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POBest Practice for storing data in an ASP.NET web page
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copied!<p>I have a multi-user set of ASP.NET web pages. The pages use AJAX update panels so I can avoid updating the screen on every postback. The lifecycle of each page is as follows:<br> 1. During Page_Load, get relevant data for user from a web service.<br> 2. Store the data (quite large), and a service reference in a static dataset.<br> 3. allow various edits to parts of the data via the screen controls (grids, text boxes)<br> 4. validate data captured via form<br> 5. send updated data back to service </p> <p>I am doing this using static variables in the Page class itself as follows:</p> <pre><code>public partial class MyPage : System.Web.UI.Page { static xxxx.DataCaptureServiceClient m_Service; //reference to web service static string m_PersonID = string.Empty; //current person_id page is viewing static ServResponse m_ServiceResult = null; // reference to our data to edit ( ServResponse is a large data contract) static string m_SortExpression = "Reference"; //default sort expression for grid const int PERSONID_COLUMN = 0; //column index in grid for the personID column const int STATUS_COLUMN = 4; //column index in grid for the application status protected void Page_Load(object sender, EventArgs e) { try { if (!Page.IsPostBack) { // Get new service instance. m_Service = new xxxx.DataCaptureServiceClient(); ShowDataOnPage(); //get data in m_ServiceResult and bind to a grid on screen } } catch (Exception ex) { Response.Redirect("ErrorPage.aspx", false); } } protected void butNext_Click(object sender, EventArgs e) { try { Page.Validate(); if (Page.IsValid) { // Use m_ServiceResult and m_Service to send a packaged submission to the service. SendDatatoService(); Response.Redirect("TheNextPage.aspx", false); } } catch (Exception ex) { Response.Redirect("ErrorPage.aspx", false); } } //Other methods which allow edits to m_ServiceResult </code></pre> <p>I am wondering if:</p> <p>A) This is a good way to implement or are there better practices?<br> B) Should I clear down memory by setting all statics to NULL when I redirect to another page?<br> C) If I clear down the statics do I risk another user losing data? </p> <h2>UPDATE</h2> <p>I have rewritten removing the statics, keeping the const values and passing data I need around as parameters. Where I need to keep data for updates I have kept the minimal amount I need in session[] variables.</p>

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