how to filter datagridview from stored procedures from textbox

        protected void Page_Load(object sender, EventArgs e)
    {
 
        if (!IsPostBack)
        {
            //Bring all Data in First load
            Bind();
        }
        else
        {
            if (ViewState["dt"] != null)
            {
                dt = (DataTable)ViewState["dt"];
                GridView1.DataSource = dt;
                GridView1.DataBind();
            }
        }
         
    }
    DataTable dt = new DataTable();
    DataTable search(int id)
    {
        using (
              SqlConnection con =
                  new SqlConnection(ConfigurationManager.ConnectionStrings["testConnectionString"].ConnectionString))
        {
 
            SqlCommand cmd = new SqlCommand("usp_Search_All", con);
 
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("id", id);
            SqlDataAdapter adpt = new SqlDataAdapter(cmd);
            adpt.Fill(dt);
            GridView1.DataSource = dt;
            GridView1.DataBind();
            cmd.Dispose();
            return dt;
 
        }
    }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        GridView1.DataSource =(DataTable)ViewState["dt"];
        GridView1.DataBind();
        
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        dt = search(Convert.ToInt32(TextBox1.Text));
        ViewState.Add("dt", dt);
    }
    void Bind()
    {
        using (
              SqlConnection con =
                  new SqlConnection(ConfigurationManager.ConnectionStrings["testConnectionString"].ConnectionString))
        {
 
            SqlCommand cmd = new SqlCommand("usp_Select_All", con);
            cmd.CommandType = CommandType.StoredProcedure;
            SqlDataAdapter adpt = new SqlDataAdapter(cmd);
            adpt.Fill(dt);
            GridView1.DataSource = dt;
            GridView1.DataBind();
            cmd.Dispose();
    
 
        }
    }

<div>
        
 
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
            onpageindexchanging="GridView1_PageIndexChanging" PageSize="5">
        </asp:GridView>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
&nbsp;
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    </div>