clear all cotrol values of a page

<script type="text/javascript">
    function allclear()
    {    //debugger
        var elements=document.getElementsByTagName("INPUT");
        for(i=0;i<elements.length;i++)
            if(elements[i].type=="radio")
                elements[i].checked=false;
        for(i=0;i<elements.length;i++)
            if(elements[i].type=="checkbox")
                elements[i].checked=false;
        for(i=0;i<elements.length;i++)
           if (elements[i].type=="text")
                elements[i].value="";
        var elements1=document.getElementsByTagName("SELECT");
        for(i=0;i<elements1.length;i++)
            if(elements1[i].id!="" && elements1[i].id!=null)
                elements1[i].selectedIndex=0;
     }
</script>
---------------------------------------------------------------------------------------
private void ClearControls(Control c)
    {
        if (c.GetType() == typeof(System.Web.UI.WebControls.TextBox))
            ((TextBox)c).Text = "";
        if (c.GetType() == typeof(System.Web.UI.WebControls.RadioButtonList))
        {
            RadioButtonList rbtl = (RadioButtonList)c;
            for (int j = 0; j < rbtl.Items.Count; j++)
                rbtl.Items[j].Selected = false;
        }
        if (c.GetType() == typeof(System.Web.UI.WebControls.DropDownList))
            ((DropDownList)c).SelectedIndex = 0;
        if (c.GetType() == typeof(System.Web.UI.WebControls.RadioButton))
            ((RadioButton)c).Checked = false;
        foreach (Control child in c.Controls)
            ClearControls(child);
}

------------------------------------------------------------------------------------------------------------------------

  private void DisableControls(Control c)
    {
        if ((c is TextBox) || (c is LinkButton) || (c is Button) || (c is CheckBox) || (c is CheckBoxList) || (c is RadioButtonList) || (c is DropDownList) || (c is Panel) || (c is ImageButton))
        {
            ((WebControl)c).Enabled = false;
        }
        foreach (Control child in c.Controls)
            DisableControls(child);
    }

make listbox items colorful

protected void Page_PreRender(object sender, EventArgs e)
{
    bool flag=false;
    foreach (ListItem li in ListBox1.Items)
    {
        if (flag)
        {
            li.Attributes.Add("class", "optred");
            flag = false;
        }
        else
        {
            li.Attributes.Add("class", "optblue");
            flag = true;
        }
    }
}
<style type="text/css">
.optred{background-color:red;}
.optblue{background-color:blue;} 
</style>

make webpage title scrolling

<script type="text/javascript">
    msg = "MyWebPageTitle";
    msg = "..." + msg;pos = 0;
    function scrollMSG() {
    document.title = msg.substring(pos, msg.length) + msg.substring(0, pos);
    pos++;
    if (pos >  msg.length) pos = 0
    window.setTimeout("scrollMSG()",200);
    }
    scrollMSG();
</script>

javascript handlers

// Add handler using the getElementById method
$addHandler(Sys.UI.DomElement.getElementById("Button1"), "click", toggleCssClassMethod);
// Add handler using the shortcut to the getElementById method
$addHandler($get("Button2"), "click", removeCssClassMethod);

String formats

String strVal = "a(1), a1(2), a.3(3), a'4 (4), a.5:(5)";
Regex.Replace(strVal, @"[\w\s';.&,:]+\((\d+)\)", "$1") = 1,2,3,4,5
-----------------------------------------------------------------------
string dNum = "32.123456";
string.Format("{0:c}", double.Parse(dNum)) = $32.12
string.Format("{0:n}", double.Parse(dNum)) = 32.12
string.Format("{0:D}", DateTime.Now) = Thursday, June 28, 2012
string.Format("{0:T}", DateTime.Now) = 10:59:28 AM
DateTime.Now.ToString("dd/MM/yyyy hh:mm:ss") = 28/06/2012 10:59:28
---------------------------------------------------------------------------------
decimal dNum = decimal.Parse("32.12345");
Response.Write(dNum.ToString("0.00"));

image file path to byte[] format

private byte[] imgStream(string filePath)
{
MemoryStream stream = new MemoryStream();
tryagain:
try
{ Bitmap bmp = new Bitmap(filePath);
  bmp.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex) { goto tryagain; }
return stream.ToArray();
}

System.Drawing.ColorTranslator.FromHtml("#D8BFD8");