Updating the Data

Use the adapter's Update method to update the data. This overloaded method can take a DataTable as a parameter and will commit all the changes made to the data source. The name of the data table can be passed as an argument as well to update the entire dataset in a more traditional manner. When using a data table as an argument to the Update method, the adapter evaluates the changes that have been made to the data table and executes the appropriate command for each row (INSERT, UPDATE, or DELETE).

The example below updates the FullName of one of the Lead entries.

C#

  using (SimpleDBConnection connection = new SimpleDBConnection(connectionString)) {
    SimpleDBDataAdapter dataAdapter = new SimpleDBDataAdapter(
      "SELECT Id, FullName FROM Lead", connection);

    dataAdapter.UpdateCommand = new SimpleDBCommand(
      "UPDATE Lead SET FullName = @FullName " +
      "WHERE Id = @ID", connection);

    dataAdapter.UpdateCommand.Parameters.AddWithValue("@FullName", "FullName");
    dataAdapter.UpdateCommand.Parameters.AddWithValue("@Id", "Id");

    DataTable table = new DataTable();
    dataAdapter.Fill(table);

    DataRow firstrow = table.Rows[0];
    firstrow["FullName"] = "The Joker";

    dataAdapter.Update(table);

    Console.WriteLine("Rows after update.");
    
    foreach (DataRow row in table.Rows) {
      Console.WriteLine("{0}: {1}", row["Id"], row["FullName"]);
    }
  }

VB.NET

  Using connection As New SimpleDBConnection(connectionString)
    Dim dataAdapter As New SimpleDBDataAdapter(
      "SELECT Id, FullName FROM Lead", connection)
    
    dataAdapter.UpdateCommand = New SimpleDBCommand(
      "UPDATE Lead SET FullName = @FullName " +
      "WHERE Id = @ID", connection)
    
    dataAdapter.UpdateCommand.Parameters.AddWithValue("@FullName", "FullName")
    dataAdapter.UpdateCommand.Parameters.AddWithValue("@Id", "Id")
    
    Dim table As New DataTable()
    dataAdapter.Fill(table)
    
    Dim firstrow As DataRow = table.Rows(0)
    firstrow("FullName") = "The Joker"
    
    dataAdapter.Update(table)
    
    Console.WriteLine("Rows after update.")
    
    For Each row As DataRow In table.Rows
      Console.WriteLine("{0}: {1}", row("Id"), row("FullName"))
    Next
  End Using