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

transport update -> webservice issue

3 Answers 48 Views
Data Source
This is a migrated thread and some comments may be shown as answers.
Bob
Top achievements
Rank 1
Bob asked on 22 Jul 2015, 11:48 PM

Not sure if this is a vb.net or datasource issue but am trying here.

I'm using vb.net and am having an issue when i try to ​send the updated data back to the server. I've found there to be a number of idiosyncrasies with connecting to .net so perhaps this is another one.

When I try to receive the data, it says it the method name isn't valid only when I try to assign the data to a variable. For example ​I'm able to send along a parameter to one function with an Int. And I can call the update function with no receiving parameter, but when I try to send along the data object it fails.

VB.Net code:
Works when accepting an int.
 

 <ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Function GetFullRecords(projectID as Integer) As List(Of fullRecords)
       return loadFullRecords(loadMonths(projectID), loadHeaders(projectID) ,  loadDetails(projectID) )
 End Function

And the broken one works fine if I don't accept anything

<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Function UpdateFullRecords() As String 
   return "​gotData"
End Function 

 

But as soon as I try to accept those records it fails

<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Function UpdateFullRecords(models as List(of fullRecords) ) As String 
   return "​gotData"
End Function 


System.InvalidOperationException: UpdateFullRecords Web Service method name is not valid.

Datasource code:

    dataSource = new kendo.data.DataSource(    {
        transport: {
            read:  {
                url: baseUrl + "gridData.asmx/GetFullRecords",
                type: "POST",
                contentType: "application/json; charset=utf-8",
                headers: {"Accept": "application/json"}
            },
            update: {
                url: baseUrl + "gridData.asmx/UpdateFullRecords",
                type: "POST",
                dataType: "json"
               headers: {"Accept": "application/json"}
            },
            parameterMap: function(options, operation) {
                if(operation === "read")
                    var values = {projectID: 32};
                   return kendo.stringify(values);
                } else if (operation !== "read" && options.models) {
                    console.log("Not Read - " + operation);
                    return{fullRecords:  kendo.stringify(options.models)};
                }
            }
        },
        schema: {
            parse: function (data) {
                return data.d;
            },
            model: {
                id: "headerID",
                fields: mySchemaFields
            }
        }
   });

Attached images from firebug showing that the data looks to be the same.  So not sure why it can find the method in one instance and not the other.

 

3 Answers, 1 is accepted

Sort by
0
Bob
Top achievements
Rank 1
answered on 23 Jul 2015, 04:32 PM

The problem looks like it was revolving around not stringifying the right information in the parameter map.  I made a very simple 2 file example which doesn't do much beyond test sending and receiving data.

 Here is my z_exampleCity.asmx file

<%@ WebService Language="vb"   Class="z_exampleCity" %>
 
Imports System.Web
Imports System.Web.SessionState
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.Web.Script.Services
Imports System.Collections.Generic
Imports System.Linq
 
Public Class City
    Public cityID as Integer
    Public population as Integer
    Public name as String
End Class
 
 
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<ScriptService()> _
Public Class z_exampleCity
    Inherits System.Web.Services.WebService
 
    <System.Web.Services.WebMethod(EnableSession:=True)>  _
    <ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
    Public Function GetCities(numCities as Integer) As List(Of City)
        dim cList as New List(Of City)
        For i = 0 to numCities
            Dim cItem as New City
            cItem.cityID = i
            cItem.name = "City number " + i.ToString()
            cItem.population = i * 1778
            cList.Add(cItem)
        Next i
         
        return cList
    End Function
     
    <System.Web.Services.WebMethod(EnableSession:=True)>  _
    <ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
    Public Function UpdateCities( city as  List(Of City)) As List(Of City)
        dim x as Integer = 11
     
        dim cList as New List(Of City)
        Dim cItem as New City
        cItem.cityID =  x
        cItem.name = "Update number " +  x.ToString()
        cItem.population =  x * 1778 + 111
        cList.Add(cItem)
         
        return cList
    End Function
 
End Class

 And here is the .aspx page

<%@ Page Language="VB" Debug="true" EnableSessionState="True"   AutoEventWireup="false"%>  
<!DOCTYPE HTML>
<html>
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
<link rel="icon" href="favicon.ico" type="image/icon">
<title> </title>
    <link rel="stylesheet" href="./kendo/styles/kendo.common-material.min.css" />
    <link rel="stylesheet" href="./kendo/styles/kendo.material.min.css" />
    <script src="./kendo/js/jquery.min.js"></script>
    <script src="./kendo/js/kendo.all.min.js"></script>
 
<script type="text/javascript">
$(document).ready(function () {
    var columnList = [
        { field: "cityID", title: "cityID"},
        { field: "name", title: "name"},
        { field: "population", title: "population"}
    ];
    var mySchemaFields = {
        cityID: { editable: false},
        name: { editable: false},
        population: { editable: true }
    };
 
    var crudServiceBaseUrl = "./",
    dataSource = new kendo.data.DataSource({
        transport: {
            read:  {
                url: crudServiceBaseUrl + "z_exampleCity.asmx/GetCities",
                type: "POST",
                contentType: "application/json; charset=utf-8",
                headers: {"Accept": "application/json"}
            },
            update: {
                url: crudServiceBaseUrl + "z_exampleCity.asmx/UpdateCities",
                type: "POST",
                dataType: "json",
                contentType: "application/json; charset=utf-8",
                headers: {"Accept": "application/json"}
            },
            parameterMap: function(options, operation) {
                if(operation === "read"){
                    var values = {numCities: 8};  /* Proof that you can send and read simple parameters*/
                    return kendo.stringify(values);
                     
                } else if (operation !== "read" && options.models) {
                    var values = {city: options.models}  /*only strinfigy once on the complete object. /*
                    return  kendo.stringify(values);
                }
            }
        },
        batch: true,
        pageSize: 20,
        schema: {
            parse: function (data) {
                return data.d;
            },
            model: {
                id: "cityID",
                fields: mySchemaFields
            }
        }
    });
     
    $("#grid").kendoGrid({
            dataSource: dataSource,
            editable: true,
            batch: true,
            toolbar: ["save", "cancel"],
            scrollable: true,
            navigatable: true,
            height: 600,
            columns: columnList
    });
});
</script>
</head>
<body>
    <div id="grid"></div>
</body>
</html>

0
Bob
Top achievements
Rank 1
answered on 23 Jul 2015, 04:34 PM
Issue is resolved - don't see a way to edit prior posts or the title to make it clear.
0
Alexander Valchev
Telerik team
answered on 24 Jul 2015, 09:04 AM
Hello Bob,

I am glad to hear that you managed to resolve the issue. I will mark this thread as resolved and will close it.

Regards,
Alexander Valchev
Telerik
 
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI now!
 
Tags
Data Source
Asked by
Bob
Top achievements
Rank 1
Answers by
Bob
Top achievements
Rank 1
Alexander Valchev
Telerik team
Share this question
or