Asp.net清空控件值的方法(可自定義控件類型)

當頁面內有許多控件，我們在需要清空其值的時候，一個個清空未免太麻煩。于是寫了這么一個方法，可以自定義清空控件的類型，靈活應對業務需求。
代碼如下:

/// <summary>重置方法控件類型枚舉</summary> 
/// <remarks>求知域http://www.qqextra.com 2012-12-28</remarks> 
public enum ReSetType 
{ 
/// <summary> 
/// TextBox 
/// </summary> 
TXT, 
/// <summary> 
/// DropDownList 
/// </summary> 
DDL, 
/// <summary> 
/// RadioButtonList 
/// </summary> 
RBL, 
/// <summary> 
/// 全部ReSetType類型 
/// </summary> 
ALL 
} 
/// <summary>重置控件的值</summary> 
/// <remarks>求知域http://www.qqextra.com 2012-12-28</remarks> 
/// <param name="control">this</param> 
/// <param name="rst">ReSetType.ALL為清空ReSetType枚舉中包含的所有控件類型</param> 
public static void ReSet(Control control, params ReSetType[] rst) 
{ 
bool blTxt = false; 
bool blDdl = false; 
bool blRbl = false; 
foreach (ReSetType type in rst) 
{ 
if (type == ReSetType.ALL) 
{ 
blTxt = true; 
blDdl = true; 
blRbl = true; 
break; 
} 
else 
if (type == ReSetType.TXT) 
blTxt = true; 
else if (type == ReSetType.DDL) 
blDdl = true; 
else if (type == ReSetType.RBL) 
blRbl = true; 
} 
foreach (Control c in control.Controls) 
{ 
//文本框 
if (c is TextBox && blTxt == true) 
{ 
((TextBox)c).Text = ""; 
} 
else 
//下拉列表 
if (c is DropDownList && blDdl == true) 
{ 
DropDownList ddl = (DropDownList)c; 
if (ddl.Items.Count > 0) 
{ 
ddl.SelectedIndex = 0; 
} 
} 
else 
//單選按鈕列表 
if (c is RadioButtonList && blRbl == true) 
{ 
((RadioButtonList)c).SelectedIndex = -1; 
} 
else 
if (c.HasControls()) 
{ 
//遞歸 
ReSet(c, rst); 
} 
} 
} 

 
 




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