While I tried to fetch data from a JSON am only able to return the first object.
I had mentioned the statement which I think the issue is. I want to return all the available object from the JSON so that I shall display it in a list of cards. I need to return all the JSON objects and pass it to another page containing list of cards. If anyone knows the solution please help me fix it.
Thanks in advance.
import 'dart: convert';
import 'package:flutter/cupertino.dart';
import 'package:tts/tts.dart';
import 'package:wiizboo/service/Chatmsg_service.dart';
import 'package:wiizboo/widget/a%20copy.dart';
import 'package:wiizboo/widget/chat_in_message.dart';
import 'package:wiizboo/widget/chat_out_message.dart';
import 'package:wiizboo/widget/form.dart';
import 'package:wiizboo/widget/image_camera.dart';
import 'package:wiizboo/widget/image_gallery.dart';
class ChatMessageModel with ChangeNotifier {
String data;
List accntdet;
ChatmessageService chatservice = ChatmessageService();
List<Widget> messages = <Widget>[];
ChatMessageModel() {
sendMsg("Hi");
}
Future handlesubmission(String chattext) {
Widget message = new ChatInMessage(
text: chattext,
name: "Me",
type: true,
);
addMsg(message);
sendMsg(chattext);
}
addMsg(Widget msg) {
messages.insert(0, msg);
notifyListeners();
}
sendMsg(String msg) {
chatservice.SendMsg(msg).then((String msg) {
responseBuilder(msg);
});
}
responseBuilder(String msg) {
Widget message;
String identifier = '';
var arr = msg.split("~");
if (arr.length > 1) {
identifier = arr[0];
msg = arr[1];
} else {
msg = arr[0];
}
switch (identifier) {
case 'email_phone':
message = new Forms(onSubmitted: (String val) {
Widget a = new ChatInMessage(
text: val,
name: "Me",
type: true,
);
addMsg(a);
sendMsg(val);
});
break;
case 'selfie':
message = new ImageCamera(onSubmitted: (String imageres) {
Widget b = new ChatInMessage(
text: imageres,
name: "Me",
type: true,
);
sendMsg(imageres);
});
break;
case 'aadhar':
message = new ImageGalery(onSubmitted: (String imageres) {
Widget b = new ChatInMessage(
text: imageres,
name: "Me",
type: true,
);
sendMsg(imageres);
});
break;
case 'account_info':
print(msg);
data = msg;
String receivedJson = data;
List<dynamic> list = json.decode(receivedJson);
accntdet = list;
int l = list.length;
print(l);
//------------ the statement --------//
for (dynamic account in accntdet) {
message = new AccountInfo(
l: l,
iban: account['ibn_no'],
accno: account['account_no'],
sort: account['sort-code'],
currency: account['currency'],
);
}
//----------//
print(message);
break;
default:
message = new ChatOutMessage(
text: msg,
name: "WzBoo..",
);
Tts.speak(msg);
}
addMsg(message);
}
}
Change this bloc
class ChatMessageModel with ChangeNotifier {
String data;
List accntdet;
ChatmessageService chatservice = ChatmessageService();
List<Widget> messages = <Widget>[];
ChatMessageModel() {
sendMsg("Hi");
}
Future handlesubmission(String chattext) {
Widget message = new ChatInMessage(
text: chattext,
name: "Me",
type: true,
);
addMsg(message);
sendMsg(chattext);
}
addMsg(Widget msg) {
messages.insert(0, msg);
notifyListeners();
}
sendMsg(String msg) {
chatservice.SendMsg(msg).then((String msg) {
responseBuilder(msg);
});
}
responseBuilder(String msg) {
Widget message;
String identifier = '';
var arr = msg.split("~");
if (arr.length > 1) {
identifier = arr[0];
msg = arr[1];
} else {
msg = arr[0];
}
switch (identifier) {
case 'email_phone':
message = new Forms(onSubmitted: (String val) {
Widget a = new ChatInMessage(
text: val,
name: "Me",
type: true,
);
addMsg(a);
sendMsg(val);
});
break;
case 'selfie':
message = new ImageCamera(onSubmitted: (String imageres) {
Widget b = new ChatInMessage(
text: imageres,
name: "Me",
type: true,
);
sendMsg(imageres);
});
addMsg(message);
break;
case 'aadhar':
message = new ImageGalery(onSubmitted: (String imageres) {
Widget b = new ChatInMessage(
text: imageres,
name: "Me",
type: true,
);
sendMsg(imageres);
});
break;
case 'account_info':
print(msg);
data = msg;
String receivedJson = data;
List<dynamic> list = json.decode(receivedJson);
accntdet = list;
int l = list.length;
print(l);
//------------ the statement --------//
for (dynamic account in accntdet) {
message = new AccountInfo(
l: l,
iban: account['ibn_no'],
accno: account['account_no'],
sort: account['sort-code'],
currency: account['currency'],
);
print(message);
addMsg(message);
}
//----------//
break;
default:
message = new ChatOutMessage(
text: msg,
name: "WzBoo..",
);
Tts.speak(msg);
addMsg(message);
}
}
}
I want to pass json data to jsp and populate into the charts data. How can i do this?
