C#.NET Js操作类代码,CSharp代码库,德仔网

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【CSharp】 C#.NET Js操作类
作者:Dezai.CN / 发布于2012/8/13/ 644
C#.NET Js操作类
<div>using System.Text;
using System.Web;
using System.Web.UI.HtmlControls;</div>
<div>namespace Pub.Class
{
 /// <summary>
 /// Js操作类
 /// </summary>
 public class Js
 {
 #region Run
 /// <summary>
 /// 运行JS代码
 /// </summary>
 /// <param name="Page">指定Page</param>
 /// <param name="strCode">要注册的代码</param>
 /// <param name="isTop">是否在头部/否则在尾部</param>
 public static void Run(System.Web.UI.Page Page, string strCode,bool isTop)
 {
 StringBuilder sb = new StringBuilder();
 sb.Append("<script language=\"javascript\">\n");
 sb.Append(strCode.Trim());
 sb.Append("\n</script>\n");
 if (isTop) Page.RegisterClientScriptBlock("RunTopJs", sb.ToString()); else Page.RegisterStartupScript("RunBottomJs", sb.ToString());
 }
 /// <summary>
 /// 运行JS代码
 /// </summary>
 /// <param name="Page">指定Page</param>
 /// <param name="strCode">要注册的代码</param>
 /// <param name="isTop">是否在头部/否则在尾部</param>
 /// <param name="IDStr">Key</param>
 public static void Run(System.Web.UI.Page Page, string strCode,bool isTop,string IDStr)
 {
 StringBuilder sb = new StringBuilder();
 sb.Append("<script language=\"javascript\">\n");
 sb.Append(strCode.Trim());
 sb.Append("\n</script>\n");
 if (isTop) Page.RegisterClientScriptBlock(IDStr, sb.ToString()); else Page.RegisterStartupScript(IDStr, sb.ToString());
 }
 /// <summary>
 /// 清空指定注册的JS代码
 /// </summary>
 /// <param name="Page">指定Page</param>
 /// <param name="isTop">是否在头部/否则在尾部</param>
 /// <param name="IDStr">Key</param>
 public static void Run(System.Web.UI.Page Page, bool isTop,string IDStr)
 {
 if (isTop) Page.RegisterClientScriptBlock(IDStr, ""); else Page.RegisterStartupScript(IDStr, "");
 }
 #endregion</div>
<div> #region Alert
 /// <summary>
 /// 提示信息
 /// </summary>
 /// <param name="msg">消息</param>
 public static void Alert(string msg)
 {
 StringBuilder sb = new StringBuilder();
 sb.Append("<script language=\"javascript\"> \n");
 sb.Append("alert(\"" + msg.Trim() + "\"); \n");
 sb.Append("</script>\n");
 HttpContext.Current.Response.Write(sb.ToString());
 }
 /// <summary>
 /// 提示信息
 /// </summary>
 /// <param name="Page">指定页</param>
 /// <param name="msg">消息</param>
 public static void Alert(System.Web.UI.Page Page, string msg)
 {
 StringBuilder sb = new StringBuilder();
 sb.Append("<script language=\"javascript\"> \n");
 sb.Append("alert(\"" + msg.Trim() + "\"); \n");
 sb.Append("</script>\n");
 Page.RegisterClientScriptBlock("AlertJs", sb.ToString());
 }
 /// <summary>
 /// 提示信息
 /// </summary>
 /// <param name="Page">指定页</param>
 /// <param name="msg">消息</param>
 /// <param name="isTop">是否在头部/否则在尾部</param>
 public static void Alert(System.Web.UI.Page Page, string msg, bool isTop)
 {
 StringBuilder sb = new StringBuilder();
 sb.Append("<script language=\"javascript\"> \n");
 sb.Append("alert(\"" + msg.Trim() + "\"); \n");
 sb.Append("</script>\n");
 if (isTop) Page.RegisterClientScriptBlock("AlertTopJs", sb.ToString()); else Page.RegisterStartupScript("AlertBottomJs", sb.ToString());
 }
 #endregion</div>
<div> #region Import/loadCss/AddAttr/chkFormData
 /// <summary>
 /// 注册一个处部JS文件/或CSS文件
 /// </summary>
 /// <param name="Page">指定页</param>
 /// <param name="filePath">文件</param>
 /// <param name="isTop">是否在头部/否则在尾部</param>
 public static void Import(System.Web.UI.Page Page, string filePath, bool isTop)
 {
 StringBuilder sb = new StringBuilder();
 if (filePath.ToLower().Substring(filePath.Length-3,3) == ".js") {
 sb.Append("<script language=\"JavaScript\" src=\"" + filePath + "\" type=\"text/javascript\"></script>\n");
 if (isTop) Page.RegisterClientScriptBlock("TopJs", sb.ToString()); else Page.RegisterStartupScript("BottomJs", sb.ToString());
 }
 if (filePath.ToLower().Substring(filePath.Length - 4,4) == ".css") {
 LoadCss(Page, filePath);
 }
 }
 /// <summary>
 /// 注册一个处部CSS文件
 /// </summary>
 /// <param name="page">Page</param>
 /// <param name="cssFile">CSS文件</param>
 public static void JsLoadCss(System.Web.UI.Page page,string cssFile)
 {
 Run(page, "setStyle(\"" + cssFile + "\");\n", true);
 }
