TreeListExportCustomizeCellEventArgs.DataItem Property

Returns the data source item that is bound to the data row being processed.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public object DataItem { get; }

Property Value

Type	Description
Object	If the processed cell belongs to a data row, the property returns a data item bound to this row. Otherwise, the property returns null.

Remarks

Use the DataItem property to get the data source item that is bound to the data row being processed. If the current cell does not belong to a data row (the AreaType property returns a value other than DataArea), the DataItem property returns null.

Pass the DataItem property value to the GetDataItemValue method to get the item’s field value when the TreeList is bound to a collection of anonymous objects. In other cases, you can cast the DataItem property value to the corresponding type and use the {DataItem.FieldName} notation to get the item’s field value.

The following example adds a hyperlink to the document’s Name column:

C#

async Task ExportXlsx_Click() {
    await MyTreeList.ExportToXlsxAsync("ExportResult", new TreeListXlExportOptions() {
        CustomizeCell = CustomizeCell
    });
}
void CustomizeCell(TreeListExportCustomizeCellEventArgs e) {
    if (e.AreaType == DevExpress.Export.SheetAreaType.DataArea && e.ColumnFieldName == "Name") {
        var product = e.DataItem as TestModel;
        e.Hyperlink = product.Url;
        e.Handled = true;
    }
};

TestModelService.cs

public class TestModelService {
    private List<TestModel> CreateDataSource() {
        List<TestModel> temp = new List<TestModel>();
        temp.Add(new TestModel() { Name = "WinForms Controls", Universal = true, DXperience = true, WinForms = true, WPF = false, ASP = false, DevExtreme = false, Url = "https://www.devexpress.com/products/net/controls/winforms/" });
        temp.Add(new TestModel() { Name = "WPF Controls", Universal = true, DXperience = true, WinForms = false, WPF = true, ASP = false, DevExtreme = false, Url = "https://www.devexpress.com/products/net/controls/wpf/" });
        temp.Add(new TestModel() { Name = "Blazor UI Components", Universal = true, DXperience = true, WinForms = false, WPF = false, ASP = true, DevExtreme = false, Url = "https://www.devexpress.com/blazor/" });
        temp.Add(new TestModel() { Name = "JavaScript - jQuery, Angular, React, Vue", Universal = true, DXperience = true, WinForms = false, WPF = false, ASP = true, DevExtreme = true, Url = "https://js.devexpress.com/" });
        temp.Add(new TestModel() { Name = "ASP.NET Web Forms Controls and MVC Extensions", Universal = true, DXperience = true, WinForms = false, WPF = false, ASP = true, DevExtreme = false, Url = "https://www.devexpress.com/products/net/controls/asp/" });
        temp.Add(new TestModel() { Name = "Reporting", Universal = true, DXperience = true, WinForms = true, WPF = true, ASP = true, DevExtreme = false, Url = "https://www.devexpress.com/subscriptions/reporting/" });
        temp.Add(new TestModel() { Name = "XPO - ORM Library", Universal = true, DXperience = true, WinForms = true, WPF = true, ASP = true, DevExtreme = true, Url = "https://www.devexpress.com/products/net/orm/" });
        temp.Add(new TestModel() { Name = "XAF - Cross-Platform .NET App UI", Universal = true, DXperience = false, WinForms = false, WPF = false, ASP = false, DevExtreme = false, Url = "https://www.devexpress.com/products/net/application_framework/" });
        return temp;
    }

    private List<TestModel> DataSource { get; set; }
    public TestModelService() {
        DataSource = CreateDataSource();
    }
    public Task<IEnumerable<TestModel>> GetDataSourceAsync(CancellationToken ct = default) {
        return Task.FromResult(DataSource.AsEnumerable());
    }
}