Database operations in DatagridView

The DataGridView control can display rows of data from a data source. The DataGridView can display data in Bound mode, unbound mode and Virtual mode . Bound mode is suitable for managing data using automatic interaction with the data store. One very common use of the DataGridView control is binding to a table in a database. Unbound mode is suitable for displaying relatively small amounts of data that you manage programmatically. Virtual mode gives you a higher degree of control by allowing you to wait until a cell is actually being displayed to provide the value it will contain.

The following vb.net source code illustrate how to connect a DataGridView to a database and addnew/update or delete the database values from DataGridView.

Next : Delete row from datagridview by Right click

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Imports System.Data.SqlClient
Public Class Form1
    Dim sCommand As SqlCommand
    Dim sAdapter As SqlDataAdapter
    Dim sBuilder As SqlCommandBuilder
    Dim sDs As DataSet
    Dim sTable As DataTable

    Private Sub load_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles load_btn.Click
        Dim connectionString As String = "Data Source=.;Initial Catalog=pubs;Integrated Security=True"
        Dim sql As String = "SELECT * FROM Stores"
        Dim connection As New SqlConnection(connectionString)
        connection.Open()
        sCommand = New SqlCommand(sql, connection)
        sAdapter = New SqlDataAdapter(sCommand)
        sBuilder = New SqlCommandBuilder(sAdapter)
        sDs = New DataSet()
        sAdapter.Fill(sDs, "Stores")
        sTable = sDs.Tables("Stores")
        connection.Close()
        DataGridView1.DataSource = sDs.Tables("Stores")
        DataGridView1.ReadOnly = True
        save_btn.Enabled = False
        DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect

    End Sub

    Private Sub new_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles new_btn.Click
        DataGridView1.[ReadOnly] = False
        save_btn.Enabled = True
        new_btn.Enabled = False
        delete_btn.Enabled = False
    End Sub

    Private Sub delete_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles delete_btn.Click
        If MessageBox.Show("Do you want to delete this row ?", "Delete", MessageBoxButtons.YesNo) = DialogResult.Yes Then
            DataGridView1.Rows.RemoveAt(DataGridView1.SelectedRows(0).Index)
            sAdapter.Update(sTable)
        End If
    End Sub

    Private Sub save_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles save_btn.Click
        sAdapter.Update(sTable)
        DataGridView1.[ReadOnly] = True
        save_btn.Enabled = False
        new_btn.Enabled = True
        delete_btn.Enabled = True
    End Sub
End Class

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