ErrObject Class

Reference

Definition

Namespace:: Microsoft.VisualBasic

Assembly:: Microsoft.VisualBasic.Core.dll

Assembly:: Microsoft.VisualBasic.dll

Source:: ErrObject.vb

Source:: ErrObject.vb

Source:: ErrObject.vb

Important

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

public ref class ErrObject sealed

public sealed class ErrObject

type ErrObject = class

Public NotInheritable Class ErrObject

Inheritance: Object
ErrObject

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) & " was generated by " _  
        & Err.Source & ControlChars.CrLf & Err.Description  
    MsgBox(Msg, MsgBoxStyle.Information, "Error")  
End If

Remarks

The ErrObject module supports the Err object. For more information, see Err.

Properties

Description	Returns or sets a `String` expression containing a descriptive string associated with an error. Read/write.
Erl	Gets an integer indicating the line number of the last executed statement.
HelpContext	Returns or sets an `Integer` containing the context ID for a topic in a Help file. Read/write.
HelpFile	Returns or sets a `String` expression containing the fully qualified path to a Help file. Read/write.
LastDllError	Gets a system error code produced by a call to a dynamic-link library (DLL).
Number	Returns or sets a numeric value specifying an error. Read/write.
Source	Returns or sets a `String` expression specifying the name of the object or application that originally generated the error. Read/write.

Methods

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)
GetException()	Returns the exception representing the error that occurred.
GetHashCode()	Serves as the default hash function. (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(Int32, Object, Object, Object, Object)	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)

Applies to

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