ValidationError Class
Definition
Important
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Represents the base class for all validation errors.
public ref class ValidationError sealed
[System.Serializable]
public sealed class ValidationError
[<System.Serializable>]
type ValidationError = class
Public NotInheritable Class ValidationError
- Inheritance
-
ValidationError
- Attributes
Examples
The following example shows how to create and manipulate validation errors as part of a custom validation routine.
This code example is part of the Send Mail SDK Sample and is from the SendEMailActivity.cs file. For more information, see Send Mail Activity.
private void ValidateEmailProperties(ValidationErrorCollection validationErrors, SendEmailActivity activity)
{
// Validate the To property
if (string.IsNullOrEmpty(activity.To))
{
validationErrors.Add(ValidationError.GetNotSetValidationError(SendEmailActivity.ToProperty.Name));
}
else if (!activity.To.Contains("@"))
{
validationErrors.Add(new ValidationError("Invalid To email address", InvalidToAddress, false, SendEmailActivity.ToProperty.Name));
}
// Validate the From property
if (string.IsNullOrEmpty(activity.From))
{
validationErrors.Add(ValidationError.GetNotSetValidationError(SendEmailActivity.FromProperty.Name));
}
else if (!activity.From.Contains("@"))
{
validationErrors.Add(new ValidationError("Invalid From email address", InvalidFromAddress, false, SendEmailActivity.FromProperty.Name));
}
}
Private Sub ValidateEmailProperties(ByVal validationErrors As ValidationErrorCollection, ByVal activity As SendEmailActivity)
'Validate the To property
If String.IsNullOrEmpty(activity.EmailTo) Then
Dim validationError As ValidationError = System.Workflow.ComponentModel.Compiler.ValidationError.GetNotSetValidationError(SendEmailActivity.ToProperty.Name)
validationErrors.Add(validationError)
ElseIf Not activity.EmailTo.Contains("@") Then
Dim validationError As New ValidationError("Invalid To email address", _
InvalidToAddress, False, SendEmailActivity.ToProperty.Name)
validationErrors.Add(validationError)
End If
' Validate the From property
If String.IsNullOrEmpty(activity.FromEmail) Then
validationErrors.Add(ValidationError.GetNotSetValidationError(SendEmailActivity.FromEmailProperty.Name))
ElseIf Not activity.FromEmail.Contains("@") Then
Dim validationError As New ValidationError("Invalid From email address", _
InvalidFromAddress, False, SendEmailActivity.FromEmailProperty.Name)
validationErrors.Add(validationError)
End If
End Sub
Remarks
Note
This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5.
Constructors
ValidationError(String, Int32) |
Initializes a new instance of the ValidationError class; initializes the error text and error numbers for this instance. |
ValidationError(String, Int32, Boolean) |
Initializes a new instance of the ValidationError class, initializes the error text, error number and error type for this instance. |
ValidationError(String, Int32, Boolean, String) |
Initializes a new instance of the ValidationError class, initializing the error text, the error number, the error type and the property name associated with the error. |
Properties
ErrorNumber |
Gets the error number of this instance. |
ErrorText |
Gets the error text for this instance. |
IsWarning |
Gets a value that indicates whether this instance is a warning. |
PropertyName |
Gets or sets the name of the property that failed to validate. |
UserData |
Gets an IDictionary for the definition and storage of user-defined data related to this instance. |
Methods
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetNotSetValidationError(String) |
Creates a new validation error defined for the error type of a property not being set. |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Provides a string representation of this instance incorporating the error type (error or warning) the error number and the error text. |