Grid / when adding a cell / using regular expression question

Grid = new dhx.Grid(null, {
columns: [
{id: “a”, header: [{ text: “a”, align: “center” }]},
{id: “b”, header: [{ text: “b”, align: “center” }]},
editable: true

When adding a cell to enter the a column
I want to use the following regular expression so that only numbers can be entered.

this.value = this.value.replace(/[^0-9]/g,’’);

How can I apply this?

You may use the efterEditStart event for the input validation

thank you so much :slight_smile: