using System; using System.Collections.Generic; using FineUI; namespace DotNetOA.Web.task { public partial class start : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!this.IsPostBack) { CheckBoxList1.Items.Add("Text1", "Value1"); CheckBoxList1.Items.Add("Text2", "Value2"); CheckBoxList1.Items.Add("Text3", "Value3"); CheckBoxList1.Items.Add("Text4", "Value4"); CheckBoxList1.Items.Add("Text5", "Value5"); } } protected void btn_Submit_Click(object sender, EventArgs e) { Button1.Text = CheckBoxList1.SelectedValueArray.Length.ToString(); } } }