Question

I have a LinkButton in aspx page.

<asp:TextBox ID="textBoxNote" runat="server" />
    <asp:LinkButton ID="linkButtonUpdateNote" Text="Update" OnClick="ButtonUpdateNoteClicked" runat="server" />  

the click event handler has the following code

 protected void ButtonUpdateNoteClicked(object sender, EventArgs e)
        {
            var note = textBoxNote.Text;
        }

On Postback textBoxNote.Text is empty. I don’t get the posted value. How to get the value?

Answer 1

It seems like you are possibly resetting the value in your Page_Load.

Check that you are using IsPostback check in the Page_Load function. see – http://msdn.microsoft.com/en-us/library/system.web.ui.page.ispostback.aspx

private void Page_Load()
{
    if (!IsPostBack)
    {
        DoThisOnce();
    }

    DoThisOnEachPostback();
}