Web页面上的控件

it2026-10-03  2

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"; } } }

 

 

 

 

 

转载于:https://www.cnblogs.com/wupeiqi/p/3146396.html

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