From 97ba3a24dba7c0d965056e415aea4cdf42b78d6b Mon Sep 17 00:00:00 2001
From: Naveen-Palanivel <103498545+Naveen-Palanivel@users.noreply.github.com>
Date: Fri, 28 Aug 2026 14:20:10 +0530
Subject: [PATCH] 1049732 : Change row height in the Grid exported file
Added a new topic in Grid excel export
Change row height in the Grid exported file using memory stream
---
.../blazor/data-grid/excel-export-options.md | 113 ++++++++++++++++++
1 file changed, 113 insertions(+)
diff --git a/grid-sdk/blazor/data-grid/excel-export-options.md b/grid-sdk/blazor/data-grid/excel-export-options.md
index 4e439b1b4..27c0a79dd 100644
--- a/grid-sdk/blazor/data-grid/excel-export-options.md
+++ b/grid-sdk/blazor/data-grid/excel-export-options.md
@@ -1896,6 +1896,119 @@ This method is helpful when the exported **Excel** file needs to support data an
}
+{% endhighlight %}
+
+{% highlight c# tabtitle="Javascript.js" %}
+
+function saveAsFile(filename, bytesBase64) {
+ var link = document.createElement('a');
+ link.download = filename;
+ link.href = "data:application/octet-stream;base64," + bytesBase64;
+ document.body.appendChild(link);
+ link.click();
+ document.body.removeChild(link);
+}
+
+{% endhighlight %}
+{% endtabs %}
+
+### Change row height in exported file
+
+The Blazor Data Grid can export data as a memory stream, allowing modification of the Excel workbook before the exported file is delivered to the client. Using the [XlsIO](https://www.nuget.org/packages/Syncfusion.XlsIO.Net.Core/) library, worksheet formatting can be customized programmatically during the export process.
+
+The [SetRowHeightInPixels](https://help.syncfusion.com/cr/document-processing/Syncfusion.XlsIO.IWorksheet.html#Syncfusion_XlsIO_IWorksheet_SetRowHeightInPixels_System_Int32_System_Double_) method is used to modify the height of a specific row in the exported Excel file by providing the row index and the required height in pixels. This enables row-level customization in the exported workbook.
+
+In the following example, an [SfNumericTextBox](https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.Inputs.SfNumericTextBox-1.html) component is used to specify the Excel row index dynamically. The selected value is updated through the [ValueChange](https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.Inputs.NumericTextBoxEvents-1.html#Syncfusion_Blazor_Inputs_NumericTextBoxEvents_1_ValueChange) event and stored in the NumericValue property. During the Excel export operation, the value of NumericValue is passed to the `SetRowHeightInPixels` method, allowing the height of the corresponding row in the exported Excel document to be modified. In this sample, the height of the specified row is set to **100** pixels.
+
+{% tabs %}
+{% highlight razor tabtitle="Index.razor" %}
+
+@using Syncfusion.Blazor.Grids
+@using System.IO
+@using Syncfusion.XlsIO
+@inject IJSRuntime JSRuntime
+@using Syncfusion.Blazor.Inputs
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+@code
+{
+ private SfGrid DefaultGrid;
+ public List Orders { get; set; }
+ public int NumericValue { get; set; } = 1;
+
+ protected override void OnInitialized()
+ {
+ Orders = Enumerable.Range(1, 9).Select(x => new Order()
+ {
+ OrderID = x,
+ CustomerID = (new string[] { "ALFKI", "ANANTR", "ANTON", "BLONP", "BOLID" })[new Random().Next(5)],
+ Freight = 2.1 * x,
+ }).ToList();
+ }
+
+ public void OnChange(Syncfusion.Blazor.Inputs.ChangeEventArgs args)
+ {
+ if(args.Value != 0)
+ {
+ NumericValue = args.Value;
+ StateHasChanged();
+ }
+ }
+
+ public async Task ToolbarClickHandler(Syncfusion.Blazor.Navigations.ClickEventArgs args)
+ {
+ if (args.Item.Id == "Grid_excelexport")
+ {
+ ExcelExportProperties ExportProperties = new ExcelExportProperties();
+
+ using var stream = await DefaultGrid.ExportToExcelAsync(asMemoryStream: true, ExportProperties);
+
+ var copyOfStream = new MemoryStream(stream.ToArray());
+
+ using (ExcelEngine excelEngine = new ExcelEngine())
+ {
+ IApplication application = excelEngine.Excel;
+ application.DefaultVersion = ExcelVersion.Xlsx;
+
+ IWorkbook workbook = application.Workbooks.Open(copyOfStream);
+ IWorksheet worksheet = workbook.Worksheets[0];
+
+ // Set the height of the specified row in the exported Excel file.
+ worksheet.SetRowHeightInPixels(NumericValue, 100.0);
+
+ using (MemoryStream outputStream = new MemoryStream())
+ {
+ workbook.SaveAs(outputStream);
+ await JSRuntime.InvokeVoidAsync("saveAsFile", "GridExport.xlsx", Convert.ToBase64String(outputStream.ToArray()));
+ }
+ }
+ }
+ }
+
+ public class Order
+ {
+ public int? OrderID { get; set; }
+ public string CustomerID { get; set; }
+ public double? Freight { get; set; }
+ }
+}
+
{% endhighlight %}
{% highlight c# tabtitle="Javascript.js" %}