有没有办法为Crystal Reports使用免费的条形码API？ [英] Is there any way to use free barcode api for Crystal Reports?
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问题描述
你好
我需要使用c＃crystalreports的条形码。我发现了一些api（tarcode，onbarcode）但它们是演示并在条形码上写了一些文本。这是在水晶报告上使用条形码（EAN13）的任何方式。例如，我的值为15，当我检查报告的条形码时，它必须给出15。
如果有人告诉我解决它会挽救我的生命
Hello
I need to use barcode for c# crystalreports. I found some of apis (tarcode,onbarcode) but they were demos and written some texts on barcode. Is that any way to use barcode (EAN13) on crystal reports. For example My value is 15 and when i check report's barcode it must give 15 .
If anyone tell me a solve it will save my life
推荐答案
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
namespace DSBarCode
{
public class BarCodeCtrl : System.Windows.Forms.UserControl
{
private System.Windows.Forms.Panel panel1;
private System.Drawing.Printing.PrintDocument printDocument1;
private System.ComponentModel.Container components = null;
public enum AlignType
{
Left, Center, Right
}
public enum BarCodeWeight
{
Small = 1, Medium, Large
}
private AlignType align = AlignType.Center;
private String code = "1234567890";
private int leftMargin = 10;
private int topMargin = 10;
private int height = 50;
private bool showHeader;
private bool showFooter;
private String headerText = "BarCode Demo";
private BarCodeWeight weight = BarCodeWeight.Small;
private Font headerFont = new Font("Courier", 18);
private Font footerFont = new Font("Courier", 8);
public AlignType VertAlign
{
get { return align; }
set { align = value; panel1.Invalidate(); }
}
public String BarCode
{
get { return code; }
set { code = value.ToUpper(); panel1.Invalidate(); }
}
public int BarCodeHeight
{
get { return height; }
set { height = value; panel1.Invalidate(); }
}
public int LeftMargin
{
get { return leftMargin; }
set { leftMargin = value; panel1.Invalidate(); }
}
public int TopMargin
{
get { return topMargin; }
set { topMargin = value; panel1.Invalidate(); }
}
public bool ShowHeader
{
get { return showHeader; }
set { showHeader = value; panel1.Invalidate(); }
}
public bool ShowFooter
{
get { return showFooter; }
set { showFooter = value; panel1.Invalidate(); }
}
public String HeaderText
{
get { return headerText; }
set { headerText = value; panel1.Invalidate(); }
}
public BarCodeWeight Weight
{
get { return weight; }
set { weight = value; panel1.Invalidate(); }
}
public Font HeaderFont
{
get { return headerFont; }
set { headerFont = value; panel1.Invalidate(); }
}
public Font FooterFont
{
get { return footerFont; }
set { footerFont = value; panel1.Invalidate(); }
}
public BarCodeCtrl()
{
InitializeComponent();
}
public void Print()
{
PrintDialog pd = new PrintDialog();
pd.Document = printDocument1;
if (pd.ShowDialog() == DialogResult.OK)
{
pd.Document.Print();
}
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if( components != null )
components.Dispose();
}
base.Dispose( disposing );
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.printDocument1 = new System.Drawing.Printing.PrintDocument();
this.SuspendLayout();
//
// panel1
//
this.panel1.BackColor = System.Drawing.SystemColors.Window;
this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.panel1.Location = new System.Drawing.Point(0, 0);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(424, 240);
this.panel1.TabIndex = 0;
this.panel1.Paint += new System.Windows.Forms.PaintEventHandler(this.panel1_Paint);
//
// printDocument1
//
this.printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.printDocument1_PrintPage);
//
// BarCodeCtrl
//
this.Controls.Add(this.panel1);
this.Name = "BarCodeCtrl";
this.Size = new System.Drawing.Size(424, 240);
this.Resize += new System.EventHandler(this.BarCodeCtrl_Resize);
this.ResumeLayout(false);
}
#endregion
String alphabet39="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-.
