VS.NET中的開發技巧

ENTER键可以让光标移到下一个输入框<input onkeydown="if(event.keyCode==13)event.keyCode=9">MARKCookie中的数据以文本的形式存在客户端计算机，考虑它的安全性，最好在将数据存入Cookie之前对其进行加密。加密的方法很多，比较简单一点的有：Base64,md5,sha等，而相对比较复杂一点的有：DES,TripleDES,RC2,Rijndael等。下面是的代码实现了将数据存入Cookie之前采用散列的算法进行加密.Private void Login_Click(object sender,System EventArgs e){string Name = NameBox.Text;string Pass = PassBox.Text;Response.Cookies["name"].Value = FormsAuthentication.HashPasswordForStoringInConfigFile(Name, "md5");Response.Cookies["pass"].Value = FormsAuthentication.HashPasswordForStoringInConfigFile(Pass, "md5");}加密的方法很多，使用比较复杂的加密算法，安全性比较高些，但占用服务器资源比较大，会减慢整个网站的访问速度。所以对Cookie加密在考虑三个方面：1：安全性，2：Cookie容量，3：整个网站的性能。FUNCTION fn_Split(@sText varchar(8000), @sDelim varchar(20) = ' ')RETURNS @retArray TABLE (idx smallint Primary Key, value varchar(8000))ASBEGINDECLARE @idx smallint,@value varchar(8000),@bcontinue bit,@iStrike smallint,@iDelimlength tinyintIF @sDelim = 'Space'BEGINSET @sDelim = ' 'ENDSET @idx = 0SET @sText = LTrim(RTrim(@sText))SET @iDelimlength = DATALENGTH(@sDelim)SET @bcontinue = 1IF NOT ((@iDelimlength = 0) or (@sDelim = 'Empty'))BEGINWHILE @bcontinue = 1BEGIN--If you can find the delimiter in the text, retrieve the first element and--insert it with its index into the return table.IF CHARINDEX(@sDelim, @sText)>0BEGINSET @value = SUBSTRING(@sText,1, CHARINDEX(@sDelim,@sText)-1)BEGININSERT @retArray (idx, value)VALUES (@idx, @value)END--Trim the element and its delimiter from the front of the string.--Increment the index and loop.SET @iStrike = DATALENGTH(@value) + @iDelimlengthSET @idx = @idx + 1SET @sText = LTrim(Right(@sText,DATALENGTH(@sText) - @iStrike))ENDELSEBEGIN--If you can抰 find the delimiter in the text, @sText is the last value in--@retArray.SET @value = @sTextBEGININSERT @retArray (idx, value)VALUES (@idx, @value)END--Exit the WHILE loop.SET @bcontinue = 0ENDENDENDELSEBEGINWHILE @bcontinue=1BEGIN--If the delimiter is an empty string, check for remaining text--instead of a delimiter. Insert the first character into the--retArray table. Trim the character from the front of the string.--Increment the index and loop.IF DATALENGTH(@sText)>1BEGINSET @value = SUBSTRING(@sText,1,1)BEGININSERT @retArray (idx, value)VALUES (@idx, @value)ENDSET @idx = @idx+1SET @sText = SUBSTRING(@sText,2,DATALENGTH(@sText)-1)ENDELSEBEGIN--One character remains.--Insert the character, and exit the WHILE loop.INSERT @retArray (idx, value)VALUES (@idx, @sText)SET @bcontinue = 0ENDENDENDRETURNEND下面是调用示例：declare @no char(100)set @no='abc,cdesefd,efddc,mgns,aa'select * from fn_Split(@no,',')智能分割字符函数把逗号去掉能把些字分割为这样嫦娥一号成功发射成功分割为这样：0 嫦1 娥2 一3 号4 成5 功6 发7 射8 成9 功====================================关于WEB页的局部打印问题：----------------------------------------<script language="javascript"><!--function PrintNote(){var PrintWin=window.open('about:blank','Print');PrintWin.document.write('<object id="WebBrowser" width=0 height=0 classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"></object>' + document.all("PrintContent").innerHTML);PrintWin.document.all.WebBrowser.ExecWB(7,1);PrintWin.close();}--></script>--------------------------------------------内容用<div>装起来，并把DIV设置ID<div id="PrintContent" align="center">your GridView</div>------------------------------------<input onclick="javascript:PrintNote();" type="button" value="打印" id="Button2" onserverclick="Button2_ServerClick" runat="server"/>========================================================让GridView产生纵向横向的滚动条。这样就不会吧页面撑打了。CSS code

<style type="text/css"  id="print" media="print">
#leftSide, #footerSide {
display:none;
}
</style>
<style type="text/css" >
.Freezing
{

position:relative ;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index: 10;
}

.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}
</style>

HTML code

<div  id="Div1"  style="overflow: scroll; height: 140px;width:638px" >
Gridview 在这里
</div>