WebEntryField.Hint
From Xojo Documentation
Property (As String )
aWebTextControl.Hint = newStringValue
or
StringValue = aWebTextControl.Hint
New in 2020r1
Supported for all project types and targets.
or
StringValue = aWebTextControl.Hint
New in 2020r1
Supported for all project types and targets.
Text that appears inside the control providing a hint about what to enter.
Notes
On Windows and Linux, the Hint only appears when the control does not have focus.
Example
This example is in the Opening event of the control:
Me.Hint = "Last Name"