using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace FineUI.Examples.form { public partial class form_validate : PageBase { protected void Page_Load(object sender, EventArgs e) { } protected void btnRegister_Click(object sender, EventArgs e) { if (tbxUserName.Text == "admin") { tbxUserName.MarkInvalid(String.Format("{0} 是保留字,请另外选择!", tbxUserName.Text)); Alert.ShowInTop("服务器端验证失败!"); } } } }