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1. Open Visual Studio and create a .NET project.
   • The sample code uses a web application.
2. Add a reference to SoftArtisans.OfficeWriter.ExcelWriter.dll
   • SoftArtisans.OfficeWriter.ExcelWriter.dll is located under Program Files > SoftArtisans > OfficeWriter > dotnet > bin

Writing the Code

1. Include the SoftArtisans.OfficeWriter.ExcelWriter namespace in the code behind

using SoftArtisans.Office.ExcelWriter;

using System.Data.SqlClient;

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2. In the method that will run the report, instantiate the ExcelApplication object.

ExcelApplication xla = new ExcelApplication();

3. Open the ExcelApplication with the ExcelApplication.Open() method and instantiate it as a Workbook object.

Workbook wb = xla.Open(Page.MapPath(@"templates\template.xlsx"))

4. Assuming that you taking the selections from a ASP.NEt ListBox, using the following utility method, create a string list of all the countries that were selected.

        protected List<string> GetListBoxSelections(){
        //Get the ListBox selections and make the appropriate number of copies
            List<string> countryNames = new List<string>();
            foreach (int i in ListBox1.GetSelectedIndices())
            {
                countryNames.Add(ListBox1.Items[i].Text);
            }
            return countryNames;
        }

5. ExcelApplication can make copies of a specified worksheet using the Worksheets.CopySheet() method. This method requires a Worksheet object representing the sheet to be copied; an integer representing the new worksheet's position and, the string representing the name of the new worksheet.

Insert the following code that iterates through the selected countries in the string list to make copies of the "SimpleTemplate" in the original template.xlsx file. Each new worksheet is placed after the "SimpleTemplate" sheet and is named based on the selected country from the string list. The <i>for<i> loop uses the <i>List<i>.Count method to determine how many copies must be made.

for (int i = 0; i < selectedCountries.Count; i++)
{
    wb.Worksheets.CopySheet(wb.Worksheets[0], wb.Worksheets.Count, selectedCountries[i]);
}

6. At this point, there is a worksheet named after each selected country and the original worksheet contained in the wb Workbook object. We need to hide the original worksheet using the Worksheet.Visibility method. This method can also make a worksheet 'visible' or 'very hidden.'

wb.Worksheets[0].Visibility = Worksheet.SheetVisibility.Hidden;

7. Select the first worksheet after the now hidden one to be displayed when the file first is opened using the Worksheets.Select() method.

wb.Worksheets[1].Select();

8.