DxTreeList.ExportToCsvAsync(String, TreeListCsvExportOptions) Method

Exports TreeList data in CSV format and downloads the resulting file to the client machine.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public Task ExportToCsvAsync(
    string fileName,
    TreeListCsvExportOptions options = null
)

Parameters

Name	Type	Description
fileName	String	The name of the resulting file.

Optional Parameters

Name	Type	Default	Description
options	TreeListCsvExportOptions	null	An object that contains export options.

Returns

Type	Description
Task	The task that is completed when the file is downloaded.

Remarks

Call the ExportToCsvAsync method to export data in CSV format. Note that only data cell values are exported - summaries and cell style settings are ignored.

The method overloads allow you to write the result to a stream (ExportToCsvAsync(Stream, TreeListCsvExportOptions)) or to a file downloaded to a client machine (current overload). Methods accept a TreeListCsvExportOptions object as a parameter. You can use this parameter to set up export settings.

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

Run Demo: TreeList - Export

Important

Security Considerations

Exported data can contain executable content. To prevent possible security vulnerabilities, set the EncodeExecutableContent property to true to enclose potentially dangerous content in quotation marks prior to exporting it to the CSV format. To learn more, see the property description.

Example

The following example exports TreeList data to CSV format on a button click:

<DxButton Text="Export to CSV" Click="ExportCsv_Click" />

<DxTreeList Data="TreeListData" 
            KeyFieldName="Id" 
            ParentKeyFieldName="ParentId" 
            @ref="MyTreeList">
    <Columns>
        <DxTreeListDataColumn FieldName="Name" Caption="Task" />
        <DxTreeListDataColumn FieldName="EmployeeName" />
        <DxTreeListDataColumn FieldName="StartDate" />
        <DxTreeListDataColumn FieldName="DueDate" />
    </Columns>
</DxTreeList>

@code {
    ITreeList MyTreeList { get; set; }

    async Task ExportCsv_Click() {
        await MyTreeList.ExportToCsvAsync("ExportResult");
    }
}

Implements

ExportToCsvAsync(String, TreeListCsvExportOptions)