Previously i am setting data value by sending each value using model attribute.
In EmployeeController i have lineBarChart method like this :-
#RequestMapping("/lineBar")
public String lineBarChart(Model model)
{
List<Employee> emp = employeeMapper.getAllEmployees();
int cseCount = 0;
int ecCount = 0;
int itCount = 0;
int cseSalary = 0;
int ecSalary = 0;
int itSalary = 0;
for (int j = 0; j < emp.size(); j++)
{
if (emp.get(j).getDepartment().equalsIgnoreCase("CSE"))
{
cseSalary += emp.get(j).getSalary();
cseCount++;
}
else if (emp.get(j).getDepartment().equalsIgnoreCase("IT"))
{
itSalary += emp.get(j).getSalary();
itCount++;
}
else
{
ecSalary += emp.get(j).getSalary();
ecCount++;
}
}
Map<Integer, Integer> map = new HashMap<>();
map.put(cseCount, cseSalary);
map.put(ecCount, ecSalary);
map.put(itCount, itSalary);
GsonBuilder gsonMapBuilder = new GsonBuilder();
Gson gsonObject = gsonMapBuilder.create();
String jsonObject = gsonObject.toJson(map);
System.out.println(jsonObject);
// Previously i am doing this now i want to send json to chart
model.addAttribute("cse", cseCount);
model.addAttribute("ec", ecCount);
model.addAttribute("it", itCount);
model.addAttribute("cseSalary", cseSalary);
model.addAttribute("itSalary", itSalary);
model.addAttribute("ecSalary", ecSalary);
return "lineBarChart";
}
Here is lineBarChart.jsp :-
<script>
$(function()
{
var lineBarChart = new CanvasJS.Chart("lineBarChartContainer",
{
animationEnabled: true,
theme: "light2",
title:
{
text: "Branch wise total Employee Salary",
fontSize: 20,
fontFamily: "Trebuchet MS",
fontWeight: "bold",
margin: 10
},
axisY:
{
title: "Number of Employee",
suffix: " K"
},
data:
[{
type: "column",
dataPoints:
[
{ y: ${cse}, label: "CSE" },
{ y: ${ec}, label: "EC" },
{ y: ${it}, label: "IT" }
]
},
{
type: "line",
toolTipContent: "{label}: {y}K",
showInLegend: true,
dataPoints:
[
{ y: ${cseSalary}/10000, label: "CSE" },
{ y: ${ecSalary}/10000, label: "EC" },
{ y: ${itSalary}/10000, label: "IT" }
]
}]
});
lineBarChart.render();
});
</script>
<div class="card shadow p-3 bg-white rounded">
<div class="card-body">
<div id="lineBarChartContainer" style="height: 240px; width: 100%;"></div>
</div>
</div>
I am calling lineBarChart.jsp file from another jsp using ajax call.
Like this :-
<div class="row" >
<div class="col-md-6 p-1">
<div id="lineBarGraph"></div>
</div>
</div>
$.ajax({url: "lineBar",
async: false,
success: function(result)
{
console.log(result);
$("#lineBarGraph").html(result);
}
});
You will need to create a 2nd handler method or controller.
