SelectedDatesCollection.Contains Method (DateTime)
.NET Framework (current version)
Returns a value indicating whether the SelectedDatesCollection collection contains the specified System.DateTime object.
Assembly: System.Web (in System.Web.dll)
Parameters
- date
-
Type:
System.DateTime
The System.DateTime to search for in the SelectedDatesCollection.
Return Value
Type: System.Booleantrue if the SelectedDatesCollection contains the specified System.DateTime; otherwise, false.
Use this method to determine whether the SelectedDatesCollection collection contains the specified System.DateTime object.
The following code example demonstrates how to use the Contains method to determine whether the SelectedDatesCollection collection contains the specified System.DateTime object.
<%@ 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) Dim current_month As Integer = Calendar1.VisibleDate.Month Dim current_year As Integer = Calendar1.VisibleDate.Year Calendar1.VisibleDate = Calendar1.TodaysDate Dim theDate As New DateTime(current_year, current_month, 15) If Calendar1.SelectedDates.Contains(theDate) Then Label1.Text = "Yes, you selected the 15th!!" Else Label1.Text = "No, you didn't select the 15th!!" End If End Sub </script> </head> <body> <form id="form1" runat="server"> <asp:Calendar ID="Calendar1" runat="server" SelectionMode="DayWeekMonth"/> <hr /> Select dates on the Calendar and click the button below <br /> to validate that the 15th on the month was selected <br /><br /> <asp:Button id="Button1" text="Validate the 15th" OnClick="Button_Click" runat="server" /> <br /><br /> <asp:Label id="Label1" runat="server" /> </form> </body> </html>
.NET Framework
Available since 1.1
Available since 1.1
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