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RadAutoCompleteBox works on localhost but not when published.

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AutoCompleteBox

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

John asked on 16 Oct 2012, 10:37 AM

I have a project with RadAutoCompleteBox and every thing works fine on my localhost, but when I upload it the page doesn't crash but the drop down doesn't appear at all but yet it works fine on my computer.

I have the RadAutoCompleteBox binded to a web service.

When I go to the web service page online I get the following error.

Cannot serialize member Telerik.Web.UI.AutoCompleteBoxData.Context of type System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Object, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], because it implements IDictionary.

Here is my code in the web service.

using ClassLibrary;

// uses the class library

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Telerik.Web.UI.AutoCompleteBox;

using System.Web.Services;

using Telerik.Web.UI;

using System.Data;

using System.Data.SqlClient;

using System.Configuration;

//using System.Collections;

//using System.Runtime.Serialization;

//using System.Runtime.Serialization.Formatters.Binary;

namespace ReportsViewer.Services

{

/// <summary>

/// Web service for telerik autocompletebox

/// </summary>

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.ComponentModel.ToolboxItem(false)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

[System.Web.Script.Services.ScriptService]

public class StaffWebService : System.Web.Services.WebService

{

string QueryData {get; set;}

string AcademicYear { get; set; }

[WebMethod(EnableSession = true)]

public AutoCompleteBoxData GetStaffNames(object context)

{

//Orignal code

//QueryData = context["Text"].ToString();

//var AcademicYear = Session["AcademicYear"];

//Testing code

string QueryData = ((IDictionary<string, object>)context)["Text"].ToString();

var AcademicYear = Session["AcademicYear"];

using (SqlConnection cn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["Connect"].ConnectionString))

{

cn.Open();

using (SqlCommand cm = cn.CreateCommand())

{

cm.CommandText = "sql stuff";

cm.Parameters.AddWithValue("@QueryData", QueryData);

cm.Parameters.AddWithValue("@AcademicPeriod", AcademicYear);

using (SqlDataAdapter objAdpt = new SqlDataAdapter())

{

objAdpt.SelectCommand = cm;

using (DataTable dt = new DataTable())

{

objAdpt.Fill(dt);

dt.DefaultView.Sort = "Name";

List<AutoCompleteBoxItemData> result = new List<AutoCompleteBoxItemData>();

AutoCompleteBoxData dropDownData = new AutoCompleteBoxData();

result = new List<AutoCompleteBoxItemData>();

for (int i = 0; i < dt.Rows.Count; i++)

{

AutoCompleteBoxItemData itemData = new AutoCompleteBoxItemData();

itemData.Text = dt.Rows[i]["Name"].ToString();

itemData.Value = dt.Rows[i]["WINDOWS_USER_ID"].ToString();

result.Add(itemData);

}

dropDownData.Items = result.ToArray();

return dropDownData;

}

}//end of class

}//end of namespace

Cheers

John Moore

14 Answers, 1 is accepted

answered on 18 Oct 2012, 01:51 PM

After 5 days of this problem doing my head in and have tried everything I went to the telerik tab in visual studio and went to
RadControls for asp.net AJAX and went to the upgrade wizard because I was bored.

Published the site and guess what it worked on webhost even thou if I go to the web service directly it doesn't work and says about Idictionary.

The type Telerik.Web.UI.RadAutoCompleteContext is not supported because it implements IDictionary.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NotSupportedException: The type Telerik.Web.UI.RadAutoCompleteContext is not supported because it implements IDictionary.

Source Error:
[NotSupportedException: The type Telerik.Web.UI.RadAutoCompleteContext is not supported because it implements IDictionary.]
   System.Xml.Serialization.TypeScope.GetDefaultIndexer(Type type, String memberInfo) +5529598
   System.Xml.Serialization.TypeScope.ImportTypeDesc(Type type, MemberInfo memberInfo, Boolean directReference) +885
   System.Xml.Serialization.TypeScope.GetTypeDesc(Type type, MemberInfo source, Boolean directReference, Boolean throwOnError) +153
   System.Xml.Serialization.XmlReflectionImporter.ImportMemberMapping(XmlReflectionMember xmlReflectionMember, String ns, XmlReflectionMember[] xmlReflectionMembers, Boolean rpc, Boolean openModel, RecursionLimiter limiter) +73
   System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(XmlReflectionMember[] xmlReflectionMembers, String ns, Boolean hasWrapperElement, Boolean rpc, Boolean openModel, RecursionLimiter limiter) +286

This must be a major problem with this control connected to a webservice.

answered on 18 Oct 2012, 02:26 PM

WebServiceTest.zip

Hello John,

The issue that you describe is quite strange.
Populating the RadAutoCompleteBox with data via WebService works properly on our online demo here.

I simplified your web service implementation and prepared a very basic sample – could you please download it and test it on your side?

Maybe there is something specific in your project (or implementation) that causes the issue?
I believe that a working sample on your side will help you to find it.

Regards,
Kalina
the Telerik team

If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.

answered on 10 Jan 2017, 11:54 PM

Without knowing as much as Telerik about their control I can only surmise from what one poster is saying is that when you try and attach to your webservice it, auto.., can't use the data because its implements a dictionary object.

My first guess is that your webservice is not providing you the two pieces of data to create a dictionary object which is what it needs. If you look at the auto box you have to give it a value and text field. If your WS only returns one it will fail.

Create a class that takes two pieces of data. One a integer for a counter and the other a string for your data. When you grab the data JSON or XML add it to your class. As you loop the WS data increment a counter. Now you have a object, you can attach to your autocomplete box with both pieces of information that it needs. Make sure to set the text/value fields on the autobox to whatever you called them in your class.

Don't know if that works without testing it but I see no reason why it wouldn't.