July 2002
Beginner
720 pages
14h 35m
English
Content preview from A Programmer's Guide to .NET
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7.5. Validation controls
Validation controls are used along with an input control to test what the user enters for that input control. Validation controls can check for a required field, test against a specific value pattern of characters, and so on.
Only a subset of HTML and web server controls can work with validation controls. Before using the control, check if it has a ValidationPropertyAttribute. The following controls can be used with validation controls:
HTMLInputText;
HTMLTextArea;
HTMLSelect;
HTMLInputFile;
TextBox;
DropDownList;
ListBox;
RadioButtonList.
All validation controls have a set of common properties defined by the ancestor class BaseValidator. These properties are listed overleaf.
ControlToValidate Specifies the ID of the input ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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