Question

I have on Textbox, where I load text from db then edit and save, but when I set TextBox2.Text in BindTextBox, and I finish edit it, it has same value in InsertToDatabase like in BindTexBox method it does not metter i edited it or not.

protected void Page_Load(object sender, EventArgs e)
    {
        BindTextBox
    }


    protected void BindTextBox()
    {
        SqlConnection myConnection = new SqlConnection(Globals.DatabaseConnectionString);
        SqlCommand myCommand = new SqlCommand("dbo.Search", myConnection);
        string message = "";
        myCommand.CommandType = CommandType.StoredProcedure;
        myCommand.Parameters.Add("@ID", SqlDbType.NVarChar, 20).Value = Utility.qID;
        myConnection.Open();
        SqlDataReader reader = myCommand.ExecuteReader();
        while (reader.Read())
        {
            message = reader["Description"].ToString();            
        }
        myConnection.Close();
        TextBox2.Text = message;
    }

    protected void InsertToDatabse()
    {
        string text = TextBox2.Text.ToString();
        SqlConnection myConnection = new SqlConnection(Globals.DatabaseConnectionString);
        SqlCommand myCommand = new SqlCommand("dbo.Insert", myConnection);
        myCommand.CommandType = CommandType.StoredProcedure;
        myCommand.Parameters.Clear();
        myCommand.Parameters.Add("@ID", SqlDbType.NVarChar, 20).Value = Utility.qID;
        myCommand.Parameters.Add("@Description", SqlDbType.NVarChar, 200).Value = text;
        myConnection.Open();
        myCommand.ExecuteNonQuery();
        myConnection.Close();
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        InsertToDatabse();
        BindTextBox();
    }

Answer 1

You should check for if your page is postback

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
      BindTextBox();
}

When you press your save button a postback to server is done and your load method is called again. This causes your textbox value to overridden since you call BindTextBox on both initial load and postbacks.