转载: 打造自己的asp.net验证控件

<% @ Page Language="C#" AutoEventWireup="true" CodeBehind="myvalid.aspx.cs" Inherits="Test.myvalid"  %>
 
< html  xmlns ="http://www.w3.org/1999/xhtml"   >
< head  runat ="server" >
     < title > 无标题页 </ title >

< style >

.MsgC
{
    border-top:solid 1px #C6C3C6;
    height:6px;
    background-color:#FFFBEF;
    font-size:1px;
}
.MsgL
{
    
  
    BACKGROUND: url(images/vMsgL.gif)  no-repeat left top;
    width:7px;
    height:6px;
    
}
.MsgR
{
 
    BACKGROUND: url(images/vMsgR.gif)  no-repeat  ;
   
    width:24px;
    height:6px;
}
.MsgBL
{
    
  
     
    BACKGROUND: url(images/vMsgBL.gif)  no-repeat left top;
     width:7px;
    height:6px;
  
  
  
    
}
.MsgBC
{
     
     
    BACKGROUND: url(images/vMsgBC.gif)  repeat-x;
    height:19px;
    
}
.MsgBR
{
    
 
     
    BACKGROUND: url(images/vMsgBR.gif)  no-repeat left top;
    width:24px;
    height:19px;
    
}

</ style >
</ head >
< body  style ="font-size:12px" >
     < form  id ="form1"  runat ="server" >
        < div  style ="font-weight:bold;height:60px" >  打造自己的验证控件： </ div >
       
        姓名： < asp:TextBox  ID ="TextBox1"  runat ="server" ></ asp:TextBox >
         < asp:RequiredFieldValidator  ID ="RequiredFieldValidator1"  runat ="server"  Display ="dynamic"  ControlToValidate ="TextBox1"
            ErrorMessage ="请输入姓名！"  SetFocusOnError ="True" ></ asp:RequiredFieldValidator >< br  />
        证件号： < asp:TextBox  ID ="TextBox2"  runat ="server" ></ asp:TextBox >
         < asp:RequiredFieldValidator  ID ="RequiredFieldValidator2"  runat ="server"  Display ="dynamic"  ControlToValidate ="TextBox2"
            ErrorMessage ="请输入证件号!"  SetFocusOnError ="True" ></ asp:RequiredFieldValidator >
         < asp:RegularExpressionValidator  ID ="RegularExpressionValidator1"  runat ="server"   Display ="dynamic"  ControlToValidate ="TextBox2"
            ErrorMessage ="证件号格式不符！"  ValidationExpression ="d{17}[d|X]|d{15}" ></ asp:RegularExpressionValidator >< br  />
         < asp:Button  ID ="Button1"  runat ="server"  Text ="确定"   />
        
    
     </ form >
</ body >
</ html >

< script  type ="text/javascript" >

 function ValidatorUpdateDisplay(val) {
    if (typeof(val.display) == "string") {
        if (val.display == "None") {
            return;
        }
        if (val.display == "Dynamic") {
            //val.style.display = val.isvalid ? "none" : "inline";
           // return;
        }
    }
    if ((navigator.userAgent.indexOf("Mac") > -1) &&
        (navigator.userAgent.indexOf("MSIE") > -1)) {
        val.style.display = "inline";
    }
    ShowZfValidMsg(val);
   // val.style.visibility = val.isvalid ? "hidden" : "visible";
}

function Page_ClientValidate(validationGroup) {
    Page_InvalidControlToBeFocused = null;
    if (typeof(Page_Validators) == "undefined") {
        return true;
    }
    var i;
    for (i = 0; i < Page_Validators.length; i++) {
        
        ValidatorValidate(Page_Validators[i], validationGroup, null);
        //Added By zhaofeng
        if(!Page_Validators[i].isvalid)// only show one  errmsg
        {
            Page_IsValid = false;
            Page_BlockSubmit = !Page_IsValid;
            return false;
        }
        //Added End
    }
    
    ValidatorUpdateIsValid();
 
    ValidationSummaryOnSubmit(validationGroup);
    Page_BlockSubmit = !Page_IsValid;
    return Page_IsValid;
}

function ShowZfValidMsg(val)
{   
    //window.status = val.isvalid;
    var tbId  = "tbValidMsg";//+val.controltovalidate;
    var tb = document.getElementById(tbId);
    if(val.isvalid && tb == null) return;
    
    if(tb == null)
    {
        tb = document.createElement("table");
        tb.border= 0 ;
        tb.id = tbId;
        tb.cellSpacing = 0 ;
        tb.cellPadding = 0 ;
        var tr = tb.insertRow(0);
        var cell = tr.insertCell(0);
        cell.className = "MsgL";
        
        cell =  tr.insertCell(1);
        cell.className  = "MsgC";
        cell.innerHTML = "&nbsp;";
       
        cell =  tr.insertCell(2);
        
        cell.className  = "MsgR";
        //the second row
        tr = tb.insertRow(1);
        cell = tr.insertCell(0);
        cell.bgColor = "#FFFBEF";
        cell.style.cssText=  "border-left:solid 1px #C6C3C6";
        cell.innerHTML = "&nbsp;"
        cell = tr.insertCell(1);
        cell.bgColor = "#FFFBEF";
        cell.height  = 40;
        cell.innerHTML = "<div style='float:left;padding-top:1px'><img src='images/yellowalert.gif' /></div>"+
        "<span style='color:black;font-size:12px;height:40px;width:100px;padding-top:10px;padding-bottom:10px;padding-right:0px;padding-left:3px'></span>";
        
        cell = tr.insertCell(2);
        cell.bgColor = "#FFFBEF";
        cell.style.cssText=  "border-right:solid 1px #C6C3C6";
        cell.innerHTML = "&nbsp;"
        //the third row
        tr = tb.insertRow(2);
        cell = tr.insertCell(0);
        cell.className = "MsgBL";
        cell =  tr.insertCell(1);
        cell.innerHTML = "&nbsp;";
        cell.className  = "MsgBC";
        cell =  tr.insertCell(2);
        
        cell.className  = "MsgBR";
        document.body.appendChild(tb);
        tb.style.cssText= "position:absolute;zIndex:500";
    }
    tb.rows[1].cells[1].childNodes[1].innerHTML = val.innerHTML;
    tb.style.display = val.isvalid?"none":"";
    var obj = document.getElementById(val.controltovalidate);
    if(obj !=null)
    {
        var ary = GetElePos(obj);
        var l = ary[0]+obj.offsetWidth-tb.offsetWidth;
        if(l<0) l= 0 ;
        var t = ary[1]-tb.offsetHeight+15;
        if(t<0) t = 0 ;
        tb.style.left = l 
        tb.style.top = t;
    }
    return ;
    
}
  function GetElePos(e)
    {
        var t=e.offsetTop; 
         var l=e.offsetLeft; 
         while(e=e.offsetParent){ 
         t+=e.offsetTop; 
         l+=e.offsetLeft; 
         } 
         return [l, t];
    }
</ script >

本文转自灵动生活博客园博客，原文链接：http://www.cnblogs.com/ywqu/archive/2008/04/03/1136227.html ，如需转载请自行联系原作者