Generic in C# with example?

Generic can be defined as <T> sign after the class name, by using the generic there is no need of boxing and unboxing. Generic also can be implemented with interfaces, delegates and methods.

Example:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

    class Class1<T>

    {

        T i;

        public T prop1

        {

            get

            {

                return i;

            }

            set

            {

                i = value;

            }

        }

    }

}

Code on button click:

Class1<int> obj = new Class1<int>();

        private void button1_Click(object sender, EventArgs e)

        {

            obj.prop1 = 100;

            int x = obj.prop1;

            MessageBox.Show(x.ToString());

        }

Output : 100

Write Dynamically Text on Image in ASP.NET C#

In this article, I am going to explain how to write some text on a image in ASP. net c#.

Follow given below step to write text on an image in asp.net c#

Step 1

Go to Menu File->New-Project

Step 2

After clicking on project a new window will be open

select ASP.NET Web Application and write the name "DynamicTextOnImage" and click on "OK" button.

Code that write text on image

string name = "Dear Reader,";                   Bitmap bitMapImage = new System.Drawing.Bitmap(Server.MapPath(@"happynewyear.jpg"));                 Graphics graphicImage = Graphics.FromImage(bitMapImage);                   Color colorStringColor = System.Drawing.ColorTranslator.FromHtml("#ffffff");                 graphicImage.DrawString(name, new Font("Arial", 15, FontStyle.Bold), new SolidBrush(colorStringColor), new Point(100, 8));                   string stringOutPutFileName = Server.MapPath("Image\\happynewyear.jpg");                   using (MemoryStream memory = new MemoryStream())                 {                     using (FileStream fs = new FileStream(stringOutPutFileName, FileMode.Create, FileAccess.ReadWrite))                     {                         bitMapImage.Save(memory, ImageFormat.Jpeg);                         byte[] bytes = memory.ToArray();                         fs.Write(bytes, 0, bytes.Length);                     }                 }                 graphicImage.Dispose();                 bitMapImage.Dispose();                 bitMapImage.Dispose();

aspx.cs code

using System; using System.Drawing; using System.IO; using System.Drawing.Imaging;   namespace DynamicTextOnImage {     public partial class _Default : System.Web.UI.Page     {         protected void Page_Load(object sender, EventArgs e)         {               try             {                 string name = "Dear Reader,";                   Bitmap bitMapImage = new System.Drawing.Bitmap(Server.MapPath(@"happynewyear.jpg"));                 Graphics graphicImage = Graphics.FromImage(bitMapImage);                   Color colorStringColor = System.Drawing.ColorTranslator.FromHtml("#ffffff");                 graphicImage.DrawString(name, new Font("Arial", 15, FontStyle.Bold), new SolidBrush(colorStringColor), new Point(100, 8));                   string stringOutPutFileName = Server.MapPath("Image\\happynewyear.jpg");                   using (MemoryStream memory = new MemoryStream())                 {                     using (FileStream fs = new FileStream(stringOutPutFileName, FileMode.Create, FileAccess.ReadWrite))                     {                         bitMapImage.Save(memory, ImageFormat.Jpeg);                         byte[] bytes = memory.ToArray();                         fs.Write(bytes, 0, bytes.Length);                     }                 }                 graphicImage.Dispose();                 bitMapImage.Dispose();                 bitMapImage.Dispose();             }             catch (Exception ex)             {               }         }     } }

Image before writing text on image

 

image source

www.google.com

 

After writing text on image