GridExportOptions.CustomizeCell Property

Allows you to customize a cell in the exported file.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public Action<GridExportCustomizeCellEventArgs> CustomizeCell { get; set; }

Property Value

Type	Description
Action<GridExportCustomizeCellEventArgs>	A delegate method that customize the cell.

Remarks

The CustomizeCell action allows you to perform the following actions.

• Substitute the cell value (Value).
• Insert a hyperlink in the cell (Hyperlink).
• Customize the cell’s format (Formatting).

Set the Handled property to true to apply the specified settings. Otherwise, the cell is exported with the default settings.

The table below lists properties that you can use to get additional information about the processed cell depending on the processed area type (AreaType).

Area Type	Useful property	Property that returns null
Header	ColumnFieldName	DataItem, SummaryItem, GroupFieldName
GroupHeader	ColumnFieldName, GroupFieldName	DataItem, SummaryItem
DataArea	ColumnFieldName, DataItem	SummaryItem, GroupFieldName
GroupFooter	ColumnFieldName, GroupFieldName, SummaryItem	DataItem
TotalFooter	ColumnFieldName, SummaryItem	DataItem, GroupFieldName

The GetRowValue(String) method returns the value of the specified data field in the current row.

Run Demo: Grid - Export Data View Example: Customize Export Settings

@using System.Xml;
<DxGrid @ref="Grid" Data="@Data" >
    <Columns>
        <DxGridDataColumn FieldName="OrderDate" />
        <DxGridDataColumn FieldName="CompanyName"  />
        <DxGridDataColumn FieldName="Country" />
        <DxGridDataColumn FieldName="UnitPrice" DisplayFormat="c" />
        <DxGridDataColumn FieldName="Quantity" />
        <DxGridDataColumn FieldName="Total" UnboundType="GridUnboundColumnType.Decimal" 
                          DisplayFormat="c" UnboundExpression="[UnitPrice]*[Quantity]" />
    </Columns>
</DxGrid>
<DxButton Text="Export in Euro" Click="ExportXlsx_Click" />

@code {
    object Data { get; set; }
    IGrid Grid { get; set; }
    protected override async Task OnInitializedAsync() {
        var invoices = await NwindDataService.GetInvoicesAsync();
        var customers = await NwindDataService.GetCustomersAsync();
        Data = invoices.OrderBy(i => i.OrderDate).Join(customers, i => i.CustomerId, c => c.CustomerId, (i, c) => {
            return new {
                OrderDate = i.OrderDate,
                CompanyName = c.CompanyName,
                City = i.City,
                Region = i.Region,
                Country = i.Country,
                UnitPrice = i.UnitPrice,
                Quantity = i.Quantity
            };
        });
    }
    decimal GetRate() {
        string daylyRate = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml";
        decimal rate = 0;
        XmlTextReader reader = new XmlTextReader(daylyRate);
        while (reader.Read()) {
            if (reader.NodeType == XmlNodeType.Element && reader.MoveToAttribute("currency")) {
                if (reader.Value == "USD") {
                    reader.MoveToAttribute("rate");
                    rate = Convert.ToDecimal(reader.Value);
                    break;
                }

            }
        }
        return rate;
    }

    async Task ExportXlsx_Click() {
        decimal currentRate = GetRate();
        var options = new GridXlExportOptions();
        options.DocumentCulture = new CultureInfo("fr-FR");
        options.SheetName = "(Rate = " + currentRate + ")";
        options.CustomizeCell = e => {
            if (e.AreaType == DevExpress.Export.SheetAreaType.DataArea && (e.ColumnFieldName == "Total" || e.ColumnFieldName == "UnitPrice")) {
                e.Value = (decimal)e.Value / currentRate;
                // Highlight data cells where Total > 1000€
                if (e.ColumnFieldName == "Total" && (decimal)e.Value > 1000) {
                    e.Formatting.BackColor = System.Drawing.Color.LightGreen;
                }
                e.Handled = true;
            }
        };
        await Grid.ExportToXlsxAsync("ExportResult", options);
    }
}

For more information about data export in the Grid component, refer to the following topic: Export Data in Blazor Grid.