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Let’s come back to ASP.NET tips and trick series. We are once again going to learn new trick related to GridView. Previously I have posted following articles related to GridView. This is answer to “how to print GridView only in ASP.NET?”

• Export GridView data to Excel
• Pagination in GridView
• Export GridView data to Word
• Custom Error Message for Empty GridView
• GridView with scroll bar
• GridView with Fixed Header and Scroll Bar

Requirement – Print GridView only in ASP.NET

Suppose, you have a page where you are displaying any kind of data to user. You want to add a functionality to print these records. But problem with Browsers Default Print options (Ctrl+P) is that, it will print whole page.

All header images, footer, sidebar and colors will printed, which is not required. You have two options, either create a new page for print view and redirect user to that page or just print the required area, in our case it is GridView.

Most of developer working in a web applications have MasterPage for their web-application. MasterPage are similar to templates in normal HTML having some advanced functionality and customized code for maintaining easier and common look of website or application.

Lets have a look at below screen to make our requirement more clear.

Code for Default.aspx

This is the code for GridView.

<asp:GridView runat="server" ID="gvProducts" AutoGenerateColumns="false" AllowPaging="false" AlternatingRowStyle-BackColor="Linen" HeaderStyle-BackColor="SkyBlue" Width="100%" OnPageIndexChanging="gvProducts_PageIndexChanging" EmptyDataText="Sorry! No Products to List. First Add from Add Product Link.">
	<Columns>
		<asp:TemplateField HeaderText="Product ID">
		<ItemTemplate>
		<asp:Label ID="lblProductID" runat="server" Text='<%#Eval("ProductID")%>' ToolTip="ID of Product as stored in Database."></asp:Label>
		</ItemTemplate>
		</asp:TemplateField>
	</Columns>
	<Columns>
		<asp:TemplateField HeaderText="Product Name">
		<ItemTemplate>
		<asp:Label ID="lblProductName" runat="server" ToolTip="Name of Product" Text='<%#Eval("ProductName")%>'></asp:Label>
		</ItemTemplate>
		</asp:TemplateField>
	</Columns>
	<Columns>
		<asp:TemplateField HeaderText="Brand">
		<ItemTemplate>
		<asp:Label ID="lblBrandName" runat="server" ToolTip="Brand of Product" Text='<%#Eval("BrandName")%>'></asp:Label>
		</ItemTemplate>
		</asp:TemplateField>
	</Columns>
	<Columns>
		<asp:TemplateField HeaderText="Category">
		<ItemTemplate>
		<asp:Label ID="lblProductCat" runat="server" ToolTip="Category of Product" Text='<%#Eval("CategoryName")%>'></asp:Label>
		</ItemTemplate>
		</asp:TemplateField>
	</Columns>
	<Columns>
		<asp:TemplateField HeaderText="In Stock">
		<ItemTemplate>
		<asp:Label ID="lblProductinStock" runat="server" ToolTip="Quantity available in Stock"
		Text='<%#Eval("UnitsInStock")%>'></asp:Label>
		</ItemTemplate>
		</asp:TemplateField>
	</Columns>
</asp:GridView>

Code for Default.aspx.cs

We do not have much more at backend, we are just going to bind data to GridView.

protected void Page_Load(object sender, EventArgs e)
	{
		if (!IsPostBack)
		{
			SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConToStore"].ConnectionString);
			SqlDataAdapter adp = new SqlDataAdapter("Select * from Products,Brands,Category where Products.BrandID=Brands.BrandID and Products.CategoryID=Category.CategoryID", con);
			DataSet ds = new DataSet();
			adp.Fill(ds);
			gvProducts.DataSource = ds.Tables[0];
			gvProducts.DataBind();
		}
}

Printing Page.

Let’s press Ctrl+P key combination to print page, before printing see the Preview.

Code to Print GridView Only in ASP.NET

We need to make following change to print GridView only. Let’s start with HTML.

Wrap the GridView inside a Table or Panel. I am using Table. You can also go with Panel.

<table width="70%" id="pnlGridView" runat="server" align="center" class="ContentTable">
<tr>
<td colspan="2" align="center">
<h1>All Products in Store</h1>
</td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td colspan="2">
<asp:GridView runat="server" ID="gvProducts" AutoGenerateColumns="false" AllowPaging="false"
AlternatingRowStyle-BackColor="Linen" HeaderStyle-BackColor="SkyBlue" Width="100%"
OnPageIndexChanging="gvProducts_PageIndexChanging"
EmptyDataText="Sorry! No Products to List. First Add from Add Product Link.">
...............
.............
</asp:GridView>
</td>
</tr>
<tr>
<td align="right">
<asp:LinkButton ID="lnkPrint" runat="server" ToolTip="Click to Print All Records" Text="Print Data" OnClick="lnkPrint_Click"></asp:LinkButton>
<asp:LinkButton ID="lnkExportAll" runat="server" ToolTip="Export this List" Text="Export to Excel" OnClick="lnkExportAll_Click"></asp:LinkButton><asp:LinkButton ID="lnkAddNew" runat="server" ToolTip="Add New Product"
Text="Add New" OnClick="lnkAddNew_Click"></asp:LinkButton>
</td>
</tr>
</table>

Now just add following JavaScript function in head section and assign that function to Print linkbutton. Below JavaScript code will print GridView only in ASP.NET webpage which is inside pnlGridVieW.

<script language="javascript" type="text/javascript">
	function PrintPage() {
	var printContent = document.getElementById('<%= pnlGridView.ClientID %>');
	var printWindow = window.open("All Records", "Print Panel", 'left=50000,top=50000,width=0,height=0');
	printWindow.document.write(printContent.innerHTML);
	printWindow.document.close();
	printWindow.focus();
	printWindow.print();
	}
</script>

Now let’s click on Print Link button which we have created. Following will be output for above code.

Bingo! It was the requirement. As you can see, we can pritn GridView only in ASP.NET. In above preview, we are getting link buttons in Print but you can put link buttons outside of Panel so you can only print GridView data in asp.net webpage.

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