TemplatePagerField.PagerCommand Kejadian
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.
Terjadi ketika tombol diklik dalam TemplatePagerField objek.
public:
event EventHandler<System::Web::UI::WebControls::DataPagerCommandEventArgs ^> ^ PagerCommand;public event EventHandler<System.Web.UI.WebControls.DataPagerCommandEventArgs> PagerCommand;member this.PagerCommand : EventHandler<System.Web.UI.WebControls.DataPagerCommandEventArgs> Public Custom Event PagerCommand As EventHandler(Of DataPagerCommandEventArgs) Jenis Acara
Contoh
Contoh berikut menunjukkan cara menggunakan PagerCommand peristiwa untuk melakukan tindakan yang berbeda tergantung tombol mana yang diklik dalam TemplatePagerField objek.
<%@ 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">
// <Snippet2>
protected void TemplatePagerField_OnPagerCommand(object sender, DataPagerCommandEventArgs e)
{
// Check which button raised the event
switch(e.CommandName)
{
case "Next":
int newIndex = e.Item.Pager.StartRowIndex + e.Item.Pager.PageSize;
if (newIndex <= e.TotalRowCount)
{
e.NewStartRowIndex = newIndex;
e.NewMaximumRows = e.Item.Pager.MaximumRows;
}
break;
case "Previous":
e.NewStartRowIndex = e.Item.Pager.StartRowIndex - e.Item.Pager.PageSize;
e.NewMaximumRows = e.Item.Pager.MaximumRows;
break;
case "First":
e.NewStartRowIndex = 0;
e.NewMaximumRows = e.Item.Pager.MaximumRows;
break;
}
}
// </Snippet2>
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TemplatePagerField.OnPagerCommand Example</title>
<style type="text/css">
body
{
text-align: center;
font: 12px Arial, Helvetica, sans-serif;
}
.item
{
border: solid 1px #2F4F4F;
background: #E6E6FA;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<h3>TemplatePagerField.OnPagerCommand Example</h3>
<asp:ListView ID="StoresListView"
DataSourceID="StoresDataSource"
runat="server">
<LayoutTemplate>
<table width="350" runat="server" id="tblStore">
<tr runat="server">
<th runat="server">ID</th>
<th runat="server">Store Name</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td class="item">
<asp:Label ID="IDLabel" runat="server" Text='<%#Eval("CustomerID") %>' />
</td>
<td align="left" class="item">
<asp:Label ID="NameLabel" runat="server" Text='<%#Eval("Name")%>' />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
<br />
<asp:DataPager runat="server"
ID="ContactsDataPager"
PageSize="30"
PagedControlID="StoresListView">
<Fields>
<asp:TemplatePagerField OnPagerCommand="TemplatePagerField_OnPagerCommand">
<PagerTemplate>
<asp:LinkButton ID="FirstButton" runat="server" CommandName="First"
Text="<<" Enabled='<%# Container.StartRowIndex > 0 %>' />
<asp:LinkButton ID="PreviousButton" runat="server" CommandName="Previous"
Text='<%# (Container.StartRowIndex - Container.PageSize + 1) + " - " + (Container.StartRowIndex) %>'
Visible='<%# Container.StartRowIndex > 0 %>' />
<asp:Label ID="CurrentPageLabel" runat="server"
Text='<%# (Container.StartRowIndex + 1) + "-" + (Container.StartRowIndex + Container.PageSize > Container.TotalRowCount ? Container.TotalRowCount : Container.StartRowIndex + Container.PageSize) %>' />
<asp:LinkButton ID="NextButton" runat="server" CommandName="Next"
Text='<%# (Container.StartRowIndex + Container.PageSize + 1) + " - " + (Container.StartRowIndex + Container.PageSize*2 > Container.TotalRowCount ? Container.TotalRowCount : Container.StartRowIndex + Container.PageSize*2) %>'
Visible='<%# (Container.StartRowIndex + Container.PageSize) < Container.TotalRowCount %>' />
</PagerTemplate>
</asp:TemplatePagerField>
