Makale
11/18/2011

ErrObject Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

The ErrObject module contains properties and procedures used to identify and handle run-time errors using the Err object.

Inheritance Hierarchy

System.Object
Microsoft.VisualBasic.ErrObject

Namespace: Microsoft.VisualBasic
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

Syntax

'Declaration
Public NotInheritable Class ErrObject

public sealed class ErrObject

The ErrObject type exposes the following members.

Properties

	Name	Description
	Description	Returns or sets a String expression containing a descriptive string associated with an error. Read/write.
	Erl	Returns an integer indicating the line number of the last executed statement. Read-only.
	Number	Returns or sets a numeric value specifying an error. Read/write.

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Methods

	Name	Description
	Clear	Clears all property settings of the Err object.
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetException	Returns the exception representing the error that occurred.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Raise	Generates a run-time error; can be used instead of the Error statement.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Examples

This example uses the properties of the Err object in constructing an error-message dialog box. Notice what happens when you use the Clear method first: When you then generate a Visual Basic error with the Raise method, Visual Basic's default values become the properties of the Err object.

Dim Msg As String
' If an error occurs, construct an error message.
On Error Resume Next   ' Defer error handling.
Err.Clear
Err.Raise(6)   ' Generate an "Overflow" error.
' Check for error, then show message.
If Err.Number <> 0 Then
    Msg = "Error # " & Str(Err.Number) & vbCrLf & Err.Description
End If

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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