Vb.net Code To Retrieve Data From Sql Server May 2026

DataGridView1.DataSource = employees Label1.Text = $"Loaded employees.Count records" Button1.Enabled = True End Sub Here's a complete working example with a helper class:

Using connection As New SqlConnection(connectionString) Dim query As String = "SELECT EmployeeID, FirstName, LastName, Department, Salary FROM Employees" Dim adapter As New SqlDataAdapter(query, connection) Try adapter.Fill(dataTable) Catch ex As SqlException MessageBox.Show("Error: " & ex.Message) End Try End Using vb.net code to retrieve data from sql server

Private Async Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click ' Show loading indicator Button1.Enabled = False Label1.Text = "Loading data..." Dim employees As List(Of Employee) = Await GetEmployeesAsync() DataGridView1

Return employees End Function

CREATE TABLE Employees ( EmployeeID INT PRIMARY KEY IDENTITY(1,1), FirstName NVARCHAR(50), LastName NVARCHAR(50), Department NVARCHAR(50), Salary DECIMAL(10,2) ); SqlDataReader provides the fastest read performance for large result sets but is read-only and forward-only. vb.net code to retrieve data from sql server

Return dataTable End Function For Windows Forms or WPF applications, use async methods to keep the UI responsive.