ListView.SortDirection Eigenschaft
Definition
Wichtig
Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.
Ruft die Sortierrichtung des Felds oder der Felder ab, die sortiert werden.
public:
virtual property System::Web::UI::WebControls::SortDirection SortDirection { System::Web::UI::WebControls::SortDirection get(); };[System.ComponentModel.Browsable(false)]
[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)]
public virtual System.Web.UI.WebControls.SortDirection SortDirection { get; }[<System.ComponentModel.Browsable(false)>]
[<System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)>]
member this.SortDirection : System.Web.UI.WebControls.SortDirectionPublic Overridable ReadOnly Property SortDirection As SortDirectionEigenschaftswert
Einer der SortDirection Werte. Der Standardwert lautet SortDirection.Ascending.
- Attribute
Beispiele
Das folgende Beispiel zeigt, wie die SortDirection Eigenschaft zum programmgesteuerten Bestimmen der Sortierrichtung eines ListView Steuerelements verwendet wird.
<%@ 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">
protected void ContactsListView_Sorted(object sender, EventArgs e)
{
SortExpressionLabel.Text = "Sort Column = " +
ContactsListView.SortExpression;
SortDirectionLabel.Text = "Sort Order = " +
ContactsListView.SortDirection.ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>ListView SortDirection and SortExpression Example</title>
<style type="text/css">
body { font: 10pt Trebuchet MS, Arial, Tahoma; }
td { border: 1px solid #E6E6FA; }
.header { background: #B0C4DE; }
.alternatingItem { background: #edf5fd; }
</style>
</head>
<body>
<form id="form1" runat="server">
<h3>SortDirection and SortExpression Example</h3>
<asp:ListView ID="ContactsListView"
DataSourceID="ContactsDataSource"
OnSorted="ContactsListView_Sorted"
runat="server">
<LayoutTemplate>
<table width="640px" runat="server" id="tblContacts">
<tr class="header" align="center" runat="server">
<td>
<asp:LinkButton runat="server" ID="SortByFirstNameButton"
CommandName="Sort" Text="First Name"
CommandArgument="FirstName"/>
</td>
<td>
<asp:LinkButton runat="server" ID="SortByLastNameButton"
CommandName="Sort" Text="Last Name"
CommandArgument="LastName" />
</td>
<td>
<asp:LinkButton runat="server" ID="SortByEmailButton"
CommandName="Sort" Text="Email Address"
CommandArgument="EmailAddress" />
</td>
</tr>
<tr runat="server" id="itemPlaceholder" />
</table>
<asp:DataPager runat="server" ID="PeopleDataPager" PageSize="12">
<Fields>
<asp:NextPreviousPagerField
ShowFirstPageButton="true"
ShowLastPageButton="true" />
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td>
<asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
</td>
<td>
<asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
</td>
<td>
<asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
</td>
</tr>
</ItemTemplate>
<AlternatingItemTemplate>
<tr class="alternatingItem" runat="server">
<td>
<asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
</td>
<td>
<asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
</td>
<td>
<asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
</td>
</tr>
</AlternatingItemTemplate>
</asp:ListView> <br /><br />
<asp:Label ID="SortExpressionLabel"
ForeColor="SteelBlue"
runat="server"/> <br />
<asp:Label ID="SortDirectionLabel"
ForeColor="SteelBlue"
runat="server"/>
<!-- 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="ContactsDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [ContactID], [FirstName], [LastName], [EmailAddress]
FROM Person.Contact" >
</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">
Protected Sub ContactsListView_Sorted(ByVal sender As Object, ByVal e As EventArgs)
SortExpressionLabel.Text = "Sort Column = " & ContactsListView.SortExpression
SortDirectionLabel.Text = "Sort Order = " & ContactsListView.SortDirection.ToString()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>ListView SortDirection and SortExpression Example</title>
<style type="text/css">
body { font: 10pt Trebuchet MS, Arial, Tahoma; }
td { border: 1px solid #E6E6FA; }
.header { background: #B0C4DE; }
.alternatingItem { background: #edf5fd; }
</style>
</head>
<body>
<form id="form1" runat="server">
<h3>SortDirection and SortExpression Example</h3>
<asp:ListView ID="ContactsListView"
DataSourceID="ContactsDataSource"
OnSorted="ContactsListView_Sorted"
runat="server">
<LayoutTemplate>
<table width="640px" runat="server" id="tblContacts">
<tr class="header" align="center" runat="server">
<td>
<asp:LinkButton runat="server" ID="SortByFirstNameButton"
CommandName="Sort" Text="First Name"
CommandArgument="FirstName"/>
</td>
<td>
<asp:LinkButton runat="server" ID="SortByLastNameButton"
CommandName="Sort" Text="Last Name"
CommandArgument="LastName" />
</td>
<td>
<asp:LinkButton runat="server" ID="SortByEmailButton"
CommandName="Sort" Text="Email Address"
CommandArgument="EmailAddress" />
</td>
</tr>
<tr runat="server" id="itemPlaceholder" />
</table>
<asp:DataPager runat="server" ID="PeopleDataPager" PageSize="12">
<Fields>
<asp:NextPreviousPagerField
ShowFirstPageButton="true"
ShowLastPageButton="true" />
</Fields>
</asp:DataPager>
</LayoutTemplate>
<ItemTemplate>
<tr runat="server">
<td>
<asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
</td>
<td>
<asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
</td>
<td>
<asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
</td>
</tr>
</ItemTemplate>
<AlternatingItemTemplate>
<tr class="alternatingItem" runat="server">
<td>
<asp:Label ID="FirstNameLabel" runat="server" Text='<%#Eval("FirstName") %>' />
</td>
<td>
<asp:Label ID="LastNameLabel" runat="server" Text='<%#Eval("LastName") %>' />
</td>
<td>
<asp:Label ID="EmailLabel" runat="server" Text='<%#Eval("EmailAddress") %>' />
</td>
</tr>
</AlternatingItemTemplate>
</asp:ListView> <br /><br />
<asp:Label ID="SortExpressionLabel"
ForeColor="SteelBlue"
runat="server"/> <br />
<asp:Label ID="SortDirectionLabel"
ForeColor="SteelBlue"
runat="server"/>
<!-- 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="ContactsDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
SelectCommand="SELECT [ContactID], [FirstName], [LastName], [EmailAddress]
FROM Person.Contact" >
</asp:SqlDataSource>
</form>
</body>
</html>
Hinweise
Verwenden Sie die SortDirection Eigenschaft, um zu bestimmen, ob das sortierte Feld oder die sortierten Felder in aufsteigender oder absteigender Reihenfolge sortiert werden.
