using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.HtmlControls; 
using System.Web.UI.WebControls; 
namespace DotNet.Common.Util 
{ 
/// <summary> 
/// 控件枚舉,我們在禁用或啟用時，就是根據這個枚舉來匹配合適的項 
/// </summary> 
public enum ControlNameEnum 
{ 
Panel = 0, //容器 這個比較常用 
TextBox = 1, 
Button = 2, //這個也比較常用 比如 按鈕提交后的禁用,返回結果后啟用 
CheckBox = 3, 
ListControl = 4, 
All = 100 //所有 
} 
public static class ControlHelper 
{ 
#region 同時禁用或者啟用頁面的某些控件 
/// <summary> 
/// 設置是否啟用控件 
/// </summary> 
/// <param name="control"></param> 
/// <param name="controlName"></param> 
/// <param name="isEnable"></param> 
public static void SetControlsEnabled(Control control, ControlNameEnum controlName, bool isEnabled) 
{ 
foreach (Control item in control.Controls) 
{ 
/* 我們僅僅考慮幾種常用的asp.net服務器控件和html控件 */ 
//Panel 
if (item is Panel && (controlName == ControlNameEnum.Panel || controlName == ControlNameEnum.All)) 
{ 
((Panel)item).Enabled = isEnabled; 
} 
//TextBox,HtmlTextBox 
if (controlName == ControlNameEnum.TextBox || controlName == ControlNameEnum.All) 
{ 
if (item is TextBox) 
{ 
((TextBox)(item)).Enabled = isEnabled; 
} 
else if (item is HtmlInputText) 
{ 
((HtmlInputText)item).Disabled = isEnabled; 
} 
else if (item is HtmlTextArea) 
{ 
((HtmlTextArea)(item)).Disabled = isEnabled; 
} 
} 
//Buttons 
if (item is Button && (controlName == ControlNameEnum.Button || controlName == ControlNameEnum.All)) 
{ 
if (item is Button) 
{ 
((Button)(item)).Enabled = isEnabled; 
} 
else if (item is HtmlInputButton) 
{ 
((HtmlInputButton)(item)).Disabled = !isEnabled; 
} 
else if (item is ImageButton) 
{ 
((ImageButton)(item)).Enabled = isEnabled; 
} 
else if (item is LinkButton) 
{ 
((LinkButton)(item)).Enabled = isEnabled; 
} 
} 
//CheckBox 
if (controlName == ControlNameEnum.CheckBox || controlName == ControlNameEnum.All) 
{ 
if (item is CheckBox) 
{ 
((CheckBox)(item)).Enabled = isEnabled; 
} 
else if (item is HtmlInputCheckBox) 
{ 
((HtmlInputCheckBox)(item)).Disabled = !isEnabled; 
} 
} 
//List Controls 
if (controlName == ControlNameEnum.ListControl || controlName == ControlNameEnum.All) 
{ 
if (item is DropDownList) 
{ 
((DropDownList)(item)).Enabled = isEnabled; 
} 
else if (item is RadioButtonList) 
{ 
((RadioButtonList)(item)).Enabled = isEnabled; 
} 
else if (item is CheckBoxList) 
{ 
((CheckBoxList)(item)).Enabled = isEnabled; 
} 
else if (item is ListBox) 
{ 
((ListBox)(item)).Enabled = isEnabled; 
} 
else if (item is HtmlSelect) 
{ 
((HtmlSelect)(item)).Disabled = !isEnabled; 
} 
} 
//如果項目還有子控件，遞歸調用該函數 
if (item.Controls.Count > 0) 
{ 
SetControlsEnabled(item, controlName, isEnabled); 
} 
} 
} 
#endregion 
} 
} 

protected void Page_Load(object sender, EventArgs e) 
{ 
if (!IsPostBack) 
{ 
ControlHelper.SetControlsEnabled(this.Page, ControlNameEnum.Panel, false); //Panel禁用 
} 
}