//Form constructor
public Main()
{
   InitializeComponent();
   BindDataGrid(); //Binds a datatable to the datagridview
   FormatDataGrid();//Formats the grid using DataGridViewCellStyle
   //HERE'S THE PROBLEM, RIGHT HERE NO FORMATTING HAS OCCURED??
}

//Event handler for button
private void btnRefresh_Click(object sender, EventArgs e)
{
   BindDataGrid();
   FormatDataGrid(); //BUT HERE THE FORMATTING DID WORK???
}

I'd appriecate if someone could tell me if this is bug in Beta 2 or if I'm simply overlooking something.

Thanks,
Paulvo.

Can you post the code, or a simplified version that reproduces the problem? 

public partial class Main : Form

{

      public Main()

      {

            InitializeComponent();

            //Get the data...

            BindDataGrid();

            //Call the formatting function...

            FormatDataGrid(); //This call does not format the grid.

      }

      private void BindDataGrid()

      {    

            OleDbDataAdapter da = DB.GetAllEntries(); //DB = static database class

            DataSet ds = new DataSet();

            da.Fill(ds);

            dgrdEntries.DataSource = ds.Tables[0].DefaultView;

            lblRowCount.Text = "Rows: " + ds.Tables[0].Rows.Count.ToString();

            ListUserTotals();

      }

      private void FormatDataGrid()

      {

            //Change font

            dgrdEntries.RowsDefaultCellStyle.Font = new Font("arial", 7);

            //Change [Amount] and [Deduction] columns to be currency format

            DataGridViewCellStyle cellStyle = new DataGridViewCellStyle();

            cellStyle.Format = "C";

            dgrdEntries.Columns["Amount"].DefaultCellStyle = cellStyle;

            dgrdEntries.Columns["Deduction"].DefaultCellStyle = cellStyle;

            //Change [Total] column to have darkred font color and currency

            cellStyle = new DataGridViewCellStyle();

            cellStyle.ForeColor = Color.DarkRed;

            cellStyle.Format = "C";

            dgrdEntries.Columns["Total"].DefaultCellStyle = cellStyle;

            dgrdEntries.Columns["Owed Amount"].DefaultCellStyle = cellStyle;

            //Hide two columns.

            dgrdEntries.Columns[0].Visible = false;

            dgrdEntries.Columns["notes"].Visible = false;

      }

      //Event handler for "Refresh" button.

      private void refreshGridToolStripButton_Click(object sender, EventArgs e)

      {

            //Get the data...

            BindDataGrid();

            //Call the formatting function...

            FormatDataGrid(); //This formats the grid as expected!

      }

}

Hope this helps.

This was a bug in Beta2 that is fixed in the RTM version. Columns changes done before the grid is fully databound were lost. In the RTM version we preserve column changes (properties applied to columns).

There are a few workarounds:
In your BindDataGrid method, after you set the DataSource of the DataGridView, set the DataGridView's AutoGenerateColumns property to false.

hope this helps,
-mark
DataGridView Program Manager
Microsoft
This post is provided "as-is"