[mapguide-users] Trying to create an ajax search thingo

Mon Apr 27 22:25:36 EDT 2009

I'm trying to populate an Ajax TabContainer with a tab for each search.

I'm getting an error for line 94: "The map definition is invalid. "

foreach (MgLayer cLayer in cadFeatures.GetLayers())

Is it best to store the information needed for each search in a MgSelection
or would it be better to extract information needed to a DataTable? I'm
trying to make it as flexible as possible..... hopefully adding some other
search type other than just DropDownList.

At the moment this runs seperate to mapguide and does not interact with the
map itself (just for testing at the moment).

-------------
Default.aspx
--------------
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="Searchtool_Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit"
TagPrefix="cc1" %>
<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35"
  Namespace="System.Web.UI" TagPrefix="asp" %>
<!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>Untitled Page</title>
</head>
<body>
  <form id="form1" runat="server">
  <asp:ScriptManager ID="ScriptManager1" runat="server">
  </asp:ScriptManager>
  <div>
    <cc1:TabContainer ID="SearchContainer" runat="server" ActiveTabIndex="0"
>
      <cc1:TabPanel runat="server" HeaderText="TabPanel1" ID="TabPanel1"
Visible="False">
      </cc1:TabPanel>
    </cc1:TabContainer>
  </div>
  </form>
</body>
</html>

-------------------
Default.aspx.cs
-------------------
using System;
using System.Collections.Specialized;
using System.Text;
using System.Globalization;
using OSGeo.MapGuide;
using System.Web;
using System.Data;
using System.Collections;
using System.Web.UI.WebControls;
using System.Web.UI;

public partial class Searchtool_Default : System.Web.UI.Page
{
  //define all selections for searches here
  internal static MgSelection cadFeatures;
  internal static MgSelectionBase geoFeatures;

  //get selection ready for searching on
  protected MgSelection createSelectionMaster(String[] Layers)
  {

MapGuideApi.MgInitializeWebTier(Request.ServerVariables["APPL_PHYSICAL_PATH"]
+ "../webconfig.ini");
    MgUserInformation userInfo = new MgUserInformation("Anonymous", "");
    MgSite site = new MgSite();
    //connect to site
    site.Open(userInfo);
    String sessionId = site.CreateSession();
    MgSiteConnection siteConnection = new MgSiteConnection();
    //open site connection
    siteConnection.Open(userInfo);
    MgResourceService ResourceService =
siteConnection.CreateService(MgServiceType.ResourceService) as
MgResourceService;
    MgFeatureService FeatureService =
siteConnection.CreateService(MgServiceType.FeatureService) as
MgFeatureService;
    MgResourceIdentifier mgResourceID = new
MgResourceIdentifier("Library://Production/PortBris/Maps/PortBris.MapDefinition");
    MgMap map = new MgMap();
    map.Create(ResourceService, mgResourceID, "PortBris");

    MgSelection thisSel = new MgSelection();
    foreach (String layer in Layers)
    {
      MgLayer cLayer = map.GetLayers().GetItem(layer) as MgLayer;
      string layerClassName = cLayer.GetFeatureClassName();
      string selectionString = thisSel.GenerateFilter(cLayer,
layerClassName);
      string layerFeatureId = cLayer.GetFeatureSourceId();
      MgResourceIdentifier layerFeatureResource = new
MgResourceIdentifier(layerFeatureId);
      MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
      queryOptions.SetFilter(selectionString);
      MgFeatureReader cFeatReader =
FeatureService.SelectFeatures(layerFeatureResource, layerClassName,
queryOptions);
      thisSel.AddFeatures(cLayer as MgLayerBase, cFeatReader, -1);
    }
    return thisSel;
  }

  //return an array
  protected String[] StringArray(String CommaSeperatedLayers)
  {
    return CommaSeperatedLayers.Split(",".ToCharArray());
  }
  //add a DDL search type to the TabContainer
  //ToDo: add list search capabilities and filtering
  protected DropDownList addSearchDDL(Control controlToAddTo, String
searchDDLId, String labelText)
  {
    Label cLabel = new Label();
    cLabel.Text = labelText;
    controlToAddTo.Controls.Add(cLabel);

    DropDownList cDDL = new DropDownList();
    cDDL.ID = searchDDLId;
    controlToAddTo.Controls.Add(cDDL);
    return cDDL;
  }
  //add a new Tab to the Ajax TabContainer
  //each tab is a different search type
  protected AjaxControlToolkit.TabPanel
AddTab(AjaxControlToolkit.TabContainer TabCont, String TabID, String Header)
  {
    AjaxControlToolkit.TabPanel newTab = new AjaxControlToolkit.TabPanel();
    newTab.ID = TabID;
    newTab.HeaderText = Header;
    TabCont.Tabs.Add(newTab);
    TabCont.TabIndex = 1;

    return newTab;
  }
  //init all search engines
  //ToDo: Add more searches
  //ToDo: Add Primary Search properties
  //ToDo: Add Advanced Search properties

  protected void Page_Load(object sender, EventArgs e)
  {
    //add tab for search
    AjaxControlToolkit.TabPanel cadSearch =
AddTab(SearchContainer,"cadSearch","Cadastre");
    //assign all cadastre features to the cadastre selection set.
    cadFeatures = createSelectionMaster(StringArray("cadFREE,cadPPLE"));
    //find if control with ID already exists on this tabPanel.
    foreach (MgLayer cLayer in cadFeatures.GetLayers())
    {
      //write out each Properties search Drop down List
      foreach (MgPropertyDefinition cPropDef in
cLayer.GetClassDefinition().GetProperties())
      {
        if (cadSearch.Controls.Contains(addSearchDDL(cadSearch,
cPropDef.Name, cPropDef.Description)))
          Response.Write("control added already");
      }
      //MgFeatureReader cFeatReader =
cadSearchResults.GetSelectedFeatures(cLayer as MgLayerBase,
cLayer.GetClassName(),true)
      //while(cFeatReader.ReadNext())
      //{
      //  int cPropCount =
cFeatReader.GetClassDefinition().GetProperties().Count;
      //}
    }
  }
}

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