</Fields>
</asp:DataPager>
<!-- 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="StoresDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [CustomerID], [Name] FROM Sales.Store ORDER BY [Name]">
</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">
' <Snippet2>
Protected Sub TemplatePagerField_OnPagerCommand(ByVal sender As Object, _
ByVal e As DataPagerCommandEventArgs)
' Check which button raised the event
Select Case e.CommandName
Case "Next"
Dim newIndex As Integer = e.Item.Pager.StartRowIndex + e.Item.Pager.PageSize
If newIndex <= e.TotalRowCount Then
e.NewStartRowIndex = newIndex
e.NewMaximumRows = e.Item.Pager.MaximumRows
End If
Case "Previous"
e.NewStartRowIndex = e.Item.Pager.StartRowIndex - e.Item.Pager.PageSize
e.NewMaximumRows = e.Item.Pager.MaximumRows
Case "First"
e.NewStartRowIndex = 0
e.NewMaximumRows = e.Item.Pager.MaximumRows
End Select
End Sub
' </Snippet2>
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TemplatePagerField.OnPagerCommand Example</title>
<style type="text/css">
body
{
text-align: center;
font: 12px Arial, Helvetica, sans-serif;
}
.item
{
border: solid 1px #2F4F4F;
background: #E6E6FA;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<h3>TemplatePagerField.OnPagerCommand Example</h3>
<asp:ListView ID="StoresListView"
DataSourceID="StoresDataSource"
runat="server">
<LayoutTemplate>
<table width="350" runat="server" id="tblStore">
<tr runat="server">
<th runat="server">ID</th>
<th runat="server">Store Name</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td class="item">
<asp:Label ID="IDLabel" runat="server" Text='<%#Eval("CustomerID") %>' />
</td>
<td align="left" class="item">
<asp:Label ID="NameLabel" runat="server" Text='<%#Eval("Name")%>' />
</td>
</tr>
</ItemTemplate>
</asp:ListView>
<br />
<asp:DataPager runat="server"
ID="ContactsDataPager"
PageSize="30"
PagedControlID="StoresListView">
<Fields>
<asp:TemplatePagerField OnPagerCommand="TemplatePagerField_OnPagerCommand">
<PagerTemplate>
<asp:LinkButton ID="FirstButton" runat="server" CommandName="First"
Text="<<" Enabled='<%# Container.StartRowIndex > 0 %>' />
<asp:LinkButton ID="PreviousButton" runat="server" CommandName="Previous"
Text='<%# (Container.StartRowIndex - Container.PageSize + 1) & " - " & (Container.StartRowIndex) %>'
Visible='<%# Container.StartRowIndex > 0 %>' />
<asp:Label ID="CurrentPageLabel" runat="server"
Text='<%# (Container.StartRowIndex + 1) & "-" & (IIf(Container.StartRowIndex + Container.PageSize > Container.TotalRowCount, Container.TotalRowCount, Container.StartRowIndex + Container.PageSize)) %>' />
<asp:LinkButton ID="NextButton" runat="server" CommandName="Next"
Text='<%# (Container.StartRowIndex + Container.PageSize + 1) & " - " & (IIf(Container.StartRowIndex + Container.PageSize*2 > Container.TotalRowCount, Container.TotalRowCount, Container.StartRowIndex + Container.PageSize*2)) %>'
Visible='<%# (Container.StartRowIndex + Container.PageSize) < Container.TotalRowCount %>' />
</PagerTemplate>
</asp:TemplatePagerField>
</Fields>
</asp:DataPager>
<!-- 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="StoresDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [CustomerID], [Name] FROM Sales.Store ORDER BY [Name]">
</asp:SqlDataSource>
</form>
</body>
</html>
Keterangan
Peristiwa PagerCommand dimunculkan saat tombol diklik dalam TemplatePagerField objek. Ini memungkinkan Anda untuk melakukan rutinitas kustom setiap kali peristiwa ini terjadi.
Berlaku untuk
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