ASP.NET遍历控件的几种方法

方法一:javascript法 function btnClear() { for(i=0;i /// 清空指定页面上所有的控件内容，包括TextBox，CheckBox,CheckBoxList,RadioButton,RadioButtonList。但是不清 /// 除如ListBox，DropDownList，因为这样的控件值对当前页面来说还可以用，一般这些控件里都是保存的字典数据。 /// Author：Kevin /// 日期：2004-12-02 /// ///
指定的页面 public static void ClearAllContent(System.Web.UI.Control page) { int nPageControls = page.Controls.Count; for (int i = 0; i < nPageControls; i++) { foreach (System.Web.UI.Control control in page.Controls[i].Controls) { if (control.HasControls()) { ClearAllText(control); } else { if (control is TextBox) (control as TextBox).Text = ""; if (control is CheckBox) (control as CheckBox).Checked = false; if (control is RadioButtonList) (control as RadioButtonList).SelectedIndex = -1; if (control is RadioButton) (control as RadioButton).Checked = false; if (control is CheckBoxList) { foreach (ListItem item in (control as CheckBoxList).Items) { item.Selected = false; } } }//if..else }//foreach }//for } #endregion 方法四: 建立一个类，用于存放那些TextBox的name和value ，代码如下： Public Class UtilityObj Private _name As String Private _value As String Public Sub New(ByVal Name As String, ByVal Value As String) _name = Name _value = Value End Sub Public Property Name() As String Get Return _name End Get Set(ByVal Value As String) _name = Name End Set End Property Public Property Value() As String Get Return (_value) End Get Set(ByVal Value As String) _value = Value End Set End Property End Class 这个类包含两个属性："name" 和 "value"，再定义一个公有的Arraylist(oArraylist),用于存储数据。如图： 要实现遍历ASP.NET页面所有的控件，我们还需要定义一个主要的方法。这个方法接收一个Control类型的参数，如果这个参数为textbox，则存储它的 name 和 value。代码如下： Public Sub LoopingControls(ByVal oControl As Control) Dim frmCtrl As Control oArrayList = New ArrayList For Each frmCtrl In oControl.Controls If TypeOf frmCtrl Is TextBox Then oArrayList.Add(New UtilityObj(frmCtrl.I