Setting GS1-128 Barcode Size in C#

Controling GS1-128 Barcode Size in C#

OnBarcode provides professional GS1-128 generation components for ASP.NET, C#, VB.NET applications.

C# GS1-128 Generation Control - To create, draw GS1 128 in C# projects
ASP.NET GS1-128 Generation Control - To generate, draw GS1 128 in ASP.NET projects
VB.NET GS1-128 Generation Control - To create, encode GS1 128 in VB.NET projects

GS1-128 Structure

W : he symbol width of GS1-128
Q : the width of the quiet zone; Qmin=10X
X : the width of a module bar; Xmin=1 pixel
N : the number of symbol character (double density for numeric data in Code C)in the above example, N=20 for Code set A/B, N=10 for Code set C.

Setting GS1-128 Barcode Size in C#

Basic information you should know

The width W of a GS1-128 symbol, including quiet zones, can be calculated from the following expression:

W = 2Q + 46X + 11NX

GS1-128 barcode height is user-defined. So you can adjust the barcode height through Top and Bottom Margin settings in C# GS1-128 generator according to your applications.

Three Situations for Setting GS1-128 Barcode Size in C#

Setting GS1-128 barcode size in C# GS1-128 Generator may have three situations:

Situation 1:

If you want to create a GS1-128 with a minimum X, please do as below:

Set the minimum value of X.
Set the AutoResize option to be false.
Customize other properties.

Eg1. Set in C# GS1-128 generator:

ean128.X = 2;

ean128.AutoResize = false;

Other properties: default;

The generated GS1-128 image is:

Situation 2:

If you want to generate a GS1-128 with a fixed barcode image width (W), and try to draw maximum barcode module (X) as possible, please do as follows:

Set the fixed value of barcode image width (W).
Set the AutoResize option to be true.
Customize other properties.

Eg2. Set in C# GS1-128generator:

ean128.BarcodeWidth = 250;

ean128.BarcodeHeight = 60;

ean128.AutoResize = true;

Other properties: default;

The generated GS1-128 image is:

In the above GS1-128 image, the bar module (X) is 2 pixel, which is the maximum bar module.

Situation 3:

If you want to generate a GS1-128 with minimum X and fixed barcode image width (W), please do as below:

Set the values of minimum X and barcode image width (W).
Set the AutoResize option to be false.
Customize other properties.

Eg3. Set in C# GS1-128 generator:

ean128.X = 1;

ean128.BarcodeWidth = 120;

ean128.AutoResize = false;

Other properties: default;

The generated GS1-128 image is:

Note that, once you have set bar module (X) value, there will be a minimum barcode image width defined by GS1-128 ISO specification.

GS1-128 minimum barcode image width (W min) is:

= 66 X + 11 NX

So if your BarcodeWidth value is less than the minimum barcode width, the barcode generator component will reset BarcodeWidth value to the minimum barcode width value.

For example, you set:

ean128.X = 3;

ean128.BarcodeWidth = 200;

ean128. Data = "(00)1234";

ean128.AutoResize = false;

Other properties: default;

Then GS1-128 barcodes minimum width (Wmin) is:

= 66*3+11*3*3

= 297 pixel

Now your BarcodeWidth setting is 200 pixel, which is less than the minimum barcode width, the component generated GS1-128 image will be like this.

If your BarcodeWidth setting is 320 pixel, which is larger than the minimum barcode width (297 pixel), the generated GS1-128 image will be like below. And extra 11.5 pixel space has been added to the left and right side of barcode image.

Setting GS1-128 Barcode Size in C#

Controling GS1-128 Barcode Size in C#

GS1-128 Structure

Setting GS1-128 Barcode Size in C#

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