Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > Ajax > Using RadTimePicker Class for overriding SelectedDate Property

• nitesh monga

  Posted on Jul 7, 2009 (permalink)

  Hi there,
  
  I am trying to create a custom class which inherits radtimepicker class, and overrides the SelectedDate property of the class. but i am stuck at how to use this class with the radtimepicker control and let that control use the override property.
  
  why i want to do this is because we have lots for classic RadControls in our application now we are migrating them to the new ajax version, previously we were using asp:TextBox with JS to get the time value and to validate the value, with radtimepicker we get all the functionality we want without any extra JS :). the only problem is getting only the time value from the radtimepicker and not the date with that. while searching i found i can do that by using CType(radtimepicker .SelectedDate, DateTime).ToString("tt") but this will take a lot of time to implement :(. if i can just override the SelectedDate property and place the above .ToString("tt") with the GETTER it will be more easy :).
  
  i hope i am able to explain my problem. any example code will be a great help.
  
  Thanks
  Nitesh Monga

  Reply

• Veli Veli

  Posted on Jul 10, 2009 (permalink)

  Hello nitesh,
  
  DateTime object's ToShortTimeString() probably is exactly what you need. So something like:
  
  radTimePicker.SelectedDate.Value.ToShortTimeString()  should work for you. If not, here is a sample approach:
  
  

  public class CustomRadTimePicker : RadTimePicker

  {

  public string SelectedTime

  {

  get

  {

  return this.SelectedDate.Value.ToShortTimeString();

  }

  set

  {

  DateTime date;

  if (DateTime.TryParse(value, out date))

  {

  this.SelectedDate = date;

  }

  else

  {

  throw new Exception("String cannot be parsed to a valid DateTime.");

  }

  }

  }

  }

  
  

  Public Class CustomRadTimePicker

  Inherits RadTimePicker

  Public Property SelectedTime() As String

  Get

  Return Me.SelectedDate.Value.ToShortTimeString()

  End Get

  Set

  Dim [date] As DateTime

  If DateTime.TryParse(value, [date]) Then

  Me.SelectedDate = [date]

  Else

  Throw New Exception("String cannot be parsed to a valid DateTime.")

  End If

  End Set

  End Property

  End Class

  
  
  Sincerely yours,
  Veli
  the Telerik team

  
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  Reply



• nitesh monga

  Posted on Jul 11, 2009 (permalink)

  Thank you for the sample code :). i already tested this code but i am unable to use this class with the rad controls :(. it always give a type cast exception..
  
  thanks
  Nitesh

  Reply

• Answer Veli Veli

  Posted on Jul 13, 2009 (permalink)

  Hello Nitesh,
  
  What are trying to achieve? Can you share some sample code? Alternatively, try the ToShortTimeString() apporach.
  
  Regards,
  Veli
  the Telerik team

  
  Instantly find answers to your questions on the new Telerik Support Portal.
  Check out the tips for optimizing your support resource searches.

  Reply

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