The existing controller will simply load the JSP so all the logic can be removed from that. The new controller method will have the logic to load and return the data requested by your Ajax call and will look like the below.
Note the #ResponseBody annotation.
Update you Ajax call to request the new path fetchChartDataor whatever you want it to be:
#RequestMapping("/fetchChartData", produces="application/json")
public #ResponseBody String getChartData()
{
List<Employee> emp = employeeMapper.getAllEmployees();
int cseCount = 0;
int ecCount = 0;
int itCount = 0;
int cseSalary = 0;
int ecSalary = 0;
int itSalary = 0;
for (int j = 0; j < emp.size(); j++)
{
if (emp.get(j).getDepartment().equalsIgnoreCase("CSE"))
{
cseSalary += emp.get(j).getSalary();
cseCount++;
}
else if (emp.get(j).getDepartment().equalsIgnoreCase("IT"))
{
itSalary += emp.get(j).getSalary();
itCount++;
}
else
{
ecSalary += emp.get(j).getSalary();
ecCount++;
}
}
Map<Integer, Integer> map = new HashMap<>();
map.put(cseCount, cseSalary);
map.put(ecCount, ecSalary);
map.put(itCount, itSalary);
//you could remove the below and return the map directly
GsonBuilder gsonMapBuilder = new GsonBuilder();
Gson gsonObject = gsonMapBuilder.create();
return gsonObject.toJson(map);
}
You could simplify further by changing the method return type to Map<Integer, Integer> and return this directly. Spring Boot will handle the serialization to Json using the configured Json library:
https://www.callicoder.com/configuring-spring-boot-to-use-gson-instead-of-jackson/
I am trying to follow this example
and I have the following in JSP page
(getData.jsp)
Department t = new Department ();
String query = request.getParameter("q");
List<String> tenders = t.getDepartments(query);
Iterator<String> iterator = tenders.iterator();
while(iterator.hasNext()) {
String deptName= (String)iterator.next();
String depto = (String)iterator.next();
out.println(deptName);
}
How can I use the above to use in Jquery autcomplete? When I tried there was no output coming.
My Jquery autoComplete code
<script>
$(function() {
$( "#dept" ).autocomplete({
source: function( request, response ) {
$.ajax({
url: "getData.jsp",
dataType: "jsonp",
data: {
featureClass: "P",
style: "full",
maxRows: 12,
name_startsWith: request.term
},
success: function( data ) {
response( $.map( data.<??>, function( item ) {
return {
label: item.name + (item.<??> ? ", " + item.<??> : "") + ", " + item.<??>,
value: item.name
}
}));
}
});
},
minLength: 2,
select: function( event, ui ) {
alert(ui.item.label);
}
});
});
</script>
Is your response in JSON format?
Here's what I do when I use Jquery UI Autocomplete:
Create a class whose parameters are the ones you will use when you say item.name
public string Pam1{ get; set; }
public string Pam2{ get; set; }
public string Pam3{ get; set; }
public SomeResponse(string SomePam)
{
// Pam1 = ???
// Pam2 = ???
// Pam3 = ???
}
In your handler:
context.Response.ContentType = "application/json";
string query = (string)context.Request.QueryString["query"];
var json = new JavaScriptSerializer();
context.Response.Write(
json.Serialize(new SomeResponse(query))
);
context.Response.Flush();
context.Response.End();
EDIT
The javascript (Here is an example where the user can choose more than one option, separated by coma. If you don't want that, remove it.) txt_autocomplete is the class of the TextBox.
