在征詢建議的基礎上進行了補全修改，正式寫為DLL，可以完成基本的報表定制、打印功能。在程序設計中，很多時候報表不需要那么龐雜的功能，一些小程序的數據庫報表只需要簡單處理，就沒必要安裝FastReport、Crystal Reports、DevExpress等龐大組件了。由于為前面征詢意見的補全，所以不需分數。

此程序代碼可優化、功能可添加，自行完善修改。

1、調用方式：將EzReport_Build.dll添加到引用中，將fontawesome-webfont.ttf字庫文件放置在一起

private void button1_Click(object sender, EventArgs e)

{

    Form_Desing.Initialize_Design();

}

即可，也可將Preview.cs、Form_Desing.cs中的private PanelEx修改為public PanelEx，在你的Form中直接嵌入調用，比如打印、預覽比例等函數有些已設置為public，也可將需要的函數和組件設為public直接調用。

數據庫定義在：Define_DataLink.cs

繪制定義在：Draw_Function.cs

報表組件、界面顏色等定義在：Define_Global.cs

界面等其他附屬在ui文件夾

2、 打印模式

設置dpi為96，SetResolution(96, 96);

相對應dpi

打印紙張類型：

public static string[] page_types = new string[24] {

            "A0","A1","A2","A3","A4","A5","A6","A7",

            "B0","B1","B2","B3","B4","B5","B6","B7",

            "C0","C1","C2","C3","C4","C5","C6","C7"

        };

以及自定義紙張（單位設置為毫米）換算公式為：

(int)Math.Floor(int.Parse(input_def[0].textBox.Text) * 3.779527559055118)

相對應紙張大小（毫米）

public static string[] page_size = new string[24] {

"841×1189","594×841","420×594","297×420","210×297","148×210","105×148","74×105",

"1000×1414","707×1000","500×707","353×500","250×353","176×250","125×176","88×125",

"917×1297","648×917","458×648","324×458","229×324","162×229","114×162","81×114"

        };

對應像素為：

public static string[] page_pixel = new string[24] {

"3178×4493","2245×3178","1587×2245","1122×1587","793×1122","559×793","396×559","279×396",

"3779×5344","2672×3779","1889×2672","1334×1889","944×1334","665×944","472×665","332×472",

"3465×4902","2449×3465","1731×2449","1235×1731","865×1224","612×865","430×612","306×430"

        };

按照ISO標準紙型、尺寸設置。

打印支持選項：

3、快捷鍵

Ctrl 上、下、左、右可移動組件

Shift 上、下、左、右調整組件大小

Alt V 粘貼、Alt C復制、等，在報表組件上點擊右鍵，菜單中可看見或在報表欄目空白處點擊右鍵。

4、 其余可參見代碼中public函數，

其他說明可參見草稿：https://www.haolizi.net/example/view_16592.html

征求意見稿：https://www.haolizi.net/example/view_16896.html

如有疏漏自行修正。

實在抱歉，源碼有一點誤差：
Report_Function.cs 的print_File ()函數內修改為：
if (_pgselect != -1)
         {
             pSize = new PaperSize(page_types[_pgselect] " page", (int)(PreViewPage_Area.Width / 25.4f * 100f), (int)(PreViewPage_Area.Height / 25.4f * 100f));
 ..........................

    }
         else
         {
             ..............................
             pSize = new PaperSize("Custom page", (int)(PreViewPage_Area.Width / 25.4f * 100f), (int)(PreViewPage_Area.Height / 25.4f * 100f));
         }

換算比例搞成舊的了，橫向打印輸出打印機打不全了。自己修改下