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Calendar.VisibleDate Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets or sets the DateTime value that specifies the month to display on the Calendar control.

public:
 property DateTime VisibleDate { DateTime get(); void set(DateTime value); };
[System.ComponentModel.Bindable(true)]
public DateTime VisibleDate { get; set; }
[<System.ComponentModel.Bindable(true)>]
member this.VisibleDate : DateTime with get, set
Public Property VisibleDate As DateTime

Property Value

DateTime

A DateTime that specifies the month to display on the Calendar. The default value is DateTime.MinValue, which displays the month that contains the date specified by TodaysDate.

Attributes
BindableAttribute

Examples

The following code example demonstrates how to use the VisibleDate property to programmatically set the value that determines the month that is displayed in the Calendar control.

<%@ 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>Calendar Example</title>
<script language="C#" runat="server">

      void ButtonClick(Object sender, EventArgs e) 
      {
         Calendar1.VisibleDate = new DateTime(Calendar1.TodaysDate.Year, 
                                              DropList1.SelectedIndex + 1, 
                                              1);
         Label1.Text = "The VisibleDate property is " + 
                       Calendar1.VisibleDate.ToShortDateString();
      }

   </script>

</head>     
<body>

   <form id="form1" runat="server">

      <h3>Calendar Example</h3>

      <asp:Calendar id="Calendar1" runat="server"  
           SelectionMode="None" 
           ShowGridLines="True">
 
         <SelectedDayStyle BackColor="Yellow"
                           ForeColor="Red">
         </SelectedDayStyle>

      </asp:Calendar>

      <hr /><br />

      Select the month to display: <br />

      <asp:DropDownList id="DropList1" runat="server">

         <asp:ListItem>1</asp:ListItem>
         <asp:ListItem>2</asp:ListItem>
         <asp:ListItem>3</asp:ListItem>
         <asp:ListItem>4</asp:ListItem>
         <asp:ListItem>5</asp:ListItem>
         <asp:ListItem>6</asp:ListItem>
         <asp:ListItem>7</asp:ListItem>
         <asp:ListItem>8</asp:ListItem>
         <asp:ListItem>9</asp:ListItem>
         <asp:ListItem>10</asp:ListItem>
         <asp:ListItem>11</asp:ListItem>
         <asp:ListItem>12</asp:ListItem>

      </asp:DropDownList>

      <asp:Button id="Button1" 
           Text="Submit"
           OnClick="ButtonClick"
           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>Calendar Example</title>
<script language="VB" runat="server">

        Sub ButtonClick(sender As Object, e As EventArgs)
            Calendar1.VisibleDate = New DateTime(Calendar1.TodaysDate.Year, DropList1.SelectedIndex + 1, 1)
            Label1.Text = "The VisibleDate property is " & Calendar1.VisibleDate.ToShortDateString()
        End Sub 'ButtonClick

   </script>

</head>     
<body>

   <form id="form1" runat="server">

      <h3>Calendar Example</h3>

      <asp:Calendar id="Calendar1" runat="server"  
           SelectionMode="None" 
           ShowGridLines="True">
 
         <SelectedDayStyle BackColor="Yellow"
                           ForeColor="Red">
         </SelectedDayStyle>

      </asp:Calendar>

      <hr /><br />

      Select the month to display: <br />

      <asp:DropDownList id="DropList1" runat="server">

         <asp:ListItem>1</asp:ListItem>
         <asp:ListItem>2</asp:ListItem>
         <asp:ListItem>3</asp:ListItem>
         <asp:ListItem>4</asp:ListItem>
         <asp:ListItem>5</asp:ListItem>
         <asp:ListItem>6</asp:ListItem>
         <asp:ListItem>7</asp:ListItem>
         <asp:ListItem>8</asp:ListItem>
         <asp:ListItem>9</asp:ListItem>
         <asp:ListItem>10</asp:ListItem>
         <asp:ListItem>11</asp:ListItem>
         <asp:ListItem>12</asp:ListItem>

      </asp:DropDownList>

      <asp:Button id="Button1" 
           Text="Submit"
           OnClick="ButtonClick"
           runat="server" />

      <br /><br />

      <asp:Label id="Label1" runat="server"/>

   </form>
</body>
</html>

Remarks

Use the VisibleDate property to programmatically set the month to display on the Calendar control. The specified date can be any date in the month you want to display, although it is common to use the first date in the month. This property is set using a System.DateTime object.

The VisibleDate property is updated before the VisibleMonthChanged event is raised. You can provide a custom OnVisibleMonthChanged event handler to set the VisibleDate property and override the automatically generated value.

Applies to

See also