在 Sharepoint Designer 的工作流编辑器中，如何获取工作流发起者用户名？

在 Sharepoint 设计器的工作流编辑器中，我希望检索工作流发起者的用户名/名称（即谁启动或触发了工作流） - 使用第 3 方产品（例如 Nintex Workflow 2007）（我将在其中使用类似于 {Common:Initiator}) - 但我似乎无法找到任何开箱即用的方法来使用共享点设计器和 MOSS 2007 来执行此操作。

Update

OOTB 看起来并不支持这个相当明显的功能，因此我最终编写了一个自定义活动（如其中一个答案所建议的那样）。我在这里列出了活动代码以供参考，但我怀疑博客上可能存在一些这样的实例，因为这是一个非常简单的解决方案：

public partial class LookupInitiatorInfo : Activity
{
    public static DependencyProperty __ActivationPropertiesProperty =
        DependencyProperty.Register("__ActivationProperties",
        typeof(Microsoft.SharePoint.Workflow.SPWorkflowActivationProperties),
        typeof(LookupInitiatorInfo));

    public static DependencyProperty __ContextProperty =
        DependencyProperty.Register("__Context", typeof (WorkflowContext),
        typeof (LookupInitiatorInfo));

    public static DependencyProperty PropertyValueVariableProperty =
        DependencyProperty.Register("PropertyValueVariable", typeof (string),    
        typeof(LookupInitiatorInfo));

    public static DependencyProperty UserPropertyProperty = 
        DependencyProperty.Register("UserProperty", typeof (string),
        typeof (LookupInitiatorInfo));

    public LookupInitiatorInfo()
    {
        InitializeComponent();
    }

    [Description("ActivationProperties")]
    [ValidationOption(ValidationOption.Required)]
    [Browsable(true)]
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
    public Microsoft.SharePoint.Workflow.SPWorkflowActivationProperties __ActivationProperties
    {
        get { return ((Microsoft.SharePoint.Workflow.SPWorkflowActivationProperties)(base.GetValue(__ActivationPropertiesProperty))); }
        set { base.SetValue(__ActivationPropertiesProperty, value); }
    }

    [Description("Context")]
    [ValidationOption(ValidationOption.Required)]
    [Browsable(true)]
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
    public WorkflowContext __Context
    {
        get { return ((WorkflowContext)(base.GetValue(__ContextProperty))); }
        set { base.SetValue(__ContextProperty, value); }
    }

    [Description("UserProperty")]
    [ValidationOption(ValidationOption.Required)]
    [Browsable(true)]
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
    public string UserProperty
    {
        get { return ((string) (base.GetValue(UserPropertyProperty))); }
        set { base.SetValue(UserPropertyProperty, value); }
    }

    [Description("PropertyValueVariable")]
    [ValidationOption(ValidationOption.Required)]
    [Browsable(true)]
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
    public string PropertyValueVariable
    {
        get { return ((string) (base.GetValue(PropertyValueVariableProperty))); }
        set { base.SetValue(PropertyValueVariableProperty, value); }
    }

    protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
    {
        // value values for the UserProperty (in most cases you
        // would use LoginName or Name)

        //Sid
        //ID
        //LoginName
        //Name
        //IsDomainGroup
        //Email
        //RawSid
        //Notes

        try
        {
            string err = string.Empty;

            if (__ActivationProperties == null)
            {
                err = "__ActivationProperties was null";
            }
            else
            {
                SPUser user = __ActivationProperties.OriginatorUser;

                if (user != null && UserProperty != null)
                {
                    PropertyInfo property = typeof (SPUser).GetProperty(UserProperty);
                    if (property != null)
                    {
                        object value = property.GetValue(user, null);
                        PropertyValueVariable = (value != null) ? value.ToString() : "";
                    }
                    else
                    {
                        err = string.Format("no property found with the name \"{0}\"", UserProperty);
                    }
                }
                else
                {
                    err = "__ActivationProperties.OriginatorUser was null";
                }
            }
            if (!string.IsNullOrEmpty(err))
                Common.LogExceptionToWorkflowHistory(new ArgumentOutOfRangeException(err), executionContext,
                                                     WorkflowInstanceId);
        }
        catch (Exception e)
        {
            Common.LogExceptionToWorkflowHistory(e, executionContext, WorkflowInstanceId);
        }

        return ActivityExecutionStatus.Closed;
    }
}

然后将其与以下 .action xml 文件连接起来：

<?xml version="1.0" encoding="utf-8"?>
<WorkflowInfo Language="en-us">
<Actions>
    <Action Name="Lookup initiator user property"
 ClassName="XXX.ActivityLibrary.LookupInitiatorInfo"
 Assembly="XXX.ActivityLibrary, Version=1.0.0.0, Culture=neutral, PublicKeyToken=XXX"
 AppliesTo="all"
 Category="WormaldWorkflow Custom Actions">
        <RuleDesigner Sentence="Lookup initating users property named %1 and store in %2">
            <FieldBind Field="UserProperty" DesignerType="TextArea" Id="1" Text="LoginName" />              
            <FieldBind Field="PropertyValueVariable" DesignerType="ParameterNames" Text="variable" Id="2"/>
        </RuleDesigner>
        <Parameters>
            <Parameter Name="__Context" Type="Microsoft.Sharepoint.WorkflowActions.WorkflowContext, Microsoft.SharePoint.WorkflowActions" Direction="In"/>
            <Parameter Name="__ActivationProperties" Type="Microsoft.SharePoint.Workflow.SPWorkflowActivationProperties, Microsoft.SharePoint" Direction="In"/>
            <Parameter Name="UserProperty" Type="System.String, mscorlib" Direction="In" />
            <Parameter Name="PropertyValueVariable" Type="System.String, mscorlib" Direction="Out" />
        </Parameters>
    </Action>
</Actions>
</WorkflowInfo>

对于通过 google 搜索本文并正在使用 SharePoint 2010 的用户来说，工作流启动器变量现在在 SharePoint Designer 中受 OOTB 支持。

数据源将是“工作流程上下文”，字段当然是“发起者”，您可以选择将其返回为“显示名称”、“电子邮件”、“登录名称”或“用户 ID 号”