从asp.net中的动态创建的控件（单选按钮列表）中检索数据 [英] Retrive data from dynamically created control (radio button list) in asp.net

问题描述

在单页面中创建100个问题的测验。成功创建单选按钮列表DYNAMICALLY。但现在问题是如何检索存储在单选按钮列表中的数据。



用于粘贴参考代码以动态创建单选按钮列表

Creating Quiz with 100 Question in single page. Successfully created radio button list DYNAMICALLY. But now problem is how to retrieve the Data stored in radio button list.

For reference code pasted to create radio button list dynamically

protected void Page_Load(object sender, EventArgs e)
   {
       //if (!Page.IsValid) return;

       int n = 100;

       // now, create n TextBoxes, adding them to the PlaceHolder TextBoxesHere
       for (int i = 0; i < n; i++)
       {
           RBLPlaceHolder.Controls.Add(new RadioButtonList());
       }

       // now, set the Text property of each TextBox
       IterateThroughChildren(this);
   }

   void IterateThroughChildren(Control parent)
   {
     foreach (Control c in parent.Controls)
     {
         if (c.GetType().ToString().Equals("System.Web.UI.WebControls.RadioButtonList") &&
             c.ID == null)
       {
         ((RadioButtonList)c).Items.Add("A");
         ((RadioButtonList)c).Items.Add("B");
         ((RadioButtonList)c).Items.Add("C");
         ((RadioButtonList)c).Items.Add("D");
         ((RadioButtonList)c).RepeatDirection = RepeatDirection.Horizontal;
         count++;
       }

       if (c.Controls.Count > 0)
       {
         IterateThroughChildren(c);
       }
     }
   }

推荐答案

使用

var myRBL = this.FindControl（RadioButtonList）为RadioButtonList;

Use
var myRBL = this.FindControl("RadioButtonList") as RadioButtonList;

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