ValidationErrorCollection Constructors

Reference

Definition

Namespace:: System.Workflow.ComponentModel.Compiler

Assembly:: System.Workflow.ComponentModel.dll

Important

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Initializes a new instance of the ValidationErrorCollection class.

Overloads

ValidationErrorCollection()	Initializes a new instance of the ValidationErrorCollection class.
ValidationErrorCollection(IEnumerable<ValidationError>)	Initializes a new instance of the ValidationErrorCollection class from an IEnumerable collection of type ValidationError.
ValidationErrorCollection(ValidationErrorCollection)	Initializes a new instance of the ValidationErrorCollection class by using a ValidationErrorCollection.

Remarks

The following example shows how to create and manipulate a validation error collection as part of a custom validation routine.

This code example is part of the Send Email SDK sample and is from the SendMailActivity.cs file. For more information, see Send Mail Activity.

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()

Initializes a new instance of the ValidationErrorCollection class.

public:
 ValidationErrorCollection();

public ValidationErrorCollection ();

Public Sub New ()

Examples

The following example shows how to create and manipulate a validation error collection as part of a custom validation routine.

This code example is part of the Send Email SDK sample and is from the SendMailActivity.cs file. For more information, see Send Mail Activity.

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

Applies to

ValidationErrorCollection(IEnumerable<ValidationError>)

Initializes a new instance of the ValidationErrorCollection class from an IEnumerable collection of type ValidationError.

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))

Parameters

value: IEnumerable<ValidationError>

The IEnumerable collection of type ValidationError.

Exceptions

ArgumentNullException

value is null.

Applies to

ValidationErrorCollection(ValidationErrorCollection)

Initializes a new instance of the ValidationErrorCollection class by using a ValidationErrorCollection.

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)

Parameters

value: ValidationErrorCollection

A ValidationErrorCollection that contains validation errors.

Examples

The following example shows how to create and manipulate a validation error collection as part of a custom validation routine.

This code example is part of the Send Email SDK sample and is from the SendMailActivity.cs file. For more information, see Send Mail Activity.

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

Applies to

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ValidationErrorCollection Constructors

Definition

Overloads

Remarks

ValidationErrorCollection()

Examples

Applies to

ValidationErrorCollection(IEnumerable<ValidationError>)

Parameters

Exceptions

Applies to

ValidationErrorCollection(ValidationErrorCollection)

Parameters

Examples

Applies to

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