FileUpload in Asp.net C#

Step:1 Create a new Web Page

Step:2 Select an Empty Web Site and name it

Step:3 Go to Solution Explorer Create a folder to save images and Right click and Add Item form on it and name it.

Step:4 Default.aspx

Step:5 Coding Page default.aspx.cs

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
   
     
    }
    protected void AdRotator1_AdCreated(object sender, AdCreatedEventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (FileUpload1 .HasFile )
        {
            FileUpload1 .SaveAs(Server.MapPath ("~/image/"+FileUpload1 .FileName));

            Label1.Text = "~/image/" +FileUpload1.FileName;

            Image1.ImageUrl = Label1.Text;
        }
        else
        {
            Label1.Text = "";
        }
    }

}

Step:6 Run it

CheckBox Example in Asp.net C#

Step:1 Create a new Web Page

Step:2 Select an empty Website and name it .

Step:3 Go to Solution Explorer Right Click on it and Add items or form Default.aspx and name it.

Step:4 Design the form as shown below

Step:5  Coding Side Default.aspx.cs

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text = TextBox1.Text;
        Label2.Text = TextBox2.Text;
        if (CheckBox1 .Checked !=null||CheckBox2 .Checked !=null||CheckBox3 .Checked !=null  )
        {
            if (CheckBox1.Checked == true && CheckBox2.Checked == true && CheckBox3.Checked==true)
            {
                Label3.Text = CheckBox1.Text+","+CheckBox2.Text+","+CheckBox3.Text  ;

            }
            else if (CheckBox1.Checked == true && CheckBox3.Checked == true)
            {
                Label3.Text = CheckBox1.Text + CheckBox3.Text;

            }
            else if (CheckBox2.Checked == true && CheckBox3.Checked == true)
            {
                Label3.Text = CheckBox2.Text + CheckBox3.Text;

            }
            else if (CheckBox2.Checked == true && CheckBox1.Checked == true)
            {
                Label3.Text = CheckBox2.Text + CheckBox1.Text;

            }
         
            else if(CheckBox1.Checked==true)
            {
                Label3.Text = CheckBox1.Text;
            }
            else if (CheckBox2.Checked == true)
            {
                Label3.Text = CheckBox2.Text;
            }else if(CheckBox3.Checked==true)
            {
                Label3.Text = CheckBox3.Text;
            }
            else
            {
                Label3.Text = "";
            }
        }
        else
        {
            Label3.Text = "";
        }
   
    }
}

Step:6 Save it and Run it.

Digital Clock in Asp.net C#

Step:1 Create a new web page

Step:2 Select empty WebSite and name it

Step:3 Go to Solution Explorer Right Click Add Items Select Default.aspx and name it whatever you want

Step:4 Source Code

Step:5 Coding Side default.aspx.cs

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Timer1_Tick(object sender, EventArgs e)
    {
        Label3.Text = Convert .ToString (Convert .ToInt32 (Label3 .Text) - 1);
        if (Convert .ToInt32  (Label3  .Text) ==0)
        {
            Label2 .Text =Convert .ToString (Convert .ToInt32 (Label2 .Text )-1);
            Label3.Text = Convert.ToString(60);
        }
        if (Convert .ToInt32 (Label2 .Text )==0)
        {
            Label1 .Text =Convert .ToString(Convert .ToInt32 (Label1 .Text )+1);
            Label2.Text = Convert.ToString(60);
        }
    }
}

Step:6 Save it and Run it .

Cookies Example in Asp.net C#

Step:1 Create a new website page

Step:2 Select an Empty Web Site

Step:3 Go to Solution Explorer and Right Click now click on Add items and select n Form and Name it its default name is Default.aspx. put one image to display as i put in below as christmas-110v.jpg and like.jpg is for like button and unlike.jpg is for unlike image .

Step:4 Coding on default.aspx.cs file
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

     
   
        if (Request .Cookies ["like"]!=null && Request .Cookies ["unlike"]!=null )
        {
            Label1.Text = Request.Cookies["like"].Values["u1"].ToString();
            Label2.Text = Request.Cookies["unlike"].Values["u2"].ToString();
         
        }

     
    }
 
    protected void Button1_Click(object sender, EventArgs e)
    {
     
        HttpCookie c1 = new HttpCookie("like");
        c1.Values.Add("u1", Convert.ToString(Convert.ToInt32(Label1.Text) + 1));
        c1.Expires = System.DateTime.Now.AddDays(30);
        Response.Cookies.Add(c1);
        Response.Redirect(Request.RawUrl);
     
    }
    protected void Button2_Click(object sender, EventArgs e)
    {

     

        HttpCookie c2 = new HttpCookie("unlike");
        c2.Values.Add("u2", Convert.ToString(Convert.ToInt32(Label2.Text) + 1));
        c2.Expires = System.DateTime.Now.AddDays(30);
        Response.Cookies.Add(c2);
        Response.Redirect(Request.RawUrl);
     
    }
    protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
    {

    }
    protected void ImageButton1_Click1(object sender, ImageClickEventArgs e)
    {

    }
}

Step:5 Save it and run it 

Textbox into Dropdown list in ASP.Net C#

• First we have to take 1textbox,2 buttons and 1 dropdownlist .
• textbox for entering value 
• 2 buttons one for add the values and second for removing values from dropdownlist

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        DropDownList1.Items.Add(TextBox1.Text);
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        DropDownList1.Items.Remove(TextBox1.Text);
    }
}

Texbox into Dropdownlist