itextsharp pdf中的gridview列宽WORKING需要样式
本文关键字:样式 WORKING 列宽 pdf 中的 gridview itextsharp | 更新日期: 2023-09-27 18:29:38
这正在使用itextsharp在新窗口中打开pdf中的正确信息。但是第一列太宽,第二列、第三列和第四列太小。我该如何设计这个?
<form id="f1">
<asp:ImageButton BorderStyle="0" CssClass="submitbutton" runat="server" AlternateText="Get PDF" ID="LinkButton1" OnClick="btnGenerateReport" />
<asp:GridView BackColor="#FFFFFF" ID="gvEventCaf" runat="server" >
</asp:GridView>
</form>
以下是get-pdfonclick:的代码索引
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.Security;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
using System.IO;
protected void btnGenerateReport(object sender, EventArgs e)
{
MyPage tmpPage = new MyPage();
HtmlForm form = new HtmlForm();
form.Controls.Add(gvEventCaf);
tmpPage.Controls.Add(form);
StringWriter sw = new StringWriter();
HtmlTextWriter htmlWriter = new HtmlTextWriter(sw);
form.Controls[0].RenderControl(htmlWriter);
string htmlContent = sw.ToString();
Document document = new Document();
// step 2:
// we create a writer that listens to the document
// and directs a PDF-stream to a file
PdfWriter.GetInstance(document, new FileStream("c:''users''My''Downloads''Calendar.pdf", FileMode.Create));
// step 3: we open the document
document.Open();
// step 4: we add a paragraph to the document
//document.Add(new Paragraph(htmlContent.ToString()));
System.Xml.XmlTextReader _xmlr = new System.Xml.XmlTextReader(new StringReader(htmlContent));
HtmlParser.Parse(document, _xmlr);
// step 5: we close the document
document.Close();
ShowPdf("c:''users''Me''Downloads''Calendar.pdf");
}
这是我看到的pdf文件:
private void ShowPdf(string s)
{
Response.ClearContent();
Response.ClearHeaders();
Response.AddHeader("Content-Disposition", "inline;filename=" + s);
Response.ContentType = "application/pdf";
Response.WriteFile(s);
Response.Flush();
Response.Clear();
}
这是我放在App_Code:中的Mypage.cs帮助文件
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;
/// <summary>
/// Summary description for MyPage
/// </summary>
public class MyPage : Page
{
public override void VerifyRenderingInServerForm(Control control)
{
GridView grid = control as GridView;
if (grid != null && grid.ID == "gvEventCaf")
return;
else
base.VerifyRenderingInServerForm(control);
}
}
以下是对我有效的方法。我必须制作一个与事件列表相同但不同的所有事件的网格视图,我对网格视图进行了样式设置,使其远离了没有人能看到的网站页面。
在对象eventlist.ascx:的公共端
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="EventList.ascx.cs" Inherits="Objects_EventList" %>
<asp:ListView runat="server" ID="lstvwEvents" OnItemDataBound="lstvwEvents_OnItemDataBound">
<LayoutTemplate>
<div class="eventtease" style="width: 249px;border-bottom: 1px solid #c0c06b;padding-right: 10px;padding-top: 10px;height: 300px;overflow: auto;">
<asp:Literal runat="server" ID="itemPlaceholder" />
<div style="clear: both;"></div>
</div>
</LayoutTemplate>
<ItemTemplate>
<h3 style="clear: both;border-top: 1px solid #c0c06b;padding-top: 10px;"><asp:Literal runat="server" ID="ltrlShortDate" /><br /><%# Eval("EventName").ToString().ToUpper() %><br />(<asp:Literal runat="server" ID="ltrlTimes" />)</h3>
<p class="eventdescription" style="font: normal normal normal 7.5pt/normal Arial, Sans-Serif;margin-top: 3px;">
<%# Eval("Description") %>
</p>
<asp:HyperLink runat="server" ID="lnkLearnMore" Text="LEARN MORE" CssClass="learnmore" Visible="false" />
</ItemTemplate>
</asp:ListView>
<form id="f1">
<div>
<asp:GridView ID="gvEventCaf" runat="server"
AutoGenerateColumns= "false" Font-Names= "Arial" AllowPaging="true"
OnPageIndexChanging= "OnPaging" CssClass="offframe" >
<Columns>
<asp:BoundField ItemStyle-Width = "50px" ItemStyle-Font-Size ="10px" DataField = "EventName" HeaderText = "Event Name" />
<asp:BoundField ItemStyle-Width = "50px" ItemStyle-Font-Size ="10px" DataField = "EventTime" HeaderText = "Event Time"/>
<asp:BoundField ItemStyle-Width = "50px" ItemStyle-Font-Size ="10px" DataField = "EventDate" HeaderText = "Event Date"/>
<asp:BoundField ItemStyle-Width = "100px" ItemStyle-Font-Size ="10px" DataField = "Description" HeaderText = "Description"/>
</Columns>
</asp:GridView>
</div>
<asp:Button ID="btnExportPDF" runat="server" Text="Download PDF" OnClick="btnExportPDF_Click" />
</form>
在后面的代码中,eventlist.ascx.cs:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.Security;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
using System.IO;
public partial class Objects_EventList : System.Web.UI.UserControl
