【发布时间】：2013-11-26 21:23:43
【问题描述】：
我正在使用 Kendo UI 功能 Grid 并尝试实现批量更新功能。
这是我到目前为止所做的：
$(document).ready(function () {
("#grid").kendoGrid({
dataSource:
{
type: "json",
transport:
{
read: function (options) {
$.ajax({
url: "IndicatorService.svc/GetIndicators/" + speedID,
dataType: "json",
success: function (result) {
options.success(result);
}
});
},
update: function(options) {
$.ajax({
type: "POST",
url: "IndicatorService.svc/UpdateIndicators",
dataType: "json",
contentType: "application/json",
data: {
Indicators: kendo.stringify(options.data.models)
},
success: function(result) {
// notify the data source that the request succeeded
options.success(result);
},
error: function(result) {
// notify the data source that the request failed
options.error(result);
}
});
}
},
batch: true,
schema: {
type: 'json',
model: {
id: "IndicatorUID",
fields: {
IndicatorUID: { type: "guid" },
IndicatorName: { type: "string" },
LastUpdatedBy: { type: "string" },
LastUpdatedDate: { type: "date" },
POPL3Commit: { type: "date" },
ActualFinish: { type: "date" },
PlanOfRecord: { type: "date" },
Trend: { type: "date" }
}
}
},
pageSize: 10
},
height: 430,
filterable: true,
sortable: true,
pageable: true,
toolbar: ["create", "save", "cancel"],
editable: true,
columns: [
{
field: "IndicatorName",
title: "IndicatorName",
width: 120
},
{
field: "POPL3Commit",
title: "POPL3Commit",
format: "{0:MM/dd/yyyy}",
width: 120
},
{
field: "PlanOfRecord",
title: "PlanOfRecord",
format: "{0:MM/dd/yyyy}",
width: 120
},
{
field: "Trend",
title: "Trend",
format: "{0:MM/dd/yyyy}",
width: 120
},
{
field: "ActualFinish",
title: "ActualFinish",
format: "{0:MM/dd/yyyy}",
width: 120
},
{
field: "LastUpdatedBy",
title: "LastUpdatedBy",
width: 120
},
{
field: "LastUpdatedDate",
title: "LastUpdatedDate",
width: 120
}
]
});
});
我的视图模型（IndicatorGridLineItem）
[DataContractAttribute]
public class IndicatorGridLineItem
{
#region Private Properties
/// <summary>
/// Indicator UID
/// </summary>
private Guid _indicatorUID { get; set; }
/// <summary>
/// The _indicator name
/// </summary>
private string _indicatorName { get; set; }
/// <summary>
/// The _commit
/// </summary>
private DateTime _pOPL3Commit { get; set; }
/// <summary>
/// The _p OR
/// </summary>
private DateTime _planOfRecord { get; set; }
/// <summary>
/// The _trend
/// </summary>
private DateTime _trend { get; set; }
/// <summary>
/// The _trend color
/// </summary>
private string _trendColor { get; set; }
/// <summary>
/// The _actual finish
/// </summary>
private DateTime _actualFinish { get; set; }
/// <summary>
/// The _last updated by
/// </summary>
private string _lastUpdatedBy { get; set; }
/// <summary>
/// The _last updated date
/// </summary>
private DateTime _lastUpdatedDate { get; set; }
#endregion Private Properties
#region Public Properties
/// <summary>
/// Indicator UID
/// </summary>
[DataMember]
public string IndicatorUID
{
get
{
return _indicatorUID.ToString();
}
set
{
Guid newGuid;
if (Guid.TryParse(value, out newGuid))
_indicatorUID = newGuid;
else
_indicatorUID = Guid.Parse("00000000-0000-0000-0000-000000000000");
}
}
/// <summary>
/// The indicator name
/// </summary>
[DataMember]
public string IndicatorName
{
get
{
return _indicatorName;
}
set
{
_indicatorName = value;
}
}
/// <summary>
/// The commit
/// </summary>
[DataMember]
public string POPL3Commit
{
get
{
return DateOutputGenerator(_pOPL3Commit);
}
set
{
_pOPL3Commit = DateInputGenerator(value);
}
}
/// <summary>
/// The POR
/// </summary>
[DataMember]
public string PlanOfRecord
{
get
{
