Gridview uses some records

Now, a project is being developed using ASP. NET 2.0. Some sporadic records about the use of gridview during the development process
1. Binding in templatefield

< ASP: templatefield >
< Itemtemplate > <% #Eval("Ocompany. Name") %> </ Itemtemplate >
</ ASP: templatefield >

2. Get the primary key value of the selected row through the checkbox (gridview supports multiple primary keys) Private   String Getselectid ()
{
// Ensurechildcontrols ();
Gridview gvlist1 = (Gridview) This . Controls [ 0 ]. Findcontrol ( " Gvlist " );

Int Icount = Gvlist1.rows. count;

String ID =   String . Empty;

For ( Int I =   0 ; I < Gvlist1.rows. Count; I ++ )
{
Checkbox CB = (Checkbox) gvlist1.rows [I]. findcontrol ( " Cb_id " );

// Obtain the information of the selected row.
If (Cb. Checked =   True )
{
Datakey DKr=Gvlist1.datakeys [I];

ID=DKr. value. tostring ();
}
}

Return ID;
}

3. dynamically create templatefield Private   Void Templatecolumn (gridview gvlist, String Column, gridlistattribute ATT)
{
Templatefield TF =   New Templatefield ();

TF. headertext = Att. headertext;
TF. headerstyle. Width = Unit. parse (Att. width );

Columntemplate temp =   New Columntemplate ();

Temp. Column = Att. column;

TF. itemtemplate = Temp;

Gvlist. Columns. Add (TF );


}

Columntemplate classPublic   Class Columntemplate: itemplate
{
// First template Column
Public   Void Instantiatein (control container)
{
Literalcontrol L= NewLiteralcontrol ();
L. databinding+ = NewEventhandler (This. Ondatabinding );
Container. Controls. Add (L );
}

Public   Void Ondatabinding ( Object Sender, eventargs E)
{< br>
literalcontrol lt = (literalcontrol) sender; // literalcontrol sends a binding request

gridviewrow container = (gridviewrow) lt. namingcontainer;
lt. text = databinder. eval (container. dataitem, column ). tostring ();
}
}