How to set cells in datagridview to readonly and BackColor upon construction

check this fro readonly

http://forums.asp.net/t/1072584.aspx/1

    Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
        If e.Row.RowState = DataControlRowState.Edit And (e.Row.RowIndex = 0 Or e.Row.RowIndex = 1) Then
            e.Row.RowState = DataControlRowState.Normal
        End If

to change backcolr try this

http://stackoverflow.com/questions/3738975/asp-net-gridview-dynamic-changing-cell-background

Thanks pratima_mcs.

I am using C# .NET, and I can't find the equivalent of your suggestion. The two lines I currently have in my code are:
They don't work during construction but can only work during cell edit mode.
dgv.Rows[rowIndex].Cells["columnName"].ReadOnly = true;
dgv.Rows[rowIndex].Cells["columnName"].Style.BackColor = Color.LightGray;

By the way, my dgv is bound to a DataSource.

Can you explain what you mean by "They don't work during construction but can only work during cell edit mode."?

What I have is a dgv. This dgv is on a UserControl and is displayed only when a user initiated it (eg. clicking a treenode). ie. at run-time.

This dgv consists of two columns, and is data-binded to a DataSource.
Dependent upon the value on the left-hand side column, the corresponding entry on the right-hand column will be made either editable with a white background, or readonly with a grey background.

What I meant by "don't work during construction" is when user clicks a node to initiate the UserControl construction. It constructs the dgv, creates the data-binding, checks each entry on the left-hand side column and sets the right-hand side column accordingly.
Unfortunately, making them readonly and setting the background color did not take any effect at all.

On the other hand, after it is constructed when I edit a cell on the left-hand side column (eg. changing selection), I could make the corresponding cell on the right-hand side readonly with grey background color.

Your help will be appreciated. Thanks in advance.

I'd tried out with a simple example but this one works fine.
Any idea what could cause the setting on the properties BackColor and ReadOnly not to take any effect?

It resolved the issue