How to print all QR code in one page

Question

I want to take print from Gridview on raw cooamd all QR in ONE CLICk

Ashutosh Singh · Answer

To print all QR codes from a GridView in a .NET Core application in one click, you can follow these general steps: 1. Create a GridView in your .NET Core application that displays the data with QR codes. 2. Add a button or a link that triggers the print operation. 3. Generate the QR codes and place them in the GridView. Here's a simplified example using C# and ASP.NET Core: 1. Create a model for your data. For example: public class Item { public string Name { get; set; } public string QRCode { get; set; } } 2. In your Razor view, create a GridView that displays the data and a button for printing: @model List Name QR Code @foreach (var item in Model) { @item.Name } Print QR Codes 3. Add JavaScript to handle the print operation. You can use a JavaScript library like jsPDF to create a PDF document and add the QR codes to it. document.getElementById('printButton').addEventListener('click', function () { var doc = new jsPDF(); // Loop through the QR codes and add them to the PDF document @foreach (var item in Model) { doc.addImage('@item.QRCode', 'JPEG', 10, @itemIndex * 30, 50, 50); } // Save or print the PDF doc.save('QR_Codes.pdf'); // This will save the PDF, you can also use doc.print() to print it directly. }); In this example, the code assumes that your `Item` model contains QR code URLs. When you click the "Print QR Codes" button, it will generate a PDF document with all the QR codes and either save it or print it, depending on your choice.

Amit Mohanty · Answer

Could you please explain what you have accomplished so far? Please provide enough code so others can better understand the problem.

Marvin Reid · Answer

You can read and print all QR codes by leveraging the BarcodeEngine. You can first read all the QR codes using a similar approach: static void ReadBarcode(RasterImage image) { BarcodeEngine barcodeEngineInstance = new BarcodeEngine(); try { BarcodeData[] dataArray = barcodeEngineInstance.Reader.ReadBarcodes(image, LeadRect.Empty, 0, null); StringBuilder sb = new StringBuilder(); sb.AppendFormat("{0} barcode(s) found", dataArray.Length); sb.AppendLine(); for (int i = 0; i Once you have the data populated through BarcodeData, you can write them to a page in an output file. Here is some sample code which demonstrates writing a QR code: static void WriteQRBarcode(RasterImage image) { QRBarcodeData data = new QRBarcodeData { SymbolModel = QRBarcodeSymbolModel.Model1AutoSize, Symbology = BarcodeSymbology.QR, Value = "QR Data Value", //input values from BarcodeData data Bounds = new LeadRect(10, 250, image.ImageWidth, image.ImageHeight) //configure QR location }; QRBarcodeWriteOptions options = new QRBarcodeWriteOptions { GroupNumber = 0, GroupTotal = 0, XModule = 30, ECCLevel = QRBarcodeECCLevel.LevelL, HorizontalAlignment = BarcodeAlignment.Near, VerticalAlignment = BarcodeAlignment.Near }; barcodeEngine.Writer.WriteBarcode(image, data, options); } Finally you can print out your results: static void SaveImage(RasterImage image, string outputFilename) { using (RasterCodecs codecs = new RasterCodecs()) codecs.Save(image, outputFilename, RasterImageFormat.Png, 0); // save found and created QR codes Console.WriteLine(string.Format("The barcodes have been written and saved to {0}", outputFilename)); } https://www.leadtools.com/help/sdk/tutorials/dotnet-console-write-1d-and-2d-barcodes-to-an-image.html https://www.leadtools.com/help/sdk/tutorials/dotnet-console-detect-and-extract-barcodes.html

Ijas Ahamed · Answer

print all QR codes from a GridView in ASP.NET in one click 1. **Generate QR Codes**: First, you'll need to generate QR codes for the data you want to print. You can use a library like ZXing.NET to generate QR codes from your data. 2. **Populate GridView**: Populate your GridView with the data that corresponds to each QR code. 3. **Create a Print Button**: Add a button or a link on your webpage to trigger the printing process. 4. **Print in One Click**: - Use JavaScript: You can use JavaScript to iterate through the rows in your GridView and generate a print-friendly format (e.g., a printable HTML page) that contains all the QR codes. Then, trigger the browser's print dialog using JavaScript. This method allows you to print all QR codes with one click. - Use Server-Side Code: If you want to generate a PDF or other printable document on the server side, you can use a library like iTextSharp or a reporting tool like Crystal Reports or SQL Server Reporting Services (SSRS). These tools allow you to generate a PDF containing all the QR codes from your GridView data and then prompt the user to download or print the PDF. Here's a simplified example of using JavaScript to print QR codes from a GridView: ```html Print QR Codes document.getElementById("printButton").addEventListener("click", function () { // Iterate through GridView rows and create a printable document var printableContent = ''; var rows = document.querySelectorAll("yourGridViewSelector tr"); rows.forEach(function (row) { // Extract data from each row and generate QR code // Append the QR code or its image to printableContent }); // Create a new window or iframe for printing var printWindow = window.open('', '', 'width=600,height=600'); printWindow.document.open(); printWindow.document.write(' Printable QR Codes '); printWindow.document.write(printableContent); printWindow.document.write(' '); printWindow.document.close(); // Trigger the print dialog printWindow.print(); printWindow.close(); }); ``` Please replace `"yourGridViewSelector"` with the actual selector for your GridView. This is just a basic example, and you may need to adapt it to your specific requirements and the libraries you are using.

Tahir Ansari · Answer

Could you please provide more details on how you want to print all QR codes from the GridView with a single click? Specifically, what kind of information or format are you looking for in the print output,?

How to print all QR code in one page

Answers (5)