title: add new column to a GridView DevExpress
body: <p>I am importing a sheet from Excel.
  I need to add a new cell at the end of the grid containing messages about the empty cells where I saved them in an array called msg;</p>
  
  <pre><code>    private void simpleButton1_Click(object sender, System.EventArgs e)
      {
          try
          {
              OleDbConnection con = new OleDbConnection();
              con.ConnectionString = "Provider=Microsoft.Ace.OLEDB.12.0;Data Source=C:\\Users\\pc\\Documents\\Emp.xlsx;Extended Properties=\"Excel 12.0;HDR=Yes\"";
  
              con.Open();
              DataTable dtSchema;
              dtSchema = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
              OleDbCommand Command = new OleDbCommand ("select * FROM [" + dtSchema.Rows[0]["TABLE_NAME"].ToString() + "]", con);
              OleDbDataAdapter da = new OleDbDataAdapter(Command);
              DataSet ds = new DataSet ();
              da.Fill(ds);
              dataGrid1.DataSource = ds.Tables[0];
          }
          catch (Exception ex)
          {
              MessageBox.Show(ex.Message);
          }   
  
          string[] msg = new string[50];
          for (int i = 0; i &lt; gridView3.RowCount ; i++)
          {
              System.Data.DataRow Rows = gridView3.GetDataRow(i);
              string cellvalue = Rows[0].ToString();
              if (cellvalue == "")
              {
                  msg[0] = "Missing 'First Name'";
              }
              cellvalue = Rows[1].ToString();
              if (cellvalue == "")
              {
                  msg[1] = "Missing 'Father Name'";
              }
              cellvalue = Rows[2].ToString();
              if (cellvalue == "")
              {
                  msg[2] = "Missing 'Last Name'";
              }       
          }
  </code></pre>
  
  <p>I am working with XtraGrid Control.. How Can I add this column a the add
  Sorry I'm new to DevExpress
  Thank You..</p>