vb.net pdf417 free

barcode pdf417 vb.net

barcode generator vb.net, barcode 128 generator vb.net, vb.net generate code 39, vb.net data matrix generator vb.net, vb.net gs1 128, vb.net ean 13, pdf417 vb.net

how to create a thumbnail image of a pdf in c#, free download barcode scanner for java mobile, java data matrix barcode, crystal reports ean 128, java code 128 reader, how to write pdf file in asp.net c#, vb.net upc-a reader, how to read pdf file in asp.net c#, datamatrix net examples, vb.net qr code reader free

// Save the file, quit Excel and display message to user. workSheet.SaveAs(string.Format(@"{0}\Inventory.xlsx", Environment.CurrentDirectory)); excelApp.Quit(); MessageBox.Show("The Inventory.xslx file has been saved to your app folder", "Export complete!"); } This method begins by loading Excel into memory, however you won t see it visible on your computer desktop. For this application, you are only interested in using the internal Excel object model. However, if you do want to actually display the UI of Excel, update your method with this additional line of code: static void ExportToExcel(List<Car> carsInStock) { // Load up Excel, then make a new empty workbook. Excel.Application excelApp = new Excel.Application(); // Go ahead and make Excel visible on the computer. excelApp.Visible = true; ... } Once you create an empty worksheet, you add three columns which are named similar to the properties of the Car class. After this point, you fill the cells with the data of the List<Car>, and save your file under the (hard coded) name Inventory.xlsx. At this point if you run your application, add a few new records, and export your data to Excel, you will then be able to open up the Inventory.xlsx file, which will be saved to the \bin\Debug folder of your Windows Forms application. Figure 18-10 shows a possible export.

In the preceding example, I passed the option type: "post" to $.ajax() so that it would fetch the JSON object via a POST request. Without this, jQuery would have tried to use a GET request by default, and it would have failed. It wouldn t have been obvious what was wrong the stock quote information would have silently failed to appear but if you used a debugging aid such as FireBug (a Firefox add-on), you would have seen that ASP.NET MVC responded with 500 Server Error. To see the error first-hand, you can try to fetch the JSON object through a GET request by navigating to /Stocks/GetQuote symbol=GOOG, as shown in Figure 14 15.

birt barcode plugin, birt upc-a, birt data matrix, police word ean 128, word ean 13 barcode, word pdf 417

Now, if you were to select the Microsoft.Office.Interop.Excel.dll assembly (in Solution Explorer), and set its Embed Interop Type property to False, you would have new compiler errors, as the COM Variant data is no longer realized as dynamic data, but as System.Object variables. This will require you to update ExportToExcel() with a number of casting operations. As well, if this project were compiled under Visual Studio 2008, you no longer have the benefit of optional/named parameters, and must explicitly marked all missing arguments. Here is a version of the ExportToExcel() method which would be required in earlier versions of C#: static void ExportToExcel2008(List<Car> carsInStock) { Excel.Application excelApp = new Excel.Application(); // Must mark missing params! excelApp.Workbooks.Add(Type.Missing); // Must cast Object as _Worksheet! Excel._Worksheet workSheet = (Excel._Worksheet)excelApp.ActiveSheet; // Must cast each Object as Range object then call // call low level Value2 property! ((Excel.Range)excelApp.Cells[1, "A"]).Value2 = "Make"; ((Excel.Range)excelApp.Cells[1, "B"]).Value2 = "Color"; ((Excel.Range)excelApp.Cells[1, "C"]).Value2 = "Pet Name"; int row = 1; foreach (Car c in carsInStock) { row++; // Must cast each Object as Range and call low level Value2 prop! ((Excel.Range)workSheet.Cells[row, "A"]).Value2 = c.Make; ((Excel.Range)workSheet.Cells[row, "B"]).Value2 = c.Color; ((Excel.Range)workSheet.Cells[row, "C"]).Value2 = c.PetName; } // Must call get_Range method and then specify all missing args!. excelApp.get_Range("A1", Type.Missing).AutoFormat( Excel.XlRangeAutoFormat.xlRangeAutoFormatClassic2, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); // Must specify all missing optional args! workSheet.SaveAs(string.Format(@"{0}\Inventory.xlsx", Environment.CurrentDirectory), Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); excelApp.Quit(); MessageBox.Show("The Inventory.xslx file has been saved to your app folder", "Export complete!"); }

Figure 14 15. By default, JsonResult refuses to serve GET requests. This is all about a security issue that applies when you serve JSON data over GET requests. Not all browsers can be trusted to protect the data from being leaked to third-party domains (for details, see http://haacked.com/archive/2009/06/25/json-hijacking.aspx). To mitigate this risk, Microsoft changed the behavior of JsonResult in ASP.NET MVC 2 so that it won t allow GET requests by default.

While the end result is identical, as I am sure you agree, this version of the method is much more verbose. As well, since earlier versions of C# (prior to .NET 4.0, to be specific) don t allow you to embedd the COM interop data, you would find that your output directory now contains local copies of a number of interop assemblies, which you would be required to ship to the end user s machine (Figure 18-11).

.net core barcode reader, c# .net core barcode generator, asp.net core qr code reader, how to generate barcode in asp net core