ErrObject Class
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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 | |
|---|---|---|
.gif "Public property") |
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. |
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Number | Returns or sets a numeric value specifying an error. Read/write. |
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Methods
| Name | Description | |
|---|---|---|
.gif "Public method") |
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.) |
.gif "Protected method") |
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. |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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Raise | Generates a run-time error; can be used instead of the Error statement. |
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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.