I have dataset as you can see below.I want to hide first three columns. But the way I do below doesnt work. How can I do hide them?
// Read all posts and fill gridview
//////////////////////////////////////////////////
DbCommand dbCommand2;
dbCommand2 = db.GetStoredProcCommand("PC_Select_News");
db.AddInParameter(dbCommand2, "UserId", DbType.Guid, new Guid(Session["SessionUserId"].ToString().Trim()));
DataSet ds = db.ExecuteDataSet(dbCommand2);
grid_all_posts.DataSource = ds;
grid_all_posts.DataBind();
grid_all_posts.Columns[1].Visible = false;
grid_all_posts.Columns[2].Visible = false;