asp.net barcode reader sdk Who Is the User in Microsoft Office

Making QR Code ISO/IEC18004 in Microsoft Office Who Is the User

Who Is the User
Generate Quick Response Code In Visual C#
Using Barcode printer for Visual Studio .NET Control to generate, create QR image in .NET applications.
QR-Code Generation In .NET Framework
Using Barcode creation for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
The first fact that must be established is who the user is and who has done the deed You can use an API call to find out who is actually using your application and altering data Create a new module by clicking Insert | Module on the VBE menu Enter the following declaration into the General area at the top of the module:
Printing Denso QR Bar Code In Visual Studio .NET
Using Barcode drawer for VS .NET Control to generate, create QR Code image in VS .NET applications.
QR Code Creator In VB.NET
Using Barcode creation for VS .NET Control to generate, create Quick Response Code image in .NET applications.
Public Declare Function GetUserName Lib "advapi32dll" Alias _ "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
ANSI/AIM Code 128 Generation In Java
Using Barcode maker for Java Control to generate, create Code128 image in Java applications.
EAN 13 Generation In Visual Basic .NET
Using Barcode creation for VS .NET Control to generate, create GTIN - 13 image in VS .NET applications.
Microsoft Access 2010 VBA Macro Programming
Drawing GTIN - 13 In None
Using Barcode printer for Microsoft Word Control to generate, create EAN 13 image in Word applications.
UCC - 12 Generator In Visual Basic .NET
Using Barcode creation for VS .NET Control to generate, create EAN 128 image in .NET framework applications.
This sets up a link to the function GetUserName in the dynamic link library advapi32 (which is supplied as part of the Windows operating system) Next, enter a function to return the user name Enter the following code in the same module:
ECC200 Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
Painting UPC-A Supplement 5 In None
Using Barcode encoder for Microsoft Excel Control to generate, create UPC Symbol image in Microsoft Excel applications.
Public Function ReturnUserName() Dim strUser As String, X As Integer strUser = Space$(256) X = GetUserName(strUser, 256) strUser = RTrim(strUser) ReturnUserName = Left(strUser, Len(strUser) - 1) End Function
Create Code 3/9 In Objective-C
Using Barcode creator for iPhone Control to generate, create Code 39 image in iPhone applications.
GTIN - 12 Reader In Visual Basic .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
The function ReturnUserName will always provide the windows login of the current user Because this is a public function, it can be used in all the form modules
Print Data Matrix 2d Barcode In None
Using Barcode encoder for Excel Control to generate, create Data Matrix ECC200 image in Microsoft Excel applications.
UCC - 12 Scanner In Visual C#.NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET applications.
The Audit Trail on the Table Structure
UPC Code Creation In None
Using Barcode drawer for Word Control to generate, create Universal Product Code version A image in Word applications.
Creating Barcode In None
Using Barcode encoder for Font Control to generate, create barcode image in Font applications.
For the purposes of this example, I am using the Northwind database and the Customers table You can access the Northwind database by loading Access and clicking Sample in the center Navigation pane (Available Templates) and then clicking the Northwind icon Add the AuditTrail field to the Customers table On each table where you want an audit trail, you must add an extra field to hold the audit trail information Right-click the table name in the Navigation pane of Access and choose design mode Add a field as Memo type called AuditTrail Save the table design I have chosen a Memo type field so as to demonstrate how you can record every change a user makes to the data However, this may increase the size of the database too much and you may wish to use a standard text field instead, one that holds less information
ECC200 Encoder In Java
Using Barcode encoder for Java Control to generate, create Data Matrix 2d barcode image in Java applications.
Data Matrix Generation In Visual Basic .NET
Using Barcode generator for Visual Studio .NET Control to generate, create ECC200 image in Visual Studio .NET applications.
Using Events to Create the Audit Trail
EAN 13 Decoder In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
GS1 - 12 Creator In Java
Using Barcode maker for BIRT Control to generate, create GS1 - 12 image in Eclipse BIRT applications.
Your table will act as the data feed for a form In the case of the Customers table, the Customers List form is a convenient one to use Open this form in Design mode and right-click the form Click Build Event in the pop-up menu and click Code Builder in the following window In the VBE module for the form, click the drop-down in the top-left corner of the module and click Form Click the drop-down in the top-right corner and click AfterUpdate Insert the following code into this event:
Dim RecSet As Recordset, Temp As Variant Set RecSet = CurrentDbOpenRecordset("select * from Customers where ID=" & MeID)
25: Creating Audit Trails on Tables
Temp = RecSet!AuditTrail Temp = Temp & "Edit" & "|" & ReturnUserName & "|" & Now() & "|"
CurrentDbExecute ("update Customers set AuditTrail='" & Temp & "' where ID=" & MeID)
This code sets up two variables using the Dim statement, one as a Recordset object and one as a variant The reason that variant is used and not string is because initially this object has to be loaded with a null value and a string will not take a null The Recordset object is then set to point to the Customers table using the current record ID So long as the ID field is included in the data source for the form, you can refer to it using the Me object, even if it is not actually a field on the form The existing value of the AuditTrail field is loaded into the variable Temp (this is the point at which it may contain a Null value) The name of the Action (in this case, Edit), the user name, and the current date and time are all concatenated onto Temp using vertical bars as separators Temp now holds the latest details of the audit trail plus the previous details An Execute statement using an update query is then used to write back the new value of the AuditTrail field, and the RecSet object is closed You also need to add this same procedure to the BeforeInsert event To get to the BeforeInsert event, right-click the form and select Build Event Click Code Builder in the pop-up window and the VBE window for the form will be displayed Click Form in the top-left drop-down of the module window and click BeforeInsert in the top-right drop-down of the code module Change the action in the concatenated string to Insert instead of Edit Open the Customer List form in View mode and make a few changes to the data Open the Customers table and look at the AuditTrail field You will see that the information is starting to build up as to who did what and when You will now see why a memo field was used for the AuditTrail field and not text Text only allows 255 characters and this would soon be exhausted in a database with plenty of updates If you find you have to use a text field for the AuditTrail, do not concatenate with the previous value only store the current value:
Dim Temp As Variant Temp = Temp & "Edit" & "|" & ReturnUserName & "|" & Now() & "|" CurrentDbExecute ("update Customers set AuditTrail='" & Temp & "' where ID=" & MeID) _
One of the problems you may have noticed is that if the user deletes a record, then all of your wonderful audit trail disappears together with the record The way around this is not to allow users to delete records by setting the form property Allow Deletions to No
Copyright © OnBarcode.com . All rights reserved.