printing problem in asp.net webapplication
i am using following code for print the content of Webapplication -
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;
using System.Web.SessionState;
public class PrintHelper
{
public PrintHelper()
{
}
public static void PrintWebControl(Control ctrl)
{
PrintWebControl(ctrl, string.Empty);
}
public static void PrintWebControl(Control ctrl, string Script)
{
StringWriter stringWrite = new StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new System.Web.UI.HtmlTextWriter(stringWrite);
if (ctrl is WebControl)
{
Unit w = new Unit(100, UnitType.Percentage); ((WebControl)ctrl).Width = w;
}
Page pg = new Page();
pg.EnableEventValidation = false;
if (Script != string.Empty)
{
pg.ClientScript.RegisterStartupScript(pg.GetType(),"PrintJavaScript", Script);
}
HtmlForm frm = new HtmlForm();
pg.Controls.Add(frm);
frm.Attributes.Add("runat", "server");
frm.Controls.Add(ctrl);
pg.DesignerInitialize();
pg.RenderControl(htmlWrite);
string strHTML = stringWrite.ToString();
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Write(strHTML);
HttpContext.Current.Response.Write("<script>window.print();</script>");
HttpContext.Current.Response.End();
}
}
here i pass the textbox control to PrintWebControl() method.
on print button click i write -开发者_开发问答
protected void btnPrint_Click(object sender, EventArgs e)
{
Session["ctrl"] = Panel1;
ClientScript.RegisterStartupScript(this.GetType(), "onclick", "<script language=javascript>window.open('Print.aspx','PrintMe','height=300px,width=300px,scrollbars=1');</script>");
}
now problem is that when i run this application and press on print button then only half of matter of multiline textbox is printed by the printer but rest part not.
so tell me how i print the multiline textbox using above code. Note my multiline textbox has huge data which will print on more than 4 or 5 page.
if you have another code for do it please share with me
thank to all of you in advance
i think u miss some concept here.
HttpContext.Current.Response.Clear();
will clear your response header. and then u call 'HttpContext.Current.Response.Write(...)' which will be read as pure text content not a web page content.
if u want to print only some specific section of web page, use css
<style media="print">
...
</style>
and set page's content like normal asp page. also iframe might help by setting your data to iframe set everything else to display:none(in css media="print") and set iframe to display:block.
edit
in current page
<script type="text/javascript">
function openPopup(){
window.open('Print.aspx','PrintMe','height=300px,width=300px,scrollbars=1');
}
</script>
and in print button in current page(use input type="button")
<input type="button" value="Print" onclick="openPopup()"/>
to call openPopup page. And then in print.aspx create normal aspx page and init values u need. and
**print.aspx
<script>
function print(){
window.print();
}
</script>
...
<body onload="print();">
the process goes like this 1 user click Print button in current page 2 openPopup(); 3 print.aspx being load 4 init all values u need 5 in print.aspx page 'print()' will be triggered when print.aspx is ready.
加载中,请稍侯......
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