ValidationErrorCollection 构造函数

参考

定义

命名空间:: System.Workflow.ComponentModel.Compiler

程序集:: System.Workflow.ComponentModel.dll

重要

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重载

ValidationErrorCollection()	初始化 ValidationErrorCollection 类的新实例。
ValidationErrorCollection(IEnumerable<ValidationError>)	从IEnumerable类型ValidationError集合初始化类的新实例ValidationErrorCollection。
ValidationErrorCollection(ValidationErrorCollection)	使用 ValidationErrorCollection 初始化 ValidationErrorCollection 类的新实例。

注解

下面的示例演示如何作为自定义验证例程的一部分来创建和操作验证错误集合。

此代码示例是“发送电子邮件 SDK”示例的一部分，来自 SendMailActivity.cs 文件。有关详细信息，请参阅 “发送邮件活动”。

public class SendEmailValidator : System.Workflow.ComponentModel.Compiler.ActivityValidator
{
    // Define private constants for the Validation Errors
    private const int InvalidToAddress = 1;
    private const int InvalidFromAddress = 2;
    private const int InvalidSMTPPort = 3;

    //customizing the default activity validation
    public override ValidationErrorCollection ValidateProperties(ValidationManager manager, object obj)
    {

        // Create a new collection for storing the validation errors
        ValidationErrorCollection validationErrors = base.ValidateProperties(manager, obj);

        SendEmailActivity activity = obj as SendEmailActivity;
        if (activity != null)
        {
            // Validate the Email and SMTP Properties
            this.ValidateEmailProperties(validationErrors, activity);
            this.ValidateSMTPProperties(validationErrors, activity);
        }
        return validationErrors;
    }

Public Class SendEmailValidator
    Inherits System.Workflow.ComponentModel.Compiler.ActivityValidator

    ' Define private constants for the Validation Errors 
    Private Const InvalidToAddress As Integer = 1
    Private Const InvalidFromAddress As Integer = 2
    Private Const InvalidSMTPPort As Integer = 3

    ' customizing the default activity validation
    Public Overrides Function ValidateProperties(ByVal manager As ValidationManager, ByVal obj As Object) As ValidationErrorCollection

        ' Create a new collection for storing the validation errors
        Dim validationErrors As New ValidationErrorCollection()

        Dim activity As SendEmailActivity = TryCast(obj, SendEmailActivity)

        If activity IsNot Nothing Then

            ' Validate the Email and SMTP Properties
            Me.ValidateEmailProperties(validationErrors, activity)
            Me.ValidateSMTPProperties(validationErrors, activity)

            ' Raise an exception if we have ValidationErrors
            If validationErrors.HasErrors Then

                Dim validationErrorsMessage As String = String.Empty

                For Each validationError As ValidationError In validationErrors
                    validationErrorsMessage += _
                        String.Format("Validation Error:  Number 0} - '1}' \n", _
                        validationError.ErrorNumber, validationError.ErrorText)
                Next

                ' Throw a new exception with the validation errors.
                Throw New InvalidOperationException(validationErrorsMessage)
            End If
        End If
        Return validationErrors
    End Function

ValidationErrorCollection()

初始化 ValidationErrorCollection 类的新实例。

public:
 ValidationErrorCollection();

public ValidationErrorCollection ();

Public Sub New ()

示例

下面的示例演示如何作为自定义验证例程的一部分来创建和操作验证错误集合。

此代码示例是“发送电子邮件 SDK”示例的一部分，来自 SendMailActivity.cs 文件。有关详细信息，请参阅 “发送邮件活动”。

public class SendEmailValidator : System.Workflow.ComponentModel.Compiler.ActivityValidator
{
    // Define private constants for the Validation Errors
    private const int InvalidToAddress = 1;
    private const int InvalidFromAddress = 2;
    private const int InvalidSMTPPort = 3;

    //customizing the default activity validation
    public override ValidationErrorCollection ValidateProperties(ValidationManager manager, object obj)
    {

        // Create a new collection for storing the validation errors
        ValidationErrorCollection validationErrors = base.ValidateProperties(manager, obj);

        SendEmailActivity activity = obj as SendEmailActivity;
        if (activity != null)
        {
            // Validate the Email and SMTP Properties
            this.ValidateEmailProperties(validationErrors, activity);
            this.ValidateSMTPProperties(validationErrors, activity);
        }
        return validationErrors;
    }

Public Class SendEmailValidator
    Inherits System.Workflow.ComponentModel.Compiler.ActivityValidator

    ' Define private constants for the Validation Errors 
    Private Const InvalidToAddress As Integer = 1
    Private Const InvalidFromAddress As Integer = 2
    Private Const InvalidSMTPPort As Integer = 3

    ' customizing the default activity validation
    Public Overrides Function ValidateProperties(ByVal manager As ValidationManager, ByVal obj As Object) As ValidationErrorCollection

        ' Create a new collection for storing the validation errors
        Dim validationErrors As New ValidationErrorCollection()

        Dim activity As SendEmailActivity = TryCast(obj, SendEmailActivity)

