SpreadsheetControl.BeforeFillRange Event

Occurs when a user drags the fill handle to populate cells with data based on values in the source range.

Namespace: DevExpress.Xpf.Spreadsheet

Assembly: DevExpress.Xpf.Spreadsheet.v24.2.dll

NuGet Package: DevExpress.Wpf.Spreadsheet

Declaration

C#

public event BeforeFillRangeEventHandler BeforeFillRange

VB.NET

Public Event BeforeFillRange As BeforeFillRangeEventHandler

Event Data

The BeforeFillRange event's data class is BeforeFillRangeEventArgs. The following properties provide information specific to this event:

Property	Description
Cancel	Gets or sets whether to cancel the fill operation for the current cell range.
OperationType	Gets the fill operation type.
SourceRange	Returns a cell range based on which a user fills the adjacent cells.
TargetRange	Returns a cell range that a user fills with data.

Remarks

The BeforeFillRange event fires in the following cases:

• When a user drags the fill handle to populate the adjacent cells with data based on the source cells’ values (OperationType is FillSeries).

• When a user drags the fill handle with the Ctrl key pressed to copy source cells to the destination range (OperationType is CopyCells).

The event’s Cancel parameter allows you to cancel the operation. The following example shows how to cancel the fill operation if destination cells already contain data:

C#

spreadsheetControl.BeforeFillRange += (s, e) => {
    CellRange destRange = e.TargetRange.Exclude(e.SourceRange);

    foreach (Cell cell in destRange.ExistingCells)
    {
        if (!cell.Value.IsEmpty)
            e.Cancel = true;
    }
};

VB.NET

AddHandler spreadsheetControl.BeforeFillRange,
    Sub(s, e)
        Dim destRange As CellRange = e.TargetRange.Exclude(e.SourceRange)

        For Each cell As Cell In destRange.ExistingCells
            If Not cell.Value.IsEmpty Then
                e.Cancel = True
            End If
        Next cell
    End Sub

The AfterFillRange event is raised when the fill operation is completed.