/ +％ *;
字符串 [] coded39Char =
{
/ * 0 * / 000110100 ，
/ * 1 * / 100100001，
/ * 2 * / 001100001，
/ * 3 * / 101100000，
/ * 4 * / 000110001，
/ * 5 * / 100110000，
/ * 6 * / 001110000，
/ * 7 * / 000100101，
/ * 8 * / 100100100，
/ * 9 * / 001100100，
/ * A * / 100001001，
/ * B * / 001001001，
/ * C * / 101001000，
/ * D * / 000011001，
/ * E * / 100011000，
/ * F * / 001011000，
< span class =code-comment> / * G * / 000001101，
/ * H * / 100001100，
/ * I * / < span class =code-string> 001001100，
/ * J * / 000011100，
/ * K * / 100000011，
/ * L * / 001000011，
/ * M * / 101000010，
/ * N * / 00001 0011，
/ * O * / 100010010，
/ * P * / 001010010，
< span class =code-comment> / * Q * / 000000111，
/ * R * / 100000110，
/ * S * / 001000110，
/ * T * / 000010110，
/ * U * / < span class =code-string> 110000001，
/ * V * / 011000001，
/ * W * / 111000000，
/ * X * / 010010001，
/ * Y * / 110010000，
/ * Z * / 011010000，
/ * - * / 010000101，
/ * 。 * / 110000100，
/ * ''* / 011000100，
/ *
/+%*"; String [] coded39Char = { /* 0 */ "000110100", /* 1 */ "100100001", /* 2 */ "001100001", /* 3 */ "101100000", /* 4 */ "000110001", /* 5 */ "100110000", /* 6 */ "001110000", /* 7 */ "000100101", /* 8 */ "100100100", /* 9 */ "001100100", /* A */ "100001001", /* B */ "001001001", /* C */ "101001000", /* D */ "000011001", /* E */ "100011000", /* F */ "001011000", /* G */ "000001101", /* H */ "100001100", /* I */ "001001100", /* J */ "000011100", /* K */ "100000011", /* L */ "001000011", /* M */ "101000010", /* N */ "000010011", /* O */ "100010010", /* P */ "001010010", /* Q */ "000000111", /* R */ "100000110", /* S */ "001000110", /* T */ "000010110", /* U */ "110000001", /* V */ "011000001", /* W */ "111000000", /* X */ "010010001", /* Y */ "110010000", /* Z */ "011010000", /* - */ "010000101", /* . */ "110000100", /*' '*/ "011000100", /*
* / 010101000，
/ * / * / 010100010 ，
/ * + * / 010001010，
/ * ％* / 000101010，
/ * * * / 010010100
};
private void panel1_Paint（ object sender，System.Windows.Forms.PaintEventArgs e）
{
String intercharacterGap = 0;
字符串 str = ' *' + code.ToUpper（）+ ' *';
int strLength = str.Length;
for （ int i = 0 ; i< code.length>
{
if （alphabet39.IndexOf（code [i]）== - 1 || code [i] == ' *'）
{
e.Graphics.DrawString（ INVALID BAR CODE TEXT，Font，Brushes.Red， 10 ， 10 ）;
return ;
}
}
字符串 encodedString = ;
for （ int i = 0 ; i< strlength; i ++>
{
if （i> 0）
encodedSt环+ = intercharacterGap;
encodedString + = coded39Char [alphabet39.IndexOf（str [i]）];
}
int encodedStringLength = encodedString.Length;
int widthOfBarCodeString = 0 ;
double wideToNarrowRatio = 3 ;
if （align！= AlignType.Left）
{
for （ int i = 0 ; i< encodedstringlength; > {
if （encodedString [i] == ' 1'）
widthOfBarCodeString + =（ int ）（wideToNarrowRatio *（< span class =code-keyword> int ）weight）;
else
widthOfBarCodeString + =（ int ）权重;
}
}
int x = 0 ;
int wid = 0 ;
int yTop = 0 ;
SizeF h Size = e.Graphics.MeasureString（headerText，headerFont）;
SizeF fSize = e.Graphics.MeasureString（code，footerFont）;
int headerX = 0 ;
int footerX = 0 ;
if （align == AlignType.Left）
{
x = leftMargin;
headerX = leftMargin;
footerX = leftMargin;
}
其他 如果（align == AlignType.Center）
{
x =（宽度 - widthOfBarCodeString）/ 2 ;
headerX =（宽度 - （ int ）hSize.Width）/ 2 ;
footerX =（宽度 - （ int ）fSize.Width）/ 2 ;
}
else
{
x =宽度 - widthOfBarCodeString - leftMargin;
headerX =宽度 - （ int ）hSize.Width - leftMargin;
footerX =宽度 - （ int ）fSize.Width - leftMargin;
}
if （showHeader）
{
yTop =（ int ）hSize.Height + topMargin;
e.Graphics.DrawString（headerText，headerFont，Brushes.Black，headerX，topMargin）;
}
