"Data Source= Initial Catalog=Northwind " + ' Replace "Integrated Security=True" with user login information if necessary. ' Replace with the SQL Server for your Northwind sample database. Private Sub GetData(ByVal selectCommand As String) Text = "DataGridView data binding and updating demo" SubmitButton.Click += new EventHandler(SubmitButton_Click) įlowLayoutPanel panel = new FlowLayoutPanel ReloadButton.Click += new EventHandler(ReloadButton_Click) Private Button submitButton = new Button() Private Button reloadButton = new Button() Private SqlDataAdapter dataAdapter = new SqlDataAdapter() Private BindingSource bindingSource1 = new BindingSource() Private DataGridView dataGridView1 = new DataGridView() For more information about connection security, see Protect connection information. Windows Authentication, also called integrated security, is a more secure way to connect to the database than storing a password in the connection string. Populate the connectionString variable in the example with the values for your Northwind SQL Server sample database connection. For information about building from the C# or Visual Basic command line, see Command-line building with csc.exe or Build from the command line. To build and run this example, paste the code into the Form1 code file in a new Windows Forms project. References to the System,, System.Data, and System.Xml assemblies. For more information about installing the Northwind sample database, see Get the sample databases for ADO.NET code samples. The form also has buttons to reload data and submit changes to the database.Īccess to a Northwind SQL Server sample database. This complete code example retrieves data from a database to populate a DataGridView control in a Windows form. In the form's Load event handler, bind the DataGridView control to the BindingSource, and call the GetData method to retrieve the data. It then binds the DataTable to the BindingSource. The following code example implements a GetData method that initializes a SqlDataAdapter, and uses it to populate a DataTable. Implement a method to handle the details of retrieving the data. To connect a DataGridView control to data: For more information, see How to: Bind data to the Windows Forms DataGridView control using the Designer. Visual Studio has extensive support for data binding to the DataGridView control. For more information about data sources the DataGridView control supports, see the DataGridView control overview. The BindingSource can be any Windows Forms data source, which gives you great flexibility when choosing or modifying your data's location. Usually, you bind to a BindingSource that manages the interaction with the data source. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.ClickĭataGridView1.Columns(0).Name = "Product ID"ĭataGridView1.Columns(1).Name = "Product Name"ĭataGridView1.Columns(2).Name = "Product_Price"ĭim row As String() = New String() ĭim cmb As New DataGridViewComboBoxColumn()īy using either of these methods, you can effortlessly populate the ComboBox drop-down list within the DataGridView control, ensuring a smooth user experience while interacting with the data presented in your application.The DataGridView control supports the standard Windows Forms data binding model, so it can bind to a variety of data sources.
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