Saturday, December 17, 2011

How to validate a number between 0-24 with Java Scripts 

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <script language="javascript" type="text/javascript">
        function checkIt(obj, evt) {
            evt = (evt) ? evt : window.event
            var charCode = (evt.which) ? evt.which : evt.keyCode
            if ((charCode < 45 || charCode > 57) && charCode != 8 && charCode != 37 && charCode != 39) {
                alert("This field accepts numbers only")
                return false
            }
            var t = (charCode / 1) - 48;
            var v = obj.value + t;
            var value = v / 1;
            if(value > 24){ 
                alert("Number should be less than 24");
                return false;
            }
            return true
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox runat="server" ID="txtNumber" onKeyPress='javascript:return checkIt(this, event)' />
    </div>
    </form>
</body>
</html>
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Wednesday, December 14, 2011

How to retain the password in a postback 

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Test Page</title>
    <script runat="server">
        public string Password
        {
            get { return ViewState["Password"] as string; }
            set { this.ViewState["Password"] = value; }
        }
        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            if (this.IsPostBack)
            {
                if (!string.IsNullOrEmpty(this.txtPassword.Text))
                    this.Password = this.txtPassword.Text;
                this.txtPassword.Attributes.Add("value", this.Password ?? string.Empty);
            }
        }
    </script>
</head>
<body>
    <form  id="aspNetForm" runat="server">
        UserName: <asp:TextBox runat="server" ID="txtName" />
        Password: <asp:TextBox runat="server" ID="txtPassword" TextMode="Password" />
        <hr />
        <asp:Button runat="server" ID="btnSave" Text="Save" />
    </form>
</body>
</html>
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Tuesday, December 13, 2011

Html Header Tag Sizes

  • H1 - 24pt / 32px
  • H2 - 18pt / 24px
  • H3 - 14pt / 18px
  • H4 - 12pt / 15px
  • H5 - 10pt / 13px
  • H6 - 8pt   / 11px
Above are the default font sizes in points and their approximate sizes in pixels
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