Pagin count in Gridview asp.net

hi,
here an example i use "ProductInfo" class for GridView DataSource, "dtgView" my GridView and "lblPageInfo Label for display page information. You need to GridView AllowPaging="True" and generate OnPageIndexChanging="dtgView_PageIndexChanging" Event for paging your GridView.

then need to Bind GridView on page load code below:

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                List<productinfo> list = new ProductInfo().SelectAll4Grid();
                // Collection of Product.
                dtgView.DataSource = list; 
                dtgView.DataBind();
                lblPageInfo.Text = "you are viewing page 1 of " + dtgView.PageCount.ToString();
                // Display Page Information.
            }
        }
</productinfo>

then you need to Bind GridView on page index changing event and collect your page information code below:

protected void dtgView_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            List<productinfo> list = new ProductInfo().SelectAll4Grid();
            dtgView.PageIndex = e.NewPageIndex;
            lblPageInfo.Text = "you are viewing page " + (e.NewPageIndex + 1).ToString() + " of " + dtgView.PageCount.ToString();
            // Page Index Start from 0 so we need +1
            dtgView.DataSource = list;
            dtgView.DataBind();
        }
</productinfo>

it's working on my project. try use it.