微軟同步框架新手 - 參數異常未處理

Question

我是非常新的Windows移動開發和MSFT同步框架作爲一個頭。我有一個簡單的應用程序，讀取條形碼，從數據庫中檢索條目，並讓用戶輸入新的讀數。這一切都很好。然而，當我嘗試同步，我得到以下異常：

System.ArgumentException was unhandled 
    Message="ArgumentException" 
    StackTrace: 
     at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean verifyAccess, StackCrawlMark& stackMark) 
     at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) 
     at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) 
     at Microsoft.Synchronization.Data.ServerSyncProviderProxy.ApplyChanges(SyncGroupMetadata groupMetadata, DataSet dataSet, SyncSession syncSession) 
     at Microsoft.Synchronization.SyncAgent.UploadChanges(SyncGroupMetadata groupMetadata) 
     at Microsoft.Synchronization.SyncAgent.Synchronize() 
     at ElectricBarcodeApp.Form1.buttonSync_Click(Object sender, EventArgs e) 
     at System.Windows.Forms.Control.OnClick(EventArgs e) 
     at System.Windows.Forms.Button.OnClick(EventArgs e) 
     at System.Windows.Forms.ButtonBase.WnProc(WM wm, Int32 wParam, Int32 lParam) 
     at System.Windows.Forms.Control._InternalWnProc(WM wm, Int32 wParam, Int32 lParam) 
     at Microsoft.AGL.Forms.EVL.EnterMainLoop(IntPtr hwnMain) 
     at System.Windows.Forms.Application.Run(Form fm) 
     at ElectricBarcodeApp.Program.Main() 

這裏是我的代碼：

// Synchronize the databases 
       Microsoft.Synchronization.Data.SyncStatistics stats = syncAgent.Synchronize(); 

我一直是：

using System; 
using System.Linq; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Text; 
using System.Windows.Forms; 
using System.Data.SqlServerCe; 
using System.IO; 
using System.Reflection; 

namespace ElectricBarcodeApp 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void buttonStart_Click(object sender, EventArgs e) 
     { 
      using (SqlCeConnection conn = new SqlCeConnection(
      ("Data Source=" + (Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase), "ElectricReading.sdf") + ";Max Database Size=2047")))) 
      { 

       // Connect to the local database 
       conn.Open(); 
       using (SqlCeCommand cmd = conn.CreateCommand()) 
       { 
        SqlCeParameter param = new SqlCeParameter(); 
        param.ParameterName = "@Barcode"; 
        param.DbType = DbType.String; 
        param.Value = textBarcode.Text.Trim(); 

        // SELECT rows 
        cmd.CommandText = "SELECT Location, Reading FROM Main2 WHERE Barcode LIKE @Barcode"; 
        cmd.Parameters.Add(param); 

        DataTable data = new DataTable(); 

        using (SqlCeDataReader reader = cmd.ExecuteReader()) 
        { 

          data.Load(reader); 
          this.dataGrid1.DataSource = data; 

        } 

       } 
      } 


     } 

     private void buttonEnter_Click(object sender, EventArgs e) 
     { 
      using (SqlCeConnection conn = new SqlCeConnection(
      ("Data Source=" + (Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase), "ElectricReading.sdf") + ";Max Database Size=2047")))) 
      { 

       // Connect to the local database 
       conn.Open(); 
       using (SqlCeCommand cmd = conn.CreateCommand()) 
       { 

        // INSERT NEW READING 
        cmd.CommandText = "UPDATE Main2 SET Reading = '" + textNewReading.Text.Trim() + "' WHERE Barcode LIKE '" + textBarcode.Text.Trim() + "'"; 

        int m = cmd.ExecuteNonQuery(); 
        cmd.ExecuteNonQuery(); 
        if (m > 0) 
        { 
         MessageBox.Show("New Reading Successfully Entered:" + textNewReading.Text.Trim(), "Confirmation", MessageBoxButtons.OK, MessageBoxIcon.None, MessageBoxDefaultButton.Button1); 
        } 

       } 
      } 

     } 

     private void buttonSync_Click(object sender, EventArgs e) 
     { 
      // The WCF Service 
      ElectricReadingCacheWebRef.ElectricReadingCacheSyncService webSvcProxy = new 
       ElectricBarcodeApp.ElectricReadingCacheWebRef.ElectricReadingCacheSyncService(); 

      // The Remote Server Provider Proxy 
      Microsoft.Synchronization.Data.ServerSyncProviderProxy serverProvider = new 
       Microsoft.Synchronization.Data.ServerSyncProviderProxy(webSvcProxy); 

      // The Sync Agent 
      ElectricReadingCacheSyncAgent syncAgent = new ElectricReadingCacheSyncAgent(); 
      syncAgent.RemoteProvider = serverProvider; 
      //Main2 is the table to be synchronized 
      syncAgent.Main2.SyncDirection = Microsoft.Synchronization.Data.SyncDirection.Bidirectional; 

      // Synchronize the databases 
      Microsoft.Synchronization.Data.SyncStatistics stats = syncAgent.Synchronize(); 

      // Show synchronization statistics 
      MessageBox.Show("Changes Downloaded: " + stats.TotalChangesDownloaded.ToString() + 
       "\r\n" + "Changes Uploaded: " + stats.TotalChangesUploaded.ToString()); 

     } 



    } 
} 

唯一的例外是在這條線拋出無法找到解決方案和任何幫助非常感謝！

編輯：我想這可能是因爲我沒有：

using Microsoft.Synchronization; 
using Microsoft.Synchronization.Data; 

但補充說，並沒有改變例外。

Answer 1

雙擊您的Web引用以在對象瀏覽器中打開它。

展開節點YourAppName.YourAppNameCacheWebRef。

右鍵單擊YourNameCacheSyncService並單擊轉到定義。

Reference.cs在代碼編輯器中打開。

添加以下代碼的最後使用或進口語句後：

Imports Microsoft.Synchronization 
Imports Microsoft.Synchronization.Data 

或者，在C＃：

using Microsoft.Synchronization; 
using Microsoft.Synchronization.Data; 

除了YourNameCacheSyncService移除文件中的所有類和枚舉。