <asp:label id="PageNumberLabel" runat="server"/>
of <asp:label id="TotalPagesLabel" runat="server"/>
</td>
</tr>
</table>
</pagertemplate>
<pagersettings position="Top"
mode="NextPrevious"/>
</asp:formview>
<!-- 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="EmployeeSource"
selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees]"
connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
runat="server"/>
</form>
</body>
</html>
備註
當屬性設定為 true) 時， (啟用分頁時 AllowPaging ，控制項中 FormView 會自動顯示稱為呼叫器資料列的額外資料列。 呼叫器資料列包含控制項，可讓使用者巡覽至其他記錄，而且可以顯示在控制項的頂端、底部，或控制項的頂端和底部。
TopPagerRow使用 屬性，以程式設計方式存取 FormViewRow 物件，該物件代表 控制項中的 FormView 頂端頁面巡覽列。
注意
TopPagerRow只有在 控制項在 事件中 ItemCreated 建立頂端頁面巡覽列之後 FormView ，才能使用 屬性。
當您需要以程式設計方式操作頂端頁面巡覽列時，例如新增自訂內容時，通常會使用這個屬性。 對 屬性所做的任何修改 TopPagerRow 都必須在控制項系結至資料之後 FormView 執行， FormView 否則控制項會覆寫任何變更。
