在Windows窗体中打印多个条形码应用程序.NET C＃

below is my code

下面是我的代码

Draw method is below: Now when I generate the code it replaces the existing barcode and does not place a new barcode on picture box.

Draw方法如下：现在当我生成代码时，它取代了现有的条形码，并没有在图片框上放置新的条形码。

System.Drawing.Graphics g = this.pictureBox1.CreateGraphics();
g.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.SystemColors.Control), new Rectangle(x, y, 50, 50));
ean13.Scale = 1.0F;
ean13.DrawEan13Barcode(g, new System.Drawing.Point(a, a));
public void DrawEan13Barcode( System.Drawing.Graphics g, System.Drawing.Point pt )
{
    float width = this.Width * this.Scale;
    float height = this.Height * this.Scale;

    //  EAN13 Barcode should be a total of 113 modules wide.
    float lineWidth = width / 113f;

    // Save the GraphicsState.
    System.Drawing.Drawing2D.GraphicsState gs = g.Save( );

    // Set the PageUnit to Inch because all of our measurements are in inches.
    g.PageUnit = System.Drawing.GraphicsUnit.Millimeter;

    // Set the PageScale to 1, so a millimeter will represent a true millimeter.
    g.PageScale = 1;

    System.Drawing.SolidBrush brush = new System.Drawing.SolidBrush( System.Drawing.Color.Black );

    float xPosition = 0;

    System.Text.StringBuilder strbEAN13 = new System.Text.StringBuilder( );
    System.Text.StringBuilder sbTemp = new System.Text.StringBuilder( );

    float xStart = pt.X;
    float yStart = pt.Y;
    float xEnd = 0;

    System.Drawing.Font font = new System.Drawing.Font( "Arial", this._fFontSize * this.Scale );

    // Calculate the Check Digit.
    this.CalculateChecksumDigit( );

    sbTemp.AppendFormat( "{0}{1}{2}{3}", 
        this.CountryCode,
        this.ManufacturerCode,
        this.ProductCode, 
        this.ChecksumDigit );


    string sTemp = sbTemp.ToString( );

    string sLeftPattern = "";

    // Convert the left hand numbers.
    sLeftPattern = ConvertLeftPattern( sTemp.Substring( 0, 7 ) );

    // Build the UPC Code.
    strbEAN13.AppendFormat( "{0}{1}{2}{3}{4}{1}{0}",
        this._sQuiteZone, this._sLeadTail,
        sLeftPattern,                   
        this._sSeparator,
        ConvertToDigitPatterns( sTemp.Substring( 7 ), this._aRight ) );

    string sTempUPC = strbEAN13.ToString( );

    float fTextHeight = g.MeasureString( sTempUPC, font ).Height;

    // Draw the barcode lines.
    for( int i = 0; i < strbEAN13.Length; i++ )
    {
        if( sTempUPC.Substring( i, 1 ) == "1" )
        {
            if( xStart == pt.X )
                xStart = xPosition;

            // Save room for the UPC number below the bar code.
            if( ( i > 12 && i < 55 ) || ( i > 57 && i < 101 ) )
                // Draw space for the number
                g.FillRectangle( brush, xPosition, yStart, lineWidth, height - fTextHeight );
            else
                // Draw a full line.
                g.FillRectangle( brush, xPosition, yStart, lineWidth, height );
        }

        xPosition += lineWidth;
        xEnd = xPosition;
    }

    // Draw the upc numbers below the line.
    xPosition = xStart - g.MeasureString( this.CountryCode.Substring( 0, 1 ), font ).Width;
    float yPosition = yStart + ( height - fTextHeight );

    // Draw 1st digit of the country code.
    g.DrawString( sTemp.Substring( 0, 1 ), font, brush, new System.Drawing.PointF( xPosition, yPosition ) );

    xPosition += ( g.MeasureString( sTemp.Substring( 0, 1 ), font ).Width + 43 * lineWidth ) -
        ( g.MeasureString( sTemp.Substring( 1, 6 ), font ).Width );

    // Draw MFG Number.
    g.DrawString( sTemp.Substring( 1, 6 ), font, brush, new System.Drawing.PointF( xPosition, yPosition ) );

    xPosition += g.MeasureString( sTemp.Substring( 1, 6 ), font ).Width + ( 11 * lineWidth );

    // Draw Product ID.
    g.DrawString( sTemp.Substring( 7 ), font, brush, new System.Drawing.PointF( xPosition, yPosition ) );

    // Restore the GraphicsState.
    g.Restore( gs );
}


public System.Drawing.Bitmap CreateBitmap( )
{
    float tempWidth = ( this.Width * this.Scale ) * 100 ;
    float tempHeight = ( this.Height * this.Scale ) * 100;

    System.Drawing.Bitmap bmp = new System.Drawing.Bitmap( (int)tempWidth, (int)tempHeight );

    System.Drawing.Graphics g = System.Drawing.Graphics.FromImage( bmp );
    this.DrawEan13Barcode( g, new System.Drawing.Point( 0, 0 ) );
    g.Dispose( );
    return bmp;
}

if there is an alternative way of doing this, requirement is clear

如果有另一种方法可以做到这一点，那么要求是明确的

draw and print N number of barcodes using windows forms

使用Windows窗体绘制和打印N个条形码

1 个解决方案

#1

you can generate barcode and save its image in database sql server. then create crystal report and get that field on crystal report detail section. you will get what you need.

您可以生成条形码并将其图像保存在数据库sql server中。然后创建水晶报告并在水晶报告详细信息部分获取该字段。你会得到你需要的东西。