ShapeFileReader: The DBF file is invalid or has unsupported format

[vishal]

Hi There

Control: RadMaps
Version: 2014.3.1021.45
License: Trial

I'm trying to load ESRI Shapefile inside RadMap using InformationLayer manually, but getting this issue "The DBF file is invalid or has unsupported format."
The shapefiles which I'm referring to is running fine in other window application.

Telerik example link which I'm referring is here http://www.telerik.com/help/wpf/radmap-features-shapefiles-support.html

Here is a WPF project that can reproduce the issue: https://www.dropbox.com/s/tr2vorqfbllbn6r/TelerikRadMap.rar?dl=0

Have attached the screen shots.

Thanks in Anticipation.

[Petar Mladenov]

Hi Vishal,

The exception is expected. You have misplaced the shp stream with the dbf stream. Just replace the two arguments or replace the names of your streams:

StreamResourceInfo shapeResourceInfo = Application.GetResourceStream(new Uri("/TelerikRadMaps;component/ShapeFiles/coast.dbf", UriKind.RelativeOrAbsolute));
               StreamResourceInfo dbfResourceInfo = Application.GetResourceStream(new Uri(" /TelerikRadMaps;component/ShapeFiles/coast.shp", UriKind.RelativeOrAbsolute));
               List<FrameworkElement> shapes = ShapeFileReader.Read(shapeResourceInfo.Stream, dbfResourceInfo.Stream);

When you fix these lines the shape over the Mauritius island could be seen successfully witht he following Map settings:

Center="-19.981681155272,57.3084997231693" ZoomLevel="8"

Regards,
Petar Mladenov
Telerik

 

 

[vishal]

Hi Petar 

Thanks for highlighting the issue,however still can't see the map.

Code behind:

 

private void Window_Loaded(object sender, RoutedEventArgs e)
       {
           try
           {

               StreamResourceInfo shapeResourceInfo = Application.GetResourceStream(new Uri("/TelerikRadMaps;component/ShapeFiles/coast.shp", UriKind.RelativeOrAbsolute));
               StreamResourceInfo dbfResourceInfo = Application.GetResourceStream(new Uri(" /TelerikRadMaps;component/ShapeFiles/coast.dbf", UriKind.RelativeOrAbsolute));
               List<FrameworkElement> shapes = ShapeFileReader.Read(shapeResourceInfo.Stream, dbfResourceInfo.Stream);
               foreach (var shape in shapes)
               {
                   this._informationLayer.Items.Add(shape);
               }
           }
           catch { }
       }

I have set the center lat and lon and zoom level as suggested in the  xaml.

XAML:

<Window xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"  x:Class="TelerikRadMaps.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="650" Width="950" Loaded="Window_Loaded">
    <StackPanel>
        <telerik:RadMap x:Name="radMap"  Width="900" Height="600" Center="-19.981681155272,57.3084997231693" ZoomLevel="8">
            <telerik:InformationLayer x:Name="_informationLayer">

            </telerik:InformationLayer>
        </telerik:RadMap>
        <telerik:RadTreeView ></telerik:RadTreeView>
    </StackPanel>
</Window>

Can you highlight what wrong I'm doing. Link of the project is here

Thanks in Anticipation

[Petar Mladenov]

Hello Vishal,

You need to set provider in RadMap in order to view maps. For example:

<telerik:RadMap x:Name="radMap"  Width="900" Height="600" Center="-19.981681155272,57.3084997231693" ZoomLevel="8">
           <telerik:RadMap.Provider>
               <telerik:OpenStreetMapProvider />
           </telerik:RadMap.Provider>

Please also refer to the following help articles:

RadMap Getting Started
RadMap Providers Overview

Regards,
Petar Mladenov
Telerik