Descripción general de los encabezados de varias columnas React Tree Grid

    The Ignite UI for React Multi-Column Headers feature in React Tree Grid allows you to group columns by placing them under a common multi-header. Each multi-column headers group in the IgrTreeGrid could be a representation of combinations between other groups or columns. This feature is particularly useful when dealing with large datasets where scrolling horizontally might be cumbersome.

    React Tree Grid Multi-Column Headers Example

    The declaration of multi-column headers is achieved by wrapping a set of columns into an columnGroup component with header title information passed.

    <IgrTreeGrid primaryKey="ID" foreignKey="ParentID">
    <IgrColumnGroup header="Contact Information">
        <IgrColumn sortable={true} resizable={true} field="Phone" dataType="string"></IgrColumn>
        <IgrColumn sortable={true} resizable={true} field="Fax" dataType="string"></IgrColumn>
        <IgrColumn sortable={true} resizable={true} field="PostalCode" dataType="string"></IgrColumn>
    </IgrColumnGroup>
</IgrTreeGrid>

    Para alcanzarn-th el nivel de encabezados anidados, debe seguirse la declaración anterior. Así que anidarcolumnGroup conduce al resultado deseado.

    <IgrTreeGrid primaryKey="ID" foreignKey="ParentID" moving={true}>
    <IgrColumnGroup pinned={false} header="General Information">
        <IgrColumn field="HireDate" sortable={true} resizable={true} dataType="date"></IgrColumn>
        <IgrColumnGroup header="Person Details">
            <IgrColumn field="ID" resizable={true} filterable={true} dataType="number"></IgrColumn>
            <IgrColumn field="Title" sortable={true} resizable={true} dataType="string"></IgrColumn>
            <IgrColumn field="Age" sortable={true} resizable={true} dataType="number"></IgrColumn>
        </IgrColumnGroup>
    </IgrColumnGroup>
</IgrTreeGrid>

    Every columnGroup supports moving, pinning and hiding.

    [!Note] When there is a set of columns and column groups, pinning works only for top level column parents. More specifically pinning per nested column groups or columns is not allowed.
    Moving between columns and column groups is allowed only when they are at the same level in the hierarchy and both are in the same group.
    When columns/column-groups are not wrapped by current group which means they are top level columns, moving is allowed between whole visible columns.

    <IgrTreeGrid primaryKey="ID" foreignKey="ParentID" moving={true}>
    <IgrColumnGroup header="Contact Information">
        <IgrColumn field="Phone" movable={true} sortable={true} resizable={true} dataType="string"></IgrColumn>
    </IgrColumnGroup>
    <IgrColumn field="Name" sortable={true} resizable={true} dataType="string"></IgrColumn>
    <IgrColumn field="Title" sortable={true} resizable={true} dataType="string"></IgrColumn>
    <IgrColumn field="Age" sortable={true} resizable={true} dataType="number"></IgrColumn>
</IgrTreeGrid>

    Multi-Column Header Template

    <IgrColumnGroup header="Contact Information" headerTemplate={groupHeaderTemplate}></IgrColumnGroup>

    const groupHeaderTemplate = (e: IgrColumnTemplateContext) => {
  const column = e.column as IgrColumnGroup;
  return (
    <div>
      <span style={{ float: "left" }}>{column.header.toUpperCase()}</span>
    </div>
  );
}

    [!Note] If a header is re-templated and the corresponding column group is movable, you have to set the draggable attribute to false on the templated elements, so that you can handle any of the events that are applied!

    const columnHeaderTemplate = (e: IgrColumnTemplateContext ) => {
  const column = e.column as IgrColumnGroup;
  return (
    <span onClick={onClick}>
      <IgrIcon data-draggable="false"></IgrIcon>
    </span>
  );
}

    El siguiente ejemplo demuestra cómo implementar grupos de columnas contraíbles utilizando plantillas de encabezado.

    Styling

    Además de los temas predefinidos, la cuadrícula se puede personalizar aún más configurando algunas de las propiedades CSS disponibles. En caso de que desee cambiar algunos de los colores, primero debe establecer una clase para la cuadrícula:

    <IgrTreeGrid className="grid"></IgrTreeGrid>

    Luego establezca las propiedades CSS relacionadas con esta clase:

    .grid {
    --ig-grid-header-background: #e0f3ff;
    --ig-grid-header-text-color: #e41c77;
    --ig-grid-header-border-width: 1px;
    --ig-grid-header-border-style: solid;
    --ig-grid-header-border-color: rgba(0, 0, 0, 0.08);
}

    Demo

    API References

    Additional Resources

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