单选按钮动态创建 [英] radio button dynamic creation

问题描述

我正在asp.net网站上工作.我想创建动态表
表格的每一行将包含一个文本框和一个单选按钮.
第一行是设计部分，我已经创建了它.我也给了表格底部的一个添加按钮来添加新行.
我可以在添加按钮单击时动态添加文本框，并保持其viewstate.我想维护viewstate，因为所有行中的数据都需要保存在datatbse中.
但是我没有得到如何动态地添加单选按钮并保持其视图状态的方法.这些所有单选按钮应属于同一组单选按钮.

I m working on asp.net website. i want to create dynamic table
Each row of table will contain one text box and one radiobutton.
The first row is design part and i have created it. Also i have given one add button at bottom of table to add new row.
I m able to add textbox dynamically at add button click and maintain it''s viewstate. I want to maintain the viewstate because data in all rows i need to save in datatbse.
But i not getting how to add radiobutton dynamically add radiobutton and maintain it''s view state. These all radiobuttons should belong to same set of radiobuttons

推荐答案

试试这个将指导您.

Hi ,
Try this will Guide you .

int countTimes = 0;
  protected void Button1_Click(object sender, EventArgs e)
  {
      if (ViewState["countTimes"] == null)
      {
          countTimes = 1;
      }
      else
      {
          countTimes = Convert.ToInt32(ViewState["countTimes"]);
      }




      for (int i = 0; i < countTimes; i++)
      {
          TableRow tr = new TableRow();

          TableCell cl = new TableCell();
          TableCell cl2 = new TableCell();
          RadioButton raid = new RadioButton();
          raid.ID = "raid" + i;
          TextBox txt = new TextBox();
          txt.ID = "txt"+i;

            cl.Controls.Add(txt);
          cl2.Controls.Add(raid);

            tr.Controls.Add(cl);
            tr.Controls.Add(cl2);
            Table1.Controls.Add(tr);
      }

      countTimes = countTimes + 1;
      ViewState.Add("countTimes", countTimes);

  }

<div>
      <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />

      <asp:Table ID="Table1" runat="server">
      </asp:Table>
  </div>

最好的问候
M.Mitwalli

Best Regards
M.Mitwalli

我们可以使用Request.Form ["control_id");
获得动态控制的价值 重新创建控件对于每个回发，因此无需在此处保持视图状态

We can get value of dynamic control By Using Request.Form["control_id");
Re Create Controls For every post-back so that no need to maintain viewstate here

protected void Page_Load(object sender, EventArgs e)
  {
              RadioButtonList radBtnList = new RadioButtonList();
              radBtnList.Items.Add(new ListItem("Delete","1"));
              radBtnList.Items.Add(new ListItem("Keep", "0"));
              //radBtnList.ID
              radBtnList.AutoPostBack = true;
              radBtnList.RepeatDirection = RepeatDirection.Horizontal;
              Panel1.Controls.Add(radBtnList);
  }

}

}

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