ASPxCalendar.DayCellPrepared Event

Occurs on the server side before a day cell has been rendered.

Assembly : DevExpress.Web.v25.2.dll

Declaration

C#
VB.NET

csharp

public event EventHandler<CalendarDayCellPreparedEventArgs> DayCellPrepared

Public Event DayCellPrepared As EventHandler(Of CalendarDayCellPreparedEventArgs)

Event Data

The DayCellPrepared event's data class is CalendarDayCellPreparedEventArgs. The following properties provide information specific to this event:

Property	Description
Cell	Gets the currently processed cell of a calendar.
Date	Gets the cell processed in the calendar. Inherited from CalendarPickerViewCellEventArgs.
IsOtherMonthDay	Gets a value that indicates whether the processed date is in a month other than the month displayed in the calendar. Inherited from CalendarDayEventArgs.
IsOtherPeriodDate	Returns the value that specifies whether the processed cell doesn’t refer to the current period (month, year, century). Inherited from CalendarPickerViewCellEventArgs.
IsSelected	Gets whether the cell has been selected. Inherited from CalendarPickerViewCellEventArgs.
IsWeekend	Gets a value that indicates whether the processed date is a weekend day.
TextControl	Gets the text control contained within a processed day cell.

Remarks

Write a DayCellPrepared event handler to customize the cell appearance before it is rendered. To customize the cell’s appearance, use the CalendarDayCellPreparedEventArgs.Cell and CalendarDayCellPreparedEventArgs.TextControl properties.

Other event parameter’s properties can be used to get additional information about the processed day.

Example

The code sample below demonstrates how you can handle the ASPxCalendar.DayCellInitialize and ASPxCalendar.DayCellPrepared events to conditionally change the manner with which you render calendar days within a single month. The image below shows the result.

C#
ASPX

csharp

using System.Xml;
using DevExpress.Web.ASPxEditors;
using System.Drawing;

public partial class ASPxCalendar_DayRender : Page {
    XmlDocument xml;

    protected void Page_Load(object sender, EventArgs e) {
        this.xml = new XmlDocument();
        this.xml.Load(MapPath("~/App_Data/CalendarNotes.xml"));
    }

    protected void ASPxCalendar_DayCellInitialize(object sender, CalendarDayCellInitializeEventArgs e) {
        if(GetNoteNodes(e.Date).Count > 0) {
            e.IsWeekend = false;
            e.NavigateUrl = string.Format("javascript:ShowNotes('{0}')", GetDateString(e.Date));
        } else {
            e.IsWeekend = true;
        }        
    }

    protected void ASPxCalendar_DayCellPrepared(object sender, CalendarDayCellPreparedEventArgs e) {
        if(GetNoteNodes(e.Date).Count > 0) {
            e.TextControl.ForeColor = Color.Black;
            e.TextControl.Font.Bold = true;
        }
    }

    string GetDateString(DateTime date) {
        return date.ToString("M/d/yyyy", CultureInfo.InvariantCulture);
    }

    XmlNodeList GetNoteNodes(DateTime date) {
        return GetNoteNodes(GetDateString(date));
    }

    XmlNodeList GetNoteNodes(string dateString) {
        return this.xml.SelectNodes(string.Format("//Notes/Note[@Date='{0}']", dateString));
    }

    ...

}

aspx

<dx:ASPxCalendar ID="ASPxCalendar1" runat="server" VisibleDate="2010-10-1" ReadOnly="True"
     EnableMonthNavigation="false" EnableYearNavigation="false" 
     OnDayCellInitialize="ASPxCalendar_DayCellInitialize"
     OnDayCellPrepared="ASPxCalendar_DayCellPrepared" />