Question

I have over 30 aspx pages, i have discovered a problem recently that if i did any kind of database transaction like insert, update, delete and then after the transaction is complete i pressed F5 or refreshed the page in anyway the same is transaction occur.

I searched for a solution but all i could found is that i have to check for viewstate on each button which is impossible, cause that means there will be a lot of work. There got to be generic solution, please help me in this problem.

Edit:

Here is the code on one of the buttons which change a value in data base to either true or false:

 protected void btn_Publish_Click(object sender, EventArgs e)
{

    if (Convert.ToBoolean(int.Parse(hf_Published.Value.ToString())))
    {
        publish(false);
    }
    else
    {
        publish(true);

    }

}

After the execution of the code if refreshed the page the same code is executed, i noticed that since a break point was placed on this method.

Answer 1

You can try this. I used this in several project and working successfully.

 public bool IsRefreshed
    {
        get
        {
            if (Convert.ToString(Session["RefreshTimeStamp"]) == Convert.ToString(ViewState["RefreshTimeStamp"]))
            {
                Session["RefreshTimeStamp"] = HttpContext.Current.Server.UrlDecode(System.DateTime.Now.ToString());
                return false;
            }
            else
            {
                return true;
            }
        }
    }




protected override void OnPreRender(EventArgs e)
    {
        base.OnPreRender(e);
        ViewState["RefreshTimeStamp"] = Session["RefreshTimeStamp"];
    }



protected override void OnLoad(EventArgs e)
    {  

        if (!Page.IsPostBack)
        {
            Session["RefreshTimeStamp"] = HttpContext.Current.Server.UrlDecode(System.DateTime.Now.ToString());
        }
        base.OnLoad(e);
    }