ODBC and C# Express edition -- dotnet framework

Colin Williams
6/14/2007 1:41:19 PM

Hi

I have some paradox db's i need to connect to. I have figured out that
i can do this using ODBC, however C# Express edition does not support
this connectivity easily and must be done programmatically. I have a
class to do this:

public static class Data
{
public const string SelectAllCommandText = "select * from
WindowInfo";

public static string ConnectionString;

public static DataSet GetWinInfoDataSet()
{
if (string.IsNullOrEmpty(ConnectionString))
throw new ArgumentNullException("ConnectionString");

DataSet result = new DataSet("WinInfo");

using (OdbcConnection connection = new
OdbcConnection(ConnectionString))
{
using (OdbcCommand command = new
OdbcCommand(SelectAllCommandText))
{
command.Connection = connection;
using (OdbcDataAdapter dataAdapter = new
OdbcDataAdapter(command))
{
dataAdapter.Fill(result);
connection.Close();
}
}
}
return result;
}
}

Which seems OK.
Need nelp on how to populate/bind a datagridview on my form. How can
tweak the code below to do this?

private void FormMain_Load(object sender, EventArgs e)
{

Data.ConnectionString = Settings.Default.ConnectionString;

dataSet1 = Data.GetWinInfoDataSet();
bindingSource1.DataSource =
dataSet1.Tables["WindowInfo"] ;
dataGridView1.DataSource = bindingSource1;

}

Many Thanks

Colin Williams

Kevin Spencer
6/15/2007 6:29:42 AM

Hi Colin,

Here's a basic example (using a DataGridView) with comments:

// Declare the BindingSource variable
private System.Windows.Forms.BindingSource warehouseBindingSource;

// InitializeComponent method to add components to form
private void InitializeComponent()
{
//...
this.components = new System.ComponentModel.Container();
//...
// Create BindingSource and add to components
this.warehouseBindingSource = new
System.Windows.Forms.BindingSource(this.components);

// Initialize the component
((System.ComponentModel.ISupportInitialize)(this.warehouseBindingSource)).BeginInit();

// Assign BindingSource to DataGridView
this.warehouseGridView.BindingSource = this.warehouseBindingSource;

// Identify DataTable in DataSet to be bound to
this.warehouseBindingSource.DataMember = "Warehouse";

// Identify BindingSource (DataSet) to be bound to
this.warehouseBindingSource.DataSource = this.inventoryDataSet;

// End Initialization
((System.ComponentModel.ISupportInitialize)(this.warehouseBindingSource)).EndInit();
//...
}

// Form constructor method
public Form1()
{
//...
// Call InitializeComponent
InitializeComponent();
// ...
// Fill DataSet from TableAdapter
this.warehouseTableAdapter.Fill(this.inventoryDataSet.Warehouse);
//...
}

--
HTH,

Kevin Spencer
Microsoft MVP

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dotnet framework : ODBC and C# Express edition