我需要用StateView保存上次的值，但是，运行就报错，如果去掉StateView就不会有错误。
在网上搜索了说加一个什么[Serializable]，但是加了也是完全没有用。
不知道哪里出现了问题，望大家指教。
- C# code
[Serializable]public partial class _Default : System.Web.UI.Page { RadioButton[] radYes ; RadioButton[] radNo ; public static int num = 0; protected void Page_Load(object sender, EventArgs e) { if (!this.IsPostBack) { radYes =new RadioButton[47]; radNo = new RadioButton[47]; displaySource(); } else { radYes = (RadioButton[])ViewState["radYes"]; } } public void displaySource() { StreamReader sr = new StreamReader(Server.MapPath("~/source.txt"), Encoding.Default); TableRow tr; TableCell tc; int count = 0; while (!sr.EndOfStream) { count++; string txt = sr.ReadLine(); string[] content = txt.Split('@'); tr= new TableRow(); tc = new TableCell(); tc.Text = content[0]; tr.Cells.Add(tc); radYes[count - 1] = new RadioButton(); radYes[count-1].Text = "是"; radYes[count - 1].ID = "yes" + count; radYes[count - 1].Attributes.Add("value", content[1]); radYes[count - 1].GroupName = "e" + count; tc = new TableCell(); tc.Controls.Add(radYes[count - 1]); tr.Cells.Add(tc); radNo[count - 1] = new RadioButton(); radNo[count - 1].Text = "不是 "; radNo[count - 1].ID = "no" + count; radNo[count - 1].Attributes.Add("value", content[1]); radNo[count - 1].GroupName = "e" + count; tc = new TableCell(); tc.Controls.Add(radNo[count - 1]); tr.Cells.Add(tc); tblDisplay.Rows.Add(tr); } num = count; ViewState["radYes"] = radYes; } protected void btnSubmit_Click(object sender, EventArgs e) { //ViewState["radYes"] = counter; int[] type = new int[9]; for (int i = 0; i < radYes.Length; i++) { if (radYes[i].Checked) { int res = int.Parse(radYes[i].ID.Substring(3, 1)); type[res - 1]++; } } for (int i = 0; i < type.Length; i++) { Response.Write((i+1)+"号性格: "+type[i].ToString()+"<br/>"); } }}------解决方案--------------------------------------------------------
RadioButton不可序列化，并不是你在webpage里加个Serializable就可以解决，你应把RadioButton中相关的值保存下来，而不是保存RadioButton控件。
------解决方案--------------------------------------------------------
public void displaySource()
改成
public RadioButton[] displaySource() 返回RadioButton[]类型，不用ViewState了
------解决方案--------------------------------------------------------
楼上正解.....