Well I added a form that is appending my query string to the URL, but I am still getting this error when trying to run the query:

Error loading Razor Script Locator.cshtml
Cannot perform runtime binding on a null reference

(Also - We are using Umbraco 4.7.0) Thanks!

This is the form I am using:

   <form method="get" action="locations.aspx">
                <p>Find a location near you:</p>
            <fieldset>
                 <label for="s">Address/postcode: </label>
                
                <input type="text" name="s" />
                
                 <label for="s">Radius: </label>
                <select name="radius">
                <option value="0">Please select</option>
                <option value="10">10 miles</option>
                <option value="50">50 miles</option>
                <option value="100">100 miles</option>
                </select>
 
 
              <button type="submit"><span>Go</span></button>
            </fieldset>
        </form>

Is this correct?

And are you using the default settings, or did you set the some params? Could you show the macro tag (placed on the template) ?

Hello! I seem to be having a similar problem and am unable to get working results.

Here's what I've done to set it up:

• I installed the .zip package from the project page.
• I added a property called "coordinates" of the data type "Google Map" to my Document type called "Location"
• I setup the coordinates in each of my "Location" nodes. 
• I inserted the Locator Macro using the following code
  <umbraco:Macro DocTypeAlias="Location" LocationPropAlias="coordinates" 
      UnitInMiles="1" NumberOfResults="500" Alias="Locator" 
      runat="server"></umbraco:Macro>

I figured out what was going on for me.

Some of my coordinates in my Node Collection were not populated and returning a

I simploy put an if statement in the foreach to account for this:

foreach (var node in nodesToSearchThrough) {

          string coordinates = node.GetProperty(locationPropAlias).Value;
    
          if (coordinates != "")
          {
            Location itemLocation = new Location(
              Convert.ToDouble(coordinates.Split(',')[0], Utility.NumberFormatInfo),
              Convert.ToDouble(coordinates.Split(',')[1], Utility.NumberFormatInfo));
    
            items.Add(new GeoItem(node, itemLocation, searchLocation.DistanceBetween(itemLocation, distanceunit)));
          }
        }

Now the following url will work on my site: http://www.mywebsite.net/about/branchesoffices/?s=21801

Hoping this might help someone else too.

I have installed the Locator package Razor edition and was not getting any results. Looking at the trace revealed a similar error to the one @Mike was getting

input string was not in the correct format

The error is occurring at line 48 where a Location object is created with the property's coordinates

Location itemLocation = new Location(
Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[0], Utility.NumberFormatInfo),
        Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[1], Utility.NumberFormatInfo));

i have the same problem, any ideas?

Hi Kalle

I think it will work if you change it to this

Location itemLocation =newLocation(
Convert.ToDouble(node.GetProperty(locationPropAlias).Value.Split(',')[0],Utility.NumberFormatInfo),
        Convert.ToDouble(node.GetProperty(locationPropAlias).Value.Split(',')[1],Utility.NumberFormatInfo));

Hi,

I've been having the 

Error loading Razor Script Locator.cshtml

Cannot perform runtime binding on a null reference

problem and been working on it for the last day or so, finally solved the problem.

I had already created a load of Distributors under List of Distributors before I started playing around with the Locator and Google Maps packages, so I only set two of the distributors with Google Map coordinates. I kept on getting the error message until I filled in all the rest of the Distributors with test Google Maps coordinates and republished them all. If you add any new Distributors, the problem doesnt return...which is nice.

Hope this saves someone a bit of time!

Peace out! 

In my case, I've already got a heap of content that has locations stored using Darren Ferguson's Google Maps datatype. When I tried using this package, I got the error:

Error Loading Razor Script (file: Locator) Input string was not in a correct format.    at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)
  at System.Double.Parse(String s, NumberStyles style, IFormatProvider provider)
  at CallSite.Target(Closure , CallSite , Type , Object , NumberFormatInfo )
  at ASP._Page_macroScripts_Locator_cshtml.Execute() in c:\inetpub\blah.local\macroScripts\Locator.cshtml:line 48

I modified lines 42,43 & 44 of locator.cshtml to be:

              Location itemLocation = new Location(
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[0], Utility.NumberFormatInfo),
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[1], Utility.NumberFormatInfo))

instead of:

              Location itemLocation = new Location(
                    Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[0], Utility.NumberFormatInfo),
                    Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[1], Utility.NumberFormatInfo))

Note the Value.ToString()

It then worked perfectly. Thanks for a great package. Saved me a lot of time and mucking around.

