【发布时间】：2011-09-30 05:56:20
【问题描述】：
var store = new FMP.AspNetJsonStore({
fields: [
{ name: 'AssetID' },
{ name: 'AssociationID' },
{ name: 'Image' },
{ name: 'StatusName' },
{ name: 'ModelName' },
{ name: 'IPAddress' },
{ name: 'InScope', type: 'boolean' },
{ name: 'ServicePlanName' },
{ name: 'PricePlanName' },
{ name: 'PricePlanDescription' },
{ name: 'Program' },
{ name: 'ServicePlanID' },
{ name: 'Customer' },
{ name: 'Black', type: 'float' },
{ name: 'Cyan', type: 'float' },
{ name: 'Magenta', type: 'float' },
{ name: 'Yellow', type: 'float' },
{ name: 'BlackPct' },
{ name: 'CyanPct' },
{ name: 'MagentaPct' },
{ name: 'YellowPct' },
{ name: 'PrinterMarkerSupplies' },
{ name: 'PageCount' },
{ name: 'BlackImpressions' },
{ name: 'ColorImpressions' },
{ name: 'PricePlanID' },
{ name: 'ResponsibilityForAction' },
{ name: 'PrinterSerialNumber' }
],
totalProperty: "TotalCount",
autoLoad: { params: { start: 0, limit: myPageSize} },
//autoLoad: true,
proxy: new Ext.data.HttpProxy({
// Call web service method using GET syntax
url: 'GetPrintersGrid.asmx/buildGrid',
// Ask for Json response
headers: { 'Content-type': 'application/json' },
method: "GET"
}),
remoteSort: true,
//sortInfo: { field: 'PageCount', direction: "DESC" },
groupField: 'Customer',
root: 'Records'
});
store.setDefaultSort('PageCount', 'DESC');
我正在使用网络服务来排序。
我收到一个错误
{"Message":"Invalid JSON primitive: DESC.","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)\r\n at System.Web.Script.Services.RestHandler.GetRawParamsFromGetRequest(HttpContext context, JavaScriptSerializer serializer, WebServiceMethodData methodData)\r\n at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"}
谁能帮我解决这个问题
我正在使用Ext.ux.AspWebServiceProxy 类并在商店中使用了这个代理类。还在scriptmanager 代理中的用户控件中定义了webservice 我收到一条错误消息，指出 GetPrintersGrid 未定义。我使用以下示例作为参考。
http://osman.in/aspnet/using-extjs-grid-with-aspnet-ajax-wcf-webservices-c/
你能帮我解决这个问题吗？
/// <reference path="ExtJS/ext-all.js" />
Ext.namespace('Ext.ux');
Ext.ux.AspWebServiceProxy = function(conn)
{
Ext.ux.AspWebServiceProxy.superclass.constructor.call(this);
Ext.apply(this, conn);
};
Ext.extend(Ext.ux.AspWebServiceProxy, Ext.data.DataProxy,
{
load : function (params, reader, callback, scope, arg)
{
var userContext = {
callback: callback,
reader: reader,
arg: arg,
scope: scope
};
var proxyWrapper = this;
//Handles the response we get back from the web service call
var webServiceCallback = function(response, context, methodName)
{
proxyWrapper.loadResponse(response, userContext, methodName);
}
var serviceParams = [];
//Convert the params into an array of values so that they can be used in the call (note assumes that the properties on the object are in the correct order)
for (var property in params)
{
serviceParams.push(params[property]);
}
//Add the webservice callback handlers
serviceParams.push(webServiceCallback);
serviceParams.push(this.handleErrorResponse);
//Make the actual ASP.Net web service call
this.webServiceProxyMethod.apply(this.webServiceProxy, serviceParams);
},
handleErrorResponse : function(response, userContext, methodName)
{
alert("Error while calling method: " + methodName + "\n" + response.get_message());
},
loadResponse : function (response, userContext, methodName)
{
var result = userContext.reader.readRecords(response);
userContext.callback.call(userContext.scope, result, userContext.arg, true);
}
});
var dataStore = new Ext.data.Store(
{
//Note that I have renamed the web service proxy class
proxy: new Ext.ux.AspWebServiceProxy(
{
webServiceProxy: GetPrintersGrid,
webServiceProxyMethod: GetPrintersGrid.buildGrid
}),
remoteSort: true
});
<asp:ScriptManagerProxy ID="PageScriptManager" runat="server">
<Services>
<asp:ServiceReference Path="~/GetPrintersGrid.asmx" />
</Services>
<Scripts>
<asp:ScriptReference Path="~/Ext.ux.AspWebServiceProxy.js" />
</Scripts>
</asp:ScriptManagerProxy>
【问题讨论】：
-
这仍然不是 ExtJS 问题，但是如果您解决了服务器问题，您需要发布 FMP.AspNetJsonStore 的源代码。
-
实际上，这很可能是客户端代码问题，因为服务器错误是关于在 Web 服务调用中de序列化从客户端发送到服务器的 JSON。很难从发布的内容中分辨出来......
标签： extjs