create barcode in webform

[cicciuzzo]

hi

I did this to create the barcode in winform in page_load event

Code: Select all

   this.packInfoTableAdapter.Fill(this.dsLabel.PackInfo);
            Spire.Barcode.BarcodeSettings barsetting = new Spire.Barcode.BarcodeSettings();

            //set the x dimension
            barsetting.X = 0.8f;
            barsetting.BarHeight = 25;
            barsetting.Unit = GraphicsUnit.Millimeter;
            barsetting.TextFont = new Font("Arial", 20.0f);
            barsetting.Type = Spire.Barcode.BarCodeType.EAN13;


            foreach (dsLabel.PackInfoRow row in this.dsLabel.PackInfo.Rows)
            {
                //Set the value to encode
                barsetting.Data = row.CustomValue.ToString();
                barsetting.Data2D = row.CustomValue.ToString();

                Spire.Barcode.BarCodeGenerator bargenerator = new Spire.Barcode.BarCodeGenerator(barsetting);
                Image barcodeimage = bargenerator.GenerateImage();
       
                //Generate the barcode image and store it into the Barcode Column
                row.BarCode = imageToByteArray(bargenerator.GenerateImage());
            }


            this.reportViewer1.RefreshReport();
       

how can I do the same thing in the webform?

in web there is a ObjectDataSource that acts as an intermediary with the dataset and do not know how to value the field of the dataset "barcode"

can you help?

[Gary.zhang]

Hello,

Thanks for your inquiry.
There is no any difference between winform and webform. Kindly note that the barcode only generate images with Spire.Barcode.BarCodeGenerator.GenerateImage() method.
Sincerely,
Gary
E-iceblue support team

[cicciuzzo]

Hello,

Thanks for your inquiry.
There is no any difference between winform and webform. Kindly note that the barcode only generate images with Spire.Barcode.BarCodeGenerator.GenerateImage() method.
Sincerely,
Gary
E-iceblue support team

tanks for you reply.

you can give me an example with the web form, because the code that I used with winform not work.

br

[cicciuzzo]

any suggestions?

[Gary.zhang]

Hello,

Please add a button in webform and refer to the following code.

Code: Select all

 protected void GenerateBarcode_Click(object sender, EventArgs e)
        {
            Spire.Barcode.BarcodeSettings barsetting = new Spire.Barcode.BarcodeSettings();
            barsetting.X = 0.8f;
            barsetting.BarHeight = 25;
            barsetting.Unit = GraphicsUnit.Millimeter;
            barsetting.TextFont = new Font("Arial", 20.0f);
            barsetting.Type = Spire.Barcode.BarCodeType.EAN13;
            barsetting.Data = "123456";
            Spire.Barcode.BarCodeGenerator bargenerator = new Spire.Barcode.BarCodeGenerator(barsetting);
            byte[] myImage = imageToByteArray(bargenerator.GenerateImage());

  }
        private byte[] imageToByteArray(System.Drawing.Image image)
        {
            using (MemoryStream ms = new MemoryStream())
            {
                image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                return ms.ToArray();
            }
        }


Sincerely,
Gary
E-iceblue support team

[cicciuzzo]

maybe I explained bad!


the problem is not generating the barcode, but add in a report rdlc when it appears ...

in winform I created in the 'load event of the form ... but the same code in the load of the webpage does not work.

thanks for your time

br

Hello,

Please add a button in webform and refer to the following code.

Code: Select all

 protected void GenerateBarcode_Click(object sender, EventArgs e)
        {
            Spire.Barcode.BarcodeSettings barsetting = new Spire.Barcode.BarcodeSettings();
            barsetting.X = 0.8f;
            barsetting.BarHeight = 25;
            barsetting.Unit = GraphicsUnit.Millimeter;
            barsetting.TextFont = new Font("Arial", 20.0f);
            barsetting.Type = Spire.Barcode.BarCodeType.EAN13;
            barsetting.Data = "123456";
            Spire.Barcode.BarCodeGenerator bargenerator = new Spire.Barcode.BarCodeGenerator(barsetting);
            byte[] myImage = imageToByteArray(bargenerator.GenerateImage());

  }
        private byte[] imageToByteArray(System.Drawing.Image image)
        {
            using (MemoryStream ms = new MemoryStream())
            {
                image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                return ms.ToArray();
            }
        }


Sincerely,
Gary
E-iceblue support team

[Gary.zhang]

Hello,

It seems that the issue is not caused by our product. Sorry that it might be not able to provide you the solution to the issue out of our product.

Thanks,
Gary
E-iceblue support team