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Asked: 2026-05-10T21:13:01+00:00

I am using ASP.NET 2.0 and VS 2005. I need to populate a grid

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I am using ASP.NET 2.0 and VS 2005. I need to populate a grid on an update panel from an Oracle refcursor after the user clicks a button. I have an example from another project, but it is pretty complicated. Is there an easy way to display the data in a grid in an updatepanel? We don’t want the data to be displayed when the tab is first opened, just after the user clicks a button.

TIA, Theresa

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  1. I’m posting some code here because this stuff is hard to figure out and research. here’s one simple way to do it using the Microsoft Oracle Data Provider (I prefer ODP.NET):

    <%@ Page Language='C#' AutoEventWireup='true' %> <%@ Import Namespace='System.Data' %> <%@ Import Namespace='System.Data.OracleClient' %>  <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>  <html xmlns='http://www.w3.org/1999/xhtml'> <head runat='server'> <title>GridView w/ Oracle Ref Cursor</title> <style type='text/css'>     body {padding:25px;}     .Button1 {margin:35px 0;} </style> <script runat='server' type='text/C#'>     protected void Page_Load(object sender, EventArgs e) {     }      protected void Button1_Click(object sender, EventArgs e) {         var dataSet = new DataSet();         // get connection string from web.config         var connStr = ConfigurationManager.ConnectionStrings['ConnStr1'].ConnectionString;         // create connection         using (var conn = new OracleConnection(connStr)) {             // create & define the parameter             var refCursorParam = new OracleParameter();             refCursorParam.ParameterName = 'RET';             refCursorParam.OracleType = OracleType.Cursor;             refCursorParam.Direction = ParameterDirection.Output;             // create & define the command             var cmd = new OracleCommand();             cmd.CommandText = 'GET_ALL_EMPS';             cmd.CommandType = CommandType.StoredProcedure;             cmd.Parameters.Add(refCursorParam);             cmd.Connection = conn;             // use data adapter to fill dataset             using (var adapter = new OracleDataAdapter(cmd))                 adapter.Fill(dataSet);         }         // set some gridview properties         GridView1.AllowPaging = true;         GridView1.PageSize = 5;          // bind dataset to grid         GridView1.DataSourceID = null;         var dv = dataSet.Tables[0].AsDataView();         // save dataview to session so gridview can be re-bound later         Session['dataView'] = dv;         GridView1.DataSource = dv;         GridView1.DataBind();          pCount.InnerText = 'Total Row Count: ' + dataSet.Tables[0].Rows.Count.ToString();          // dispose of dataset         dataSet.Dispose();     }      void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) {         // get dataview from session         var dv = (DataView)Session['dataView'];         GridView1.DataSource = dv;         GridView1.PageIndex = e.NewPageIndex;         GridView1.DataBind(); // re-bind data     } </script> </head> <body> <form id='form1' runat='server'> <asp:ScriptManager ID='ScriptManager1' runat='server' /> <div>     <asp:UpdatePanel id='updatepanel1' runat='server'>         <ContentTemplate>             <asp:Button ID='Button1'                 runat='server'                 Text='Refresh GridView'                 OnClick='Button1_Click' />             <p id='pCount' runat='server' />             <asp:GridView ID='GridView1'                           runat='server'                           OnPageIndexChanging='GridView1_PageIndexChanging' />         </ContentTemplate>     </asp:UpdatePanel> </div> </form> </body> </html>

    try this out and let me know if you have any questions. here’s some good references:

    -gabe

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