本文整理汇总了C#中System.Activities.Persistence.PersistenceParticipant.MapValues方法的典型用法代码示例。如果您正苦于以下问题：C# PersistenceParticipant.MapValues方法的具体用法？C# PersistenceParticipant.MapValues怎么用？C# PersistenceParticipant.MapValues使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Activities.Persistence.PersistenceParticipant的用法示例。
在下文中一共展示了PersistenceParticipant.MapValues方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: XmlPersistenceParticipant
class XmlPersistenceParticipant : PersistenceParticipant
{
const string propertiesNamespace = "urn:schemas-microsoft-com:System.Activities/4.0/properties";
private Guid Id;
public XmlPersistenceParticipant(Guid id)
{
Id = id;
}
//Add any additional necessary data to persist here
protected override void CollectValues(out IDictionary<XName, object> readWriteValues, out IDictionary<XName, object> writeOnlyValues)
{
base.CollectValues(out readWriteValues, out writeOnlyValues);
}
//Implementations of MapValues are given all the values collected from all participants’ implementations of CollectValues
protected override IDictionary<XName, object> MapValues(IDictionary<XName, object> readWriteValues, IDictionary<XName, object> writeOnlyValues)
{
XName statusXname = XName.Get("Status", propertiesNamespace);
IDictionary<XName, object> mappedValues = base.MapValues(readWriteValues, writeOnlyValues);
RequestForProposal requestForProposal = null;
string status = string.Empty;
object value = null;
//retrieve the status of the workflow
if (writeOnlyValues.TryGetValue(statusXname, out value))
{
status = (string)value;
}
//retrieve the RequestForProposal object
foreach (KeyValuePair<System.Xml.Linq.XName, object> item in writeOnlyValues)
{
if (item.Value is LocationInfo)
{
LocationInfo li = (LocationInfo)item.Value;
if (li.Value is RequestForProposal)
{
requestForProposal = (RequestForProposal)li.Value;
}
}
}
IOHelper.EnsureAllRfpFileExists();
// load the document
XElement doc = XElement.Load(IOHelper.GetAllRfpsFileName());
IEnumerable<XElement> current =
from r in doc.Elements("requestForProposal")
where r.Attribute("id").Value.Equals(Id.ToString())
select r;
if (status == "Closed")
{
// erase nodes for the current rfp
foreach (XElement xe in current)
{
xe.Attribute("status").Value = "finished";
}
}
else
{
// erase nodes for the current rfp
foreach (XElement xe in current)
{
xe.Remove();
}
// get the Xml version of the Rfp, add it to the document and save it
if (requestForProposal != null)
{
XElement e = SerializeRfp(requestForProposal, Id);
doc.Add(e);
}
}
doc.Save(IOHelper.GetAllRfpsFileName());
return mappedValues;
}