genrate dinamic slider using aps.net C# with css and JS (wowslider)

// get css from wowslider
// get JS from wowslider

protected void generate_slider()

    {

        string paths = Server.MapPath("FolderName");

        DirectoryInfo d = new DirectoryInfo(paths);

        FileInfo[] Files = d.GetFiles("*");

        HtmlImage img;

        HtmlGenericControl li;

        foreach (FileInfo file in Files)

        {

            string filename = file.Name;// file name find

            string[] str = filename.Split('_');// split with your condtion

            if (str[0] == "check id condition here")

            {

                li = new HtmlGenericControl("li");

                img = new HtmlImage();

                img.Src = "Photo Gallery/" + filename;

                img.Style.Add("min-height:50px; max-height:250px; min-width", "20%");

                img.Alt = "";

                img.ID = str[0] + "" + str[1];

                li.Controls.Add(img);

                sliderid.Controls.Add(li); 

//add htmlgenericcontrol with server control here 'sliderid= server control id'

            }

        }

// reference

http://wowslider.com/image-slider-jquery-epsilon-collage-demo.html

Get all files from directory folder using asp.net c#

// Add namespace

using System.IO;

// listed files

       // 1. for all files of directory folder

       public void getfiles()

    {

        string targetDirectory = Server.MapPath("slider/images");

        DirectoryInfo d = new DirectoryInfo(targetDirectory);//get directory folder

        FileInfo[] Files = d.GetFiles("*"); //get all files from Folder

        string str = "";

        foreach (FileInfo file in Files)

        {

            str = str + "" + file.Name + ", ";

        }

    } 

 // 2. for selected extension files only of directory folder

    public void getfiles()

    {

        string targetDirectory = Server.MapPath("slider/images");

        DirectoryInfo d = new DirectoryInfo(targetDirectory);//get directory folder

        FileInfo[] Files = d.GetFiles("*.jpg");//get all files from Folder

        string str = "";

        foreach (FileInfo file in Files)

        {

            str = str + "" + file.Name + ", ";

        } 

    }

JavaScript : Restrict multiple time entry of and char or number or decimal using javascript on keydown

// HTML

<input type="text" class="decimal" value="" />

            

 or

<asp:TextBox ID="txt_actID" runat="server">

///////  JS

$('input').on('keydown', function (event) {

                return isNumber(event, this);

            });

            function isNumber(evt, element) {

                var charCode = (evt.which) ? evt.which : evt.keyCode;

                if ((charCode != 190 || $(element).val().indexOf('.') != -1) && (charCode != 110 || $(element).val().indexOf('.') != -1)

                && ((charCode < 48 && charCode != 8) || (charCode > 57 && charCode < 96) || charCode > 105))

                    return false;

                return true;

            }

/////////////////or

<asp:TextBox ID="TextBox1" runat="server"   onkeydown="return isNumber(event, this);">

/// js

 function isNumber(evt, element) {

                var charCode = (evt.which) ? evt.which : evt.keyCode;

                if ((charCode != 190 || $(element).val().indexOf('.') != -1) && (charCode != 110 || $(element).val().indexOf('.') != -1)

                && ((charCode < 48 && charCode != 8) || (charCode > 57 && charCode < 96) || charCode > 105))

                    return false;

                return true;

            }

JavaScript : Restrict multiple time entry of and char or number or decimal using javascript on keypress

// HTML

<asp:TextBox ID="TextBox1" runat="server"   onkeypress="return isNumber(this, event);">

// JS

<script type="text/javascript">

function Is_Double_Exits(obj, event) {

            debugger;

            var charCode = (event.which) ? event.which : event.keyCode;

            if (charCode == 46) {   // keycode of decimal

                if (obj.value.indexOf('.') === -1) {

                    return true;

                }

                else {

                    return false;

                }

            }

            else {

                if (charCode > 31 && (charCode < 48 || charCode > 57)) {

                    return false;

                }

                else {

                    return true;

                }

            }

return true;

        }

</script>