vb.net detailsview change data before update

I have a detailview showing data from an MS SQL 2000 table.  It shows fldtaskname, fldstartdate, and fldclosedate.  In edit mode I have put a dropdown list with the values Yes and No.  If the user selects Yes I want to put todays date in the fldCloseDate, if they select No I want to leave the field unchanged.

How do I intercept the update and convert Yes to todays date, or convert No to null value?

<asp:TemplateField HeaderText="Close" SortExpression="fldCloseDate">
<EditItemTemplate>
<asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem Selected="True">No</asp:ListItem>
<asp:ListItem>Yes</asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("fldCloseDate", "{0:dd/MM/yyyy}") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
iepaulAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

CodeCruiserCommented:
Create a SelectedIndexChanged event for the dropdownlist2. Set the autopostback property to true. Inside the event, check whether the text in the list is yes or no and set the date accordingly. For example

if dropdownlist2.text="Yes" then
   txtdate.text=now.tostring
else
  txtdate.text=""
end if
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic.NET

From novice to tech pro — start learning today.