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第一步:在asp.net页面写javascript方法 放在<body><form>之间
 <script language="javascript" type="text/javascript"> function validate()  ...{ if (document.getElementById("txtName").value=="")  ...{ alert(" Name Not Found "); document.getElementById("txtname").focus(); return false; } if (document.getElementById("txtemail").value=="") ...{ alert("Email Cant Not Find"); document.getElementById("txtEmail").focus(); return false; } var emailPat="^[a-zA-Z0-9_.]+@[a-zA-Z0-9-]+[.a-zA-Z]+$"; var emailID=document.getElementById("txtEmail").value; var matchArray=emailID.match(emailPat); if (matchArray==null) ...{ alert(‘Your email address seems incorrect. Please try again.‘); document.getElementById("txtEmail").focus(); return false; } var digits="0123456789"; var temp; for(i=0;document.getElementById("txtZip").value.length;i++) ...{ temp=document.getElementById("txtZip").value.substring(i,i+1); if (digits.indexOf(temp)==-1) ...{ alert("please enter current zip code"); document.getElementById("txtZip").focus(); return false; } } return true; } </script>
第二步 就是 .cs中的 Page_load 事件 添加如下代码:
protected void Page_Load(object sender, EventArgs e) ...{ btnSubmit.Attributes.Add("onclick", "return validate()"); } |
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