public class PageHelper { #region 控件状态设置 /// <summary> /// 锁定页面上的一些组件 /// </summary> /// <param name="page"></param> /// <param name="obj">不需锁定的控件</param> public static void LockPage(Page page, object[] obj) { Control htmlForm = null; foreach (Control ctl in page.Controls) { if (ctl is HtmlForm) { htmlForm = ctl; break; } } //foreach (Control ctl in page.Controls[1].Controls) foreach (Control ctl in htmlForm.Controls) { if (IsContains(obj, ctl) == false) { //锁定 LockControl(page, ctl); } else { //解除锁定 UnLockControl(page, ctl); } } } /// <summary> /// 解除锁定页面上的一些组件 /// </summary> /// <param name="page"></param> /// <param name="obj">继续保持锁定的控件</param> public static void UnLockPage(Page page, object[] obj) { Control htmlForm = null; foreach (Control ctl in page.Controls) { if (ctl is HtmlForm) { htmlForm = ctl; break; } } //foreach (Control ctl in page.Controls[1].Controls) foreach (Control ctl in htmlForm.Controls) { if (IsContains(obj, ctl) == false) { //解除锁定 UnLockControl(page, ctl); } else { //锁定 LockControl(page, ctl); } } } /// <summary> /// 禁用控件 /// </summary> /// <param name="page"></param> /// <param name="ctl"></param> private static void LockControl(Page page, Control ctl) { //WebControl if (ctl is Button || ctl is CheckBox || ctl is HyperLink || ctl is LinkButton || ctl is ListControl || ctl is TextBox) { ((WebControl)ctl).Enabled = false; #region 多行文本框不能禁用，应设为只读，不然滚动条不能使用 if (ctl is TextBox) { if (((TextBox)ctl).TextMode == TextBoxMode.MultiLine) { ((TextBox)ctl).Enabled = true; ((TextBox)ctl).ReadOnly = true; } } #endregion #region 时间控件禁用时不显示图片 #endregion } //HtmlControl if (ctl is HtmlInputFile) { ((HtmlInputFile)ctl).Disabled = true; } } /// <summary> /// 开放控件 /// </summary> /// <param name="page"></param> /// <param name="ctl"></param> private static void UnLockControl(Page page, Control ctl) { //WebControl if (ctl is Button || ctl is CheckBox || ctl is HyperLink || ctl is LinkButton || ctl is ListControl || ctl is TextBox) { ((WebControl)ctl).Enabled = true; //文本框去掉只读属性 if (ctl is TextBox) { ((TextBox)ctl).ReadOnly = false; } ////时间输入文本框不禁用时显示按钮 //if (ctl is WebDateTimeEdit) //{ // ((WebDateTimeEdit)ctl).SpinButtons.Display = ButtonDisplay.OnRight; //} ////时间选择文本框不禁用时显示按钮 //if (ctl is WebDateChooser) //{ // page.ClientScript.RegisterStartupScript(typeof(string), "Display" + ctl.ClientID + "Image", "<script language=javascript>" + // "document.getElementById('" + ctl.ClientID + "_img" + "').style.display='';</script>"); //} } //HtmlControl if (ctl is HtmlInputFile) { ((HtmlInputFile)ctl).Disabled = false; } } /// <summary> /// 数组中是否包含当前控件 /// </summary> /// <param name="obj"></param> /// <param name="ctl"></param> /// <returns></returns> private static bool IsContains(object[] obj, Control ctl) { foreach (Control c in obj) { if (c.ID == ctl.ID) { return true; } } return false; } #endregion #region 页面处理其它辅助方法 /// <summary> /// 得到当前页对象实例 /// </summary> /// <returns></returns> public static Page GetCurrentPage() { return (Page)HttpContext.Current.Handler; } /// <summary> /// 从System.Web.HttpRequest的Url中获取所调用的页面名称 /// </summary> /// <returns>页面名称</returns> public static string GetPageName() { int start = 0; int end = 0; string Url = HttpContext.Current.Request.RawUrl; start = Url.LastIndexOf("/") + 1; end = Url.IndexOf("?"); if (end <= 0) { return Url.Substring(start, Url.Length - start); } else { return Url.Substring(start, end - start); } } /// <summary> /// 读取QueryString值 /// </summary> /// <param name="queryStringName">QueryString名称</param> /// <returns>QueryString值</returns> public static string GetQueryString(string queryStringName) { if ((HttpContext.Current.Request.QueryString[queryStringName] != null) && (HttpContext.Current.Request.QueryString[queryStringName] != "undefined")) { return HttpContext.Current.Request.QueryString[queryStringName].Trim(); } else { return ""; } } /// <summary> /// 页面跳转 /// </summary> /// <param name="url">URL地址</param> public void Redirect(string url) { Page page = GetCurrentPage(); page.Response.Redirect(url); } /// <summary> /// 获取当前请求页面相对于根目录的层级 /// </summary> /// <returns></returns> public static string GetRelativeLevel() { string ApplicationPath = HttpContext.Current.Request.ApplicationPath; if (ApplicationPath.Trim() == "/") { ApplicationPath = ""; } int i = ApplicationPath == "" ? 1 : 2; return "";//Nandasoft.Helper.NDHelperString.Repeat("../", Nandasoft.Helper.NDHelperString.RepeatTime(HttpContext.Current.Request.Path, "/") - i); } /// <summary> /// 写javascript脚本 /// </summary> /// <param name="script">脚本内容</param> public static void WriteScript(string script) { Page page = GetCurrentPage(); // NDGridViewScriptFirst(page.Form.Controls, page); //ScriptManager.RegisterStartupScript(page, page.GetType(), System.Guid.NewGuid().ToString(), script, true); } //private void NDGridViewScriptFirst(ControlCollection ctls, Page page) //{ // foreach (Control ctl in ctls) // { // if (ctl is NDGridView) // { // NDGridView ndgv = (NDGridView)ctl; // ScriptManager.RegisterStartupScript(page, page.GetType(), ndgv.ClientScriptKey, ndgv.ClientScriptName, true); // } // else // { // NDGridViewScriptFirst(ctl.Controls, page); // } // } //} /// <summary> /// 返回客户端浏览器版本 /// 如果是IE类型，返回版本数字 /// 如果不是IE类型，返回-1 /// </summary> /// <returns>一位数字版本号</returns> public static int GetClientBrowserVersion() { string USER_AGENT = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"]; if (USER_AGENT.IndexOf("MSIE") < 0) return -1; string version = USER_AGENT.Substring(USER_AGENT.IndexOf("MSIE") + 5, 1); if (!Utility.IsInt(version)) return -1; return Convert.ToInt32(version); } #endregion }