else
{
yTop = topMargin;
}
for （ int i = 0 ; i< encodedstringlength; > {
if （encodedString [i] == ' 1'）
wid =（ int ）（wideToNarrowRatio *（ int ）weight）;
else
wid =（ int ）重量;
e.Graphics.FillRectangle（i％2 == 0 ？Brushes.Black：Brushes.White，x，yTop，wid，height）;
x + = wid;
}
yTop + = height;
if （showFooter）
e.Graphics.DrawString（code ，footerFont，Brushes.Black，footerX，yTop）;
}
private void printDocument1_PrintPage（ object sender，System.Drawing.Printing.PrintPageEventArgs e）
{
panel1_Paint（sender， new PaintEventArgs（e.Graphics， this .ClientRectangle））;
}
public void SaveImage（ String 文件）
{
位图bmp = new 位图（宽度，高度，系统绘图。成像.PixelFormat.Format32bppArgb）;
图形g = Graphics.FromImage（bmp）;
g.FillRectangle（Brushes.White， 0 ， 0 ，宽度，高度）;
panel1_Paint（ null ， new PaintEventArgs（g，此 .ClientRectangle））;
bmp.Save（file）;
}
private void BarCodeCtrl_Resize（ object sender，System.EventArgs e）
{
panel1.Invalidate（）;
}
}
}
< / code.length >
*/ "010101000", /* / */ "010100010", /* + */ "010001010", /* % */ "000101010", /* * */ "010010100" }; private void panel1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { String intercharacterGap="0"; String str = '*'+code.ToUpper()+'*'; int strLength=str.Length; for ( int i=0;i<code.length> { if (alphabet39.IndexOf(code[i])==-1 || code[i] == '*') { e.Graphics.DrawString("INVALID BAR CODE TEXT", Font, Brushes.Red, 10, 10); return; } } String encodedString=""; for ( int i=0;i<strlength;i++> { if (i>0) encodedString+=intercharacterGap; encodedString+=coded39Char[alphabet39.IndexOf(str[i])]; } int encodedStringLength = encodedString.Length; int widthOfBarCodeString = 0; double wideToNarrowRatio=3; if (align != AlignType.Left) { for ( int i=0;i<encodedstringlength;> { if ( encodedString[i]=='1' ) widthOfBarCodeString+=(int)(wideToNarrowRatio*(int)weight); else widthOfBarCodeString+=(int)weight; } } int x = 0; int wid=0; int yTop = 0; SizeF hSize = e.Graphics.MeasureString(headerText, headerFont); SizeF fSize = e.Graphics.MeasureString(code, footerFont); int headerX = 0; int footerX = 0; if (align == AlignType.Left) { x = leftMargin; headerX = leftMargin; footerX = leftMargin; } else if (align == AlignType.Center) { x = (Width - widthOfBarCodeString) / 2; headerX = (Width - (int)hSize.Width) / 2; footerX = (Width - (int)fSize.Width) / 2; } else { x = Width - widthOfBarCodeString - leftMargin; headerX = Width - (int)hSize.Width - leftMargin; footerX = Width - (int)fSize.Width - leftMargin; } if (showHeader) { yTop = (int)hSize.Height + topMargin; e.Graphics.DrawString(headerText, headerFont, Brushes.Black, headerX, topMargin); } else { yTop = topMargin; } for ( int i=0;i<encodedstringlength;> { if ( encodedString[i]=='1' ) wid=(int)(wideToNarrowRatio*(int)weight); else wid=(int)weight; e.Graphics.FillRectangle(i%2==0? Brushes.Black : Brushes.White, x, yTop, wid, height); x+=wid; } yTop += height; if (showFooter) e.Graphics.DrawString(code, footerFont, Brushes.Black, footerX, yTop); } private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { panel1_Paint(sender, new PaintEventArgs(e.Graphics, this.ClientRectangle)); } public void SaveImage(String file) { Bitmap bmp = new Bitmap(Width, Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb); Graphics g = Graphics.FromImage(bmp); g.FillRectangle(Brushes.White, 0, 0, Width, Height); panel1_Paint(null, new PaintEventArgs(g, this.ClientRectangle)); bmp.Save(file); } private void BarCodeCtrl_Resize(object sender, System.EventArgs e) { panel1.Invalidate(); } } } </code.length>
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