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Get the following error "Provider name cannot be null or empty."

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Scheduler

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

Faifal asked on 06 Feb 2012, 08:32 AM

I am getting the following error when I run a web page using RadScheduler Custom Provider:

Provider name cannot be null or empty.

I placed in the web config exactly what is supplied in the demo as well as examples posted on the site and I am still getting the above error.

Here is what is within my web.config:

<?xml version="1.0"?> 

<configuration> 

<configSections> 

<sectionGroup name="telerik.web.ui"> 

<section name="radScheduler" type="Telerik.Web.UI.RadSchedulerConfigurationSection, Telerik.Web.UI, PublicKeyToken=121fae78165ba3d4" allowDefinition="MachineToApplication"/> 

</sectionGroup> 

</configSections> 

<telerik.web.ui> 

<radScheduler defaultAppointmentProvider="Integrated"> 

<appointmentProviders> 

<add name="ClassSchedSchedulerData" type="Scheduler3.RDSchedulerProvider" persistChanges="false"/> 

</appointmentProviders> 

</radScheduler> 

</telerik.web.ui> 

<appSettings> 

<add key="Telerik.ScriptManager.TelerikCdn" value="Disabled"/> 

<add key="Telerik.StyleSheetManager.TelerikCdn" value="Disabled"/> 

</appSettings> 

<system.web> 

<compilation debug="true" targetFramework="4.0"> 

<assemblies> 

<add assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 

<add assembly="System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/> 

<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.Xml.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.Data.DataSetExtensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/> 

<add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> 

</assemblies> 

</compilation> 

<pages> 

<controls> 

<add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI"/> 

</controls> 

</pages> 

<httpHandlers> 

<add path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" validate="false"/> 

<add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/> 

<add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/> 

<add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false"/> 

<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/> 

</httpHandlers> 

<httpModules/> 

</system.web> 

<system.webServer> 

<validation validateIntegratedModeConfiguration="false"/> 

<modules runAllManagedModulesForAllRequests="true"/> 

<handlers> 

<remove name="ChartImage_axd"/> 

<add name="ChartImage_axd" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" preCondition="integratedMode"/> 

<remove name="Telerik_Web_UI_SpellCheckHandler_axd"/> 

<add name="Telerik_Web_UI_SpellCheckHandler_axd" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" preCondition="integratedMode"/> 

<remove name="Telerik_Web_UI_DialogHandler_aspx"/> 

<add name="Telerik_Web_UI_DialogHandler_aspx" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode"/> 

<remove name="Telerik_RadUploadProgressHandler_ashx"/> 

<add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode"/> 

<remove name="Telerik_Web_UI_WebResource_axd"/> 

<add name="Telerik_Web_UI_WebResource_axd" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode"/> 

</handlers> 

</system.webServer> 

</configuration> 

This is the following code within my provider:

using System; 

using System.Collections.Generic; 

using System.Linq; 

using System.Web; 

using Telerik.Web.UI; 

using System.Data; 

using SchedEZ.DataAccess; 

using SchedEZ.Utilities; 

 

namespace Scheduler3 

{ 

public class RDSchedulerProvider : SchedulerProviderBase 

{ 

 

#region Declarations 

 

private IDictionary<int, Resource> _staff; 

private IDictionary<int, Resource> _students; 

private IDictionary<int, Resource> _equipments; 

private IDictionary<int, Resource> _buildingRooms; 

 

private Boolean _persistChanges = false; 

 

public enum eResourceType 

{ 

BuildingRoom = 0, 

Staff = 1, 

Equipment = 2, 

Student = 3 

} 

 

#endregion 

 

#region Properties 

 

#endregion 

 

#region General Code 

 

public override void Initialize(string name, System.Collections.Specialized.NameValueCollection config) 

{ 

if (config == null) 

{ 

throw new ArgumentNullException("config"); 

} 

 

string persistChanges = config["persistChanges"]; 

if (!string.IsNullOrEmpty(persistChanges)) 

{ 

if (!bool.TryParse(persistChanges, out _persistChanges)) 

{ 

throw new Exception("Invalid value for PersistChanges attribute. Use 'True' or 'False'."); 

} 

else 

{ 

_persistChanges = true; 