$(function () {
function split(val) {
return val.split(/,\s*/);
}
function extractLast(term) {
return split(term).pop();
}
$(".txt_autocomplete")
// don't navigate away from the field on tab when selecting an item
.bind("keydown", function (event) {
if (event.keyCode === $.ui.keyCode.TAB &&
$(this).data("ui-autocomplete").menu.active) {
event.preventDefault();
}
})
.autocomplete({
source: function (request, response) {
$.getJSON("handlers/autocomplete.ashx?query=" + extractLast(request.term), {
term: extractLast(request.term)
}, response);
},
search: function () {
var term = extractLast(this.value);
if (term.length < 2) {
return false;
}
},
focus: function () {
return false;
},
select: function (event, ui) {
var terms = split(this.value);
terms.pop();
terms.push(ui.item.Pam1);
terms.push("");
this.value = terms.join(", ");
console.log("Pam1 is :" + ui.item.Pam1 + " Pam2 is: " + ui.item.Pam2 + " Pam 3 is : " + ui.item.Pam3);
return false;
}
});
});
I'm using ExtJS4 to develop some rich interfaces. I'm a beginner with ExtJS and I i have some problems. I have 100 records and I want to show 20 records per page. I have done this code, but its only showing 20 recording in all pages. I have verified in firebug if I have all my data: I have only 20 and my Total is equal to 100. I need help please.
Webservice page:
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[ScriptService]
public class Service : System.Web.Services.WebService
{
public class DataGridSource
{
public List<MyDvpt> maListe = new List<MyDvpt>();
private int _total;
public int Total
{
get { return _total; }
set { _total = value; }
}
}
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true, XmlSerializeString = false)]
public DataGridSource GetMyDvpt3(int pageSize, int pageNumber)
{
string connectionString = "Data source=DARWIN;Initial Catalog=AGREO_DVPT;User ID=temp;Password=pmet";
SqlConnection connection = new SqlConnection(connectionString);
SqlCommand command = new SqlCommand("SELECT TOP 100 E.NOM_EXP,ESP.NOM_ESP,V.NOM_VAR,P.SURF_PG,P.DD_CYCLE_PROD from gc.PG P inner join ADM.EXP E on E.ID_EXP = P.ID_EXP inner join GC.VAR V on V.ID_VAR = P.ID_VAR inner join GC.ESP ESP on ESP.ID_ESP = V.ID_ESP", connection);
connection.Open();
SqlDataReader reader = command.ExecuteReader();
List<MyDvpt> list1 = new List<MyDvpt>();
while (reader.Read())
{
MyDvpt dev = new MyDvpt();
dev.NOM_EXP = reader[0].ToString();
dev.NOM_ESP = reader[1].ToString();
dev.NOM_VAR = reader[2].ToString();
dev.SURF_PG = reader[3].ToString();
dev.DD_CYCLE_PROD = reader[4].ToString();
list1.Add(dev);
}
return new DataGridSource { maListe = list1.Skip(pageSize * pageNumber).Take(pageSize).ToList<MyDvpt>(), Total = list1.Count };
}
public class MyDvpt
{
public string NOM_EXP { get; set; }
public string NOM_ESP { get; set; }
public string NOM_VAR { get; set; }
public string SURF_PG { get; set; }
public string DD_CYCLE_PROD { get; set; }
private string _total;
public string Total
{
get { return _total; }
set { _total = value; }
}
}
}
JS page:
function onReady() {
store = new Ext.data.JsonStore({
autoLoad: true,
pageSize: 20,
pageNumber: 1,
groupField: 'NOM_VAR',
proxy: ({
type: 'ajax',
url: '../Service.asmx/GetMyDvpt3?pageSize=20 &pageNumber=1',
reader: {
type: 'json',
root: 'd.maListe',
totalProperty: 'd.Total'
},
headers: {
'Content-type': 'application/json'
}
}),
fields: ['NOM_EXP', 'NOM_ESP', 'NOM_VAR', 'SURF_PG', 'DD_CYCLE_PROD']
});
store.loadPage(1);
var groupingFeature = Ext.create('Ext.grid.feature.Grouping', {
