Calendar.VisibleMonthChanged Ereignis
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.
Tritt auf, wenn der Benutzer auf die Navigationssteuerelemente des nächsten oder vorherigen Monats in der Titelüberschrift klickt.
public:
event System::Web::UI::WebControls::MonthChangedEventHandler ^ VisibleMonthChanged;public event System.Web.UI.WebControls.MonthChangedEventHandler VisibleMonthChanged;member this.VisibleMonthChanged : System.Web.UI.WebControls.MonthChangedEventHandler Public Custom Event VisibleMonthChanged As MonthChangedEventHandler Ereignistyp
Beispiele
Im folgenden Codebeispiel wird veranschaulicht, wie ein Handler für das VisibleMonthChanged Ereignis angegeben und codiert wird, um anzuzeigen, ob das Calendar Steuerelement einen Monat vorwärts oder rückwärts verschoben hat.
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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> Calendar VisibleMonthChanged Example </title>
<script runat="server">
void MonthChange(Object sender, MonthChangedEventArgs e)
{
if (e.NewDate.Month > e.PreviousDate.Month)
{
Message.Text = "You moved forward one month.";
}
else
{
Message.Text = "You moved backwards one month.";
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> Calendar VisibleMonthChanged Example </h3>
Select a different month on the calendar.
<br /><br />
<asp:Calendar id="Calendar1" runat="server"
OnVisibleMonthChanged="MonthChange">
<WeekendDayStyle BackColor="gray">
</WeekendDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:Silver">
<th>
Month navigation direction
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="Starting month."
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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> Calendar VisibleMonthChanged Example </title>
<script runat="server">
Sub MonthChange(sender As Object, e As MonthChangedEventArgs)
If e.NewDate.Month > e.PreviousDate.Month Then
Message.Text = "You moved forward one month."
Else
Message.Text = "You moved backwards one month."
End If
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> Calendar VisibleMonthChanged Example </h3>
Select a different month on the calendar.
<br /><br />
<asp:Calendar id="Calendar1" runat="server"
OnVisibleMonthChanged="MonthChange">
<WeekendDayStyle BackColor="gray">
</WeekendDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:Silver">
<th>
Month navigation direction
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="Starting Month."
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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> Calendar VisibleMonthChanged Example </title>
<script runat="server">
void MonthChange(Object sender, MonthChangedEventArgs e)
{
if (e.NewDate.Month > e.PreviousDate.Month)
{
Message.Text = "You moved forward one month.";
}
else
{
Message.Text = "You moved backwards one month.";
}
}
void Page_Load(Object sender, EventArgs e)
{
// Manually register the event-handling method for the
// VisibleMonthChanged event of the Calendar control.
Calendar1.VisibleMonthChanged +=
new MonthChangedEventHandler(this.MonthChange);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> Calendar VisibleMonthChanged Example </h3>
Select a different month on the calendar.
<br /><br />
<asp:Calendar id="Calendar1" runat="server">
<WeekendDayStyle BackColor="gray">
</WeekendDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:Silver">
<th>
Month navigation direction
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="Starting month."
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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> Calendar VisibleMonthChanged Example </title>
<script runat="server">
Sub MonthChange(sender As Object, e As MonthChangedEventArgs)
If e.NewDate.Month > e.PreviousDate.Month Then
Message.Text = "You moved forward one month."
Else
Message.Text = "You moved backwards one month."
End If
End Sub
Sub Page_Load(sender As Object, e As EventArgs)
' Manually register the event-handling method for the
' VisibleMonthChanged event of the Calendar control.
AddHandler Calendar1.VisibleMonthChanged, AddressOf MonthChange
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> Calendar VisibleMonthChanged Example </h3>
Select a different month on the calendar.
<br /><br />
<asp:Calendar id="Calendar1" runat="server">
<WeekendDayStyle BackColor="gray">
</WeekendDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:Silver">
<th>
Month navigation direction
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="Starting Month."
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
Hinweise
Dieses Ereignis wird ausgelöst, wenn der Benutzer auf die Navigationselemente des nächsten oder vorherigen Monats in der Titelüberschrift klickt.
Weitere Informationen zur Behandlung von Ereignissen finden Sie unter behandeln und Auslösen von Ereignissen.
