Friday, January 4, 2013

Displaying Current User Name as a Virtual Field

Suppose that you need to display the name of the current user. Let’s implement a virtual field that will display the current user name on the Customers form.

Start the Project Designer. In the Project Explorer, switch to the Controllers tab. Right-click on Customers / Fields node, and press New Field.

Creating a new field in Customers controller.

Use the following values:

Property Value
Name CurrentUserName
Type String
Length 40
Allow null values. true
The value of this field is computed at run-time by SQL expression. true
SQL Formula
@BusinessRules_UserName
Label Current User
Values of this field cannot be edited. true

Press OK to save.

Let’s add this field to the edit form. Drop Customers / Fields / CurrentUserName (String(40)), read-only) node onto Customers / Views / editForm1 node. This will instantiate a CurrentUserName data field.

Dropping 'CurrentUserName' field on view 'editForm1'.     Data field 'CurrentUserName' instantiated in view 'editForm1'.

On the toolbar, press Browse. Navigate to the Customers page and select a record. The Current User data field will display the user name at the bottom of the form.

'Current User' displays the current user name at the bottom of the form.

Log out, and log in as user / user123%. The current user will change to reflect the current user account.

The current user value has been updated.

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