Calendar.SelectionChanged Händelse
Definition
Viktigt
En del information gäller för förhandsversionen av en produkt och kan komma att ändras avsevärt innan produkten blir allmänt tillgänglig. Microsoft lämnar inga garantier, uttryckliga eller underförstådda, avseende informationen som visas här.
Inträffar när användaren väljer en dag, en vecka eller en hel månad genom att klicka på datumväljarkontrollerna.
public:
event EventHandler ^ SelectionChanged;public event EventHandler SelectionChanged;member this.SelectionChanged : EventHandler Public Custom Event SelectionChanged As EventHandler Händelsetyp
Exempel
I följande kodexempel visas hur du anger och kodar en hanterare för händelsen för SelectionChanged att visa antalet objekt som valts Calendar i kontrollen.
<%@ 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 SelectionChanged Example</title>
<script runat="server">
void Selection_Change(Object sender, EventArgs e)
{
// Clear the current text.
Message.Text = "";
// Iterate through the SelectedDates collection and display the
// dates selected in the Calendar control.
foreach(DateTime day in Calendar1.SelectedDates)
{
Message.Text += day.Date.ToShortDateString() + "<br />";
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>Calendar SelectionChanged Example</h3>
Select dates on the Calendar control.<br /><br />
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"
ShowGridLines="True"
OnSelectionChanged="Selection_Change">
<SelectedDayStyle BackColor="Yellow"
ForeColor="Red">
</SelectedDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:silver">
<th>
Selected Dates:
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="No dates selected."
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 SelectionChanged Example</title>
<script runat="server">
Sub Selection_Change(sender As Object, e As EventArgs)
' Clear the current text.
Message.Text = ""
' Iterate through the SelectedDates collection and display the
' dates selected in the Calendar control.
Dim day As DateTime
For Each day In Calendar1.SelectedDates
Message.Text &= day.Date.ToShortDateString() & "<br />"
Next
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>Calendar SelectionChanged Example</h3>
Select dates on the Calendar control.<br /><br />
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"
ShowGridLines="True"
OnSelectionChanged="Selection_Change">
<SelectedDayStyle BackColor="Yellow"
ForeColor="Red">
</SelectedDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:silver">
<th>
Selected Dates:
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="No dates selected."
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 SelectionChanged Example</title>
<script runat="server">
void Selection_Change(Object sender, EventArgs e)
{
// Clear the current text.
Message.Text = "";
// Iterate through the SelectedDates collection and display the
// dates selected in the Calendar control.
foreach(DateTime day in Calendar1.SelectedDates)
{
Message.Text += day.Date.ToShortDateString() + "<br />";
}
}
void Page_Load(Object sender, EventArgs e)
{
// Manually register the event-handling method for the
// SelectionChanged event of the Calendar control.
Calendar1.SelectionChanged += new EventHandler(this.Selection_Change);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>Calendar SelectionChanged Example</h3>
Select a day, week, or month on the Calendar control.<br /><br />
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"
ShowGridLines="True">
<SelectedDayStyle BackColor="Yellow"
ForeColor="Red">
</SelectedDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:silver">
<th>
Selected dates
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="No dates selected."
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 SelectionChanged Example</title>
<script runat="server">
Sub Selection_Change(sender As Object, e As EventArgs)
' Clear the current text.
Message.Text = ""
' Iterate through the SelectedDates collection and display the
' dates selected in the Calendar control.
Dim day As DateTime
For Each day In Calendar1.SelectedDates
Message.Text &= day.Date.ToShortDateString() & "<br />"
Next
End Sub
Sub Page_Load(sender As Object, e As EventArgs)
' Manually register the event-handling method for the
' SelectionChanged event of the Calendar control.
AddHandler Calendar1.SelectionChanged, AddressOf Selection_Change
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>Calendar SelectionChanged Example</h3>
Select a day, week, or month on the Calendar control.<br /><br />
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"
ShowGridLines="True">
<SelectedDayStyle BackColor="Yellow"
ForeColor="Red">
</SelectedDayStyle>
</asp:Calendar>
<hr />
<table border="1">
<tr style="background-color:silver">
<th>
Selected Dates:
</th>
</tr>
<tr>
<td>
<asp:Label id="Message"
Text="No dates selected."
runat="server"/>
</td>
</tr>
</table>
</form>
</body>
</html>
Kommentarer
Den här händelsen utlöses när användaren väljer en dag, en vecka eller en hel månad genom att klicka på datumväljarkontrollerna.
Mer information om hur du hanterar händelser finns i Hantera och höja händelser.