        If activity IsNot Nothing Then

            ' Validate the Email and SMTP Properties
            Me.ValidateEmailProperties(validationErrors, activity)
            Me.ValidateSMTPProperties(validationErrors, activity)

            ' Raise an exception if we have ValidationErrors
            If validationErrors.HasErrors Then

                Dim validationErrorsMessage As String = String.Empty

                For Each validationError As ValidationError In validationErrors
                    validationErrorsMessage += _
                        String.Format("Validation Error:  Number 0} - '1}' \n", _
                        validationError.ErrorNumber, validationError.ErrorText)
                Next

                ' Throw a new exception with the validation errors.
                Throw New InvalidOperationException(validationErrorsMessage)
            End If
        End If
        Return validationErrors
    End Function

适用于

ValidationErrorCollection(IEnumerable<ValidationError>)

从IEnumerable类型ValidationError集合初始化类的新实例ValidationErrorCollection。

public:
 ValidationErrorCollection(System::Collections::Generic::IEnumerable<System::Workflow::ComponentModel::Compiler::ValidationError ^> ^ value);

public ValidationErrorCollection (System.Collections.Generic.IEnumerable<System.Workflow.ComponentModel.Compiler.ValidationError> value);

new System.Workflow.ComponentModel.Compiler.ValidationErrorCollection : seq<System.Workflow.ComponentModel.Compiler.ValidationError> -> System.Workflow.ComponentModel.Compiler.ValidationErrorCollection

Public Sub New (value As IEnumerable(Of ValidationError))

参数

value: IEnumerable<ValidationError>

IEnumerable类型的ValidationError集合。

例外

ArgumentNullException

value 为 null。

适用于

ValidationErrorCollection(ValidationErrorCollection)

使用 ValidationErrorCollection 初始化 ValidationErrorCollection 类的新实例。

public:
 ValidationErrorCollection(System::Workflow::ComponentModel::Compiler::ValidationErrorCollection ^ value);

public ValidationErrorCollection (System.Workflow.ComponentModel.Compiler.ValidationErrorCollection value);

new System.Workflow.ComponentModel.Compiler.ValidationErrorCollection : System.Workflow.ComponentModel.Compiler.ValidationErrorCollection -> System.Workflow.ComponentModel.Compiler.ValidationErrorCollection

Public Sub New (value As ValidationErrorCollection)

参数

value: ValidationErrorCollection

包含验证错误的 ValidationErrorCollection。

示例

下面的示例演示如何作为自定义验证例程的一部分来创建和操作验证错误集合。

此代码示例是“发送电子邮件 SDK”示例的一部分，来自 SendMailActivity.cs 文件。有关详细信息，请参阅 “发送邮件活动”。

public class SendEmailValidator : System.Workflow.ComponentModel.Compiler.ActivityValidator
{
    // Define private constants for the Validation Errors
    private const int InvalidToAddress = 1;
    private const int InvalidFromAddress = 2;
    private const int InvalidSMTPPort = 3;

    //customizing the default activity validation
    public override ValidationErrorCollection ValidateProperties(ValidationManager manager, object obj)
    {

        // Create a new collection for storing the validation errors
        ValidationErrorCollection validationErrors = base.ValidateProperties(manager, obj);

        SendEmailActivity activity = obj as SendEmailActivity;
        if (activity != null)
        {
            // Validate the Email and SMTP Properties
            this.ValidateEmailProperties(validationErrors, activity);
            this.ValidateSMTPProperties(validationErrors, activity);
        }
        return validationErrors;
    }

Public Class SendEmailValidator
    Inherits System.Workflow.ComponentModel.Compiler.ActivityValidator

    ' Define private constants for the Validation Errors 
    Private Const InvalidToAddress As Integer = 1
    Private Const InvalidFromAddress As Integer = 2
    Private Const InvalidSMTPPort As Integer = 3

    ' customizing the default activity validation
    Public Overrides Function ValidateProperties(ByVal manager As ValidationManager, ByVal obj As Object) As ValidationErrorCollection

        ' Create a new collection for storing the validation errors
        Dim validationErrors As New ValidationErrorCollection()

        Dim activity As SendEmailActivity = TryCast(obj, SendEmailActivity)

        If activity IsNot Nothing Then

            ' Validate the Email and SMTP Properties
            Me.ValidateEmailProperties(validationErrors, activity)
            Me.ValidateSMTPProperties(validationErrors, activity)

            ' Raise an exception if we have ValidationErrors
            If validationErrors.HasErrors Then

                Dim validationErrorsMessage As String = String.Empty

                For Each validationError As ValidationError In validationErrors
                    validationErrorsMessage += _
                        String.Format("Validation Error:  Number 0} - '1}' \n", _
                        validationError.ErrorNumber, validationError.ErrorText)
                Next

                ' Throw a new exception with the validation errors.
                Throw New InvalidOperationException(validationErrorsMessage)
            End If
        End If
        Return validationErrors
    End Function

适用于

通过

ValidationErrorCollection 构造函数

定义

重载

注解

ValidationErrorCollection()

示例

适用于

ValidationErrorCollection(IEnumerable<ValidationError>)

参数

例外

适用于

ValidationErrorCollection(ValidationErrorCollection)

参数

示例

适用于

其他资源