Is there a way for my web application to automatically print a popup page without prompting the client to choose a printer?
I am looking for guidance on implementing silent printing in ASP.Net using java-script or ajax, or any other suitable solution for this scenario. Can you provide recommendations or examples?
There are legitimate reasons why users cannot default to a specific printer:
Users need the freedom to select their preferred printer for printing.
Users should have the option to decide whether or not to print, preventing unwanted material from being constantly printed.
You can find third party controls that are compatible with WPF for this task. It may be worth exploring whether they can also be used in an asp.net environment.
//PrintPage.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing.Printing;
using System.IO;
using System.Drawing;
namespace PrintManagement
{
public partial class PrintPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
}
}
private void printDocument2_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
Graphics g = e.Graphics;
SolidBrush Brush = new SolidBrush(Color.Blue);
string textToPrint = TextBox2.Text;
g.DrawString(textToPrint, new Font("verdana", 14), Brush, 10, 10);
}
protected void PrintButton_Click(object sender, EventArgs e)
{
try
{
string currentTime = DateTime.Now.ToString("yyyyMMddHHmm");
System.Drawing.Printing.PrinterSettings printerSettings = new System.Drawing.Printing.PrinterSettings();
printerSettings.PrintToFile = true;
// ps.PrintFileName = "D:\\PRINT\\Print_"+Time+".oxps"; /* you can save file here */
System.Drawing.Printing.PrintDocument printDoc = new System.Drawing.Printing.PrintDocument();
printDoc.PrintPage += new PrintPageEventHandler(printDocument2_PrintPage);
System.Drawing.Printing.StandardPrintController standardPrintControl = new System.Drawing.Printing.StandardPrintController();
printDoc.PrintController = standardPrintControl;
printDoc.DefaultPageSettings.Landscape = true;
printDoc.PrinterSettings = printerSettings;
printDoc.Print();
TextBox2.Text = "";
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Printed Successfully.Check: Drive D')", true);
}
catch (Exception ex)
{
}
}
protected void RefreshButton_Click(object sender, EventArgs e)
{
Response.Redirect("PrintPage.aspx");
}
}
}
//PrintPage.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="PrintPage.aspx.cs" Inherits="PrintManagement.PrintPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<asp:TextBox ID="TextBox2" runat="server" Width="240px" Height="120px"
TextMode="MultiLine"></asp:TextBox>
<br />
<br />
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ControlToValidate="TextBox2" ErrorMessage="Empty message cannot be printed!"
ValidationGroup="vgp1"></asp:RequiredFieldValidator>
<br />
<br />
<asp:Button ID="PrintButton" runat="server" Text="Print" onclick="PrintButton_Click"
ValidationGroup="vgp1" />
<asp:Button ID="RefreshButton" runat="server" onclick="RefreshButton_Click" Text="Refresh"
ValidationGroup="vgp2" />
</form>
</body>
</html>
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