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Kendo Grid bind with WCF Data

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Grid

This is a migrated thread and some comments may be shown as answers.

Nishant asked on 05 Mar 2013, 02:25 PM

Hi,

I am doing a POC for one of the project where I am required to show data in KendoUI Grid coming from WCF service.

I've tried to create a sample but seems like no luck.

I looked around but couldn't figure out exact working sample. I've created a sample application. In Default.aspx page I am trying to get data from a WCF service i.e. HTML5Service.svc residing withing the same project.

A simple call to service is done as shown below

../HTML5Service.svc/list

When I make a call using simple HTMl5.html page it gets called. But when I am trying to make a call through kendoGrid's datasource it's not getting called.

<!DOCTYPE html>

<html>

<head>

<title> Hello Kendo UI</title>

<link href="Content/kendo/2012.3.1114/kendo.common.min.css" rel="stylesheet" />

<link href="Content/kendo/2012.3.1114/kendo.default.min.css" rel="stylesheet" />

</head>

<body>

<div id="employeesGrid"></div>

<script src="Scripts/jquery-1.8.3.min.js"></script>

<script src="Scripts/kendo/2012.3.1114/kendo.web.min.js"></script>

<script>

$(function () {

$("#employeesGrid").kendoGrid({

dataSource: new kendo.data.DataSource({

transport: {

read: "../HTML5Service.svc/list"

}

})

});

</script>

</body>

</html>

A quick help will be highly appreciated. Since it help us to use kendoUI or not as our most of the business is dependent on WCF service.

Thanks!!

3 Answers, 1 is accepted

answered on 08 Mar 2013, 01:36 AM

Hi Rosen,

I tried to run the code but I got an exception in QueryableExtnesions.cs file under ToDataSourceResult<T> . Execption details are as follow:

System.Data.EntityException was unhandled by user code

Message=The underlying provider failed on Open.

Source=System.Data.Entity

StackTrace:

at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)

at System.Data.EntityClient.EntityConnection.Open()

at System.Data.Objects.ObjectContext.EnsureConnection()

at System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)

at System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator()

at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)

at System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__3[TResult](IEnumerable`1 sequence)

at System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)

at System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[S](Expression expression)

at System.Linq.Queryable.Count[TSource](IQueryable`1 source)

at QueryableExtensions.ToDataSourceResult[T](IQueryable`1 queryable, Int32 take, Int32 skip, IEnumerable`1 sort, Filter filter) in c:\Documents and Settings\nishantrana\My Documents\Downloads\KendoWCFGrid\App_Code\QueryableExtensions.cs:line 24

at Products.Read(Int32 skip, Int32 take, IEnumerable`1 sort, Filter filter) in c:\Documents and Settings\nishantrana\My Documents\Downloads\KendoWCFGrid\App_Code\Products.cs:line 75

at SyncInvokeRead(Object , Object[] , Object[] )

at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)

at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)

InnerException: System.Data.SqlClient.SqlException

Message=Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.

Source=.Net SqlClient Data Provider

ErrorCode=-2146232060

Class=14

LineNumber=65536

Number=15372

Procedure=""

Server=.\SQLEXPRESS

State=1

StackTrace:

at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)

at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()

at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)

at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)

at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject)

at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout)

at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)

at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)

at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)

at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)

at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)

at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)

at System.Data.SqlClient.SqlConnection.Open()

at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)

InnerException:

Plz do let me know if I've missed something.

Thanks and Regards
Nishant Rana