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对此进行排序。
我收到错误
{"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"}
任何人都可以帮我解决这个问题
我正在使用Ext.ux.AspWebServiceProxy类并在store中使用此代理类。还在scriptmanager代理中定义了用户控件中的webservice 我得到一个错误，说GetPrintersGrid是未定义的。我使用以下示例作为参考。
http://osman.in/aspnet/using-extjs-grid-with-aspnet-ajax-wcf-webservices-c/
你可以帮我解决这个问题。
/// <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>
答案 0 :(得分：1)
这是我使用的源代码 FMP.AspNetJsonReader = Ext.extend（Ext.data.JsonReader，{
read: function(response) {
// Assuming ASP.NET encoding - Data is stored as
var json = response.responseText;
var o = Ext.decode(json);
if (!o) {
throw { message: "AspNetJsonReader.read: Json object not found" };
}
if (!o.d) {
throw { message: "AspNetJsonReader.read: Root element d not found" };
}
return this.readRecords(o.d);
}
});
FMP.AspNetJsonStore = Ext.extend(Ext.data.GroupingStore, {
/**
* @cfg {Ext.data.DataReader} reader @hide
*/
constructor: function(config) {
FMP.AspNetJsonStore.superclass.constructor.call(this, Ext.apply(config, {
reader: new FMP.AspNetJsonReader(config)
}));
}
});
我使用AS.NET作为服务器端
这是我的网络服务 public PagedResult buildGrid（int start，int limit，string sortfield，string dir） { var a = 5;
Guid AccountID = (Guid)Session["AccountID"];
//string sortdir;
//if( dir == "DESC")
//{
// sortdir = dir.Substring(0, 4).Trim().ToUpper();
//}
//else
//{
// sortdir = dir.Substring(0, 3).Trim().ToUpper();
//}
string SortExpression = sortfield + " " + (!String.IsNullOrEmpty(dir) ? dir : String.Empty);
//string whereClause = "SELECT value a FROM XSP_AssetList_V AS a WHERE a.AccountID = GUID'" + AccountID + "' order by a.PageCount = '" + + "'";
string whereClause = "SELECT value a FROM XSP_AssetList_V AS a WHERE a.AccountID = GUID'" + AccountID + "' Order By a."+SortExpression;
//string whereClause = "SELECT value a , ROW_NUMBER() OVER(ORDER BY" + " " + SortExpression + ") As RowNumber FROM XSP_AssetList_V AS a WHERE a.AccountID = GUID'" + AccountID + "'";
//string whereClause = "SELECT value a FROM XSP_AssetList_V AS a WHERE a.AccountID = GUID'" + AccountID + "'";
List<FMPAsset> fmpAssets = new List<FMPAsset>();
using (XSPAssetModel.XSPAssetEntities assetEntities = new XSPAssetEntities(b.BuildEntityConnectionString1("XSMDSN")))
{
ObjectQuery<XSP_AssetList_V> assets = new ObjectQuery<XSP_AssetList_V>(whereClause, assetEntities);
//var assetOrder = assets.OrderBy(x => x.StatusName).ToList();
var assetPage = assets.Skip(start).Take(limit);
//var totalAssetCount = assets.Count();
currentAssets = assetPage.ToList();
int currentAssetsCount = currentAssets.Count;
string imgprefix = System.Configuration.ConfigurationManager.AppSettings["ImgPrefix"];
char[] separators = { '/' };
string appname = "";
int lastloc = imgprefix.Substring(0, imgprefix.Length - 1).LastIndexOfAny(separators);
if (lastloc > 6)
{
appname = imgprefix.Substring(lastloc + 1);
}
FMPAsset asset = new FMPAsset();
//StreamWriter sw = new StreamWriter("C:\\test.txt");
XSPPrinterMarkerSupplyModel.XSPPrinterMarkerSupplyEntities markerCtx = new XSPPrinterMarkerSupplyModel.XSPPrinterMarkerSupplyEntities(b.BuildEntityConnectionString1("XSMDSN"));
for (int x = 0; x < currentAssetsCount; x++)
{
asset = new FMPAsset();
asset.AssetID = currentAssets[x].AssetID.ToString();
asset.PricePlanID = currentAssets[x].PricePlanID.ToString();
asset.AssociationID = currentAssets[x].AssociationID;
asset.ModelName = currentAssets[x].ModelName;
asset.ResponsibilityForAction = currentAssets[x].ResponsibilityForAction;
asset.IPAddress = (String.IsNullOrEmpty(currentAssets[x].PrinterIPAddress)) ? "No IP" : currentAssets[x].PrinterIPAddress; ;
if (currentAssets[x].InScope)
{
asset.InScope = b.GetString("SDE_YES");
}
else
{
asset.InScope = b.GetString("SDE_NO");
}
asset = SetStatus(appname, asset, x);
asset.PricePlanName = currentAssets[x].Program;
asset.PricePlanDescription = currentAssets[x].PricePlanDescription;
asset.ServicePlanName = currentAssets[x].ServicePlanName;
if (currentAssets[x].PrinterSerialNumber != null)
{
asset.PrinterSerialNumber = currentAssets[x].PrinterSerialNumber;
}
else
{
asset.PrinterSerialNumber = "-";
}
//sw.WriteLine("ChargebackDescription: " + DateTime.Now.Millisecond);
if (this.b.UseChargebackDescription && !String.IsNullOrEmpty(currentAssets[x].CustomerChargebackDescription) && currentAssets[x].CustomerChargebackDescription != "Generated by OUT Integration")
{
asset.Customer = currentAssets[x].CustomerChargebackDescription;
if (asset.Customer.IndexOf(Environment.NewLine) > -1)
{
asset.Customer = asset.Customer.Substring(0, asset.Customer.IndexOf(Environment.NewLine));
}
}
else
{
asset.Customer = currentAssets[x].CustomerChargeBackEntryName;
}
if (this.b.UsePricePlanDescription && !String.IsNullOrEmpty(currentAssets[x].PricePlanDescription))
{
asset.Program = currentAssets[x].PricePlanDescription;
if (asset.Program.IndexOf(Environment.NewLine) > -1)
{
asset.Program = asset.Program.Substring(0, asset.Program.IndexOf(Environment.NewLine));
}
}
else
{
asset.Program = currentAssets[x].Program;
}
asset.BlackPct = -3;
asset.CyanPct = -3;
asset.MagentaPct = -3;
asset.YellowPct = -3;
Guid id = currentAssets[x].AssetID;
asset = SetCMYKvalues(asset, x);
BuilldImpressionsValues(currentAssets[x], ref asset);
fmpAssets.Add(asset);
}
var totalAssetCount = assets.Count();
var y = new PagedResult<FMPAsset>();
y.Records = fmpAssets;
y.TotalCount = totalAssetCount;
return y;
// CommonGrid1.BindDataSource(SortByStatusName(fmpAssets));
}
}
答案 1 :(得分：0)
当您的商店正在调用您的网络服务时，会发生此错误。无论发送什么JSON由于某种原因（或.NET认为不是）都无效，因此当ASP.NET试图将数据反序列化为您的方法的有效参数列表时，服务器出错。我首先会在Firebug中查看究竟是什么JSON传递给服务器 - 这可能会给你一个关于问题的线索。如果发送的JSON无效，则它是客户端/ Ext问题 - 如果它是有效的，那么这是一个.NET问题。