SelectedDatesCollection.Count 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 SelectedDatesCollection 集合中 DateTime 物件的數目。
public:
property int Count { int get(); };public int Count { get; }member this.Count : intPublic ReadOnly Property Count As Integer屬性值
DateTime 中 SelectedDatesCollection 物件的數目。
實作
範例
下列程式碼範例示範如何使用 Count 屬性來判斷集合中的 SelectedDatesCollection 日期數目。 請注意， SelectedDates 控制項的 Calendar 屬性是 類別的 SelectedDatesCollection 實例。
<%@ 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>
<title>ASP.NET Example</title>
<script language="C#" runat="server">
void Button_Click(Object sender, EventArgs e)
{
if (Calendar1.SelectedDates.Count > 0)
{
Label1.Text = "Selected date(s) are: ";
for (int i = 0; i < Calendar1.SelectedDates.Count; i++)
{
Label1.Text += " " + Calendar1.SelectedDates[i].Day.ToString();
}
}
else
Label1.Text = "No dates selected!!";
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"/>
<hr />
<asp:Button id="Button1"
text="Display Selected Dates"
OnClick="Button_Click"
runat="server" /> <br /><br />
<asp:Label id="Label1" runat="server" />
</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>
<title>ASP.NET Example</title>
<script language="VB" runat="server">
Sub Button_Click(sender As Object, e As EventArgs)
If Calendar1.SelectedDates.Count > 0 Then
Label1.Text = "Selected date(s) are: "
Dim i As Integer
For i = 0 To Calendar1.SelectedDates.Count - 1
Label1.Text &= " " &+ Calendar1.SelectedDates(i).Day.ToString()
Next i
Else
Label1.Text = "No dates selected!!"
End If
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:Calendar ID="Calendar1" runat="server"
SelectionMode="DayWeekMonth"/>
<hr />
<asp:Button id="Button1"
text="Display Selected Dates"
OnClick="Button_Click"
runat="server" /> <br /><br />
<asp:Label id="Label1" runat="server" />
</form>
</body>
</html>
備註
使用這個屬性來決定集合中的 SelectedDatesCollection 日期數目。 在 Count 逐一查看集合以判斷上限時，通常會使用 屬性。
