Query To Each Item Inside A Datalist

Dec 25, 2007

Hi! I'm creating a social network, and in one page I need to compare each result of the datalist to a value of a table in my database. For example, I have the datalist showing all the entries in the table users, and when I am showing this information, I want each dataitem to be compared to a select statement of the friends of the logged in user, so that if that datalistitem is present in the results of that other select, I will change the text of a field to say "already a friend". If the user is not present in that select, ie is not a friend of the user who is logged in, the text will say "add friend". I have this comparison working already for a specific name, but not for the database query. Can anyone please help me? The code is below...

 
<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" Title="Untitled Page" %>

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">


<script language="VB" runat="server">

    Sub Page_Load(Sender As Object, E As EventArgs)

        Dim DS As DataSet
        Dim MyConnection As SqlConnection
        Dim MyCommand As SqlDataAdapter

        MyConnection = New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True")
        MyCommand = New SqlDataAdapter("select * from aspnet_Users where IsAnonymous='False'", MyConnection)
        'Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|;Integrated Security=True;User Instance=True
        DS = New DataSet()
        MyCommand.Fill(DS, "aspnet_Users")

        MyDataList.DataSource = DS.Tables("aspnet_Users").DefaultView
        MyDataList.DataBind()
       
     
       
    End Sub

</script>


<body>


    <br />


  <ASP:DataList id="MyDataList" RepeatColumns="1" runat="server">

      <ItemTemplate>

        <table cellpadding="10" style="font: 10pt verdana" cellspacing="0">
          <tr>
            <td width="1" bgcolor="BD8672"/>

            <td valign="top">
             
            </td>

            <td valign="top">
           
<div id="hey">

<div id="dados"><b>Name: </b><%#DataBinder.Eval(Container.DataItem, "UserName")%><br>
<b>city: </b><%#DataBinder.Eval(Container.DataItem, "City")%><br></div>              

<div id="photo"><b>Photo: </b><%#DataBinder.Eval(Container.DataItem, "UserName")%><br>
status:
   

    
</div>

             
              <p>
</div>
              <a href='<%# DataBinder.Eval(Container.DataItem, "UserName", "purchase.aspx?titleid={0}") %>' >
               
                <%#IIf(Container.DataItem("UserName") = "marta", "<a href='mailto:" & Container.DataItem("UserName") & "'>Email</a>", "")%>
               
                <img border="0" src="/quickstart/aspplus/images/purchase_book.gif" >
              </a>

            &nbsp;&nbsp;</td>
          </tr>
        </table>

      </ItemTemplate>

  </ASP:DataList>

 

</body>

</asp:Content>
 
Thanks a lot. 

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span.tracecontent b { color:white }
span.tracecontent { background-color:white; color:black;font: 10pt verdana, arial; }
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span.tracecontent h2 { font: 18pt verdana, arial; margin:0,0,0,0}
span.tracecontent h3 { font: 12pt verdana, arial; margin:0,0,0,0}
span.tracecontent th a { color:darkblue; font: 8pt verdana, arial; }
span.tracecontent a { color:darkblue;text-decoration:none }
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Request Details

Session Id:
sesqltrnnbq35g45fxkyqk45
Request Type:
GET

Time of Request:
6/9/2007 12:36:41 AM
Status Code:
500

Request Encoding:
Unicode (UTF-8)
Response Encoding:
Unicode (UTF-8)




Trace Information

Category
Message
From First(s)
From Last(s)

aspx.page
Begin PreInit



aspx.page
End PreInit
4.97502699318581
4.975027

aspx.page
Begin Init
5.03576665047642
0.060740

Unhandled Execution Error
Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.  at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)  at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)  at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)  at System.Data.SqlClient.SqlConnection.Open()  at System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate)  at System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation)  at System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.GetConnectionHolder()  at System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.LoadPersonalizationBlobs(WebPartManager webPartManager, String path, String userName, Byte[]& sharedDataBlob, Byte[]& userDataBlob)  at System.Web.UI.WebControls.WebParts.PersonalizationProvider.LoadPersonalizationState(WebPartManager webPartManager, Boolean ignoreCurrentUser)  at System.Web.UI.WebControls.WebParts.WebPartPersonalization.Load()  at System.Web.UI.WebControls.WebParts.WebPartManager.OnInit(EventArgs e)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Control.InitRecursive(Control namingContainer)  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
8.31843797517178
3.282671

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complete code below:

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