The document discusses how to use SQLite databases in a Universal Windows Platform (UWP) application. It includes instructions to install SQLite extensions from NuGet and create, read, update and delete database records using CRUD operations. It provides code examples to create a database, insert, retrieve, update and delete student records from the database and bind the data to a list view.

1. Prepared by
ENG SOON CHEAH
Microsoft MVP

2. Install SQLite-UAP extensions form NuGet Package Manager

3. Next Install SQLite.Net-PCL extension from NuGet Package

4. • Include 4 functions CRUD Operations
• Bind data to a ListBox

5. <Grid Background="#FFF589E2">
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<Button x:Name="CreateDBbutton" Grid.Row="0" Content="Create Local Database" HorizontalAlignment="Center"
VerticalAlignment="Top" Click="button_Click" />
<Button x:Name="create" Grid.Row="1" Content="Create New Students" HorizontalAlignment="Center" Click="creat
e_Click"></Button>
<Button x:Name="read" Grid.Row="2" Content="Read Students List" Width="300" Click="read_Click" HorizontalAlig
nment="Center"></Button>
<Button x:Name="update" Grid.Row="3" Content="Update Details" Width="300" Click="update_Click" HorizontalAli
gnment="Stretch"></Button>
<ListView x:Name="allstudents" HorizontalAlignment="Stretch" Grid.Row="4">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock x:Name="ee" Text="{Binding Name}" FontSize="14"></TextBlock>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>

6. public class Students
{
[SQLite.Net.Attributes.PrimaryKey, SQLite.Net.Attributes.AutoIncrement]
public int Id
{
get;
set;
}
public string Name
{
get;
set;
}
public string Address
{
get;
set;
}
public string Mobile
{
get;
set;
}
public Students()
{}
public Students(string name, string address, string mobile)
{
Name = name;
Address = address;
Mobile = mobile;
}
}

7. public static void CreateDatabase()
{
var sqlpath = System.IO.Path.Combine(Windows.Stora
ge.ApplicationData.Current.LocalFolder.Path, "Studentdb.
sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLit
e.Net.SQLiteConnection(new SQLite.Net.Platform.WinRT.
SQLitePlatformWinRT(), sqlpath))
{
conn.CreateTable < Students > ();
}
}

8. public void Insert(Students objContact)
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.Appli
cationData.Current.LocalFolder.Path, "Studentdb.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.S
QLiteConnection(new SQLite.Net.Platform.WinRT.SQLitePlatform
WinRT(), sqlpath))
{
conn.RunInTransaction(() =>
{
conn.Insert(objContact);
});
}
}

9. // Retrieve the specific contact from the database.
public Students ReadContact(int contactid)
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.Appli
cationData.Current.LocalFolder.Path, "Studentdb.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.S
QLiteConnection(new SQLite.Net.Platform.WinRT.SQLitePlatform
WinRT(), sqlpath))
{
var existingconact = conn.Query < Students > ("select * fro
m Students where Id =" + contactid).FirstOrDefault();
return existingconact;
}
}

10. //Read All Student details
public ObservableCollection < Students > ReadAllStudents()
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.ApplicationData.Cur
rent.LocalFolder.Path, "Studentdb.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.SQLiteConnectio
n(new SQLite.Net.Platform.WinRT.SQLitePlatformWinRT(), sqlpath))
{
List < Students > myCollection = conn.Table < Students > ().ToList < Stud
ents > ();
ObservableCollection < Students > StudentsList = new ObservableCollecti
on < Students > (myCollection);
return StudentsList;
}
}

11. //Update student detaisl
public void UpdateDetails(string name)
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "Student
db.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.SQLiteConnection(new SQLite.Net.Platform.Win
RT.SQLitePlatformWinRT(), sqlpath))
{
var existingconact = conn.Query < Students > ("select * from Students where Name =" + name).FirstOrDe
fault();
if (existingconact != null)
{
existingconact.Name = name;
existingconact.Address = "NewAddress";
existingconact.Mobile = "962623233";
conn.RunInTransaction(() =>
{
conn.Update(existingconact);
});
}
}
}

12. //Delete all student or delete student table
public void DeleteAllContact()
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "Studentdb.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.SQLiteConnection(new SQLite.Net.Platform.WinRT.SQLitePlatformW
inRT(), sqlpath))
{
conn.DropTable < Students > ();
conn.CreateTable < Students > ();
conn.Dispose();
conn.Close();
}
}
Delete specific student
//Delete specific student
public void DeleteContact(int Id)
{
var sqlpath = System.IO.Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "Studentdb.sqlite");
using(SQLite.Net.SQLiteConnection conn = new SQLite.Net.SQLiteConnection(new SQLite.Net.Platform.WinRT.SQLitePlatformW
inRT(), sqlpath))
{
var existingconact = conn.Query < Students > ("select * from Studentdb where Id =" + Id).FirstOrDefault();
if (existingconact != null)
{
conn.RunInTransaction(() =>
{
conn.Delete(existingconact);
});
}
}
}

13. • Local Data Base SQLite for Windows 10
https://code.msdn.microsoft.com/Local-
Data-Base-SQLite-for-5e6146aa