Multicolumn Headers

The multi-column headers of the TreeList represent a tree-like structure where one or more columns can be grouped together by a common header.

That common header in turn can be a child of another upper MultiColumn header which can also span both columns and other headers. For a runnable example, refer to the demo on implementing multi-column headers in the TreeList.

columns.Group(group => group
    .Title("Personal Info")
    .Columns(info =>
    {
        info.Add().Field(x => x.LastName).Width(120);
        info.Group(g => g
            .Title("Location")
            .Columns(location =>
            {
                location.Add().Field(c => c.City).Width(140);
                location.Add().Field(c => c.Country).Width(140);
            })
        );
        info.Add().Field(x => x.Phone);
    })
);

The previous example will present the following output.

Multi-column headers

See Also

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