Skip to main content

Print ASP.Net GridView with page breaks and repeat header on each page


GridView Markup
I have a simple ASP.Net GridView with a button to print the GridView contents as shown below
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" Font-Names="Arial"
    Font-Size="11pt" AlternatingRowStyle-BackColor="#C2D69B" HeaderStyle-BackColor="green"
    AllowPaging="false">
    <Columns>
        <asp:BoundField ItemStyle-Width="150px" DataField="CustomerID" HeaderText="CustomerID" />
        <asp:BoundField ItemStyle-Width="150px" DataField="City" HeaderText="City" />
        <asp:BoundField ItemStyle-Width="150px" DataField="PostalCode" HeaderText="PostalCode" />
    </Columns>
</asp:GridView>
<br />
<asp:Button ID="btnPrint" runat="server" Text="Print" OnClick="Print" />
 
 
Printing the GridView with Page breaks and Header on each page
On the click of the print button I have the following event handler which prints the ASP.Net GridView control
C#
protected void Print(object sender, EventArgs e)
{
    GridView1.UseAccessibleHeader = true;
    GridView1.HeaderRow.TableSection = TableRowSection.TableHeader;
    GridView1.FooterRow.TableSection = TableRowSection.TableFooter;
    GridView1.Attributes["style"] = "border-collapse:separate";
    foreach (GridViewRow row in GridView1.Rows)
    {
        if (row.RowIndex % 10 == 0 && row.RowIndex != 0)
        {
            row.Attributes["style"] = "page-break-after:always;";
        }
    }
    StringWriter sw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(sw);
    GridView1.RenderControl(hw);
    string gridHTML = sw.ToString().Replace("\"", "'").Replace(System.Environment.NewLine, "");
    StringBuilder sb = new StringBuilder();
    sb.Append("<script type = 'text/javascript'>");
    sb.Append("window.onload = new function(){");
    sb.Append("var printWin = window.open('', '', 'left=0");
    sb.Append(",top=0,width=1000,height=600,status=0');");
    sb.Append("printWin.document.write(\"");
    string style = "<style type = 'text/css'>thead {display:table-header-group;} tfoot{display:table-footer-group;}</style>";
    sb.Append(style + gridHTML);
    sb.Append("\");");
    sb.Append("printWin.document.close();");
    sb.Append("printWin.focus();");
    sb.Append("printWin.print();");
    sb.Append("printWin.close();");
    sb.Append("};");
    sb.Append("</script>");
    ClientScript.RegisterStartupScript(this.GetType(), "GridPrint", sb.ToString());
    GridView1.DataBind();
}
 
VB.Net
Protected Sub Print(sender As Object, e As EventArgs)
    GridView1.UseAccessibleHeader = True
    GridView1.HeaderRow.TableSection = TableRowSection.TableHeader
    GridView1.FooterRow.TableSection = TableRowSection.TableFooter
    GridView1.Attributes("style") = "border-collapse:separate"
    For Each row As GridViewRow In GridView1.Rows
        If row.RowIndex Mod 10 = 0 AndAlso row.RowIndex <> 0 Then
            row.Attributes("style") = "page-break-after:always;"
        End If
    Next
    Dim sw As New StringWriter()
    Dim hw As New HtmlTextWriter(sw)
    GridView1.RenderControl(hw)
    Dim gridHTML As String = sw.ToString().Replace("""", "'").Replace(System.Environment.NewLine, "")
    Dim sb As New StringBuilder()
    sb.Append("<script type = 'text/javascript'>")
    sb.Append("window.onload = new function(){")
    sb.Append("var printWin = window.open('', '', 'left=0")
    sb.Append(",top=0,width=1000,height=600,status=0');")
    sb.Append("printWin.document.write(""")
    Dim style As String = "<style type = 'text/css'>thead {display:table-header-group;} tfoot{display:table-footer-group;}</style>"
    sb.Append(style & gridHTML)
    sb.Append(""");")
    sb.Append("printWin.document.close();")
    sb.Append("printWin.focus();")
    sb.Append("printWin.print();")
    sb.Append("printWin.close();")
    sb.Append("};")
    sb.Append("</script>")
    ClientScript.RegisterStartupScript(Me.[GetType](), "GridPrint", sb.ToString())
    GridView1.DataBind()
End Sub
 
Above you will notice before printing I am looping and adding style page-break-after:always to every 10th GridView row, this makes the page to break after 10th row. You can change this to some other number as per your needs.
You will need to also add the following event to avoid event validation errors
C#
public override void VerifyRenderingInServerForm(Control control)
{
    /*Verifies that the control is rendered */
}
 
VB.Net
Public Overrides Sub VerifyRenderingInServerForm(control As Control)
   'Verifies that the control is rendered
End Sub
 
 
Demo
 
Downloads
You can download the complete source code in C# and VB.Net using the download link provided below
 

Comments

Post a Comment

Popular posts from this blog

GRIDVIEW GROUPING

When displaying data, we sometimes would like to group data for better user experience or when displaying long list of hierarchal data, we would want to display them in a tree view kind of structure. There is more than way of doing this, but I am going to explain achieving this functionality using  AJAX Collapsible Panel Extender Control . Overview: I am going to use  Adventure Works  as datasource. Every product in  Production.Product  table belongs to a product sub category. We fetch handful of products and the sub categories they belong to from the database. Our objective is to list all the available sub categories and allow user to  expand/collapse  to look/hide the list of products belonging to each subcategory. Database Connection Added following entry under  connectionStrings  element in  web.config . < add   name = "Sql"   connectionString="Data Source=(local); Initial  Catalog = AdventureWorks ...
Post a Comment
Read more

GRIDVIEW ZOOM IMAGE

When you have images in your  GridView , you would most likely show them as thumbnails so as to not distort the whole layout. However user would want to look at the full image by clicking on the image or just hovering his mouse over it. In today’s applications, this is a basic requirement and there are just so many third party controls or plugins which would support this functionality. I am going do this conventional way using  javascript  way in this article.  On top of it, I am also going to explain how to get images from database using  HttpHandlers . Example: I am using  Adventure Works  as datasource. We fetch handful of products and bind them to the grid. When page is initially loaded, we retrieve products from Production . Product  table and bind them to the grid. We display some product attributes such as Product ID, Product Number, Product Name, List Price and product’s thumbnail. When user hover his mouse on the page, we fetch the f...
Post a Comment
Read more

Editing Child GridView in Nested GridView

Editing Child GridView in Nested GridView In this article we will explore how to edit child gridview in the nested gridview.   Let''s write some code. Step 1:  Add scriptmanager in the aspx page. < asp : ScriptManager   ID ="ScriptManager1"   runat ="server"   EnablePageMethods ="true"> </ asp : ScriptManager > Step 2:  Add below stylesheet for modal popup. < style   type ="text/css">        .modalBackground        {              background-color : Gray;              filter : alpha(opacity=80);              opacity : 0.5;       }        .ModalWindow        {     ...
Post a Comment
Read more