/// <summary>
/// Serializes a specified DynamicActivity object into a string.
/// </summary>
/// <param name="da">The specified DynamicActivity object.</param>
/// <returns>A string as result of serialization.</returns>
public string Serialize(DynamicActivity da)
{
StringBuilder stringBuilder = new StringBuilder();
using (StringWriter writer = new StringWriter(stringBuilder))
{
ActivitySerializer serializer = new ActivitySerializer();
serializer.Serialize(writer, da);
}
string workflowXaml = stringBuilder.ToString();
return(workflowXaml);
}
/// <summary>
/// Adds used extended arguments to DynamicActivity.Properties and remove unused extended
/// arguments from DynamicActivity.Properties.
/// </summary>
/// <param name="da">The DynamicActivity to which we apply extended arguments</param>
public void ApplyExtendedArguments(DynamicActivity da)
{
// Get serialized XAML
ActivitySerializer serializer = Owner.Storage.Serializer;
string xaml = serializer.Serialize(da);
foreach (IRuleSignatureExtension extension in Extensions)
{
foreach (RuleArgument arg in extension.GetSystemInArguments())
{
string argumentName = arg.Name;
string keyword = String.Format("[{0}]", argumentName);
bool isUsed = xaml.Contains(keyword);
if (isUsed)
{
// Make sure the corresponding property exists.
if (!da.Properties.Contains(argumentName))
{
da.Properties.Add(new DynamicActivityProperty
{
Name = argumentName,
Type = typeof(InArgument <>).MakeGenericType(arg.ArgumentType)
});
}
}
else
{
// Make sure the property is removed.
if (da.Properties.Contains(argumentName))
{
da.Properties.Remove(argumentName);
}
}
}
}
}
