Set Excel AutoFilter in C# and VB.NET

Name: GemBox.Spreadsheet
Author: GemBox Ltd.

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

using GemBox.Spreadsheet;

// 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 word "Fred" and
// - 'Salaries' value is in the top 20 percent of all 'Salaries' values.
// Shown rows are then sorted by 'Salaries' values in the descending order.
filterRange.Filter()
    .ByValues(0, "Legal", "Marketing", "Finance")
    .ByCustom(1, FilterOperator.Equal, "*Fred*")
    .ByTop10(3, true, true, 20)
    .SortBy(3, true)
    .Apply();

workbook.Save("Filtering.xlsx");

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 word "Fred" and
        ' - 'Salaries' value is in the top 20 percent of all 'Salaries' values.
        ' Shown rows are then sorted by 'Salaries' values in the descending order.
        filterRange.Filter() _
            .ByValues(0, "Legal", "Marketing", "Finance") _
            .ByCustom(1, FilterOperator.Equal, "*Fred*") _
            .ByTop10(3, True, True, 20) _
            .SortBy(3, True) _
            .Apply()

        workbook.Save("Filtering.xlsx")
    End Sub
End Module

Screenshot of Excel AutoFilter applied with GemBox.Spreadsheet

Note that filtered rows are hidden in all output file formats, but the active Filter is written only to the XLSX file format.

Set Excel AutoFilter in C# and VB.NET

See also

Next steps