return DateOutputGenerator(_planOfRecord);
}
set
{
_planOfRecord = DateInputGenerator(value);
}
}
/// <summary>
/// The trend
/// </summary>
[DataMember]
public string Trend
{
get
{
return DateOutputGenerator(_trend);
}
set
{
_trend = DateInputGenerator(value);
}
}
/// <summary>
/// The trend color
/// </summary>
[DataMember]
public string TrendColor
{
get
{
return String.IsNullOrEmpty(_trendColor) ? _trendColor : "";
}
set
{
_trendColor = value;
}
}
/// <summary>
/// The actual finish
/// </summary>
[DataMember]
public string ActualFinish
{
get
{
return DateOutputGenerator(_actualFinish);
}
set
{
_actualFinish = DateInputGenerator(value);
}
}
/// <summary>
/// The last updated by
/// </summary>
[DataMember]
public string LastUpdatedBy
{
get
{
return String.IsNullOrEmpty(_lastUpdatedBy) ? _lastUpdatedBy : "";
}
set
{
_lastUpdatedBy = value;
}
}
/// <summary>
/// The last updated date
/// </summary>
[DataMember]
public string LastUpdatedDate
{
get
{
return DateOutputGenerator(_lastUpdatedDate);
}
set
{
_lastUpdatedDate = DateInputGenerator(value);
}
}
#endregion Public Properties
/// <summary>
/// Dates the output generator.
/// </summary>
/// <param name="value">The value.</param>
/// <returns></returns>
protected string DateOutputGenerator(DateTime value)
{
DateTime beginningOfTime = new DateTime();
if (beginningOfTime.ToString().Equals(value.ToString()))
return "";
else
return value.ToString();
}
/// <summary>
/// Dates the input generator.
/// </summary>
/// <param name="value">The value.</param>
/// <returns></returns>
protected DateTime DateInputGenerator(string value)
{
DateTime parsedDate;
if (DateTime.TryParse(value, out parsedDate))
return parsedDate;
else
return new DateTime();
}
}
这是 WCF 接口：
[ServiceContract]
public interface IIndicatorService
{
[OperationContract]
[WebGet(UriTemplate = "/GetIndicators/{SpeedId}", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
List<IndicatorGridLineItem> GetIndicators(string SpeedId);
[OperationContract]
[WebInvoke(UriTemplate = "/UpdateIndicators", Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
void UpdateIndicators(string Indicators);
}
最后，这是我在 WCF 服务中的更新实现的代码：
public void UpdateIndicators(string Indicators)
{
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
IEnumerable<IndicatorGridLineItem> foos = serializer.Deserialize<IEnumerable<IndicatorGridLineItem>>(Indicators);
}
当我在这个函数中设置断点时，这就是我所看到的
string Indicators ="Indicators=%5B%7B%22ActualFinish%22%3Anull%2C%22IndicatorName%22%3A%22Ownership%22%2C%22IndicatorUID%22%3A%220ac1eb81-d44c-4b6a-9c3b-043537805cc7%22%2C%22LastUpdatedBy%22%3Anull%2C%22LastUpdatedDate%22%3Anull%2C%22POPL3Commit%22%3A%222013-11-26T08%3A00%3A00.000Z%22%2C%22PlanOfRecord%22%3Anull%2C%22Trend%22%3Anull%2C%22TrendColor%22%3Anull%7D%5D"
当行 IEnumerable foos = serializer.Deserialize>(Indicators);在调试时执行我得到以下 ArgumentException： JSON 原语无效：Indicators.System.ArgumentException 未被用户代码处理
HResult=-2147024809
Message=Invalid JSON primitive: Indicators.
Source=System.Web.Extensions
StackTrace:
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)
at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)
at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)
at PDD_Web_UI.IndicatorService.UpdateIndicators(String Indicators) in c:\TFS-Newest\PCSO CSE\PDD Web UI\IndicatorService.svc.cs:line 23
at SyncInvokeUpdateIndicators(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
InnerException:
另外请注意，我尝试修改 WCF 服务参数以使用 IEnumerable Indicators，但在没有字符串 Indicators 作为参数的情况下根本无法在我的 UpdateIndicators 方法中到达断点。
【问题讨论】：
标签： c# json wcf kendo-ui kendo-grid