KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
I have the following regex set as the ValidationExpression property on a RegularExpressionValidator in a web form. When I enter an illegal character in the validated control, the validator detects it and shows an error message. <appSettings> <add key="categoryPattern" value="^[a-zA-Z0-9_+\-() ]{1,50}$" /> </appSettings> My validator: <asp:RegularExpressionValidator ValidationExpression="<%$ AppSettings:categoryPattern %>" My server side validation: Regex rex = new Regex(ConfigurationManager.AppSettings["categoryPattern"]); if (!rex.Match(categoryName).Success) { throw new ArgumentException("CategoryName must match expression: " + rex); As you can see, exactly the same pattern is applied client side and server side. However, when I clear the validated control and submit an empty string, the validator thinks it's OK, and I get an error from my server side validation. Anyone know what is wrong here, except for the broken contract of the RegularExpressionValidator?
Tags (comma-separated)
Save Edits
Cancel