RadControl DateTimePicker Selecting new time doesn't remove highlight from previous selection

Question

This is not browser specific - the behavior exists in Firefox and IE. The RadControl is being used within a User Control in a SiteFinity site.

Very little customization has been done to the control.

<telerik:RadDateTimePicker ID="RadDateTimePicker1" runat="server"
     MinDate="2010/1/1" Width="250px">
      <ClientEvents></ClientEvents>
      <TimeView starttime="08:00:00" endtime="20:00:00"
           interval="02:00:00"></TimeView>
      <DateInput runat="server" ID="DateInput"></DateInput>
</telerik:RadDateTimePicker>

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        RadDateTimePicker1.MinDate = DateTime.Now;
    }
}

Answer 1

Can you try changing MinDate to use:

RadDateTimePicker1.MinDate = System.DateTime.Parse(String.Format("{0}/{1}/{2}", System.DateTime.Now.Month, System.DateTime.Now.Day, System.DateTime.Now.Year - 1))

And tell me if the behavior changes.

Also, is the new highlight being shown as well, or is it stuck on the old highlighting completely?

Answer 2

[Disclaimer, I work for Telerik]

I don't specifically know what the issue is, however here are some general troubleshooting steps that might help unearth the issue:

1. Check for Javacript errors - (Firefox's Error Console would do it)
2. Isolate the RadDateTimePicker control from Sitefinity - (Create a normal ASPX page and place the RadDateTimePicker control on this page. Does it work in this environment?)
3. Check for stylesheet issues using Firebug and/or remove stylesheets (backup first).

In general, keep simplifying until it starts working then re-add complexity until it breaks again. This normally tells me where the problem is.

Alternately, you could send your project/code to Telerik support. Best of luck.