What is the syntax we can use for expressions (e.g., for the VisibleExpression property)?

By default, Document Creator follows the C# syntax for expressions (you can also switch to VisualBasic.NET syntax via the Report Options window, under the Script tab). Here are some examples of expressions in the default C# syntax:

Syntax Expression Example Explanation
[number] == 0
[SalesLine.LineAmount] == 0
Line amount EQUAL TO 0
[number] != 0
[SalesLine.LineAmount] != 0
Line amount NOT EQUAL TO 0
[textvariable] != ""
[InvHdr.YourReference] != ""
"Your Reference" field of Invoice header NOT EQUAL TO empty
![boolean]
![SalesHeader.ShowLotSN]
NOT Show Lot-/Serial nos. (Negation)
[expr1] && [expr2]
([SalesLine.TypeNo] != 0) && ([SalesLine.TypeNo] != 3)
Line type not equal to 0 AND Line type not equal to 3
[expr1] || [expr2]
([SalesLine.TypeNo] == 0) || ([SalesLine.TypeNo] == 3)
Line type equal to 0 OR Line type equal to 3
[number] >= 0
[SalesLine.Amount] >= 0
Line amount GREATER THAN OR EQUAL TO 0
[number] <= 0
[SalesLine.Amount] <= 0
Line amount LESS THAN OR EQUAL TO 0
[datevar] != default(DateTime)
[SalesHdr.DueDate] != default(DateTime)
Date has been entered (date <> 0D)
[textvar].StartsWith("Hello")
[InvHdr.FieldName].StartsWith("Hello")
Text field STARTS WITH text "Hello" (similarly you can use: Contains and EndsWith)