Custom Pagination In GridView With Formatting Using ASP.NET

Introduction

• Here, I will explain how to use custom pagination in GridView with formatting, using ASP.NET.
• Follow the steps mentioned below to achieve our requirement.

Step 1

Follow the code, mentioned below, to achieve the result Default.aspx.

<asp:GridView ID="CustomGrid" runat="server" EnableModelValidation="True" AutoGenerateColumns="False" AllowPaging="True" BackColor="White" BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px" CellPadding="4″ ForeColor=" Black " GridLines="Vertical "
   EmptyDataText="No record found. " PageSize="2″>
    <AlternatingRowStyle BackColor="White" />
    <Columns>

        <asp:TemplateField HeaderText="UserID">
            <ItemTemplate>
                <asp:Label ID="lblUser" runat="server" Text=’<%# Eval( "ID") %>’></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="NAME" HeaderText="Name">
        </asp:BoundField>
        <asp:BoundField DataField="PRICE" HeaderText="Price">
        </asp:BoundField>
    </Columns>
    <FooterStyle BackColor="#CCCC99″ />
<HeaderStyle BackColor=" #6B696B " Font-Bold="True " ForeColor="White " />
<PagerSettings FirstPageText="First " LastPageText="Last " NextPageText="Next " Position="TopAndBottom "
PreviousPageText="Prev " />
<PagerStyle BackColor="#F7F7DE " ForeColor="Black " HorizontalAlign="Right " />
<PagerTemplate>
<div>
<span style="float: right; ">
<asp:ImageButton ID="ImageButtonNext " runat="server " ImageUrl="~/images/r-arrow.png "
OnClick="ImageButtonNext_Click " />
</span><span style="float: right; padding-left: 5px; padding-right: 5px; ">
<asp:Label ID="LabelCurrentIndex " runat="server " Text=’<%= CurrentSelectedIndex %>’></asp:Label>
Of
<asp:Label ID="LabelLastIndex " runat="server " Text=’<%= TotalPageCount %>’></asp:Label>
</span><span style="float: right; ">
<asp:ImageButton ID="ImageButtonPrev " runat="server " ImageUrl="~/images/l-arrow.png "
OnClick="ImageButtonPrev_Click " />
</span>
</div>
</PagerTemplate>
   <RowStyle BackColor="#F7F7DE " />
   <SelectedRowStyle BackColor="#CE5D5A " Font-Bold="True " ForeColor="White " />
   </asp:GridView>
<input type="hidden " id="GridActiveIndex " value="0″ runat="server" />

Step 2

Add the code, mentioned below, to Default.aspx.cs.

public string currentSelectedIndex = string.Empty;
public string totalPageCount = string.Empty;
public string UserEmail = string.Empty;
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        LoadData();
        int currentIndex = Convert.ToInt32(Convert.ToString(GridActiveIndex.Value));
        if (currentIndex > 0)
        {
            CustomGrid.PageIndex = currentIndex;
        }

    }

}

private void LoadData()
{
    DataTable dt = new DataTable();
    dt = getResultTable();
    CustomGrid.DataSource = dt;
    CustomGrid.DataBind();
    GridActiveIndex.Value = '0″;
    FotmatPager(0);
}

DataTable getResultTable()
{
    DataTable dtproduct = new DataTable();
    dtproduct.Columns.Add('ID', typeof(int));
    dtproduct.Columns.Add('NAME', typeof(string));
    dtproduct.Columns.Add('PRICE', typeof(int));

    // Here we add five DataRows.
    dtproduct.Rows.Add(1, 'Product1″, 100);
    dtproduct.Rows.Add(2, 'Product2″, 110);
    dtproduct.Rows.Add(3, 'Product3″, 120);
    dtproduct.Rows.Add(4, 'Product4″, 130);
    dtproduct.Rows.Add(5, 'Product5″, 140);

    return dtproduct;
}
#region GridVariable

GridViewRow pagerRow;
int current_index;
int page_count;

#endregion
public string CurrentSelectedIndex
{
    get { return currentSelectedIndex; }
    set { currentSelectedIndex = value; }
}
public string TotalPageCount
{
    get { return totalPageCount; }
    set { totalPageCount = value; }
}
protected void formatTopPager(int current, int total)
{
    try
    {
        pagerRow = CustomGrid.TopPagerRow;
        Label lblcurrentindex =
        (Label)pagerRow.Cells[0].FindControl('LabelCurrentIndex');
        lblcurrentindex.Text = current.ToString();
        Label lbllastindex =
        (Label)pagerRow.Cells[0].FindControl('LabelLastIndex');
        lbllastindex.Text = total.ToString();
        CurrentSelectedIndex = current.ToString();
        TotalPageCount = total.ToString();
    }
    catch (Exception)
    {

    //throw;
    }
}
protected void fotmatBottomPager(int current, int total)
{
    try
    {
        pagerRow = CustomGrid.BottomPagerRow;
        Label lblcurrentindex =
        (Label)pagerRow.Cells[0].FindControl('LabelCurrentIndex');
        lblcurrentindex.Text = current.ToString();
        Label lbllastindex =
        (Label)pagerRow.Cells[0].FindControl('LabelLastIndex');
        lbllastindex.Text = total.ToString();
        CurrentSelectedIndex = current.ToString();
        TotalPageCount = total.ToString();
    }
    catch (Exception)
    {

    // throw;
    }

}

protected void FotmatPager(int current)
{
    ViewState["currentPageIndex"] = current;
    current += 1;

    int total = CustomGrid.PageCount;
    formatTopPager(current, total);
    fotmatBottomPager(current, total);
    CustomGrid.PageIndex = Convert.ToInt32(Convert.ToString(ViewState["currentPageIndex"]));

}

protected void ManageGridLayout(DataTable dt, int selected_pageIndex, int totalPage)
{

    CustomGrid.PageIndex = selected_pageIndex;
    CustomGrid.DataSource = getResultTable();
    CustomGrid.DataBind();
    FotmatPager(selected_pageIndex);

}

protected void ImageButtonNext_Click(object sender, ImageClickEventArgs e)
{
    current_index = CustomGrid.PageIndex;
    page_count = CustomGrid.PageCount;
    if (current_index + 1 < page_count)
    ManageGridLayout(getResultTable(), current_index + 1, page_count);
}

protected void ImageButtonPrev_Click(object sender, ImageClickEventArgs e)
{
    current_index = CustomGrid.PageIndex;
    page_count = CustomGrid.PageCount;
    if (current_index > 0)
    ManageGridLayout(getResultTable(), current_index – 1, page_count);

}

Output