Calculated expressions versus literals

All property expressions start with an equals sign (=). This indicates that the property must be computed rather than interpreted as a fixed series of characters.

The following examples show two property expressions for the ToolTipText property of a Button object:

Example 1

This example defines a literal value: 2+3

The tooltip will literally display the characters: 2+3

Example 2

This example defines a calculated value: =2+3

The tooltip will display: 5