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Sqlite Addition
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‎content/blog/general/sqlite.md

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---
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title: "Sqlite Database "
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author: "PrashantUnity"
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weight: 100
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date: 2025-01-01
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lastmod: 2025-01-01
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dateString: January 2025
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description: "Populate Sqlite Data Base Using Poluglot Notebook and Net"
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#canonicalURL: "https://canonical.url/to/page"
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cover:
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image: "sqlite.svg" # image path/url
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alt: "Download Logo" # alt text
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#caption: "Optical Character Recognition" display caption under cover
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tags: [ "NET", "codefrydev", "C sharp", "CFD","Sqlite"]
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keywords: [ "NET", "codefrydev", "C sharp", "CFD" ,"Sqlite"]
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---
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# Nuget Package
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## Create .ipynb file
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```csharp
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#r "nuget: Faker.Net, 2.0.163"
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#r "nuget:SkiaSharp, 3.116.1"
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#r "nuget: System.Data.SQLite.Core, 1.0.119"
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```
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## Importing namespace
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```csharp
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using Faker;
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using System.IO;
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using SkiaSharp;
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Data.SQLite;
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```
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## Create Class
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```csharp
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public class Book
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{
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public int Id { get; set; }
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public string Title { get; set; }
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public string Author { get; set; }
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public byte[] Image { get; set; }
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public decimal Price { get; set; }
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public string Description { get; set; }
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public DateTime PublishDate { get; set; }
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public string Category { get; set; }
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}
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```
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## Bunch of Color for random background color
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```csharp
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var listOfColor = new List<SKColor>
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{
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SKColor.Parse("#86B6F6"),
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SKColor.Parse("#176B87"),
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SKColor.Parse("#00A9FF"),
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SKColor.Parse("#FF90BC"),
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SKColor.Parse("#8ACDD7"),
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SKColor.Parse("#F2AFEF"),
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SKColor.Parse("#C499F3"),
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SKColor.Parse("#33186B"),
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};
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```
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## Sqlite Database File Location
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```csharp
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var connectionString = @"Data Source=C:\Users\91746\source\repos\Shopping\Shopping\BookStore.db";
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```
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## This will Generate Data for Cover Image Dynamically
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```csharp
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byte[] Generate<T>(T book)
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{
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int width = 480;
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int height = 540;
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int marginY = -10;
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int marginX = -10;
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string mainText =Faker.Name.First(); //book.Title;
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string subText = Faker.Name.Last();
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string backGroundColor =listOfColor[Faker.RandomNumber.Next(0,listOfColor.Count()-1)].ToString();
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string textColor = "#ffffff";
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string boderColor = "#ffffff";
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SKBitmap bmp = new(width, height);
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SKCanvas canvas = new(bmp);
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canvas.Clear(SKColor.Parse(backGroundColor));
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using (var paint = new SKPaint())
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{
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paint.TextSize = width/ 10.0f;
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paint.IsAntialias = true;
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paint.Color = SKColor.Parse(textColor);
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paint.IsStroke = false;
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paint.StrokeWidth = 3;
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paint.TextAlign = SKTextAlign.Center;
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canvas.DrawText(mainText, width / 2f, height / 2f, paint);
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paint.TextSize = width/ 25.0f;
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paint.TextAlign = SKTextAlign.Right;
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canvas.DrawText(subText, width+marginX, height+marginY, paint);
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paint.TextSize = width/ 20.0f;
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paint.IsStroke = true;
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paint.TextAlign = SKTextAlign.Center;
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paint.Color = SKColor.Parse(textColor);
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}
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//SKFileWStream fs = new($"Images/{book.Title}.jpg");
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//bmp.Encode(fs, SKEncodedImageFormat.Jpeg, quality: 50);
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bmp.Encode(SKEncodedImageFormat.Jpeg,100);
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using (MemoryStream ms = new MemoryStream())
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{
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bmp.Encode(ms, SKEncodedImageFormat.Jpeg, 100);
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return ms.ToArray();
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}
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return bmp.Bytes;
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}
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```
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## Using Reflection For Auto filling Data To Proprties
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```csharp
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T GetObjectOf<T>()
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{
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Type objectType = typeof(T);
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object objectObject = Activator.CreateInstance(objectType);
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// Get the properties of the Book class
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PropertyInfo[] properties = objectType.GetProperties();
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// Use Faker.NET to populate the properties dynamically
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foreach (var property in properties)
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{
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// Skip the 'Id' property as it's usually auto-generated
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if (property.Name == "Id")
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continue;
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// Create fake data based on the property type
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if (property.PropertyType == typeof(string))
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{
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property.SetValue(objectObject, Faker.Name.FullName());
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}
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else if (property.PropertyType == typeof(int))
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{
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// Assign a random integer
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property.SetValue(objectObject, Faker.RandomNumber.Next());
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}
