当页面内有许多控件,我们在需要清空其值的时候,一个个清空未免太麻烦。于是写了这么一个方法,可以自定义清空控件的类型,灵活应对业务需求。
复制代码 代码如下:
///
///
public enum ReSetType
{
///
/// TextBox
///
TXT,
///
/// DropDownList
///
DDL,
///
/// RadioButtonList
///
RBL,
///
/// 全部ReSetType类型
///
ALL
}
///
///
/// this
/// ReSetType.ALL为清空ReSetType枚举中包含的所有控件类型
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
//单选按钮列表
if (c is RadioButtonList && blRbl == true)
{
((RadioButtonList)c).SelectedIndex = -1;
}
else
if (c.HasControls())
{
//递归
ReSet(c, rst);
}
}
}



