protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["d"] != null)
{
//Read in the parameters
string strData = Request.QueryString["d"];
int imageHeight = Convert.ToInt32(Request.QueryString["h"]);
int imageWidth = Convert.ToInt32(Request.QueryString["w"]);
string Forecolor = Request.QueryString["fc"];
string Backcolor = Request.QueryString["bc"];
bool bIncludeLabel = Request.QueryString["il"].ToLower().Trim() == "true";
string strImageFormat = Request.QueryString["if"].ToLower().Trim();
string strAlignment = Request.QueryString["align"].ToLower().Trim();
BarcodeUtility.TYPE type = BarcodeUtility.TYPE.UNSPECIFIED;
switch (Request.QueryString["t"].Trim())
{
case "UPC-A": type = BarcodeUtility.TYPE.UPCA; break;
case "UPC-E": type = BarcodeUtility.TYPE.UPCE; break;
case "UPC 2 Digit Ext": type = BarcodeUtility.TYPE.UPC_SUPPLEMENTAL_2DIGIT; break;
case "UPC 5 Digit Ext": type = BarcodeUtility.TYPE.UPC_SUPPLEMENTAL_5DIGIT; break;
case "EAN-13": type = BarcodeUtility.TYPE.EAN13; break;
case "JAN-13": type = BarcodeUtility.TYPE.JAN13; break;
case "EAN-8": type = BarcodeUtility.TYPE.EAN8; break;
case "ITF-14": type = BarcodeUtility.TYPE.ITF14; break;
case "Codabar": type = BarcodeUtility.TYPE.Codabar; break;
case "PostNet": type = BarcodeUtility.TYPE.PostNet; break;
case "Bookland-ISBN": type = BarcodeUtility.TYPE.BOOKLAND; break;
case "Code 11": type = BarcodeUtility.TYPE.CODE11; break;
case "Code 39": type = BarcodeUtility.TYPE.CODE39; break;
case "Code 39 Extended": type = BarcodeUtility.TYPE.CODE39Extended; break;
case "Code 93": type = BarcodeUtility.TYPE.CODE93; break;
case "LOGMARS": type = BarcodeUtility.TYPE.LOGMARS; break;
case "MSI": type = BarcodeUtility.TYPE.MSI_Mod10; break;
case "Interleaved 2 of 5": type = BarcodeUtility.TYPE.Interleaved2of5; break;
case "Standard 2 of 5": type = BarcodeUtility.TYPE.Standard2of5; break;
case "Code 128": type = BarcodeUtility.TYPE.CODE128; break;
case "Code 128-A": type = BarcodeUtility.TYPE.CODE128A; break;
case "Code 128-B": type = BarcodeUtility.TYPE.CODE128B; break;
case "Code 128-C": type = BarcodeUtility.TYPE.CODE128C; break;
case "Telepen": type = BarcodeUtility.TYPE.TELEPEN; break;
case "FIM (Facing Identification Mark)": type = BarcodeUtility.TYPE.FIM; break;
case "Pharmacode": type = BarcodeUtility.TYPE.PHARMACODE; break;
default: break;
}//switch
System.Drawing.Image barcodeImage = null;
try
{
BarcodeUtility.Barcode b = new BarcodeUtility.Barcode();
if (type != BarcodeUtility.TYPE.UNSPECIFIED)
{
b.IncludeLabel = bIncludeLabel;
//alignment
switch (strAlignment.ToLower().Trim())
{
case "c": b.Alignment = BarcodeUtility.AlignmentPositions.CENTER;
break;
case "r": b.Alignment = BarcodeUtility.AlignmentPositions.RIGHT;
break;
case "l": b.Alignment = BarcodeUtility.AlignmentPositions.LEFT;
break;
default: b.Alignment = BarcodeUtility.AlignmentPositions.CENTER;
break;
}//switch
if (Forecolor.Trim() == "" && Forecolor.Trim().Length != 6)
{
Forecolor = "000000";
}
if (Backcolor.Trim() == "" && Backcolor.Trim().Length != 6)
{
Backcolor = "FFFFFF";
}
//===== Encoding performed here =====
barcodeImage = b.Encode(type, strData.Trim(), System.Drawing.ColorTranslator.FromHtml("#" + Forecolor), System.Drawing.ColorTranslator.FromHtml("#" + Backcolor), imageWidth, imageHeight);
//===================================
//===== Static Encoding performed here =====
//barcodeImage = BarcodeUtility.Barcode.DoEncode(type, this.txtData.Text.Trim(), this.chkGenerateLabel.Checked, this.btnForeColor.BackColor, this.btnBackColor.BackColor);
//==========================================
Response.ContentType = "image/" + strImageFormat;
System.IO.MemoryStream MemStream = new System.IO.MemoryStream();
switch (strImageFormat)
{
case "gif": barcodeImage.Save(MemStream, ImageFormat.Gif); break;
case "jpeg": barcodeImage.Save(MemStream, ImageFormat.Jpeg); break;
case "png": barcodeImage.Save(MemStream, ImageFormat.Png); break;
case "bmp": barcodeImage.Save(MemStream, ImageFormat.Bmp); break;
case "tiff": barcodeImage.Save(MemStream, ImageFormat.Tiff); break;
default: break;
} //switch
MemStream.WriteTo(Response.OutputStream);
} //if
} //try
catch (Exception ex)
{
//TODO: find a way to return this to display the encoding error message
}//catch
finally
{
if (barcodeImage != null)
{
//Clean up / Dispose...
barcodeImage.Dispose();
}
} //finally
} //if
}
