[mapguide-users] Losing Session ID

Tue Apr 10 05:31:54 EDT 2007

Hi there,

i´m going to develop a streetname/housenumber search

i created a master detail drop down list in visual studio 2005 express 
edition, right now i´m able to choose a ID from these list, the lists 
are auto post back enabled, so the site is refreshing each time you 
change a name and/or a number...and then i always loose my session ID

the same result if i´m starting a *.aspx from the task pane frame

whats causes this?

Thank you

Michael

<%@ Page Language="C#"  Debug="true" %>
<%@ Import Namespace = "OSGeo.MapGuide"%> <!--import der Klassenbibliotheken
-->
<!-- #Include File="utilityfunctions.aspx -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server"> 

    protected void DropDownList1_SelectedIndexChanged(object sender,
EventArgs e)
    {

    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Unbenannte Seite</title>

</head>
<body>    

    <form id="form1" runat="server">

    <div>
        <asp:DropDownList ID="DropDownList1" runat="server"
DataSourceID="ObjectDataSource1"
            DataTextField="C01" DataValueField="C02"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"
AutoPostBack="True">
        </asp:DropDownList>
        <asp:DropDownList ID="DropDownList2" runat="server"
AutoPostBack="True" DataSourceID="ObjectDataSource2"
            DataTextField="C12" DataValueField="C01">
            <asp:ListItem></asp:ListItem>
        </asp:DropDownList>
        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
InsertMethod="Insert"
            OldValuesParameterFormatString="original_{0}"
SelectMethod="GetData"
TypeName="DataSet1TableAdapters.ALBSTRASSENTableAdapter">
            <InsertParameters>
                <asp:Parameter Name="C01" Type="String" />
                <asp:Parameter Name="C02" Type="String" />
            </InsertParameters>
        </asp:ObjectDataSource>        
        <asp:ObjectDataSource ID="ObjectDataSource2" runat="server"
OldValuesParameterFormatString="original_{0}"
            SelectMethod="GetDataByC13"
TypeName="DataSet2TableAdapters.E1000TableAdapter">
            <SelectParameters>
                <asp:ControlParameter ControlID="DropDownList1" Name="C13"
PropertyName="SelectedValue"
                    Type="String" />
            </SelectParameters>
        </asp:ObjectDataSource> 
      </div>
    </form>      

    <%
// Display a form prompting the user to enter the beginning
// portion of the parcel owners name. Submitting this form
// replaces the content of this frame with a list of matching
// results.

// If a Search has already been run and the results are still
// visible (e.g. if the ParcelMarker layer is visible), then
// display an button allowing the user to clear the previous
// search results as well.

String mgSessionId = GetParameters()["SESSION"];

try
{
    // Initialize the web-tier and connect to the Tux Site using
    // the Tux session identifier stored in PHP session state.

    InitializeWebTier();

    MgUserInformation userInfo = new MgUserInformation(mgSessionId);
    MgSiteConnection siteConnection = new MgSiteConnection();
    siteConnection.Open(userInfo);

    // Create a ResourceService object and use it to open the Map
    // object from the sessions repository. Use the Map object to
    // determine if the "ParcelMarker" layer is visible.

    MgResourceService resourceService =
siteConnection.CreateService(MgServiceType.ResourceService) as
MgResourceService;
    MgMap map = new MgMap();
    map.Open(resourceService, "Siel660355");

    //MgLayer layer = GetLayerByName(map, "ParcelMarker");
    //showClearButton = (layer == null) ? false : layer.GetVisible();
}
catch (MgException mge)
{
    Response.Write(mge.GetMessage());
    Response.Write(mge.GetDetails());
}
%>

    <form method="post" action="suche2.aspx">
    <p><input name="IDNR" type="text" value="<%=
DropDownList2.SelectedValue%>" /></p>
    <p><input name="sessionID" type="text" value="<%= mgSessionId%>" /></p>
    <p><input type="submit" value="Suche" /></p>
    </form>

    <%           
        Response.Write(mgSessionId);  

     %>    

</body>
</html>

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