用递归遍历容器中的控件

private void OperateControls(Control control) 
{ 
    foreach(Control c in control.Controls) 
    { 
           if(c is Panel) 
        { 
             OperateControls(c); 
        } 
        if(c is GroupBox) 
          { 
             OperateControls(c); 
       } 
       if(c is TextBox) 
         { 
          // 它是 TextBox, 要干什么随便你 
          } 
   } 
}

遍历tabcontrol控件的所有的tabpage中的所有控件

foreach (TabPage page in tabControl1.TabPages)
        {
            foreach (Control control in page.Controls)
            {
                 if (control is TextBox)
                {
                    ((TextBox)control) = "";
                }
                if (control is ComboBox)
                {
                    ((ComboBox)control).SelectedIndex = -1;
                }
             }
        }

通过控件名称获取控件

//在父控件中查找子控件名称返回结果集
objec obj = Panel1.Controls.Find("控件名称",fale).First();
//将结果集中控件提取切转换类型
Label lab = obj as Label;
string labName = lab.Name;
string labText = lab.Text;

winform 根据名字查找控件

foreach (Control control in this.Controls)
            {
                 if (control.Name == name)
                {
                    Button button = (Button)control;
                }
             }