This section of the manual was created to give you an overview on how to use the Input Validator control in order to validate input in controls outside of the grid. 

This overview is composed of various sections that explain in a sequential order the concepts behind the Input Validator control. It is highly recommended that you read through this overview in the predefined order. 

The Input Validator control is compatible with the following input components:

When a TextBox or ComboBox control contains an invalid value, an error icon appears next to that control. When the mouse hovers over this icon, a validation error message is displayed, explaining the reason for the error (for details on error messages, see Setting Up Default Error Messages and Customizing Error Messages). For details on how to set up validation on these input components, see Setting Up Validation Expressions Visually. 

When an Xceed Grid for WinForms cell contains an invalid value, the error icon appears in the row selector. Other characteristics can be set in the Properties window of a Grid for WinForms cell, such as the background color of a cell containing an invalid value. For details on how to set up validation on Grid for WinForms cells, see Setting Up Validation for Grid for WinForms Cells.