Skip to main content

canRedo()

pro version only

This functionality requires PRO version of the DHTMLX Grid (or DHTMLX Suite) package.

checks whether an action within the Grid history can be redone

canRedo(): boolean;

Returns:

Returns true if the redo stack contains actions and the module is not disabled.

Example

// The example shows checking whether redo is possible after undoing
const grid = new dhx.Grid("grid_container", {
    columns: [
        { id: "name", header: [{ text: "Name" }] },
        { id: "value", header: [{ text: "Value" }] },
    ],
    data: [
        { id: "1", name: "Item 1", value: 10 },
    ],
    history: true
});

// modifying data
const updatedItem = { id: "1", name: "Updated Item", value: 15 };
grid.data.update("1", updatedItem);
grid.history.add({
    type: "change",
    batch: [{ ...updatedItem }],
    inverse: { type: "change", batch: [{ id: "1", name: "Item 1", value: 10 }] },
});

// undoing and checking
grid.history.undo();
if (grid.history.canRedo()) {
    console.log("Redo is possible");
    grid.history.redo();
}

Change log:

added in v9.2