Bind text box to value - asp.net

Question

How to bind to textbox and retrieve modified value on button click.
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Sku objSku = new Sku();
objSku.Name = "Test";
Sku = objSku;
frm.DataSource = Sku;
frm.DataBind();
}
if (IsPostBack)
{
Sku = ViewState["Sku"] as Sku;
}
}
public Sku Sku { get; set; }
protected void Button1_Click(object sender, EventArgs e)
{
//Hers sku.Name should be equal to the value entered by the user . so that I can save the object.
}
}
[Serializable]
public class Sku
{
public string Name { get; set; }
}
Html code
<form id="form1" runat="server">
<div>
<asp:FormView runat="server" ID="frm" >
<ItemTemplate>
</ItemTemplate>
</asp:FormView>
<asp:TextBox ID="TextBox1" Text='<%# Bind("Name") %>' runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
</div>
</form>

Answer 1

You have direct access to your textbox as it's not in the FormView so:
String val= Textbox1.Text;
Textbox1.Text="what ever you are binding?"
I think you may need to be a little clear in your question as I don't understand what you are trying to do?

Answer 2

It looks like you're already binding to the field for displaying data. Is this not working? Within your button click event handler, you can retrieve the current value from TextBox1.Text.

Answer 3

If you want to update your view on postback you need to update the bindings.
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Sku objSku = new Sku();
objSku.Name = "Test";
Sku = objSku;
}
if (IsPostBack)
{
Sku = ViewState["Sku"] as Sku;
}
frm.DataSource = Sku;
frm.DataBind();
}