groupHeaderTpl: 'NOM_VAR: {NOM_ESP} ({rows.length} enregistrement{[values.rows.length > 1 ? "s" : ""]})'
});
Ext.create('Ext.grid.Panel', {
store: store,
id:'grid',
collapsible: true,
frame: true,
iconCls: 'icon-grid',
features: [groupingFeature],
columnLines: true,
columns: [
{ dataIndex: 'NOM_EXP', header: 'NOM_EXP', flex: 1 },
{ dataIndex: 'NOM_ESP', header: 'NOM_ESP', flex: 1 },
{ dataIndex: 'NOM_VAR', header: 'NOM_VAR', flex: 1 },
{ dataIndex: 'SURF_PG', header: 'SURF_PG', flex: 1 },
{ dataIndex: 'DD_CYCLE_PROD', header: 'DD_CYCLE_PROD', flex: 1 }
],
fbar: ['->', {
text: 'Clear Grouping',
iconCls: 'icon-clear-group',
handler: function () {
groupingFeature.disable();
}
}],
renderTo: 'panel',
viewConfig: {
stripeRows: true
},
title: 'Dvpt Grid',
width: 1220,
height: 500,
dockedItems: [{
xtype: 'pagingtoolbar',
store: store,
dock: 'bottom',
displayInfo: true
}]
});
}
store.load() response in firebug:
GET http://localhost:1508/Service.asmx/GetMyDvpt3?pa...22NOM_VAR%22%2C%22direction%22%3A%22ASC%22%7D%5D
{"d":{"_type":"MaquetteExtJs.Service+DataGridSource","maListe":[{"_type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"AMBRAL","SURF_PG":"30000","DD_CYCLE_PROD":"26/02/2003 00:00:00","Total":null},
...
{"__type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"SOLDUR","SURF_PG":"25000","DD_CYCLE_PROD":"06/03/2002 00:00:00","Total":null}],"Total":"100"}}
d Object { __type="MaquetteExtJs.Service+DataGridSource", maListe=[20], Total="100"}
Currently your response is like this...
{"d":{"_type":"MaquetteExtJs.Service+DataGridSource","maListe":[{"_type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"AMBRAL","SURF_PG":"30000","DD_CYCLE_PROD":"26/02/2003 00:00:00","Total":null}, ... {"__type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"SOLDUR","SURF_PG":"25000","DD_CYCLE_PROD":"06/03/2002 00:00:00","Total":null}],"Total":"100"}}
But it should be like this...
{"_type":"MaquetteExtJs.Service+DataGridSource","maListe":[{"_type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"AMBRAL","SURF_PG":"30000","DD_CYCLE_PROD":"26/02/2003 00:00:00","Total":null}, ... {"__type":"MaquetteExtJs.Service+MyDvpt","NOM_EXP":"DECKERT","NOM_ESP":"Blé Dur Hiver","NOM_VAR":"SOLDUR","SURF_PG":"25000","DD_CYCLE_PROD":"06/03/2002 00:00:00","Total":null}],"Total":"100"}
Also you need to update your JsonReader config in your JsonStore..
proxy: ({
type: 'ajax',
url: '../Service.asmx/GetMyDvpt3?pageSize=20 &pageNumber=1',
reader: {
type: 'json',
root: 'maListe',
totalProperty: 'Total'
}
}),
Try keeping old json response and store root property (root: 'd.maListe') and modify the totalProperty : 'Total'
Ohoy there!
I've been struggling with this problem for days, and I'm really starting to loose my temper about this!
I had managed to get informations parsed back to the grid, which can be sorted, but when I'm trying filtering the results, it gets a little bit messy..
I have been programming C# for about 4-5 months, but my Web Forms, Javascript and JQuery (including JSON) is only about 14 days or so, so maybe it's something very basics I do wrong - please be!!
First, I'm wondering if this is the correct JSON-syntax?
{"grid":{"_search":true,"nd":1291150141196,"rows":20,"page":1,"sidx":"Name","sord":"asc","filters":"{\"groupOp\":\"AND\",\"rules\":[{\"field\":\"Phone\",\"op\":\"eq\",\"data\":\"2343444\"}]}"}}
Those backslashes seems incorrect to me, and I've tried filtering them at server side, but no luck - again, only 14 days of experience.