} 

 

} 

 

public override IDictionary<ResourceType, IEnumerable<Resource>> GetResources(ISchedulerInfo schedulerInfo) 

{ 

Dictionary<ResourceType, IEnumerable<Resource>> resCollection = new Dictionary<ResourceType, IEnumerable<Resource>>(); 

 

var myInfo = schedulerInfo as RDSchedulerInfo; 

int classSchedID = myInfo.ClassSchedID; 

 

// load the resources 

if (_staff == null) 

_staff = ResourceStaff.loadResources(classSchedID); 

 

if (_equipments == null) 

_equipments = ResourceEquipment.loadResources(classSchedID); 

 

if (_students == null) 

_students = ResourceStudent.loadResources(classSchedID); 

 

if (_buildingRooms == null) 

_buildingRooms = ResourceBuildingRoom.loadResources(classSchedID); 

 

resCollection.Add(new ResourceType(Enum.GetName(typeof(eResourceType), eResourceType.Staff), true), _staff.Values); 

resCollection.Add(new ResourceType(Enum.GetName(typeof(eResourceType), eResourceType.Student), true), _students.Values);<

br>

resCollection.Add(new ResourceType(Enum.GetName(typeof(eResourceType), eResourceType.BuildingRoom), false), _buildingRooms.Values);<

br>

resCollection.Add(new ResourceType(Enum.GetName(typeof(eResourceType), eResourceType.Equipment), true), _equipments.Values);<

br>

 

return resCollection; 

} 

 

public override IEnumerable<Appointment> GetAppointments(ISchedulerInfo schedulerInfo) 

{ 

var myInfo = schedulerInfo as RDSchedulerInfo; 

int classSchedID = myInfo.ClassSchedID; 

 

List<Appointment> appointments = new List<Appointment>(); 

 

DataSet ds = ClassSchedWeekDayTime.getDataView_ByClassSchedID(classSchedID); 

 

if (!ds.IsEmpty()) 

{ 

foreach(DataRow dr in ds.Tables[0].Rows) 

{ 

// create an appointment based on the data collected 

Appointment appt = ClassSchedule.addAppointment(dr); 

 

// load resources 

LoadResources(appt); 

 

// add to the appointments list 

appointments.Add(appt); 

} 

 

} 

 

return appointments; 

} 

 

private void LoadResources(Appointment apt) 

{ 

// set the resource for each type 

 

//Student 

// students will be in every class schedule 

foreach (KeyValuePair<int, Resource> res in _students) 

apt.Resources.Add(res.Value); 

 

//Staff 

List<Staff> sf = ResourceStaff.FindByID(apt.ID.toInt()); 

if (!sf.IsEmpty()) 

{ 

foreach (Staff itm in sf) 

apt.Resources.Add(_staff[itm.StaffId]); 

} 

 

//Equipment 

List<Equipment> eq = ResourceEquipment.FindByID(apt.ID.toInt()); 

if (!eq.IsEmpty()) 

{ 

foreach (Equipment itm in eq) 

apt.Resources.Add(_equipments[itm.EquipmentId]); 

} 

 

//Equipment 

List<BuildingRoom> br = ResourceBuildingRoom.FindByID(apt.ID.toInt()); 

if (!br.IsEmpty()) 

{ 

foreach (BuildingRoom itm in br) 

apt.Resources.Add(_buildingRooms[itm.BuildingRoomID]); 

} 

 

} 

 

public override void Insert(ISchedulerInfo schedulerInfo, Appointment appointmentToInsert) 

{ 

base.Insert(schedulerInfo, appointmentToInsert); 

} 

 

public override void Update(ISchedulerInfo schedulerInfo, Appointment appointmentToUpdate) 

{ 

base.Update(schedulerInfo, appointmentToUpdate); 

} 

 

public override void Delete(ISchedulerInfo schedulerInfo, Appointment appointmentToDelete) 

{ 

base.Delete(schedulerInfo, appointmentToDelete); 

} 

 

#endregion 

} 

 

} 

I really need help with this. A quick response to my issue would be greatly appreciated...

thanks in advance

Get the following error "Provider name cannot be null or empty."

2 Answers, 1 is accepted