[Solved] RadDateTimePicker in RadGrid - inserting new row problem

[Courtney]

I have a RadGrid containing a RadDateTimePicker in a template column.  It works fine on edit, but throws error, "Specified cast is not valid" on insert for a new row. 

Here's my code for the edit template:

<

 

EditItemTemplate>  <telerik:RadDateTimePicker ID="RadDateTimePicker4" Runat="server" Culture="English (United States)"

 

 

 

SelectedDate='<%# Bind("Trip_Detail_Begin_Time_Stamp") %>'>

 

 

 

<TimePopupButton HoverImageUrl="" ImageUrl="" />

 

 

 

<TimeView runat="server" CellSpacing="-1"> </TimeView>

 

 

 

<Calendar runat="server" UseColumnHeadersAsSelectors="False" UseRowHeadersAsSelectors="False"

 

 

 

ViewSelectorText="x"> </Calendar> <DatePopupButton HoverImageUrl="" ImageUrl="" />

 

 

 

</telerik:RadDateTimePicker>

 

 

 

</EditItemTemplate>

 

 

 

 

 

 

 

 

 

 

[Buz Barnes]

Have you tried changing the SelectedDate to DbSelectedDate?  So that when it doesn't have a value it knows to leave it blank on the insert form rather than try to bind to the Trip_Detail_Begin_Time_Stamp field in the db.  Also is this field nullable in the database?
<EditItemTemplate>  
            <telerik:RadDateTimePicker ID="RadDateTimePicker4" Runat="server" Culture="English (United States)" DbSelectedDate='<%# Bind("Trip_Detail_Begin_Time_Stamp") %>'>

[Courtney]

You know...I did try that and it did not error off on insert click.  Instead, the pop up wouldn't work on the calendar or time picker.  However, that was before we resolved the problem on the master page with the tree view being too wide.  I'll try it again and letcha know. 

[Courtney]

Okay, that worked.  Also, since the 3.5 framework was installed on the development server, (holding my breath) the other issue with the null footers seems to be resolved too.  Not getting too excited yet...I'll test it more in the morning.