Error message:
"System.InvalidOperationException"
"Cannot convert object of type 'System.String' to type 'Filter'"
" at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Serialization.ObjectConverter.AssignToPropertyOrField(Object propertyValue, Object o, String memberName, JavaScriptSerializer serializer, Boolean throwOnError)\r\n at System.Web.Script.Serialization.ObjectConverter.ConvertDictionaryToObject(IDictionary`2 dictionary, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Services.WebServiceMethodData.StrongTypeParameters(IDictionary`2 rawParams)\r\n at System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters)\r\n at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)"
My WebMethod:
[WebMethod]
[ScriptMethod]
public string GetAll(GridSettings grid) {
var query = from p in dc.Customers select p;
//if (grid._search)
// if (grid.filters.groupOp == "AND")
// {
// foreach (var rule in grid.filters.Rules)
// query = query.Where<Customers>(rule.field, rule.data, rule.oper);
// }
// else if (grid.filters.groupOp == "OR")
// {
// var temp = (new List<Customers>()).AsQueryable();
// foreach (var rule in grid.filters.Rules)
// {
// var t = query.Where<Customers>(rule.field, rule.data, rule.oper);
// temp = temp.Concat<Customers>(t);
// }
// query = temp.Distinct<Customers>();
// }
query = query.OrderBy<Customers>(grid.sidx, grid.sord);
List<Customer> result = new List<Customer>();
foreach (var x in query)
{
Customer y = new Customer();
y.Phone = x.Phone;
y.Name = x.Name;
y.Address = x.Address;
y.Postal = x.Postal;
y.City = x.City;
y.Date = x.Date.ToString("dd-MM-yy");
result.Add(y);
}
return JsonConvert.SerializeObject(new PagedList(result, result.Count(), 1, 20));
}
}
Even through I don't think it's necessarily, (server side don't filter atm.):
public class Customer
{
public string Phone { get; set; }
public string Name { get; set; }
public string Address { get; set;}
public string Postal { get; set; }
public string City { get; set; }
public string Date { get; set; }
}
public class GridSettings
{
public bool _search { get; set; }
public Filter filters { get; set; }
public long nd { get; set; }
public int rows { get; set; }
public int page { get; set; }
public string sidx { get; set; }
public string sord { get; set; }
}
public class Filter
{
public string groupOp { get; set; }
public Rule[] Rules { get; set; }
public static Filter Create(string json)
{
try
{
return JsonConvert.DeserializeObject<Filter>(json);
}
catch
{
return null;
}
}
}
public class Rule
{
private Dictionary<string, WhereOperation> operations = new Dictionary<string, WhereOperation> {
{ "eq",WhereOperation.Equal },
{ "ne",WhereOperation.NotEqual },
{ "cn",WhereOperation.Contains }
};
public string field { get; set; }
public string op { set; get; }
public WhereOperation oper { get { return operations[op]; } }
public string data { get; set; }
}
public static class LinqExtensions
{
public static IQueryable<T> OrderBy<T>(this IQueryable<T> query, string sortColumn, string direction)
{
ParameterExpression parameter = Expression.Parameter(query.ElementType, "p");
MemberExpression memberAccess = null;
string methodName = string.Format("OrderBy{0}", direction.ToLower() == "asc" ? "" : "descending");
foreach (var property in sortColumn.Split('.'))
{
memberAccess = MemberExpression.Property(memberAccess ?? (parameter as Expression), property);
}
LambdaExpression orderByLambda = Expression.Lambda(memberAccess, parameter);
MethodCallExpression result = Expression.Call(
typeof(Queryable),
methodName,
new[] { query.ElementType, memberAccess.Type },
query.Expression,
Expression.Quote(orderByLambda));
return query.Provider.CreateQuery<T>(result);
}
public static IQueryable<T> Where<T>(this IQueryable<T> query, string column, object value, WhereOperation operation)
{
try
{
if (string.IsNullOrEmpty(column))
return query;
ParameterExpression parameter = Expression.Parameter(query.ElementType, "p");
MemberExpression memberAccess = null;
foreach (var property in column.Split('.'))
