按需求定制ASP.NET Calendar控件(Customize the ASP.NET Calendar Control)

如今各种各样的日历控件满天飞（参见http://www.cnblogs.com/blodfox777/archive/2008/08/13/1266639.html），使用ASP.NET Calendar控件的朋友貌似不多了，但今天一个客户的古怪问题却让我想起了它的一个大优点：可以按照自己的要求进行定制！

问：

Scenario: I have a calendar control in an aspx page and gets populated using a datasource. The data in this view is more of a title that the user can drill into.

Question: I want to link the date (Eg: 20) so when user clicks a client side event is fired and not a postback is done. How can I hook the date with a client side script?

Thanks

答：

As far as I know, if you would like to customize the ASP.NET Calendar control, the code should be written in the ondayrender event handle.

Just like the following demo:

When use click on a day on this calendar, instead of post back, a user definable JavaScript function will be called:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %>

<!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></title>
<script type="text/javascript">
function clickdate(day)
{
    window.alert(day);
}
</script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <div><asp:Calendar ID="Calendar1" runat="server"
                ondayrender="Calendar1_DayRender"></asp:Calendar></div>
    </div>
    </form>
</body>
</html>

protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)
{

e.Cell.Text = "<input type='button' value='" + e.Day.Date.Day.ToString() + "' onclick='clickdate(this.value);'/>";
}

For more information about ondayrender, I would like to suggest you to check the following link, which talks about ondayrender of Calendar control.

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.calendar.dayrender.aspx

If I’ve misunderstood the facing issue, please feel free to let me know.

Thanks.