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POPaging in Gridview, can't access another page
 

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    <p>I have a web app where everytime I upload an Excel file, its contents appears in Gridview, which is binded with a DataTable. Using the properties, I have set paging and sorting to true.</p> <p>When I input a file using fileupload and a submit button, the web app has page numbers at the bottom appear. It also correctly sorts it, (my page size is set to 10), however, when i click on the next page (pg 2, for instance), nothing shows up until i upload the another file and hit submit again.</p> <p>This is the code in which I build the table:</p> <pre><code>protected void AddResultToGrid(String url, String result) { data = (DataTable)Session["URLSessionData"]; DataRow dr = data.NewRow(); dr[0] = url; dr[1] = result; data.Rows.Add(dr); gdvResults.DataSource = data; gdvResults.DataBind(); Session["URLSessionData"] = data; } </code></pre> <p>This is the page load:</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { lblFiup.Text = ""; data.Columns.Add("URL", typeof(String)); data.Columns.Add("Status", typeof(String)); gdvResults.DataSource = data; gdvResults.DataBind(); gdvResults.AllowPaging = true; gdvResults.AllowSorting = true; if (!Page.IsPostBack) { Session["URLSessionData"] = data; } } </code></pre> <p>I think it may have something to do with the page index... but i'm not sure. Here's my page index change method:</p> <pre><code> protected void gdvResults_PageIndexChanging(object sender, GridViewPageEventArgs e) { e.NewPageIndex = e.NewPageIndex + 1; DataBind(); } </code></pre> <p>Thanks in advance for your help (: </p> <hr> <pre><code> public partial class _Event : System.Web.UI.Page { public HttpWebRequest req; public HttpWebResponse resp; public String link; public String line; public String stat; public String result; public DataTable data = new DataTable(); public DataTable clrdata = new DataTable(); protected void Page_Load(object sender, EventArgs e) { lblFiup.Text = ""; if (!Page.IsPostBack) { data.Columns.Add("URL", typeof(String)); data.Columns.Add("Status", typeof(String)); AddResultToGrid("", ""); // this is the only way i know how to do this, as of now... data.Rows[0].Delete(); Session["URLSessionData"] = data; BindGridView(); } } private void BindGridView() { gdvResults.DataSource = data; gdvResults.DataBind(); } protected void AddResultToGrid(String url, String result) { data = (DataTable)Session["URLSessionData"]; DataRow dr = data.NewRow(); dr[0] = url; dr[1] = result; data.Rows.Add(dr); gdvResults.DataSource = data; gdvResults.AllowPaging = true; gdvResults.DataBind(); Session["URLSessionData"] = data; } </code></pre>
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