Double Inserting in Listview after Refresh by user

hans · June 8th, 2009, 06:25 PM

Hi,

when my users refresh a page after inserting a record in a ListView, that record is inserted again.
Though probably this won't occur, because a user has no reason to refresh the page, the same thing happens when the last action by the user was inserting and the login time is over. The user gets the login form, gets back to the ListView page where the last inserted record appears to be inserted twice.
Is there a way to avoid this behaviour?

Best regards

Hans

Lee Dumond · June 8th, 2009, 08:19 PM

Have you tried resetting the form after the postback?

hans · June 9th, 2009, 09:58 AM

Hi Lee,

I could use Response.Redirect, but I was hoping for a more subtle solution.
What do you mean by resetting? Is that making all TextBoxes empty?

Changing the behaviour of the Login control would be a solution too. Right now the user returns to the page last visited (in this case the page with the ListView), after a re-login. I expected that my Login Control would direct the user to the Default page, but that's not the case. Is there a way to always redirect to the Default page?

Code:

<asp:Login ID="Login1" runat="server" 
  FailureText="Inloggen is mislukt. Probeer nogmaals." 
    DestinationPageUrl="~/Default.aspx" TitleText="Inloggen" DisplayRememberMe="False">
  <FailureTextStyle Font-Bold="True" />
</asp:Login>

thanks,

Hans

Lee Dumond · June 9th, 2009, 11:02 AM

The DestinationPageUrl property specifies the page that is displayed when a login attempt is successful.

The default behavior of the Login control is to return the user to the referring page, or to the page defined in the defaultUrl attribute of the forms element in the Web.config file.

The DestinationPageUrl property overrides the default behavior of the Login control, as well as the defaultUrl setting made in the configuration file. So yes, specifying the DestinationPageUrl should prevent the user from returning to the same page.