{
public string city;
public int showcount;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Load_Events();
};
}
protected void Load_Events()
{
EventsDataContext edc = new EventsDataContext();
var events = (from e in edc.tblEvents_Cafes
where e.EventDateTime >= DateTime.Now && e.VenueCity.Trim() == city.Trim() && (e.VenueName.Contains("Café") || e.VenueName.Contains("Cafe") )
orderby e.EventDateTime
select new {
EventName = e.EventName,
EventDate = e.EventDate,
EventTime = e.EventTime,
Description = edc.tblEvents_Cafe_Descriptions.OrderBy(d => d.Priority).Where(d => d.Keywords.ToLower() == e.EventName.ToLower()).Select(d => d.Description).First(), // edc.tblEvents_Cafe_Descriptions.OrderBy(d => d.Priority).Where(d => d.Keywords.ToLower() == e.EventName.ToLower() || d.Keywords.ToLower().CompareTo(e.EventName.ToLower()) >= 0).Select(d => d.Description).First()
}).Take(showcount);
lstvwEvents.DataSource = events;
lstvwEvents.DataBind();
}
protected void lstvwEvents_OnItemDataBound(Object sender, ListViewItemEventArgs e)
{
ListViewDataItem dataItem = (ListViewDataItem)e.Item;
if (e.Item.ItemType == ListViewItemType.DataItem)
{
var tempevent = dataItem.DataItem;
Type t = tempevent.GetType();
DateTime tempdate;
if (DateTime.TryParse((t.GetProperty("EventDate").GetValue(tempevent, null)).ToString(), out tempdate))
{
Literal ltrlShortDate = new Literal();
ltrlShortDate = (Literal)e.Item.FindControl("ltrlShortDate");
ltrlShortDate.Text = tempdate.ToString("MM/dd/yyyy");
}
if (DateTime.TryParse((t.GetProperty("EventTime").GetValue(tempevent, null)).ToString(), out tempdate))
{
Literal ltrlTimes = new Literal();
ltrlTimes = (Literal)e.Item.FindControl("ltrlTimes");
ltrlTimes.Text = tempdate.ToString("hh:mm tt");
}
}
}
//Begin gridview for pdf
protected void btnExportPDF_Click(object sender, EventArgs e)
{
gvEventCaf.AllowPaging = Convert.ToBoolean(rbPaging.SelectedItem.Value);
EventsDataContext edc = new EventsDataContext();
var events = (from f in edc.tblEvents_Cafes
where f.EventDateTime >= DateTime.Now && f.VenueCity.Trim() == city.Trim() && (f.VenueName.Contains("Café") || f.VenueName.Contains("Cafe"))
orderby f.EventDateTime
select new
{
EventName = f.EventName,
EventDate = f.EventDate,
EventTime = f.EventTime,
VenueName = f.VenueName,
Description = edc.tblEvents_Cafe_Descriptions.OrderBy(d => d.Priority).Where(d => d.Keywords.ToLower() == f.EventName.ToLower()).Select(d => d.Description).First(), // edc.tblEvents_Cafe_Descriptions.OrderBy(d => d.Priority).Where(d => d.Keywords.ToLower() == e.EventName.ToLower() || d.Keywords.ToLower().CompareTo(e.EventName.ToLower()) >= 0).Select(d => d.Description).First()
}).Take(showcount);
gvEventCaf.DataSource = events;
gvEventCaf.DataBind();
//Create a table
iTextSharp.text.Table table = new iTextSharp.text.Table(gvEventCaf.Columns.Count);
table.Cellpadding = 5;
//Set the column widths
int[] widths = new int[gvEventCaf.Columns.Count];
for (int x = 0; x < gvEventCaf.Columns.Count; x++)
{
widths[x] = (int)gvEventCaf.Columns[x].ItemStyle.Width.Value;
string cellText = Server.HtmlDecode(gvEventCaf.HeaderRow.Cells[x].Text);
iTextSharp.text.Cell cell = new iTextSharp.text.Cell(cellText);
cell.BackgroundColor = new Color(System.Drawing.ColorTranslator.FromHtml("#25925c"));
table.AddCell(cell);
}
table.SetWidths(widths);
//Transfer rows from GridView to table
for (int i = 0; i < gvEventCaf.Rows.Count; i++)
{
if (gvEventCaf.Rows[i].RowType == DataControlRowType.DataRow)
{
for (int j = 0; j < gvEventCaf.Columns.Count; j++)
{
string cellText = Server.HtmlDecode(gvEventCaf.Rows[i].Cells[j].Text);
iTextSharp.text.Cell cell = new iTextSharp.text.Cell(cellText);
//Set Color of Alternating row
if (i % 2 != 0)
{
cell.BackgroundColor = new Color(System.Drawing.ColorTranslator.FromHtml("#C2D69B"));
}
table.AddCell(cell);
}
}
}
//Create the PDF Document
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
Paragraph chunk = new Paragraph("Calendar of Events for " + city + "Cafe" );
pdfDoc.Add(chunk);
pdfDoc.Add(table);
pdfDoc.Close();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=CafeCalendar.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Write(pdfDoc);
Response.End();
}
protected void OnPaging(object sender, GridViewPageEventArgs e)
{
gvEventCaf.PageIndex = e.NewPageIndex;
gvEventCaf.DataBind();
}
}