I'm trying to just bind a list of the WeatherForecast (default blazor template) the Grid in a Client side blazor app that calls an ordinary REST get method. I can see that the objects are returned but I just get the "progress icon" and the following error (I tried the same from server side blazor project and no issue):
This is the code:
<EjsGrid DataSource="@forecasts" AllowPaging="true">
<GridPageSettings PageCount="5"></GridPageSettings>
<GridColumns>
<GridColumn Field=@nameof(WeatherForecast.Summary) HeaderText="Summary" TextAlign="TextAlign.Left" Width="120"></GridColumn>
</GridColumns>
</EjsGrid>
This is the error:
Uncaught (in promise) Error: System.NullReferenceException: Object reference not set to an instance of an object.
at System.Linq.EnumerableRewriter.FindEnumerableMethod (System.String name, System.Collections.ObjectModel.ReadOnlyCollection`1[T] args, System.Type[] typeArgs) <0x3eb09b0 + 0x000b0> in <fe050c2c735c46059c45daa7bea399be>:0
at System.Linq.EnumerableRewriter.VisitMethodCall (System.Linq.Expressions.MethodCallExpression m) <0x3ea90a0 + 0x00140> in <fe050c2c735c46059c45daa7bea399be>:0
at System.Linq.Expressions.MethodCallExpression.Accept (System.Linq.Expressions.ExpressionVisitor visitor) <0x3e97888 + 0x0000c> in <fe050c2c735c46059c45daa7bea399be>:0
at System.Linq.Expressions.ExpressionVisitor.Visit (System.Linq.Expressions.Expression node) <0x2cbde20 + 0x00018> in <fe050c2c735c46059c45daa7bea399be>:0
at System.Linq.EnumerableQuery`1[T].GetEnumerator () <0x3ea1500 + 0x00022> in <fe050c2c735c46059c45daa7bea399be>:0
at System.Linq.EnumerableQuery`1[T].System.Collections.IEnumerable.GetEnumerator () <0x3ea1240 + 0x00004> in <fe050c2c735c46059c45daa7bea399be>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList (Newtonsoft.Json.JsonWriter writer, System.Collections.IEnumerable values, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) <0x2dd8610 + 0x000a6> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) <0x2d46fe8 + 0x001d6> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) <0x2ebd648 + 0x0013a> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) <0x2d46fe8 + 0x0018c> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) <0x2c3a788 + 0x000e6> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) <0x2c375e8 + 0x00540> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.JsonSerializer.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) <0x2c36ce0 + 0x00014> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) <0x2bec728 + 0x00060> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.Formatting formatting, Newtonsoft.Json.JsonSerializerSettings settings) <0x2f091a0 + 0x0002c> in <12891e825fce44a581e5bbbb579c1d49>:0
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, Newtonsoft.Json.Formatting formatting, Newtonsoft.Json.JsonSerializerSettings settings) <0x2f090e8 + 0x0000e> in <12891e825fce44a581e5bbbb579c1d49>:0
at Syncfusion.EJ2.Blazor.BaseComponent.DataProcess (System.String dataManager, System.String key) <0x3e785c8 + 0x00368> in <bb9b141e9b8e4c2aaac23f2dbe27e604>:0
at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) <0x2438208 + 0x000d2> in <66ea9b39e1e746d2b4249543530555e0>:0
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.JSInterop.DotNetDispatcher.InvokeSynchronously (System.String assemblyName, System.String methodIdentifier, System.Object targetInstance, System.String argsJson) <0x32683a8 + 0x00118> in <30781c3ac5104a4783ec7e7411267cbe>:0
at Microsoft.JSInterop.DotNetDispatcher.BeginInvoke (System.String callId, System.String assemblyName, System.String methodIdentifier, System.Int64 dotNetObjectId, System.String argsJson) <0x3268058 + 0x0009c> in <30781c3ac5104a4783ec7e7411267cbe>:0
at Object.endInvokeDotNetFromJS (http://localhost:52284/_framework/blazor.webassembly.js:1:7057)
at Object.invokeJSFromDotNet (http://localhost:52284/_framework/blazor.webassembly.js:1:6683)
at _mono_wasm_invoke_js_marshalled (http://localhost:52284/_framework/wasm/mono.js:1:176158)
at wasm-function[6316]:382
at wasm-function[1952]:138
at wasm-function[602]:5007
at wasm-function[602]:6744
at wasm-function[602]:6027
at wasm-function[602]:6027
at wasm-function[602]:6744
