ValidationError Class
Represents the base class for all validation errors.
Namespace: System.Workflow.ComponentModel.Compiler
Assembly: System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)
The ValidationError type exposes the following members.
| Name | Description | |
|---|---|---|
 | 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. |
| Name | Description | |
|---|---|---|
| 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. |
| Name | Description | |
|---|---|---|
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetNotSetValidationError | 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.) |
| ToString | Provides a string representation of this instance incorporating the error type (error or warning) the error number and the error text. (Overrides Object.ToString().) |
| Note |
|---|
This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5. |
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 e-mail 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 e-mail address", InvalidFromAddress, false, SendEmailActivity.FromProperty.Name)); } }
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