 /// <summary>
 /// 注册一个处部CSS文件
 /// </summary>
 /// <param name="placeHolder">PlaceHolder组件</param>
 /// <param name="cssFile">CSS文件</param>
 public static void LoadCss(System.Web.UI.WebControls.PlaceHolder placeHolder, string cssFile)
 {
 HtmlGenericControl objLink = new HtmlGenericControl("LINK");
 objLink.Attributes["rel"] = "stylesheet";
 objLink.Attributes["type"] = "text/css";
 objLink.Attributes["href"] = cssFile;
 placeHolder.Controls.Add(objLink);
 //<asp:placeholder id="MyCSS" runat="server"></asp:placeholder> 
 }
 /// <summary>
 /// 注册一个处部CSS文件
 /// </summary>
 /// <param name="page">Page</param>
 /// <param name="cssFile">CSS文件</param>
 public static void LoadCss(System.Web.UI.Page page,string cssFile)
 {
 HtmlLink myHtmlLink = new HtmlLink(); 
 myHtmlLink.Href = cssFile; 
 Js.AddAttr(myHtmlLink,"rel", "stylesheet"); 
 Js.AddAttr(myHtmlLink,"type", "text/css");
 page.Header.Controls.Add(myHtmlLink);
 }
 /// <summary>
 /// 添加属性
 /// </summary>
 /// <param name="Control">WebControl</param>
 /// <param name="eventStr">名称</param>
 /// <param name="MsgStr">内容</param>
 public static void AddAttr(System.Web.UI.WebControls.WebControl Control, string eventStr, string MsgStr)
 {
 Control.Attributes.Add(eventStr, MsgStr);
 }
 /// <summary>
 /// 添加属性
 /// </summary>
 /// <param name="Control">HtmlGenericControl</param>
 /// <param name="eventStr">名称</param>
 /// <param name="MsgStr">内容</param>
 public static void AddAttr(System.Web.UI.HtmlControls.HtmlGenericControl Control, string eventStr, string MsgStr)
 {
 Control.Attributes.Add(eventStr, MsgStr);
 }
 /// <summary>
 /// 添加属性
 /// </summary>
 /// <param name="Control">HtmlGenericControl</param>
 /// <param name="eventStr">名称</param>
 /// <param name="MsgStr">内容</param>
 public static void AddAttr(System.Web.UI.HtmlControls.HtmlControl Control, string eventStr, string MsgStr)
 {
 Control.Attributes.Add(eventStr, MsgStr);
 }
 /// <summary>
 /// 验证数据完整性
 /// </summary>
 /// <param name="page">Page</param>
 /// <param name="dataValue">内容</param>
 /// <param name="divObjStr">div对像 如果为空时以alert方法显示</param>
 /// <param name="minLength">最小长度</param>
 /// <param name="maxLength">最大长度</param>
 /// <param name="titleStr">标题</param>
 /// <param name="isNVarchar">是否Nvarchar类型</param>
 /// <returns>真/假</returns>
 /// <example>
 /// 
 /// private bool doSave()
 /// { 
 /// if (!Cmn.Js.ChkFormData(this, "", "", 1, 20, "姓名", false)) return false;
 /// if (!Cmn.Js.ChkFormData(this, "熊", "", 4, 20, "姓名", false)) return false;
 /// if (!Cmn.Js.ChkFormData(this, "熊华春123456789123451", "", 4, 20, "姓名", false)) return false;
 /// return true;
 /// }
 /// if (doSave()) Cmn.Js.Alert(this,"成功");
 /// 
 /// </example>
 public static bool ChkFormData(System.Web.UI.Page page, string dataValue, string divObjStr, int minLength, int maxLength, string titleStr, bool isNVarchar)
 {
 int txtObjLength = (isNVarchar) ? dataValue.Length : dataValue.CnLength();
 StringBuilder sb = new StringBuilder();
 bool _result = true;
 if (txtObjLength==0 && minLength!=0) {
 if (divObjStr!="") {
 sb.Append("document.getElementById(\"" + divObjStr + "\").innerHTML = \"<div class="ErrorMsg">" + titleStr + "不能为空！</div>\";");
 } else {
 sb.Append("alert('" + titleStr + "不能为空！');"); 
 }
 _result = false;
 } else if (txtObjLength<minLength){
 if (divObjStr!="") {
 sb.Append("document.getElementById(\"" + divObjStr + "\").innerHTML = \"<div class="ErrorMsg">" + titleStr + "不能小于" + minLength + "个字符！</div>\";");
 } else {
 sb.Append("alert('" + titleStr + "不能小于" + minLength + "个字符！');"); 
 }
 _result = false;
 } else if (txtObjLength>maxLength){
 if (divObjStr!="") {
 sb.Append("document.getElementById(\"" + divObjStr + "\").innerHTML = \"<div class="ErrorMsg">" + titleStr + "不能大于" + maxLength + "个字符！</div>\";");
 } else {
 sb.Append("alert('" + titleStr + "不能大于" + maxLength + "个字符！');"); 
 }
 _result = false;
 } else {
 if (divObjStr != "") { sb.Append("document.getElementById(\"" + divObjStr + "\").innerHTML = \"\");"); }
 _result = true;
 }
 Js.Run(page, sb.ToString(), false, titleStr);
 return _result ;
 }
 #endregion
 }
}
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