Excel AutoFilter in C# and VB.NET

The following example shows how to filter rows in a specific cell range of an Excel worksheet with C# and VB.NET using GemBox.Spreadsheet.

Filtered rows are hidden in all output file formats. The active Filter is written only to the XLSX file format.

Screenshot of Excel AutoFilter applied with GemBox.Spreadsheet

C#
VB.NET

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using GemBox.Spreadsheet;

class Program
{
    static void Main()
    {
        // If using the Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");

        var workbook = ExcelFile.Load("%#SampleData.xlsx%");
        var worksheet = workbook.Worksheets["Data"];
        int rowCount = worksheet.Rows.Count;

        // Specify range which will be filtered.
        var filterRange = worksheet.Cells.GetSubrangeAbsolute(0, 0, rowCount, 4);

        // Show only rows which satisfy following conditions:
        // - 'Departments' value is either "Legal" or "Marketing" or "Finance" and
        // - 'Names' value contains letter 'e' and
        // - 'Salaries' value is in the top 20 percent of all 'Salaries' values and
        // - 'Deadlines' value is today's date.
        // Shown rows are then sorted by 'Salaries' values in the descending order.
        filterRange.Filter()
            .ByValues(0, "Legal", "Marketing", "Finance")
            .ByCustom(1, FilterOperator.Equal, "*e*")
            .ByTop10(3, true, true, 20)
            .ByDynamic(4, DynamicFilterType.Today)
            .SortBy(3, true)
            .Apply();

        workbook.Save("Filtering.%OutputFileType%");
    }
}

Imports GemBox.Spreadsheet

Module Program

    Sub Main()

        ' If using the Professional version, put your serial key below.
        SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY")

        Dim workbook = ExcelFile.Load("%#SampleData.xlsx%")
        Dim worksheet = workbook.Worksheets("Data")
        Dim rowCount As Integer = worksheet.Rows.Count

        ' Specify range which will be filtered.
        Dim filterRange = worksheet.Cells.GetSubrangeAbsolute(0, 0, rowCount, 4)

        ' Show only rows which satisfy following conditions:
        ' - 'Departments' value is either "Legal" or "Marketing" or "Finance" and
        ' - 'Names' value contains letter 'e' and
        ' - 'Salaries' value is in the top 20 percent of all 'Salaries' values and
        ' - 'Deadlines' value is today's date.
        ' Shown rows are then sorted by 'Salaries' values in the descending order.
        filterRange.Filter() _
            .ByValues(0, "Legal", "Marketing", "Finance") _
            .ByCustom(1, FilterOperator.Equal, "*e*") _
            .ByTop10(3, True, True, 20) _
            .ByDynamic(4, DynamicFilterType.Today) _
            .SortBy(3, True) _
            .Apply()

        workbook.Save("Filtering.%OutputFileType%")
    End Sub
End Module

Next steps

GemBox.Spreadsheet is a .NET component that enables you to read, write, edit, convert, and print spreadsheet files from your .NET applications using one simple API.

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Published: December 13, 2018 | Modified: April 28, 2023 | Author: Stipo Rubic

Excel AutoFilter in C# and VB.NET

See also

Next steps