Dim query As String = "UPDATE Users SET FirstName=@FirstName, LastName=@LastName, Email=@Email, Age=@Age WHERE UserID=@UserID"
Private Function ValidateInputs() As Boolean If String.IsNullOrWhiteSpace(txtFirstName.Text) Then MessageBox.Show("First Name is required") Return False End If
' Get the UserID from the selected row Dim userID As Integer = Convert.ToInt32(dgvUsers.SelectedRows(0).Cells("UserID").Value) vb.net access database example
Imports System.Data.OleDb Public Class Form1 Dim connectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\VB.NET Projects\Demo\SampleDB.accdb"
Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click If dgvUsers.SelectedRows.Count = 0 Then MessageBox.Show("Please select a record to update") Return End If If ValidateInputs() = False Then Exit Sub Dim query As String = "UPDATE Users SET
Private Sub btnLoad_Click(sender As Object, e As EventArgs) Handles btnLoad.Click LoadData() End Sub Private Sub LoadData() Dim query As String = "SELECT * FROM Users"
Private Sub ClearInputs() txtFirstName.Clear() txtLastName.Clear() txtEmail.Clear() txtAge.Clear() txtFirstName.Focus() End Sub Private Sub dgvUsers_CellClick(sender As Object, e As DataGridViewCellEventArgs) Handles dgvUsers.CellClick If e.RowIndex >= 0 Then Dim row As DataGridViewRow = dgvUsers.Rows(e.RowIndex) txtFirstName.Text = row.Cells("FirstName").Value.ToString() txtLastName.Text = row.Cells("LastName").Value.ToString() txtEmail.Text = row.Cells("Email").Value.ToString() txtAge.Text = row.Cells("Age").Value.ToString() End If End Sub Here's the complete form code: vb.net access database example
MessageBox.Show("Record added successfully!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information) ClearInputs() LoadData() ' Refresh the grid End Sub