Winform 调用WCF客户端，所有服务端方法在运行的时候均找不到（

今天在开发过程中遇到了一个很恶心的问题，就是Form窗体ShowDialog的时候，直接报出下面的错误：

有关调用实时(JIT)调试而不是此对话框的详细信息，请参见此消息的结尾。************** 异常文本 **************System.MissingMethodException: 找不到方法:“XXX.XXX.DataObject.SPI.DataObjectColumn[] XXX.XXX.WCFClient.WCFService.ServiceClient.DataColumn_GetListByDOID(System.String)”。 在 XXX.XXX.Common.CommonHelp.UI.HelpForm.HelpDisplayEditorForm_Load(Object sender, EventArgs e) 在 System.Windows.Forms.Form.OnLoad(EventArgs e) 在 System.Windows.Forms.Form.OnCreateControl() 在 System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) 在 System.Windows.Forms.Control.CreateControl() 在 System.Windows.Forms.Control.WmShowWindow(Message& m) 在 System.Windows.Forms.Control.WndProc(Message& m) 在 System.Windows.Forms.ScrollableControl.WndProc(Message& m) 在 System.Windows.Forms.Form.WmShowWindow(Message& m) 在 System.Windows.Forms.Form.WndProc(Message& m) 在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) 在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) 在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

于是，咨询了一下同事，同事说把HelpDisplayEditorForm_Load中的所有代码屏蔽掉，看看效果。

我把HelpDisplayEditorForm_Load内所有代码屏蔽到以后，断点可以进入HelpDisplayEditorForm_Load函数内部了，然后，一部分一部分代码的放开，发现，只要到需要调用服务端方法的时候，就会报出上面的错误（所有调用WCF服务端方法的地方都会报错）。

更新过错误提示的dll（通过dll反编译发现错误提示的函数在dll中是存在的），重启过iis等等N过方法之后，还有木有搞定。

由于，是所有WCF服务端方法均不可用，于是回头研究WCF客户端，发现WCF客户端有问题，，有人在获取WCF服务端方法的时候，WCF将服务契约标识方法入参中的自定义类型、返回值是自定义类型的，均隐式进行了实体类序列化（此处的序列化指的是，将自定义类型的实体，标识成了WCF数据契约的类型）。

