将值从一个文本框传递到ASP.Net Gridview中的另一个

Question

I have two fields in the GridView 1. Notification Date 2. Effective Date

When user entered/change date in the Notification date, I would like to add 10 addtional days in the Notification date value and auto populate in the effective date every time when user change the notification date. Please advise:

<asp:DetailsView ID="DetailsView1" runat="server" 
DataKeyNames="ID"
DataSourceID="ObjectDataSource1"
OnDataBound="DetailsView_OnDataBound">
<Fields>  

<asp:TemplateField HeaderText="Notification Date">
<HeaderTemplate><span style="color:Red;">*</span> Notification Date  </HeaderTemplate>
<InsertItemTemplate>
<asp:TextBox ID="txtNotificationDate" runat="server" Width="150" Text=""    />
<cc1:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="txtNotificationDate" PopupPosition="Right"/>
</InsertItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtNotificationDate" runat="server" Width="150" Text='<%# Eval("NotificationDate", "{0:d}") %>' />
<cc1:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="txtNotificationDate" PopupPosition="Right"/>
</EditItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderText="Effective Date">       
<InsertItemTemplate>
<asp:TextBox ID="txtEffectiveDate" runat="server" Width="150" Text=""    />
<cc1:CalendarExtender ID="CalendarExtender2" runat="server" TargetControlID="txtEffectiveDate" PopupPosition="Right"/>
</InsertItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtEffectiveDate" runat="server" Width="150" Text='<%# Eval("EffectiveDate", "{0:d}") %>' />
<cc1:CalendarExtender ID="CalendarExtender2" runat="server" TargetControlID="txtEffectiveDate" PopupPosition="Right"/>
</EditItemTemplate>
</asp:TemplateField>

</Fields>
</asp:DetailsView>

Answer 1

Are you married to using the AjaxControlToolkit? Have you considered jqueryui? If you set up the fields as a datepicker , you can listen to the change event of the 1st box and update the 2nd one accordingly.

Update The CalendarExtender probably works the same way as the datepicker. If you want immediate updates to show, you'll need to use javascript. You'll still need to listen on the change event.