Web页面上的控件

Web页面,即:.aspx文件
页面的根目录下,分为了5部分
  [0]-{System.Web.UI.LiteralControl}
  [1]-{System.Web.UI.HtmlControls.HtmlHead}
  [2]-{System.Web.UI.LiteralControl}
  [3]-{System.Web.UI.HtmlControls.HtmlForm}
  [4]-{System.Web.UI.LiteralControl}

内容依次为:
[0]-{System.Web.UI.LiteralControl}
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" >

[1]-{System.Web.UI.HtmlControls.HtmlHead}
  <head>
    ......
  </head>

[2]-{System.Web.UI.LiteralControl}
  <body>

[3]-{System.Web.UI.HtmlControls.HtmlForm}
  <form>
    ......
  </form>

[4]-{System.Web.UI.LiteralControl}
  </body>
  </html>


所以,在遍历所有页面上的控件的时候,就在this.Controls[3]中找.

 

问题:遍历Web页面上所有的TextBox,并全部设置为1111

    protected void btn_Click(object sender, EventArgs e)

    {

       

        foreach ( System.Web.UI.Control contrl in this.Controls[3].Controls)

        {

            if (contrl is System.Web.UI.WebControls.TextBox)

            {

                System.Web.UI.WebControls.TextBox txt = (System.Web.UI.WebControls.TextBox)contrl;

                txt.Text = "l";

            }

        }

    }

那么遍历WinForm中的控件呢?

  private void button1_Click(object sender, EventArgs e)

        {

            foreach ( System.Windows.Forms.Control control in this.Controls)

            {

                if (control is System.Windows.Forms.TextBox)

                {

                    System.Windows.Forms.TextBox txt = (System.Windows.Forms.TextBox)control;

                    txt.Text = "bbbb";

                }

            }

        }

 

 

 

 

 

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