比如SPI中的实体类如下：

using System.Data;namespace XXXX.XXXX.Common.CommonHelp.SPI{/// <summary>/// 智能帮助数据实体类/// 对应数据库：[A_CommonHelp]/// </summary>public class CommonHelpDataEntity{/// <summary>/// HelpEntity 是一个指针 标明该CommonHelpDataEntity属于哪一个CommonHelpEntity/// </summary>private CommonHelpEntity entity;public CommonHelpEntity HelpEntity{get { return entity; }}private string displayColumns;/// <summary>/// 显示字段/// </summary>public string DisplayColumns{get { return displayColumns; }set { displayColumns = value; }}private string sourceObject;/// <summary>/// 源SQL语句/// </summary>public string SourceObject{get { return sourceObject; }set { sourceObject = value; }}private string dataTextField;/// <summary>/// 绑定Text字段/// </summary>public string DataTextField{get { return dataTextField; }set { dataTextField = value; }}private string dataValueField;/// <summary>/// 绑定Value字段/// </summary>public string DataValueField{get { return dataValueField; }set { dataValueField = value; }}private string orderFields;/// <summary>/// 默认排序字段/// </summary>public string OrderFields{get { return orderFields; }set { orderFields = value; }}public string rowId;/// <summary>/// 标志字段/// </summary>public string RowId{get { return rowId; }set { rowId = value; }}private string defaultValueCondition;/// <summary>/// 默认值条件/// </summary>public string DefaultValueCondition{get { return defaultValueCondition; }set { defaultValueCondition = value; }}private string category;/// <summary>/// 帮助类别/// </summary>public string Category{get { return category; }set { category = value; }}private string selectDataObjectId;/// <summary>/// 搜索引擎类型帮助勾选的数据对象的Id/// </summary>public string SelectDataObjectId{get { return selectDataObjectId; }set { selectDataObjectId = value; }}private string searchEngineId;/// <summary>/// 搜索引擎帮助A_SearchEngine ID/// </summary>public string SearchEngineId{get { return searchEngineId; }set { searchEngineId = value; }}private string dataModeldId;/// <summary>/// 数据模型Id/// </summary>public string DataModeldId{get { return dataModeldId; }set { dataModeldId = value; }}private string createTime;/// <summary>/// 帮助创建时间/// </summary>public string CreateTime{get { return createTime; }set { createTime = value; }}private string lastUpdateTime;/// <summary>/// 帮助 最后更新时间/// </summary>public string LastUpdateTime{get { return lastUpdateTime; }set { lastUpdateTime = value; }}public CommonHelpDataEntity(){entity = new CommonHelpEntity();entity.SetDataEntity(this);}public CommonHelpDataEntity(CommonHelpEntity info){entity = info;entity.SetDataEntity(this);}public CommonHelpDataEntity(DataRow row){entity=new CommonHelpEntity();entity.Id = row["Id"].ToString();entity.Code = row["Code"].ToString();entity.Name = row["Name"].ToString();entity.Contains = row["DisplayColumns"].ToString();entity.SetDataEntity(this);this.DisplayColumns = row["DisplayColumns"].ToString();this.SourceObject = row["SourceObject"].ToString();this.DataTextField = row["DataTextField"].ToString();this.DataValueField = row["DataValueField"].ToString();this.OrderFields = row["OrderFields"].ToString();this.RowId = row["Id"].ToString();//int value=(row["Category"].ToString().Trim().Length==0)?0:int.Parse(row["Category"].ToString());//this.Category = Enum.GetName(typeof(HelpTypeEnum), value);this.Category = row["Category"].ToString();this.SearchEngineId = row["SearchEngineId"].ToString();this.SelectDataObjectId = row["SelectDataObjectId"].ToString();this.DefaultValueCondition = row["DefaultValueCondition"].ToString();this.CreateTime = row["CreateTime"].ToString();this.lastUpdateTime = row["lastUpdateTime"].ToString();this.dataModeldId = row["DataModeldId"].ToString();}/// <summary>/// 关联数据实体/// </summary>/// <param name="entity"></param>public void AssociateHelpEntity(CommonHelpEntity entity){entity.SetDataEntity(this);this.entity = entity;}}}标识序列化之后的类的为： [System.Diagnostics.DebuggerStepThroughAttribute()][System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")][System.Runtime.Serialization.DataContractAttribute(Name="CommonHelpDataEntity", Namespace="")][System.SerializableAttribute()]public partial class CommonHelpDataEntity : object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {[System.NonSerializedAttribute()]private System.Runtime.Serialization.ExtensionDataObject extensionDataField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string CategoryField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string CreateTimeField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string DataTextFieldField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string DataValueFieldField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string DefaultValueConditionField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string DisplayColumnsField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string LastUpdateTimeField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string OrderFieldsField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string RowIdField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string SearchEngineIdField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string SelectDataObjectIdField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string SourceObjectField;[System.Runtime.Serialization.OptionalFieldAttribute()]private string rowId1Field;[global::System.ComponentModel.BrowsableAttribute(false)]public System.Runtime.Serialization.ExtensionDataObject ExtensionData {get {return this.extensionDataField;}set {this.extensionDataField = value;}}[System.Runtime.Serialization.DataMemberAttribute()]public string Category {get {return this.CategoryField;}set {if ((object.ReferenceEquals(this.CategoryField, value) != true)) {this.CategoryField = value;this.RaisePropertyChanged("Category");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string CreateTime {get {return this.CreateTimeField;}set {if ((object.ReferenceEquals(this.CreateTimeField, value) != true)) {this.CreateTimeField = value;this.RaisePropertyChanged("CreateTime");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string DataTextField {get {return this.DataTextFieldField;}set {if ((object.ReferenceEquals(this.DataTextFieldField, value) != true)) {this.DataTextFieldField = value;this.RaisePropertyChanged("DataTextField");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string DataValueField {get {return this.DataValueFieldField;}set {if ((object.ReferenceEquals(this.DataValueFieldField, value) != true)) {this.DataValueFieldField = value;this.RaisePropertyChanged("DataValueField");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string DefaultValueCondition {get {return this.DefaultValueConditionField;}set {if ((object.ReferenceEquals(this.DefaultValueConditionField, value) != true)) {this.DefaultValueConditionField = value;this.RaisePropertyChanged("DefaultValueCondition");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string DisplayColumns {get {return this.DisplayColumnsField;}set {if ((object.ReferenceEquals(this.DisplayColumnsField, value) != true)) {this.DisplayColumnsField = value;this.RaisePropertyChanged("DisplayColumns");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string LastUpdateTime {get {return this.LastUpdateTimeField;}set {if ((object.ReferenceEquals(this.LastUpdateTimeField, value) != true)) {this.LastUpdateTimeField = value;this.RaisePropertyChanged("LastUpdateTime");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string OrderFields {get {return this.OrderFieldsField;}set {if ((object.ReferenceEquals(this.OrderFieldsField, value) != true)) {this.OrderFieldsField = value;this.RaisePropertyChanged("OrderFields");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string RowId {get {return this.RowIdField;}set {if ((object.ReferenceEquals(this.RowIdField, value) != true)) {this.RowIdField = value;this.RaisePropertyChanged("RowId");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string SearchEngineId {get {return this.SearchEngineIdField;}set {if ((object.ReferenceEquals(this.SearchEngineIdField, value) != true)) {this.SearchEngineIdField = value;this.RaisePropertyChanged("SearchEngineId");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string SelectDataObjectId {get {return this.SelectDataObjectIdField;}set {if ((object.ReferenceEquals(this.SelectDataObjectIdField, value) != true)) {this.SelectDataObjectIdField = value;this.RaisePropertyChanged("SelectDataObjectId");}}}[System.Runtime.Serialization.DataMemberAttribute()]public string SourceObject {get {return this.SourceObjectField;}set {if ((object.ReferenceEquals(this.SourceObjectField, value) != true)) {this.SourceObjectField = value;this.RaisePropertyChanged("SourceObject");}}}[System.Runtime.Serialization.DataMemberAttribute(Name="rowId")]public string rowId1 {get {return this.rowId1Field;}set {if ((object.ReferenceEquals(this.rowId1Field, value) != true)) {this.rowId1Field = value;this.RaisePropertyChanged("rowId1");}}}public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;protected void RaisePropertyChanged(string propertyName) {System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;if ((propertyChanged != null)) {propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));}}}该标识序列化之后的类在是Reference.cs文件中找到的。要知道，当你一直在担心错过了什么的时候，其实你已经错过了旅行的意义。