Asp.net清空控件值的方法(可自定義控件類(lèi)型)

/// summary>重置方法控件類(lèi)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(lèi)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(lèi)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);
}
}
}