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Retain Chart On PostBack
Retain Chart On PostBack
- This question may be a fairly common one, but I don't seem to be able to find a solution.
I have a simple chart that I am populating in code based on the user who is viewing the website. My problem is that the Chart becomes blank after a post-back on the page. Assuming that I was initializing some data in the asp code, I shifted all my initializations (visual appearance etc) to C# code.
My aspx page contains just
<asp:Chart ID="ChartUserPoints" runat="server" Height="247px" Width="382px" style="margin-right: 0px"></asp:Chart>
I have ViewState set to Default. But on each postback, my viewstate data is null. I am using temp file configuration in web.config with timeout = 20 (if that matters)
Could someone please help me solve this problem?
Respostas
- Enable view state in the aspx page - EnableViewState have to be set before page load stage:
<asp:Chart ID="ChartUserPoints" runat="server" Height="247px" Width="382px" style="margin-right: 0px" EnableViewState="True"></asp:Chart>
- Marcado como RespostaOhil segunda-feira, 13 de julho de 2009 5:37
- Sugerido como RespostaDelianTMSFT, Moderadorterça-feira, 7 de julho de 2009 16:57
Todas as Respostas
- Enable view state in the aspx page - EnableViewState have to be set before page load stage:
<asp:Chart ID="ChartUserPoints" runat="server" Height="247px" Width="382px" style="margin-right: 0px" EnableViewState="True"></asp:Chart>
- Marcado como RespostaOhil segunda-feira, 13 de julho de 2009 5:37
- Sugerido como RespostaDelianTMSFT, Moderadorterça-feira, 7 de julho de 2009 16:57
