在asp.net C＃创建动态复选框，单选按钮

Question

Basically I am creating a full dynamic form which has text boxes, check boxes, etc. 

When I try to add this code in a page where `EnableViewState="false"` it doesn't work but it works fine on a page where `EnableViewState="true"`. 

But I want it to work on this (`EnableViewState="false"`) page. How do I do this? 

这样的基本想法是建立一个动态的页面，在那里我可以添加尽可能多的控制，我可以只用点击一个按钮。控件可以重复。
Panel pnlTextBox; 保护无效Page_PreInit（对象发件人，EventArgs的）{

  //Create a Dynamic Panel 
      pnlTextBox = new Panel(); 
      pnlTextBox.ID = "pnlTextBox"; 
      pnlTextBox.BorderWidth = 1; 
      pnlTextBox.Width = 300; 
      this.form1.Controls.Add(pnlTextBox); 

      //Create a LinkDynamic Button to Add TextBoxes 

      //Recreate Controls 
      RecreateTextBoxControls("txtDynamic", "TextBox"); 
      RecreateDDLControls("ddlDynamic", "DropDownList"); 

    } 
    protected void Page_Load(object sender, EventArgs e) 
    { 

    } 

    protected void btnAdd_Click(object sender, EventArgs e) 
    { 
    // /* int i=Convert.ToInt32(DropDown1.SelectedValue.ToString()); 
    // if (i == 1) 
    // {*/ 
      int cnt = FindOccurence("txtDynamic"); 
    CreateTextBox("txtDynamic-" + Convert.ToString(cnt + 1)); 
    // /* } 
    // else if (i == 2) 
    // { 
    //  int cnt = FindOccurence("ddlDynamic"); 
    //  CreateDropDownList("ddlDynamic-" + Convert.ToString(cnt + 1)); 
    // } 
    // else if (i == 3) 
    // { 

    // } 
    // else if (i == 4) 
    // { 

    // } 
    // else if (i == 5) 
    // { 
    // } 
    // else if (i == 6) 
    // { 

    // } 
    // else 
    // { 
    //  Console.Write("Bawa ji ka thullu"); 

    // } 
    // */ 

    } 
    private int FindOccurence(string substr) 
    { 
     string reqstr = Request.Form.ToString(); 
     return ((reqstr.Length - reqstr.Replace(substr, "").Length)/                                      ....substr.Length); 
    } 
    private void RecreateTextBoxControls(string ctrlPrefix, string ctrlType) 
    { 
     string[] ctrls = Request.Form.ToString().Split('&'); 
     int cnt = FindOccurence(ctrlPrefix); 
     if (cnt > 0) 
     { 
      for (int k = 1; k <= cnt; k++) 
      { 
       for (int i = 0; i < ctrls.Length; i++) 
       { 
        if (ctrls[i].Contains(ctrlPrefix + "-" + k.ToString()) &&              
        !ctrls[i].Contains("EVENTTARGET")) 
         { 
         string ctrlID = ctrls[i].Split('=')[0]; 

         if (ctrlType == "TextBox") 
         { 
          CreateTextBox(ctrlID); 
         } 
         break; 
        } 
       } 
      } 
     } 
     } 
     private void RecreateDDLControls(string ctrlPrefix, string ctrlType) 
     { 
     string[] ctrls = Request.Form.ToString().Split('&'); 
     int cnt = FindOccurence(ctrlPrefix); 
     if (cnt > 0) 
     { 
      for (int k = 1; k <= cnt; k++) 
      { 
       for (int i = 0; i < ctrls.Length; i++) 
       { 
        if (ctrls[i].Contains(ctrlPrefix + "-" + k.ToString()) && 
        !ctrls[i].Contains("EVENTTARGET")) 
        { 
         string ctrlID = ctrls[i].Split('=')[0]; 

         if (ctrlType == "DropDownList") 
         { 
          CreateDropDownList(ctrlID); 
         } 
         break; 
        } 
       } 
      } 
     } 
    } 

    private void CreateDropDownList(string ID) 
    { 
     DropDownList ddl = new DropDownList(); 
     ddl.ID = ID; 
     ddl.Items.Add(new ListItem("--Select--", "")); 
     ddl.Items.Add(new ListItem("One", "1")); 
     ddl.Items.Add(new ListItem("Two", "2")); 
     ddl.Items.Add(new ListItem("Three", "3")); 
     ddl.AutoPostBack = true; 
     ddl.SelectedIndexChanged += new EventHandler(OnSelectedIndexChanged); 
     pnlTextBox.Controls.Add(ddl); 

     Literal lt = new Literal(); 
     lt.Text = "<br />"; 
     pnlTextBox.Controls.Add(lt); 
    } 
    private void CreateTextBox(string ID) 
    { 

     TextBox txt = new TextBox(); 
     txt.ID = ID; 
     txt.AutoPostBack = true; 
     txt.TextChanged += new EventHandler(OnTextChanged); 
     pnlTextBox.Controls.Add(txt); 

     Literal lt = new Literal(); 
     lt.Text = "<br />"; 
     pnlTextBox.Controls.Add(lt); 
    } 

Answer 1

，首先让我知道什么是博士？ 相同的代码适用于我。我所做的是我创建一个名为博士的小组，然后添加CbxList到面板即博士

这里是代码

*CheckBoxList CbxList = new CheckBoxList(); 
    TextBox txtBox = new TextBox(); 
    RadioButtonList rbList = new RadioButtonList(); 
    rbList.Items.Add("First Radio Button List"); 
    rbList.Items.Add("Second Radio Button List"); 
    rbList.Items.Add("Third Radio Button List"); 
    rbList.Items.Add("Fourth Radio Button List"); 
    rbList.Items.Add("Fifth Radio Button List"); 

    RadioButton rbTest = new RadioButton(); 
    rbTest.Text = "Simple Radio Button"; 
    txtBox.Text = "Simple Text Box"; 
    CbxList.ID = "Cbx"; 
    for (int i = 0; i < intCount; i++) 
    { 
     CbxList.Items.Add(new ListItem(Convert.ToChar(i + 65).ToString(), Convert.ToChar(i + 65).ToString())); 
    } 

    //Adding controls to Panel 

    ph.Controls.Add(rbTest); 

    ph.Controls.Add(CbxList); 

    ph.Controls.Add(rbList); 

    ph.Controls.Add(txtBox); 

    ViewState["ListCreated"] = false;*