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EnvelopeGenerator.ReceiverUI/Services/CustomJsonDataConnectionProviderFactory.cs

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+using DevExpress.DataAccess.Json;
+using DevExpress.DataAccess.Web;
+namespace EnvelopeGenerator.ReceiverUI.Services
+{
+    public class CustomJsonDataConnectionProviderFactory : IJsonDataConnectionProviderFactory {
+        public IJsonDataConnectionProviderService Create() {
+            return new WebDocumentViewerJsonDataConnectionProvider(CustomDataSourceWizardJsonDataConnectionStorage.GetConnections());
+        }
+    }
+
+    public class WebDocumentViewerJsonDataConnectionProvider : IJsonDataConnectionProviderService
+    {
+        readonly List<JsonDataConnection> jsonDataConnections;
+        public WebDocumentViewerJsonDataConnectionProvider(List<JsonDataConnection> jsonDataConnections) {
+            this.jsonDataConnections = jsonDataConnections;
+        }
+        public JsonDataConnection GetJsonDataConnection(string name) {
+            var connection = jsonDataConnections.FirstOrDefault(x => x.Name == name);
+            if(connection == null)
+                throw new InvalidOperationException();
+            return connection;
+        }
+    }
+}