[mapguide-users] Losing Session ID

Tue Apr 10 08:57:44 EDT 2007

Hi Jackie,

Thanks for your effort, maybe you could give me an example for this way ?

Micha

ps: sorry, i sent you this via email, just a mistake

Jackie Ng wrote:
> 
> Hi There,
> 
> I noticed that there are two <form> tags in that markup, one being
> server-side and the other is not. 
> 
> You could be losing your session id because it is written to the non
> server-side form. If you write the session id to both <form> tags, then
> GetParameters() should retain that session id over multiple postbacks.
> 
> Hope that helps.
> 
> - Jackie
> 
> 
> Micha Lehmann wrote:
>> 
>> 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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