Hi, im trying to use this package but having problem to set it up. The website http://www.nibble.be/?p=105 does not give enough instruction to set it up. I have no idea of where to store the long/late

Please Help

Hi,

I tried  all the method bit still value not getting.please help below are the codes.

 foreach (var node in nodesToSearchThrough) {
              
                 
                                                    
               Location itemLocation = new Location(
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[0], Utility.NumberFormatInfo),
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[1], Utility.NumberFormatInfo));  
                    
              items.Add(new GeoItem(node,itemLocation,searchLocation.DistanceBetween(itemLocation,distanceunit)));                                 
                                                    
                                     
              still shows item count = 0 so no value displaying

regards

mithun
                         

Think the code needs an update will check

Well you need to provide a search by adding ?s=[location that I want to search for] to your querystring but that then ends up in 

Error loading MacroEngine script (file: Locator.cshtml)

Looking into it

Of in the Locator.cshtml scripting file 

look for this code

 Location itemLocation = new Location(

                    Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[0], Utility.NumberFormatInfo),

                    Convert.ToDouble(node.GetProperty(locationPropAlias).ToString().Split(',')[1], Utility.NumberFormatInfo)); 

and change to

 Location itemLocation = new Location(

                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[0], Utility.NumberFormatInfo),

                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[1], Utility.NumberFormatInfo)); 

this is a version that tries to fetch the current user position:

@inherits umbraco.MacroEngines.DynamicNodeContext
@using Locator
@using Locator.GeoCoding
@using Locator.GeoCoding.Services.Google
@using umbraco.MacroEngines;

@{

   @* Select the nodes you want to search through, defaults to children *@
   var nodesToSearchThrough = string.IsNullOrEmpty(Parameter.DocTypeAlias) ?
            Model.Children.Where("Visible"): Model.AncestorOrSelf(1).Descendants(Parameter.DocTypeAlias).Where("Visible");

   @* Alias of the property containing the long/lat, defaults to location *@
   string locationPropAlias = string.IsNullOrEmpty(Parameter.LocationPropAlias) ? "location" : Parameter.locationPropAlias;

   @* Number of results, defaults to 5 *@
   int numberOfSearchResults = string.IsNullOrEmpty(Parameter.NumberOfResults)|| Parameter.NumberOfResults == "0" ? 5 : int.Parse(Parameter.NumberOfResults);

   @* Distance unit, defaults to km *@
   DistanceUnits distanceunit = Parameter.UnitInMiles == "1" ? DistanceUnits.Miles : DistanceUnits.Kilometers;


   List<GeoItem> items = new List<GeoItem>();
   Location searchLocation = new Location();

   if(string.IsNullOrEmpty(Request["s"]))
   {
       @* Search term not provided *@ 


       <div id="location-search">         
       <p>Unable to fetch current location, please use search box</p>
       <form action="@Model.Url">
            <input name="s" type="text" placeholder="Enter the location"/>
            <input type="submit" value="Search" />
       </form>
       </div>

       <text>
           <script>
             document.getElementById("location-search").style.display = 'none';

            if (navigator.geolocation) {
                navigator.geolocation.getCurrentPosition(geoSuccess, geoError);
            }else
            {
                document.getElementById("location-search").style.display = 'block';
            }

            function geoSuccess(position) {
                window.location = "@Model.Url?s=" + position.coords.latitude + "," + position.coords.longitude;
            }
            function geoError(error)
            {
                 document.getElementById("location-search").style.display = 'block';
            }
            </script>
       </text>           

   }
   else 
   {
      @* Lookup search location coordinates *@ 
      GeoResponse r = GoogleGeoCoder.CallGeoWS(Request["s"]);

      if(r.Results.Length == 0)
      {
        @* Location not found *@ 
        <p>Location not found:  @Request["s"]</p>
      }
      else
      {
        @* build up list of results *@       
        searchLocation = new Location(r.Results[0].Geometry.Location.Lat, r.Results[0].Geometry.Location.Lng);

        foreach (var node in nodesToSearchThrough) {

              Location itemLocation = new Location(
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[0], Utility.NumberFormatInfo),
                    Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[1], Utility.NumberFormatInfo));  

              items.Add(new GeoItem(node,itemLocation,searchLocation.DistanceBetween(itemLocation,distanceunit)));



        }
        @* sort based on distance *@
        items.Sort(new GeoItemComparer());

      }
   }
}
@if(items.Count > 0)
{
@* Output Results *@ 

<p>Result for: @Request["s"]</p>

@* Output Map *@

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false">
</script>

<div id="map_canvas" style="width:500px; height:500px"></div>

<script type="text/javascript">
  function initialize() {
    var latlng = new google.maps.LatLng(
                    @searchLocation.Latitude.ToString(Utility.NumberFormatInfo), 
                    @searchLocation.Longitude.ToString(Utility.NumberFormatInfo));
    var myOptions = {
      zoom: 8,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("map_canvas"),
        myOptions);
    @{int c = 1;}                      
    @foreach(GeoItem geo in items.Take(numberOfSearchResults)){
        dynamic node = ((DynamicNode)geo.Node);    

        <text>
          var mLatlng@(c) = new google.maps.LatLng(
                                      @geo.Location.Latitude.ToString(Utility.NumberFormatInfo),
                                      @geo.Location.Longitude.ToString(Utility.NumberFormatInfo));
          var marker@(c) = new google.maps.Marker({
              position: mLatlng@(c) , 
              map: map, 
              title:"@node.Name"
          });                                                              
         </text>
        c++;                                                  
   }
  }
  initialize();
</script>


@* Output list *@
<ul>
@foreach(GeoItem geo in items.Take(numberOfSearchResults)){ 
  dynamic node = ((DynamicNode)geo.Node);                                                
  <li><a href="@node.Url">@node.Name - @geo.Distance.ToString("0.00") km</a></li>                               
}
</ul>
}

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