前台: |
<div> |
<asp:TextBox ID= "txtCode" runat= "server" Width= "76px" class = "kjia_3" Height= "22px" ></asp:TextBox> |
<img id= "imgVerify" style= "width:100px; height:35px;" src= "VerifyCode.aspx?'+Math.random()+'" alt= "看不清?点击更换" onclick= "this.src=this.src+'?'" /> |
<asp:Button ID= "Button1" runat= "server" Text= "确定" |
onclick= "Button1_Click1" /> |
</div> |
后台:按钮事件 |
protected void Button1_Click1( object sender, EventArgs e) |
{ |
string code = "" ; |
code = txtCode.Text.Trim(); |
if (String.Compare(Request.Cookies[ "CheckCode" ].Value, code.ToString().Trim(), true ) != 0) |
{ |
Response.Write( "<script>alert('验证码不正确');</script>" ); |
return ; |
} |
else |
{ |
Response.Write( "<script>alert('正确');</script>" ); |
return ; |
} |
} |