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else if (property.PropertyType == typeof(decimal))
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{
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// Assign a random decimal value
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property.SetValue(objectObject, (decimal)(Faker.RandomNumber.Next(01,1000) ));
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}
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else if (property.PropertyType == typeof(DateTime))
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{
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// Assign a random past date
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property.SetValue(objectObject, DateTime.Now.AddMonths(Faker.RandomNumber.Next(1,100)));
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}
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else if (property.PropertyType == typeof(byte[]))
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{
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// Assign a random byte array (representing an image or file)
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property.SetValue(objectObject, Generate((T)objectObject));
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}
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else if (property.PropertyType == typeof(System.Enum))
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{
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// For enum types, assign a random enum value if the property is of enum type
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Array enumValues = property.PropertyType.GetEnumValues();
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var randomEnumValue = enumValues.GetValue(Faker.RandomNumber.Next(0, enumValues.Length));
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property.SetValue(objectObject, randomEnumValue);
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}
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}
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return (T)objectObject;
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}
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```
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## Generate Bunch Of Book Will bw used to insert to database
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```csharp
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List<T> GeBook<T>()
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{
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var ls = new List<T>();
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for(var i=0;i<50;i++)
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{
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var newBook = GetObjectOf<T>();
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ls.Add(newBook);
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}
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return ls;
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}
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```
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## Dynamically Creating SqlQuery string Using Reflection
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```csharp
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public void InsertBook<T>(T entity, string queryString)
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{
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string insertQuery = queryString;
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try
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{
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using (SQLiteConnection conn = new SQLiteConnection(connectionString))
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{
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try
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{
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conn.Open();
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using (SQLiteCommand cmd = new SQLiteCommand(insertQuery, conn))
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{
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Type type = typeof(T);
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// Get all properties of the Book class using Reflection
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PropertyInfo[] properties = type.GetProperties();
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foreach (var property in properties)
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{
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// Get the name of the property
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string propertyName = property.Name;
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object propertyValue = property.GetValue(entity);
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cmd.Parameters.AddWithValue($"@{propertyName}", propertyValue);
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}
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var num = cmd.ExecuteNonQuery();
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}
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}
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catch(Exception ex)
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{
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Console.WriteLine(ex.Message);
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}
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}
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}
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catch(Exception ex)
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{
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Console.WriteLine(ex.Message);
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}
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}
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```
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## Here data is inserted to database
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```csharp
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string InsertCommandStringGenerator<T>()
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{
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Type bookType = typeof(T);
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// Get all the properties of the Book class
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PropertyInfo[] properties = bookType.GetProperties();
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// Initialize StringBuilder to construct the SQL query
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StringBuilder insertQuery = new StringBuilder();
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// Start building the SQL query
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insertQuery.AppendLine("INSERT INTO Books (");
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// Loop through the properties to add column names
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for (int i = 0; i < properties.Length; i++)
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{
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if(properties[i].Name.ToLower()=="id") continue;
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insertQuery.Append(properties[i].Name);
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if (i < properties.Length - 1)
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{
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insertQuery.Append(", ");
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}
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}
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insertQuery.AppendLine(") VALUES (");
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// Loop through the properties again to add parameter placeholders
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for (int i = 0; i < properties.Length; i++)
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{
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if(properties[i].Name.ToLower()=="id") continue;
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insertQuery.Append("@");
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insertQuery.Append(properties[i].Name);
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if (i < properties.Length - 1)
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{
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insertQuery.Append(", ");
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}
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}
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insertQuery.AppendLine(");");
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return insertQuery.ToString();
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}
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```
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## Final Command To populate all above
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```csharp
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var queryString = InsertCommandStringGenerator<Book>();
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foreach(var item in GeBook<Book>())
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{
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InsertBook(item,queryString);
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}
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```

‎content/blog/general/sqlite/sqlite.svg

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‎content/blog/general/streamvideo.md

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2020
## Stream Video in Asp.net Core with seeking Function
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- Create One Controller CLass and Paste below code in side that class.
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- Create One Controller CLass and Paste below code in side that class.
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```csharp
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[HttpGet("{fileName}")]
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public IActionResult GetMedia(string fileName)
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return new FileStreamResult(responseStream, mimeType);
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}
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```
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```

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