Asp. How to dynamically generate template columns in net

///<summary>
 ///implements the ITemplate interface to print
 ///</summary>
 public class Columntemplate:itemplate
 {   
  public void InstantiateIn (Control container)
  {
   LinkButton lb = new LinkButton ();
   lb. Text = "Printing";  
   lb.commandname = "print";
   container. Controls.Add (LB);
 }
 }
 ///<summary>
 ///implements the ITemplate interface, which is used to export
 ///</summary>
 public class Columntemplateexport:itemplate
 {   
  public void InstantiateIn (Control container)
  {
   LinkButton lb = new LinkButton ();
   lb. Text = "exported";  
   lb.commandname = "Export";
   container. Controls.Add (LB);
 }
 }

 ///<summary>
 ///empty grid column
 ///</summary>
 ///<param Name= "VARDG" ></param>
  private static void Refreshgrid (DataGrid vardg)
  {
   Vardg. Columns.clear ();
  
   BoundColumn dc = new BoundColumn ();  
   DC. HeaderText = "ID";
   DC. Headerstyle.horizontalalign = Horizontalalign.center;
   DC. DataField = "ID";
   DC. Visible = false;
   DC. Itemstyle.horizontalalign = horizontalalign.center;  
   vardg. Columns.addat (0,DC);

DC = new BoundColumn ();
dc. HeaderText = "serial number";
dc. Headerstyle.wrap = false;
dc. Headerstyle.width = 30;
dc. Headerstyle.horizontalalign = Horizontalalign.center;
dc. Itemstyle.horizontalalign = Horizontalalign.center;
Vardg. Columns.addat (1,DC);
}

<summary>
Create a grid that is printed by an expert
</summary>
<param name= "VARDG" ></param>
private static void Createexpertdatagrid (DataGrid vardg)
{
Refreshgrid (VARDG);

BoundColumn dc = new BoundColumn ();
dc. HeaderText = "Expert name";
dc. Headerstyle.wrap = false;
dc. Headerstyle.horizontalalign = Horizontalalign.center;
dc. DataField = "Expert_name";
dc. SortExpression = "Expert_name";
dc. Itemstyle.horizontalalign = Horizontalalign.center;
Vardg. Columns.addat (2,DC);

DC = new BoundColumn ();
dc. HeaderText = "Affiliated Hospital";
dc. Headerstyle.wrap = false;
dc. Headerstyle.horizontalalign = Horizontalalign.center;
dc. DataField = "Hospital";
dc. SortExpression = "Hospital";
Vardg. Columns.addat (3,DC);

TemplateColumn TC = new TemplateColumn ();
Tc. ItemTemplate = new Columntemplate ();
Tc. HeaderText = "print";
dc. Headerstyle.wrap = false;
Tc. Headerstyle.horizontalalign = Horizontalalign.center;
Tc. Itemstyle.horizontalalign = Horizontalalign.center;
Tc. Headerstyle.width = 30;
Vardg. Columns.addat (4,TC);

TC = new TemplateColumn ();
Tc. ItemTemplate = new Columntemplateexport ();
Tc. HeaderText = "Export";
dc. Headerstyle.wrap = false;
Tc. Headerstyle.horizontalalign = Horizontalalign.center;
Tc. Itemstyle.horizontalalign = Horizontalalign.center;
Tc. Headerstyle.width = 30;
Vardg. Columns.addat (5,TC);
}