corelibraries-devexpress-dot-export-dot-xl-47791e67.md
A collection of XlFilterColumn objects.
Namespace : DevExpress.Export.Xl
Assembly : DevExpress.Printing.v25.2.Core.dll
NuGet Package : DevExpress.Printing.Core
public interface IXlFilterColumns :
IEnumerable<XlFilterColumn>,
IEnumerable,
ICollection
Public Interface IXlFilterColumns
Inherits IEnumerable(Of XlFilterColumn),
IEnumerable,
ICollection
The following members return IXlFilterColumns objects:
Use the IXlSheet.AutoFilterColumns property to get access to the IXlFilterColumns collection. Create an XlFilterColumn instance and add it to the collection to specify the filter criteria for a particular column in the cell range you wish to filter.
Use the IXlSheet.BeginFiltering - IXlSheet.EndFiltering method pair to filter data using the specified filter expression(s). If the generated row contains cells that do not meet the filter criteria, the row is hidden.
Refer to the Filtering topic to learn more about data filtering in the Excel Export Library.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/excel-export-api-examples
// Generate the header row.
using (IXlRow row = sheet.CreateRow())
row.BulkCells(new string[] { "Region", "Product", "Sales" }, headerRowFormatting);
// Create a custom filter to display values in the "Sales" column that are greater than $4500.
XlCustomFilters filter = new XlCustomFilters(new XlCustomFilterCriteria(XlFilterOperator.GreaterThanOrEqual, 4500));
sheet.AutoFilterColumns.Add(new XlFilterColumn(2, filter));
// Start filtering data.
sheet.BeginFiltering(sheet.DataRange);
// Generate data for the document.
string[] products = new string[] { "Camembert Pierrot", "Gorgonzola Telino", "Mascarpone Fabioli", "Mozzarella di Giovanni" };
int[] amount = new int[] { 6750, 4500, 3550, 4250, 5500, 6250, 5325, 4235 };
for (int i = 0; i < 8; i++)
{
using (IXlRow row = sheet.CreateRow())
{
using (IXlCell cell = row.CreateCell())
{
cell.Value = (i < 4) ? "East" : "West";
cell.ApplyFormatting(rowFormatting);
}
using (IXlCell cell = row.CreateCell())
{
cell.Value = products[i % 4];
cell.ApplyFormatting(rowFormatting);
}
using (IXlCell cell = row.CreateCell())
{
cell.Value = amount[i];
cell.ApplyFormatting(rowFormatting);
}
}
}
// Finish filtering.
sheet.EndFiltering();
' Generate the header row.
Using row As IXlRow = sheet.CreateRow()
row.BulkCells(New String() { "Region", "Product", "Sales" }, headerRowFormatting)
End Using
' Create a custom filter to display values in the "Sales" column that are greater than $4500.
Dim filter As New XlCustomFilters(New XlCustomFilterCriteria(XlFilterOperator.GreaterThanOrEqual, 4500))
sheet.AutoFilterColumns.Add(New XlFilterColumn(2, filter))
' Start filtering data.
sheet.BeginFiltering(sheet.DataRange)
' Generate data for the document.
Dim products() As String = { "Camembert Pierrot", "Gorgonzola Telino", "Mascarpone Fabioli", "Mozzarella di Giovanni" }
Dim amount() As Integer = { 6750, 4500, 3550, 4250, 5500, 6250, 5325, 4235 }
For i As Integer = 0 To 7
Using row As IXlRow = sheet.CreateRow()
Using cell As IXlCell = row.CreateCell()
cell.Value = If(i < 4, "East", "West")
cell.ApplyFormatting(rowFormatting)
End Using
Using cell As IXlCell = row.CreateCell()
cell.Value = products(i Mod 4)
cell.ApplyFormatting(rowFormatting)
End Using
Using cell As IXlCell = row.CreateCell()
cell.Value = amount(i)
cell.ApplyFormatting(rowFormatting)
End Using
End Using
Next i
' Finish filtering.
sheet.EndFiltering()
See Also