一． 顯示消息對話框類
做項目時總免不了要彈出對話框，或提示用戶，或做用戶確認。像WinForm下的MessageBox一樣很方便，但web下是不是也可以實現呢，答案是肯定的，我簡單總結了一下並封裝到類，在項目裏像WinForm的MessageBox那樣直接調用就可以，也可以把它編譯成dll作爲組件直接調用，並且它也沒有彈出對話框時的大白屏現象：）。
/// <summary>
/// 顯示消息提示對話框。
/// 李天平
/// 2005.10.1
/// </summary>
public class MessageBox
{
private MessageBox()
{
}
/// <summary>
/// 顯示消息提示對話框
/// </summary>
/// <param name="page">當前頁面指針，一般爲this</param>
/// <param name="msg">提示信息</param>
public static void Show(System.Web.UI.Page page,string msg)
{
page.RegisterStartupScript("message","<script language='javascript' defer>alert('"+msg.ToString()+"');</script>");
}
/// <summary>
/// 控件點擊消息確認提示框
/// </summary>
/// <param name="page">當前頁面指針，一般爲this</param>
/// <param name="msg">提示信息</param>
public static void ShowConfirm(System.Web.UI.WebControls.WebControl Control,string msg)
{
//Control.Attributes.Add("onClick","if (!window.confirm('"+msg+"')){return false;}");
Control.Attributes.Add("onclick", "return confirm('" + msg + "');") ;
}
/// <summary>
/// 顯示消息提示對話框，並進行頁面跳轉
/// </summary>
/// <param name="page">當前頁面指針，一般爲this</param>
/// <param name="msg">提示信息</param>
/// <param name="url">跳轉的目標URL</param>
public static void ShowAndRedirect(System.Web.UI.Page page,string msg,string url)
{
StringBuilder Builder=new StringBuilder();
Builder.Append("<script language='javascript' defer>");
Builder.AppendFormat("alert('{0}');",msg);
Builder.AppendFormat("top.location.href='{0}'",url);
Builder.Append("</script>");
page.RegisterStartupScript("message",Builder.ToString());
}
/// <summary>
/// 輸出自定義腳本信息
/// </summary>
/// <param name="page">當前頁面指針，一般爲this</param>
/// <param name="script">輸出腳本</param>
public static void ResponseScript(System.Web.UI.Page page,string script)
{
page.RegisterStartupScript("message","<script language='javascript' defer>"+script+"</script>");
}
}
二．頁面數據驗證類
做項目，特別做MIS，更避免不了有用戶輸入數據需要做有效性驗證，這裏我總結封裝了一個頁面數據校驗的工具類，用起來也是很方便。
/// <summary>
/// 頁面數據校驗類
/// 李天平
/// 2004.8
/// </summary>
public class PageValidate
{
private static Regex RegNumber = new Regex("^[0-9]+$");
private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等價於^[+-]?/d+[.]?/d+$
private static Regex RegEmail = new Regex("^[//w-]+@[//w-]+//.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或數字的字符串，和 [a-zA-Z0-9] 語法一樣
private static Regex RegCHZN = new Regex("[/u4e00-/u9fa5]");
public PageValidate()
{
}
#region 數字字符串檢查
/// <summary>
/// 檢查Request查詢字符串的鍵值，是否是數字，最大長度限制
/// </summary>
/// <param name="req">Request</param>
/// <param name="inputKey">Request的鍵值</param>
/// <param name="maxLen">最大長度</param>
/// <returns>返回Request查詢字符串</returns>
public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen)
{
string retVal = string.Empty;
if(inputKey != null && inputKey != string.Empty)
{
retVal = req.QueryString[inputKey];
if(null == retVal)
retVal = req.Form[inputKey];
if(null != retVal)
{
retVal = SqlText(retVal, maxLen);
if(!IsNumber(retVal))
retVal = string.Empty;
}
}
if(retVal == null)
retVal = string.Empty;
return retVal;
}
/// <summary>
/// 是否數字字符串
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsNumber(string inputData)
{
Match m = RegNumber.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否數字字符串可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsNumberSign(string inputData)
{
Match m = RegNumberSign.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否是浮點數
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsDecimal(string inputData)
{
Match m = RegDecimal.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否是浮點數可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsDecimalSign(string inputData)
{
Match m = RegDecimalSign.Match(inputData);
return m.Success;
}
#endregion
#region 中文檢測
/// <summary>
/// 檢測是否有中文字符
/// </summary>
/// <param name="inputData"></param>
/// <returns></returns>
public static bool IsHasCHZN(string inputData)
{
Match m = RegCHZN.Match(inputData);
return m.Success;
}
#endregion
#region 郵件地址
/// <summary>
/// 是否是浮點數可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsEmail(string inputData)
{
Match m = RegEmail.Match(inputData);
return m.Success;
}
#endregion
#region 其他
/// <summary>
/// 檢查字符串最大長度，返回指定長度的串
/// </summary>
/// <param name="sqlInput">輸入字符串</param>
/// <param name="maxLength">最大長度</param>
/// <returns></returns>
public static string SqlText(string sqlInput, int maxLength)
{
if(sqlInput != null && sqlInput != string.Empty)
{
sqlInput = sqlInput.Trim();
if(sqlInput.Length > maxLength)//按最大長度截取字符串
sqlInput = sqlInput.Substring(0, maxLength);
}
return sqlInput;
}
/// <summary>
/// 字符串編碼
/// </summary>
/// <param name="inputData"></param>
/// <returns></returns>
public static string HtmlEncode(string inputData)
{
return HttpUtility.HtmlEncode(inputData);
}
/// <summary>
/// 設置Label顯示Encode的字符串
/// </summary>
/// <param name="lbl"></param>
/// <param name="txtInput"></param>
public static void SetLabel(Label lbl, string txtInput)
{
lbl.Text = HtmlEncode(txtInput);
}
public static void SetLabel(Label lbl, object inputObj)
{
SetLabel(lbl, inputObj.ToString());
}
#endregion
}
本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/litp/archive/2005/11/11/527854.aspx
