private void showPos_ProductTypeData()
    {
        Pos_ProductType pos_ProductType = new Pos_ProductType();

        pos_ProductType = Pos_ProductTypeManager.GetPos_ProductTypeByID(Int32.Parse(Request.QueryString["pos_ProductTypeID"]));

        txtProductTypeName.Text = pos_ProductType.ProductTypeName;
    }
    protected void btnUpdate_Click(object sender, EventArgs e)
    {
        Pos_ProductType pos_ProductType = new Pos_ProductType();

        pos_ProductType = Pos_ProductTypeManager.GetPos_ProductTypeByID(Int32.Parse(Request.QueryString["pos_ProductTypeID"]));
        Pos_ProductType tempPos_ProductType = new Pos_ProductType();

        tempPos_ProductType.Pos_ProductTypeID = pos_ProductType.Pos_ProductTypeID;

        tempPos_ProductType.ProductTypeName = txtProductTypeName.Text;
        bool result = Pos_ProductTypeManager.UpdatePos_ProductType(tempPos_ProductType);

        Response.Redirect("AdminPos_ProductTypeDisplay.aspx");
    }