Css Style在打印时消失 [英] Css Style disappear on print

问题描述

我有一个pannel里面我有一个gridview



i二手静态类打印助手



i用于发送面板作为参数printpreview显示但css样式我应用没有得到



------------------ -PrintHelperClass -------------------------------

i have a pannel inside it i had an gridview

i used static class Print helper

i used to send panel as arguments printpreview is showing but css style i applied not getting

-------------------PrintHelperClass-------------------------------

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;
//using System.Web.HttpContext;
/// <summary>
/// Summary description for PrintHelper
/// </summary>
public class PrintHelper
{
	public PrintHelper()
	{
		
	}

    public static void PrintWebControl(Control ctrl)
    {
        PrintWebControl(ctrl, string.Empty);
    }

    public static void PrintWebControl(Control ctrl, string Script)
    {
        //if (System.Web.HttpContext.Current.(string)Session["isgrid"] == "grid")
        //{
        //    GridView grid = (GridView)ctrl;
        //    grid.AllowPaging = false;
        //    grid.DataBind();
        //}


        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();

    }
}.
-----------------clickevent for print-----------------
protected void btnPrint_Click(object sender, ImageClickEventArgs e)
{
 
    Session["ctrl"] = dgvRegisterReport;
    ScriptManager.RegisterStartupScript(this, this.GetType(), "onclick", "javascript:window.open( 'http://localhost:57601/PolosysWebERP5.2_1/GeneralPages/Print.aspx','PrintMe','height=300px,width=300px,scrollbars=1');", true);
}
-------------------------------
for grid i given style but while printing the style is not getting 
i used @media print also then also not getting.

推荐答案

我解决了我的问题

i solved my problem

protected void btnPrint_Click(object sender, ImageClickEventArgs e)
{
   
    Session["GridView"] = dgvRegisterReport;
    Session["ctrl"] = pnlContents;
    ScriptManager.RegisterStartupScript(this, this.GetType(), "onclick", "javascript:window.open( 'http://localhost:57601/PolosysWebERP5.2_1/GeneralPages/Print.aspx','PrintMe','height=600px,width=600px,scrollbars=1');", true);
}

on print.aspx page

 protected void Page_Load(object sender, EventArgs e)
    {

        Control ctrl = (Control)Session["ctrl"];
        GridView GridView1 = (GridView)Session["GridView"];
        
        PrintHelper.PrintWebControl(ctrl,string.Empty,GridView1);

        

       
    }

class file : 

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;
//using System.Web.HttpContext;
/// <summary>
/// Summary description for PrintHelper
/// </summary>
public class PrintHelper
{
	public PrintHelper()
	{
		
	}

    //public static void PrintWebControl(Control ctrl)
    //{
    //    PrintWebControl(ctrl, string.Empty,GridView salesgridview);
    //}

    public static void PrintWebControl(Control ctrl, string Script, GridView SalesGridView)
    {
        //if (System.Web.HttpContext.Current.(string)Session["isgrid"] == "grid")
        //{
        //    GridView grid = (GridView)ctrl;
        //    grid.AllowPaging = false;
        //    grid.DataBind();
        //}
        
        SalesGridView.UseAccessibleHeader = true;
        SalesGridView.HeaderRow.TableSection = TableRowSection.TableHeader;
        SalesGridView.FooterRow.TableSection = TableRowSection.TableFooter;
        SalesGridView.Attributes["style"] = "border-collapse:separate";
        foreach (GridViewRow row in SalesGridView.Rows)
        {
            if (row.RowIndex % 30 == 0 && row.RowIndex != 0)
            {
                row.Attributes["style"] = "page-break-after:always;";
            }
        }

        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>");
        string style = "<style type="text/css">td { padding: 4px; border: solid 1px #c1c1c1; color: #474545; font-family:Arial; font-size:12px } th { padding: 2px 2px; color: #3e4d9e; background: #e0d7f4 ; font-family:Arial; text-align:left;text-indent:10px; font-size:14px ;border-top: solid 1px #a99cec; border-left:none;border-right:none; border-bottom:none }{ width: 100%;background-color: #fff; margin: 5px 0 10px 0; border-top: solid 1px #a99cec; border-left:solid 1px #a99cec;border-right:solid 1px #a99cec;font-family:Arial; font-size:15px; </style>";
 
        HttpContext.Current.Response.Write(style);
        HttpContext.Current.Response.End();
    }
}

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