共用方式為


Error.Number Property (DAO)

Returns a numeric value specifying an error.

Syntax

expression .Number

expression A variable that represents an Error object.

Remarks

Use the Number property to determine the error that occurred. The value of the property corresponds to a unique trap number that corresponds to an error condition.

Example

This example forces an error, traps it, and displays the Description, Number, Source, HelpContext, and HelpFile properties of the resulting Error object.

Sub DescriptionX() 
 
 Dim dbsTest As Database 
 
 On Error GoTo ErrorHandler 
 
 ' Intentionally trigger an error. 
 Set dbsTest = OpenDatabase("NoDatabase") 
 
 Exit Sub 
 
ErrorHandler: 
 Dim strError As String 
 Dim errLoop As Error 
 
 ' Enumerate Errors collection and display properties of 
 ' each Error object. 
 For Each errLoop In Errors 
 With errLoop 
 strError = _ 
 "Error #" & .Number & vbCr 
 strError = strError & _ 
 " " & .Description & vbCr 
 strError = strError & _ 
 " (Source: " & .Source & ")" & vbCr 
 strError = strError & _ 
 "Press F1 to see topic " & .HelpContext & vbCr 
 strError = strError & _ 
 " in the file " & .HelpFile & "." 
 End With 
 MsgBox strError 
 Next 
 
 Resume Next 
 
End Sub