Asp.net清空控件值的方法(可自定义控件类型)


            由于项目收尾，最近忙着做一些方法的优化，整理了一些分享给大家。 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: /// <summary>重置方法控件类型枚举</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类型 /// </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为清空ReSetType枚举中包含的所有控件类型</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 //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); } } }