Custom telerik gridview for winforms doesn't bind the data - telerik

Question

Custom control for telerik grid view in winforms
In my Windows forms control library:
for MyGrid.cs (where MyGrid.cs is a component class)
public MyGrid : Telerik.WinControls.UI.RadGridView
I build and i have MyGrid.dll & i have added that in my visual studio toolbox (also referenced that dll in my consuming winform app).
Consuming winform app:
In Form1.cs, i drag and drop that MyGrid & i write this code:
MyGrid1.DataSource=ds.Table[0]; //Dataset
The grid doesn't get bound with records, whereas when i check ds row count it has 150 records. The grid however shows me green and white color (ie. alternating row color), but doesn't bind the data.
This is the code that consuming winform uses
DataSet ds = null;
string connectionString = "Data Source=test;Initial Catalog=DBname;Integrated Security=True";
string sql = " SELECT ID,FirstName from table1 ";
SqlConnection connection = null;
connnection = new SqlConnection(connectionString);
SqlDataAdapter dataadapter = new SqlDataAdapter(sql, connection);
ds= new System.Data.DataSet();
connection.Open();
dataadapter.Fill(ds, "Table1");
MyGrid1.DataSource = ds.Tables[0];
where MyGrid1 is the custom control that is being dragged and dropped from toolbox.
Custom control code:
this.EnableAlternatingRowColor = true;
this.TableElement.AlternatingRowColor = System.Drawing.Color.Green;
this.MasterTemplate.AutoSizeColumnsMode = Telerik.WinControls.UI.GridViewAutoSizeColumnsMode.Fill;
this.AutoGenerateColumns = true;
The telerik grid is not binding the data, however when i click on the cell, it shows me the value. Any thoughts?