memberAccess = Expression.Property(memberAccess ?? (parameter as Expression), property);
if (memberAccess == null)
return query.Where(p => true);
Expression conditional = Expression.Call(null, typeof(LinqExtensions).GetMethod("Comparer"), Expression.Convert(memberAccess, typeof(object)), Expression.Convert(Expression.Constant(value), typeof(object)), Expression.Constant(operation));
MethodCallExpression result = Expression.Call(typeof(Queryable), "Where", new[] { query.ElementType }, query.Expression, Expression.Lambda(conditional, parameter));
return query.Provider.CreateQuery<T>(result);
}
catch
{
return query.Where(p => true);
}
}
public static bool Comparer(this object value1, object value2, WhereOperation operation)
{
string strValue1 = value1.ToString().ToLowerInvariant().Trim();
string strValue2 = value2.ToString().ToLowerInvariant().Trim();
double dblValue1 = -1;
double dblValue2 = -1;
bool areNumbers = double.TryParse(strValue1, out dblValue1) && double.TryParse(strValue2, out dblValue2);
switch (operation)
{
case WhereOperation.Equal:
return areNumbers ? dblValue1 == dblValue2 : strValue1 == strValue2;
case WhereOperation.NotEqual:
return areNumbers ? dblValue1 != dblValue2 : strValue1 != strValue2;
case WhereOperation.Contains:
return strValue1.Contains(strValue2);
}
return true;
}
}
public enum WhereOperation
{
Equal, NotEqual, Contains
}
public class StringValueAttribute : System.Attribute
{
private string _value;
public StringValueAttribute(string value)
{
_value = value;
}
public string Value
{
get { return _value; }
}
}
public class PagedList
{
IEnumerable _rows;
int _totalRecords;
int _pageIndex;
int _pageSize;
object _userData;
public PagedList(IEnumerable rows, int totalRecords, int pageIndex, int pageSize, object userData)
{
_rows = rows;
_totalRecords = totalRecords;
_pageIndex = pageIndex;
_pageSize = pageSize;
_userData = userData;
}
public PagedList(IEnumerable rows, int totalRecords, int pageIndex, int pageSize)
: this(rows, totalRecords, pageIndex, pageSize, null)
{
}
public int total { get { return (int)Math.Ceiling((decimal)_totalRecords / (decimal)_pageSize); } }
public int page { get { return _pageIndex; } }
public int records { get { return _totalRecords; } }
public IEnumerable rows { get { return _rows; } }
public object userData { get { return _userData; } }
public override string ToString()
{
return JsonConvert.SerializeObject(this);
}
}
Any finally Javascript:
$(function () {
$("#CustomerList").dialog({
autoOpen: false,
show: "explode",
width: 720,
height: 450,
open: function () {
$("#CustomerListTable").jqGrid({
datatype: function (pdata) { getListData(pdata, 'Customers', '#CustomerListTable'); },
colNames: ['Telefon', 'Navn', 'Adresse', 'Post', 'By', 'CVR'],
colModel: [
{ name: 'Phone', width: 70, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} },
{ name: 'Name', width: 200, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} },
{ name: 'Address', width: 200, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} },
{ name: 'Postal', width: 60, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} },
{ name: 'City', width: 100, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} },
{ name: 'CVR', width: 70, sortable: true, searchoptions: { sopt: ['eq', 'ne', 'cn']} }
],
caption: "",
height: 360,
loadonce: true,
scroll: 1,
pager: '#CustomerListPager',
gridview: true,
sortname: 'Name',
sortorder: 'asc'
});
$("#CustomerListTable").jqGrid('navGrid', '#CustomerListPager', { del: false, add: false, edit: false }, {}, {}, {}, { multipleSearch: true });
}
});
});
function getListData(pdata, controller, table) {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "Controls/" + controller + ".asmx/GetAll",
data: "{\"grid\":" + JSON.stringify(pdata) + "}",
dataType: "json",
success: function (data, textStatus) {
if (textStatus == "success") RecievedData(JSON.parse(getMain(data)).rows, table);
},
error: function (data, textStatus) {
alert("Error fetching data");
}
});
}
function RecievedData(data, table) {
var thegrid = $(table);
thegrid.clearGridData();
for (var i = 0; i < data.length; i++) thegrid.addRowData(i + 1, data[i]);
thegrid.removeClass("jqgrid-overlay");
}
function getMain(data) {
if (data.hasOwnProperty("d")) return data.d;
else return data;
}
The solution I have this far, is the result of hours and hours of Goggle, reading and experimenting... I'm going about to going nuts!!
