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- 单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You add a TextBox control named TextBox1. You write the following code segment for validation: protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args) { DateTime dt = String.IsNullOrEmpty(args.Value) ? DateTime.Now : Convert.ToDateTime(args.Value); args.IsValid = (DateTime.Now - dt).Days < 10; } You need to validate the value of TextBox1. Which code fragment should you add to the Web page? ()
A、A
B、B
C、C
D、D
- A
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