ColumnCollection.Remove(Int32, Func<Int32, Boolean>) Method

Removes columns that match the specified condition from the worksheet.

Namespace: DevExpress.Spreadsheet

Assembly: DevExpress.Spreadsheet.v19.1.Core.dll

Declaration

C#

void Remove(
    int first,
    Func<int, bool> predicate
)

VB.NET

Sub Remove(
    first As Integer,
    predicate As Func(Of Integer, Boolean)
)

Parameters

Name	Type	Description
first	Int32	An integer that is the index of the column from which the check should start.
predicate	Func<Int32, Boolean>	A function to test for a condition in each column.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/winforms-spreadsheetcontrol-api-part-3-t231273

RowAndColumnActions.cs

workbook.LoadDocument("Documents\\Document.xlsx");
Worksheet worksheet = workbook.Worksheets[0];
// Create a function specifying the condition to remove worksheet columns.
Func<int, bool> columnRemovalCondition = x => worksheet.Cells[0, x].Value.NumericValue > 3.0 && worksheet.Cells[0, x].Value.NumericValue < 14.0;

// Fill cells with data.
for (int i = 0; i < 15; i++)
{
    worksheet.Cells[i, 0].Value = i + 1;
    worksheet.Cells[0, i].Value = i + 1;
}

// Delete all columns that meet the specified condition.
//worksheet.Columns.Remove(columnRemovalCondition);

// Delete columns that meet the specified condition starting from the 7th column.
worksheet.Columns.Remove(7, columnRemovalCondition);

// Delete columns that meet the specified condition starting from the 5th column to the 14th column.
//worksheet.Columns.Remove(5, 14, columnRemovalCondition);

RowAndColumnActions.vb

workbook.LoadDocument("Documents\Document.xlsx")
Dim worksheet As Worksheet = workbook.Worksheets(0)
' Create a function specifying the condition to remove worksheet columns.
Dim columnRemovalCondition As Func(Of Integer, Boolean) = Function(x) worksheet.Cells(0, x).Value.NumericValue > 3.0 AndAlso worksheet.Cells(0, x).Value.NumericValue < 14.0

' Fill cells with data.
For i As Integer = 0 To 14
    worksheet.Cells(i, 0).Value = i + 1
    worksheet.Cells(0, i).Value = i + 1
Next i

' Delete all columns that meet the specified condition.
'worksheet.Columns.Remove(columnRemovalCondition);

' Delete columns that meet the specified condition starting from the 7th column.
worksheet.Columns.Remove(7, columnRemovalCondition)

' Delete columns that meet the specified condition starting from the 5th column to the 14th column.
'worksheet.Columns.Remove(5, 14, columnRemovalCondition);

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the Remove(Int32, Func<Int32, Boolean>) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

winforms-spreadsheetcontrol-api-part-3-t231273/CS/SpreadsheetControl_API_Part03/CodeExamples/RowAndColumnActions.cs#L53

// Delete columns that meet the specified condition starting from the 7th column.
worksheet.Columns.Remove(7, columnRemovalCondition);

VB.NET

winforms-spreadsheetcontrol-api-part-3-t231273/VB/SpreadsheetControl_API_Part03/CodeExamples/RowAndColumnActions.vb#L51

' Delete columns that meet the specified condition starting from the 7th column.
worksheet.Columns.Remove(7, columnRemovalCondition)