Hello Luis,

Thank you for posting in our community.

By design igHierarchicakgrid is not editable until you enable the Updating feature. This means that if you do not enable Updating explicitly users are not going to be able to add, delete or edit rows in both parent and child levels.

However, if you would like to disable editing from the Updating feature you could set the  the enableDeleteRow  and enableAddRow to false  and editMode to none. For example:

 $("#hierarchicalGrid").igHierarchicalGrid({
 width: "100%",
dataSource: data,
 autoGenerateLayouts: false,
 autoGenerateColumns: false,
columns: [
{
 key: "Name",
 headerText: "Name",
 dataType: "string"
}
],
features: [
{
 name: "Updating",
 editMode:"none",
 enableAddRow: false,

 enableDeleteRow: false,
}
],
 defaultChildrenDataProperty: "Products",
columnLayouts: [
{
 name: "Products",
 childrenDataProperty: "Products",
 autoGenerateColumns: false,
columns: [
{
 key: "Quantity",
 headerText: "Quantity",
 dataType: "number"
},
{
 key: "Name",
 headerText: "Name",
 dataType: "string"
}
],
features: [
{
 name: "Updating",
 editMode: "none",
 enableAddRow: false,
 enableDeleteRow: false,
}
]
}
]
　

});

I hope this will help you achieve your requirement.

I also created a small sample illustrating my suggestion and I am attaching it for your reference.

Please let me know if you need any further assistance with this matter.