DataRowInfo<T>.DataItem Property

Returns a data item that corresponds to the data row.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v21.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public T DataItem { get; }

Property Value

Type	Description
T	The data item type.

Remarks

Use the RowPreviewTemplate‘s Context parameter to access the DataItem property. This template allows you to show preview sections under each data row across all columns.

The following example demonstrates how to display preview sections with employee images and multi-line notes.

Razor

<DxDataGrid Data="@DataSource">
    <Columns>
        <DxDataGridColumn Field="@nameof(Employee.FirstName)" SortOrder="DataGridColumnSortOrder.Ascending"></DxDataGridColumn>
        <DxDataGridColumn Field="@nameof(Employee.LastName)"></DxDataGridColumn>
        <DxDataGridColumn Field="@nameof(Employee.Position)" Caption="Position" EditorVisible="true"></DxDataGridColumn>
        <DxDataGridDateEditColumn Field="@nameof(Employee.BirthDate)" DisplayFormat="D" EditorFormat="d" 
              Caption="Birth Date" EditorVisible="true"></DxDataGridDateEditColumn>
        <DxDataGridDateEditColumn Field="@nameof(Employee.HireDate)" DisplayFormat="D" EditorFormat="d" 
              Caption="Hire Date" EditorVisible="true"></DxDataGridDateEditColumn>
    </Columns>
    <RowPreviewTemplate Context="ItemInfo">
        @{
            Employee employee = ItemInfo.DataItem;
            <div class="d-flex align-items-start p-1">
                <img src="@(StaticAssetUtils.GetImagePath(employee.ImageFileName))" width="76" />
                <div class="pl-2 text-wrap">@employee.Notes</div>
            </div>
        }
    </RowPreviewTemplate>
</DxDataGrid>

Employee

public partial class Employee {
    public Employee() {
        this.Orders = new List<Order>();
    }
    public int EmployeeId { get; set; }
    public string LastName { get; set; }
    public string FirstName { get; set; }
    public string Title { get; set; }
    public string TitleOfCourtesy { get; set; }
    public Nullable<System.DateTime> BirthDate { get; set; }
    public Nullable<System.DateTime> HireDate { get; set; }
    public string Address { get; set; }
    public string City { get; set; }
    public string Region { get; set; }
    public string PostalCode { get; set; }
    public string Country { get; set; }
    public string HomePhone { get; set; }
    public string Extension { get; set; }
    public byte[] Photo { get; set; }
    public string Notes { get; set; }
    public Nullable<int> ReportsTo { get; set; }
    public string PhotoPath { get; set; }
    public virtual ICollection<Order> Orders { get; set; }
    public string Text => $"{FirstName} {LastName} ({Title})";
    public string ImageFileName => $"Employees/{EmployeeId}.jpg";
}

Run Demo: Data Grid - Row Preview Template