WebMap JSON Online

The sample shows how to create a WebMap using the raw json string. The json should be valid json and must match ArcGIS.com WebMap specification.

XAML

<UserControl x:Class="ArcGISWPFSDK.CreateWebMapFromJson"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:esri="http://schemas.esri.com/arcgis/client/2009">
    <Grid x:Name="LayoutRoot" Background="White">
    </Grid>
</UserControl>

C#

using System.Windows.Controls;
using ESRI.ArcGIS.Client.WebMap;
using ESRI.ArcGIS.Client.Geometry;

namespace ArcGISWPFSDK
{
    public partial class CreateWebMapFromJson : UserControl
    {
        Document webMapDocument;
        ESRI.ArcGIS.Client.Projection.WebMercator mercator =
          new ESRI.ArcGIS.Client.Projection.WebMercator();

        public CreateWebMapFromJson()
        {
            InitializeComponent();
            webMapDocument = new Document();
            webMapDocument.GetMapCompleted += webMapDocument_GetMapCompleted;
            string strJson = @"{                                         
                      ""baseMap"": {
                            ""baseMapLayers"": [
                            {
                                ""opacity"": 1,
                                ""url"": ""http://services.arcgisonline.com/ArcGIS/rest/services/World_Terrain_Base/MapServer"",
                                ""visibility"": true
                            },
                            {
                                ""isReference"": true,
                                ""opacity"": 1,
                                ""url"": ""http://services.arcgisonline.com/ArcGIS/rest/services/Reference/World_Reference_Overlay/MapServer"",
                                ""visibility"": true
                            }
                            ],
                            ""title"": ""World_Terrain_Base""
                        },
                        ""operationalLayers"": [
                        {
                            ""itemId"": ""204d94c9b1374de9a21574c9efa31164"",
                            ""opacity"": 0.75,
                            ""title"": ""Soil Survey Map"",
                            ""url"": ""http://server.arcgisonline.com/ArcGIS/rest/services/Specialty/Soil_Survey_Map/MapServer"",
                            ""visibility"": true
                        }
                        ],
                        ""version"": ""1.1""}";

            webMapDocument.GetMapFromJsonAsync(strJson);
        }

        void webMapDocument_GetMapCompleted(object sender, GetMapCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                e.Map.Extent = mercator.FromGeographic(new Envelope(-139.4916, 10.7191, -52.392, 59.5199)) as Envelope;
                LayoutRoot.Children.Add(e.Map);
            }
        }
    }
}

VB.NET

Imports System.Windows
Imports ESRI.ArcGIS.Client
Imports Microsoft.VisualBasic
Imports System.Windows.Controls
Imports ESRI.ArcGIS.Client.WebMap
Imports ESRI.ArcGIS.Client.Geometry

Namespace ArcGISWPFSDK
    Partial Public Class CreateWebMapFromJson
        Inherits UserControl

        Private webMapDocument As Document
        Private mercator As New ESRI.ArcGIS.Client.Projection.WebMercator()

        Public Sub New()
            InitializeComponent()
            webMapDocument = New Document()
            AddHandler webMapDocument.GetMapCompleted, AddressOf webMapDocument_GetMapCompleted
            Dim strJson As String = "{" & ControlChars.CrLf &
              " ""baseMap"": {" & ControlChars.CrLf &
              " ""baseMapLayers"": [" & ControlChars.CrLf &
              " {" & ControlChars.CrLf &
              " ""opacity"": 1," & ControlChars.CrLf &
              " ""url"": ""http://services.arcgisonline.com/ArcGIS/rest/services/World_Terrain_Base/MapServer""," & ControlChars.CrLf &
              " ""visibility"": true" & ControlChars.CrLf & " }," & ControlChars.CrLf &
              " {" & ControlChars.CrLf & "  ""isReference"": true," & ControlChars.CrLf & " ""opacity"": 1," & ControlChars.CrLf &
              " ""url"": ""http://services.arcgisonline.com/ArcGIS/rest/services/Reference/World_Reference_Overlay/MapServer""," & ControlChars.CrLf &
              " ""visibility"": true" & ControlChars.CrLf & " }" & ControlChars.CrLf & " ]," & ControlChars.CrLf &
              "  ""title"": ""World_Terrain_Base""" & ControlChars.CrLf & " }," & ControlChars.CrLf & " ""operationalLayers"": [" & ControlChars.CrLf &
              "   {" & ControlChars.CrLf & " ""itemId"": ""204d94c9b1374de9a21574c9efa31164""," & ControlChars.CrLf & " ""opacity"": 0.75," & ControlChars.CrLf &
              "     ""title"": ""Soil Survey Map""," & ControlChars.CrLf & " ""url"": ""http://server.arcgisonline.com/ArcGIS/rest/services/Specialty/Soil_Survey_Map/MapServer""," & ControlChars.CrLf &
              "  ""visibility"": true" & ControlChars.CrLf & " }" & ControlChars.CrLf & " ]," & ControlChars.CrLf & "  ""version"": ""1.1""}"

            webMapDocument.GetMapFromJsonAsync(strJson)
        End Sub

        Private Sub webMapDocument_GetMapCompleted(ByVal sender As Object, ByVal e As GetMapCompletedEventArgs)
            If e.Error Is Nothing Then
                e.Map.Extent = TryCast(mercator.FromGeographic(New Envelope(-139.4916, 10.7191, -52.392, 59.5199)), Envelope)
                LayoutRoot.Children.Add(e.Map)
            End If
        End Sub
    End Class
End Namespace