我正在開發一個UCMA 3.0工作流應用程序，並試圖在我們的客戶端管理系統中生成查詢，允許最終用戶通過語音或即時消息獲取有關特定客戶端的數據。我想知道如何使用允許通用輸入的UCMA創建一個通用的問答活動。我知道我可以設置預期的輸入和語法，但是通過雙數據化選項以及最終用戶可能知道確切的客戶名稱（或客戶端號碼）的可能性，我寧願允許用戶輸入部分名稱，然後在數據庫中搜索可能符合條件的名稱列表。有沒有人知道一種方法，並有示例代碼，可以讓我做到這一點，如果可能的話？UCMA通用問題答案活動
我有同樣的問題，不得不寫一個自定義活動來捕獲用戶的一般輸入。這需要一些工作來使其生產就緒。請注意在多個位置優先捕獲system.exception，並且如果在超時期限內沒有收到輸入，而不是重新提示用戶，則會拋出異常。也沒有正則表達式在用戶輸入...
InstanceDependencyProperty是令人沮喪的工作流的東西。如果不使用InstanceDependencyProperties，則在活動完成後將無法檢索任何結果。
希望這會有所幫助！
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Threading;
using System.Workflow.Activities;
using System.Workflow.Activities.Rules;
using System.Workflow.ComponentModel;
using System.Workflow.ComponentModel.Design;
using System.Workflow.ComponentModel.Compiler;
using System.Workflow.ComponentModel.Serialization;
using System.Workflow.Runtime;
using Microsoft.Rtc.Collaboration;
using Microsoft.Rtc.Workflow.Activities;
using Microsoft.Rtc.Workflow.Common;
namespace ActivityLibrary
{
public partial class CaptureIMInput : Activity, IInstanceDependencyContainer
{
#region Private member variables
private CallProvider _callProvider;
private Timer _maximumTimer;
private string _imText;
private bool messageReceived = false;
private bool _maximumTimerElapsed = false;
#endregion
public CaptureIMInput()
{
InitializeComponent();
_instanceDependencyProperties = new Dictionary<string, object>();
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
try
{
this._callProvider = Utilities.GetCallProviderFromParent<InstantMessagingCall>(this);
InstantMessagingCall call = (InstantMessagingCall)this._callProvider.Call;
try
{
if (call.State == CallState.Established)
{
call.Flow.EndSendInstantMessage(call.Flow.BeginSendInstantMessage(MainPrompt, null, null));
_maximumTimer = new Timer(new TimerCallback(OnMaximumTimerFired), null, MaximumPrompt, new TimeSpan(0, 0, 0, 0, -1));
call.Flow.MessageReceived += this.InstantMessagingFlow_MessageReceived;
while (!messageReceived)
{
if (_maximumTimerElapsed)
throw new TimeoutException("User input was not detected within alloted time");
}
if (!string.IsNullOrEmpty(_imText))
{
IMText = _imText;
{
this.Stop();
return ActivityExecutionStatus.Closed;
}
}
}
}
catch (Exception ex)
{
throw ex;
}
}
catch (Exception ex)
{
throw ex;
}
return ActivityExecutionStatus.Closed;
}
protected override ActivityExecutionStatus Cancel(ActivityExecutionContext executionContext)
{
this.Stop(); //Clean up timer
return ActivityExecutionStatus.Canceling;
}
private void Stop()
{
if (_maximumTimer != null)
{
_maximumTimer.Dispose();
_maximumTimer = null;
}
}
private void InstantMessagingFlow_MessageReceived(object sender, InstantMessageReceivedEventArgs e)
{
//Can't set dependencyproperties directly from sub-thread
_imText = e.TextBody;
//Mark bool so main while loop exits
messageReceived = true;
}
//Callback to
private void OnMaximumTimerFired(object state)
{
_maximumTimerElapsed = true;
}
#region InstanceDependency dictionary
private Dictionary<string, object> _instanceDependencyProperties;
[Browsable(false)]
public Dictionary<string, object> InstanceDependencyProperties
{
get { return _instanceDependencyProperties; }
}
#endregion
#region Maximum Prompt Timeout
[NonSerialized]
private static readonly InstanceDependencyProperty MaximumPromptProperty = InstanceDependencyProperty.Register("MaximumPrompt", typeof(TimeSpan), typeof(CaptureIMInput), new TimeSpan(0, 0, 30));
[TypeConverter(typeof(TimeSpanConverter))]
public TimeSpan MaximumPrompt
{
get
{
if (base.DesignMode)
return (TimeSpan)InstanceDependencyHelper.GetValue<CaptureIMInput>(this, MaximumPromptProperty);
else
return (TimeSpan)InstanceDependencyHelper.GetValue<CaptureIMInput>(this, this.WorkflowInstanceId, MaximumPromptProperty);
}
set
{
if (base.DesignMode)
InstanceDependencyHelper.SetValue<CaptureIMInput>(this, MaximumPromptProperty, value);
else
InstanceDependencyHelper.SetValue<CaptureIMInput>(this, this.WorkflowInstanceId, MaximumPromptProperty, value);
}
}
#endregion
#region MainPrompt
public static DependencyProperty MainPromptProperty =
DependencyProperty.Register("MainPrompt", typeof(string), typeof(CaptureIMInput));
[ValidationOption(ValidationOption.Required)]
public string MainPrompt
{
get
{
return (string)base.GetValue(MainPromptProperty);
}
set
{
base.SetValue(MainPromptProperty, value);
}
}
#endregion
#region Instant Message Text
public static InstanceDependencyProperty IMTextProperty =
InstanceDependencyProperty.Register("IMText",
typeof(string),
typeof(CaptureIMInput));
[Description("InstantMessaging Text from user")]
[Browsable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public string IMText
{
get
{
if (base.DesignMode) return ((string)InstanceDependencyHelper.GetValue<CaptureIMInput>(this, CaptureIMInput.IMTextProperty));
else return ((string)(InstanceDependencyHelper.GetValue<CaptureIMInput>(this, this.WorkflowInstanceId, CaptureIMInput.IMTextProperty)));
}
set
{
if (base.DesignMode) InstanceDependencyHelper.SetValue<CaptureIMInput>(this, CaptureIMInput.IMTextProperty, value);
else InstanceDependencyHelper.SetValue<CaptureIMInput>(this, this.WorkflowInstanceId, CaptureIMInput.IMTextProperty, value);
}
}
#endregion
}
}