做專案最常用功能操作的封裝類 (轉載)
一．顯示訊息對話方塊類
做專案時總免不了要彈出對話方塊，或提示使用者，或做使用者確認。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，在專案裡像WinForm的MessageBox那樣直接呼叫就可以，也可以把它編譯成dll作為元件直接呼叫，並且它也沒有彈出對話方塊時的大白屏現象：）。
///<summary>
///顯示訊息提示對話方塊。
///李天平
/// 2005.10.1
///</summary>
public class MessageBox
{
privateMessageBox()
{
}
///<summary>
///顯示訊息提示對話方塊
///</summary>
///<param name="page">當前頁面指標，一般為this</param>
///<param name="msg">提示資訊</param>
public static voidShow(System.Web.UI.Page page,string msg)
{
page.RegisterStartupScript("message","<script language='javascript' defer>alert('"+msg.ToString()+"');</script>");
}
///<summary>
///控制元件點選訊息確認提示框
///</summary>
///<param name="page">當前頁面指標，一般為this</param>
///<param name="msg">提示資訊</param>
public static voidShowConfirm(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>
///顯示訊息提示對話方塊，並進行頁面跳轉
///</summary>
///<param name="page">當前頁面指標，一般為this</param>
///<param name="msg">提示資訊</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>
///輸出自定義指令碼資訊
///</summary>
///<param name="page">當前頁面指標，一般為this</param>
///<param name="script">輸出指令碼</param>
public static void ResponseScript(System.Web.UI.Page page,string script)
{
page.RegisterStartupScript("message","<script language='javascript' defer>"+script+"</script>");
}
}
二．頁面資料驗證類
做專案，特別做MIS，更避免不了有使用者輸入資料需要做有效性驗證，這裡我總結封裝了一個頁面資料校驗的工具類，用起來也是很方便。
///<summary>
///頁面資料校驗類
///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-][email protected][//w-]+//.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或數字的字串，和 [a-zA-Z0-9] 語法一樣
private static Regex RegCHZN = new Regex("[/u4e00-/u9fa5]");
public PageValidate()
{
}
#region數字字串檢查
///<summary>
///檢查Request查詢字串的鍵值，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>
///是否數字字串
///</summary>
///<param name="inputData">輸入字串</param>
///<returns></returns>
public static bool IsNumber(string inputData)
{
Match m = RegNumber.Match(inputData);
return m.Success;
}
///<summary>
///是否數字字串可帶正負號
///</summary>
///<param name="inputData">輸入字串</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>
///檢測是否有中文字元
///</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>
///檢查字串最大長度，返回指定長度的串
///</summary>
///<param name="sqlInput">輸入字串</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)//按最大長度擷取字串
sqlInput = sqlInput.Substring(0, maxLength);
}
return sqlInput;
}
///<summary>
///字串編碼
///</summary>
///<param name="inputData"></param>
///<returns></returns>
public static string HtmlEncode(string inputData)
{
return HttpUtility.HtmlEncode(inputData);
}
///<summary>
///設定Label顯示Encode的字串
///</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
}