Oh and while I'm here - why on earth does the jqGrid search-button show up X times in the #CustomerListPager, when closing / opening the dialog, and why doesn't it request the datas again? I have to refresh the page everytime - which mainly is the reason why I'm using JQuery - i want to avoid that ;)
Thanks for your time if you have read so far - I'm appreciating this!
Happy december!
Nicky.
I do it like this and it loads the data as well as search can be performed easily.
this is the function which is called to load the jqgrid
function FillGrid(WebMethodString, GridName, PagerName, columnModel, columnNames, header)
{
// debugger;
jQuery(GridName).GridUnload();
jQuery.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: WebMethodString,
data: '{}', //PageMethod Parametros de entrada
datatype: "json",
success: function(msg) {
$('#dvWait').css('display', 'block');
// Do interesting things here.
// debugger;
var mydata = jQuery.parseJSON(msg.d);
//console.log(mydata);
jQuery(GridName).jqGrid({
datatype: "local",
data: mydata,
colNames: columnNames,
colModel: columnModel,
pager: jQuery(PagerName),
rowNum: 25,
mtype: "GET",
pagination: true,
scrollOffset: 0,
rowList: [10, 20, 25],
sortname: "WorkOrderID",
scroll: 1,
sortorder: "desc",
multiselect: false,
viewrecords: true,
caption: header,
autowidth: true,
ignoreCase: true,
height: 580,
jsonReader: {
repeatItem: false,
root: function (obj) { return obj.d.rows; },
page: function (obj) { return obj.d.page; },
total: function (obj) { return obj.d.total; },
records: function (obj) { return obj.d.records; }
},
afterInsertRow: function(rowid, rowdata, rowelem) {
jQuery(GridName).setCell(rowid, 'WorkOrderID', '', '', { title: '', onclick: 'DisappearPopup(event);' });
jQuery(GridName).setCell(rowid, 'Requester', '', '', { title: '', onclick: 'DisappearPopup(event);' });
jQuery(GridName).setCell(rowid, 'AssignedTo', '', '', { title: '', onclick: 'DisappearPopup(event);' });
jQuery(GridName).setCell(rowid, 'SummaryText', '', '', { title: '', onclick: 'DisappearPopup(event);' });
jQuery(GridName).setCell(rowid, 'CreationDate', '', '', { title: '', onclick: 'DisappearPopup(event);' });
},
gridComplete: function() {
$('#dvMaintbl').css('visibility', 'visible');
$('#dvWait').css('display', 'none');
}
})
jQuery(GridName).jqGrid('navGrid', PagerName,
{
edit: false,
add: false,
del: false,
searchtext: 'Search',
refreshtext: 'Reload'
});
}
});
}
Add this code in .aspx page
<script type="text/javascript">
// debugger;
jQuery(document).ready(function() {
FillGrid('Json.asmx/GetAllTroubleTickets', '#grid', '#pager', "put your column model here", "put your column names here", "put header text here");
});
</script>
Following is my web service call:
Public Function GetAllTroubleTickets() As String
Dim strStatus As String = HttpContext.Current.Request.QueryString("status")
Dim page As Integer = 1
If HttpContext.Current.Request.Form("page") IsNot Nothing Then
page = Integer.Parse(HttpContext.Current.Request.Form("page").ToString())
End If
Dim rp As Integer = 1
If HttpContext.Current.Request.Form("rowNum") IsNot Nothing Then
rp = Integer.Parse(HttpContext.Current.Request.Form("rowNum").ToString())
End If
Dim start As Integer = ((Page - 1) * rp)
If (strStatus = Nothing) Then
strStatus = "2"
End If
Dim dsDatos As DataSet = GetAllTroubleTicketsclass("", "WorkOrderID asc", "1", "4000", "", Convert.ToInt16(strStatus))
Dim result As String = Jayrock.Json.Conversion.JsonConvert.ExportToString(dsDatos.Tables(0).Rows)
Return result
End Function