How to populate a data grid view using a model in MVP

Question

In a win forms application there is a grid view in the UI which should be populated with the details of branch offices of the client. There are about 50 branches. So GetBranchDetails() method in the DataService class returns a DataSet and the Presenter class passes that DataSet to the UI's BindData() method in which the datasource property of the grid view is set to the DataSet object as shown in the code.

The problem is the DataService is not returning a model rather it returns a DataSet . Can some one tell me how to use BranchOffice model instead of using a DataSet here? So that the Model should be returned from DataService and then the presenter will pass that Model to UI where the Model will be set as the datasource to the grid view. Please note that always there will be more than one branch offices!

DataService Class

        public DataTable GetBranchDetails()
        {
            string selectStatement = "SELECT ID, branch_name + ', ' + branch_add AS Branch,       area, sm, atten_status FROM Branch WHERE Status='Active'";
            using (SqlConnection sqlConnection = new   SqlConnection(db.GetConnectionString))
            using (SqlCommand sqlCommand = new SqlCommand(selectStatement, sqlConnection))
            using (SqlDataAdapter da = new SqlDataAdapter(sqlCommand))
            using (DataSet ds = new DataSet())
            using (DataTable dt = new DataTable())
           {
              ds.Tables.Add(dt);    
              sqlConnection.Open();
              da.Fill(dt);
              return dt;
           }
        }

Presenter Class

private void _View_ShowBranches(object sender, EventArgs e)
{
    ShowBranches();
}

private void ShowBranches()
{
    var dt = DataService.GetBranchDetails();
    this._View.BindData(dt);
}

View / UI

public partial class frmAttendancePoints : Form, IView
{
    public frmAttendancePoints()
    {
        InitializeComponents();
    }

    public void BindData(DataSet dt)
    {
        dgAttendancePoints.DataSource = dt;
    }
}

Answer 1

Use this method to convert the ADO.NET DataTable to JSON that can be presented in an MVP View:

 string GetJson(DataTable table)
    {
        System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
        List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
        Dictionary<string, object> row = null;
        foreach (DataRow dataRow in table.Rows)
        {
            row = new Dictionary<string, object>();
            foreach (DataColumn column in table.Columns)
            {
                row.Add(column.ColumnName.Trim(), dataRow[column]);
            }
            rows.Add(row);
        }
        return serializer.Serialize(rows);
    }