Is it possible to put updatepanel in a control that will be used in GridView ItemTemplate?

hello.

well, you can bind in a previous event of the page. for isntance. i've built a small page that shows the kind of problem you're gonna face with this approach:

public struct A
{
private string nome;

public string Nome
{
get { return nome; }
set { nome = value; }
}
private string morada;

public string Morada
{
get { return morada; }
set { morada = value; }
}

public A(string n, string m)
{
nome = n;
morada = m;
}
}

public void Bind()
{
A[] a= new A[]{
new A( "1", "1" ),
new A( "2", "2" ),
new A( "3", "3" )
};

grid.DataSource = a;
grid.DataBind();
}

protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);

}

protected override void OnInit(EventArgs e)
{
base.OnInit(e);

Bind();
}

void T(object sender, EventArgs Args)
{
info.Text = ((TextBox)sender).Text;
}

string Handle(A a)
{
return a.Nome;
}

Untitled Page

value=''
AutoPostBack="true"
OnTextChanged="T"/>

when you run the page you'll see that the label allways presents the text of the last row...